Merge branch 'blender2.8' into hair_guideshair_guides

21 files changed, 13703 insertions, 2886 deletions

diff --git a/source/blender/editors/gpencil/CMakeLists.txt b/source/blender/editors/gpencil/CMakeLists.txt
index 587c25031ab..114e55c5704 100644
--- a/source/blender/editors/gpencil/CMakeLists.txt
+++ b/source/blender/editors/gpencil/CMakeLists.txt
@@ -39,18 +39,25 @@ set(INC_SYS
 )
 
 set(SRC
+	annotate_draw.c
+	annotate_paint.c
 	drawgpencil.c
 	editaction_gpencil.c
+	gpencil_add_monkey.c
+	gpencil_add_stroke.c
 	gpencil_brush.c
 	gpencil_convert.c
 	gpencil_data.c
 	gpencil_edit.c
 	gpencil_interpolate.c
+	gpencil_primitive.c
 	gpencil_ops.c
 	gpencil_paint.c
+	gpencil_fill.c
 	gpencil_select.c
 	gpencil_undo.c
 	gpencil_utils.c
+	gpencil_old.c
 
 	gpencil_intern.h
 )
diff --git a/source/blender/editors/gpencil/annotate_draw.c b/source/blender/editors/gpencil/annotate_draw.c
new file mode 100644
index 00000000000..4f6e2004197
--- /dev/null
+++ b/source/blender/editors/gpencil/annotate_draw.c
@@ -0,0 +1,1066 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2008, Blender Foundation
+ * This is a new part of Blender
+ *
+ * Contributor(s): Joshua Leung, Antonio Vazquez
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/gpencil/annotate_draw.c
+ *  \ingroup edgpencil
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <math.h>
+#include <float.h>
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_sys_types.h"
+
+#include "BLI_math.h"
+#include "BLI_utildefines.h"
+#include "BLI_polyfill_2d.h"
+
+#include "BLF_api.h"
+#include "BLT_translation.h"
+
+#include "DNA_gpencil_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_screen_types.h"
+#include "DNA_space_types.h"
+#include "DNA_view3d_types.h"
+#include "DNA_userdef_types.h"
+#include "DNA_object_types.h"
+
+#include "BKE_context.h"
+#include "BKE_global.h"
+#include "BKE_gpencil.h"
+
+#include "WM_api.h"
+
+#include "BIF_glutil.h"
+
+#include "GPU_immediate.h"
+#include "GPU_draw.h"
+#include "GPU_state.h"
+
+#include "ED_gpencil.h"
+#include "ED_screen.h"
+#include "ED_view3d.h"
+#include "ED_space_api.h"
+
+#include "UI_interface_icons.h"
+#include "UI_resources.h"
+
+/* ************************************************** */
+/* GREASE PENCIL DRAWING */
+
+/* ----- General Defines ------ */
+/* flags for sflag */
+typedef enum eDrawStrokeFlags {
+	GP_DRAWDATA_NOSTATUS    = (1 << 0),   /* don't draw status info */
+	GP_DRAWDATA_ONLY3D      = (1 << 1),   /* only draw 3d-strokes */
+	GP_DRAWDATA_ONLYV2D     = (1 << 2),   /* only draw 'canvas' strokes */
+	GP_DRAWDATA_ONLYI2D     = (1 << 3),   /* only draw 'image' strokes */
+	GP_DRAWDATA_IEDITHACK   = (1 << 4),   /* special hack for drawing strokes in Image Editor (weird coordinates) */
+	GP_DRAWDATA_NO_XRAY     = (1 << 5),   /* don't draw xray in 3D view (which is default) */
+	GP_DRAWDATA_NO_ONIONS   = (1 << 6),	  /* no onionskins should be drawn (for animation playback) */
+} eDrawStrokeFlags;
+
+
+/* ----- Tool Buffer Drawing ------ */
+
+/* draw stroke defined in buffer (simple ogl lines/points for now, as dotted lines) */
+static void gp_draw_stroke_buffer(const tGPspoint *points, int totpoints, short thickness,
+                                  short dflag, short sflag, float ink[4])
+{
+	int draw_points = 0;
+
+	/* error checking */
+	if ((points == NULL) || (totpoints <= 0))
+		return;
+
+	/* check if buffer can be drawn */
+	if (dflag & (GP_DRAWDATA_ONLY3D | GP_DRAWDATA_ONLYV2D))
+		return;
+
+	if (sflag & GP_STROKE_ERASER) {
+		/* don't draw stroke at all! */
+		return;
+	}
+
+	GPUVertFormat *format = immVertexFormat();
+	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_I32, 2, GPU_FETCH_INT_TO_FLOAT);
+
+	const tGPspoint *pt = points;
+
+	if (totpoints == 1) {
+		/* if drawing a single point, draw it larger */
+		GPU_point_size((float)(thickness + 2) * points->pressure);
+		immBindBuiltinProgram(GPU_SHADER_3D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_AA);
+		immUniformColor3fvAlpha(ink, ink[3]);
+		immBegin(GPU_PRIM_POINTS, 1);
+		immVertex2iv(pos, &pt->x);
+	}
+	else {
+		float oldpressure = points[0].pressure;
+
+		/* draw stroke curve */
+		GPU_line_width(max_ff(oldpressure * thickness, 1.0));
+
+		immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
+		immUniformColor3fvAlpha(ink, ink[3]);
+
+		/* TODO: implement this with a geometry shader to draw one continuous tapered stroke */
+		immBeginAtMost(GPU_PRIM_LINE_STRIP, totpoints);
+
+		for (int i = 0; i < totpoints; i++, pt++) {
+			/* if there was a significant pressure change, stop the curve, change the thickness of the stroke,
+			 * and continue drawing again (since line-width cannot change in middle of GL_LINE_STRIP)
+			 */
+			if (fabsf(pt->pressure - oldpressure) > 0.2f) {
+				/* need to have 2 points to avoid immEnd assert error */
+				if (draw_points < 2) {
+					immVertex2iv(pos, &(pt - 1)->x);
+				}
+
+				immEnd();
+				draw_points = 0;
+
+				GPU_line_width(max_ff(pt->pressure * thickness, 1.0f));
+				immBeginAtMost(GPU_PRIM_LINE_STRIP, totpoints - i + 1);
+
+				/* need to roll-back one point to ensure that there are no gaps in the stroke */
+				if (i != 0) {
+					immVertex2iv(pos, &(pt - 1)->x);
+					draw_points++;
+				}
+
+				oldpressure = pt->pressure; /* reset our threshold */
+			}
+
+			/* now the point we want */
+			immVertex2iv(pos, &pt->x);
+			draw_points++;
+		}
+		/* need to have 2 points to avoid immEnd assert error */
+		if (draw_points < 2) {
+			immVertex2iv(pos, &(pt - 1)->x);
+		}
+	}
+
+	immEnd();
+	immUnbindProgram();
+}
+
+/* --------- 2D Stroke Drawing Helpers --------- */
+/* change in parameter list */
+static void gp_calc_2d_stroke_fxy(const float pt[3], short sflag, int offsx, int offsy, int winx, int winy, float r_co[2])
+{
+	if (sflag & GP_STROKE_2DSPACE) {
+		r_co[0] = pt[0];
+		r_co[1] = pt[1];
+	}
+	else if (sflag & GP_STROKE_2DIMAGE) {
+		const float x = (float)((pt[0] * winx) + offsx);
+		const float y = (float)((pt[1] * winy) + offsy);
+
+		r_co[0] = x;
+		r_co[1] = y;
+	}
+	else {
+		const float x = (float)(pt[0] / 100 * winx) + offsx;
+		const float y = (float)(pt[1] / 100 * winy) + offsy;
+
+		r_co[0] = x;
+		r_co[1] = y;
+	}
+}
+
+/* ----- Existing Strokes Drawing (3D and Point) ------ */
+
+/* draw a given stroke - just a single dot (only one point) */
+static void gp_draw_stroke_point(
+        const bGPDspoint *points, short thickness, short UNUSED(dflag), short sflag,
+        int offsx, int offsy, int winx, int winy, const float ink[4])
+{
+	const bGPDspoint *pt = points;
+
+	/* get final position using parent matrix */
+	float fpt[3];
+	copy_v3_v3(fpt, &pt->x);
+
+	GPUVertFormat *format = immVertexFormat();
+	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
+
+	if (sflag & GP_STROKE_3DSPACE) {
+		immBindBuiltinProgram(GPU_SHADER_3D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_AA);
+	}
+	else {
+		immBindBuiltinProgram(GPU_SHADER_2D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_AA);
+
+		/* get 2D coordinates of point */
+		float co[3] = { 0.0f };
+		gp_calc_2d_stroke_fxy(fpt, sflag, offsx, offsy, winx, winy, co);
+		copy_v3_v3(fpt, co);
+	}
+
+	/* set color */
+	immUniformColor3fvAlpha(ink, ink[3]);
+
+	/* set point thickness (since there's only one of these) */
+	immUniform1f("size", (float)(thickness + 2) * pt->pressure);
+
+	immBegin(GPU_PRIM_POINTS, 1);
+	immVertex3fv(pos, fpt);
+	immEnd();
+
+	immUnbindProgram();
+}
+
+/* draw a given stroke in 3d (i.e. in 3d-space), using simple ogl lines */
+static void gp_draw_stroke_3d(const bGPDspoint *points, int totpoints, short thickness, bool UNUSED(debug),
+                              short UNUSED(sflag), const float ink[4], bool cyclic)
+{
+	float curpressure = points[0].pressure;
+	float cyclic_fpt[3];
+	int draw_points = 0;
+
+	/* if cyclic needs one vertex more */
+	int cyclic_add = 0;
+	if (cyclic) {
+		cyclic_add++;
+	}
+
+
+	GPUVertFormat *format = immVertexFormat();
+	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
+
+	immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
+	immUniformColor3fvAlpha(ink, ink[3]);
+
+	/* TODO: implement this with a geometry shader to draw one continuous tapered stroke */
+
+	/* draw stroke curve */
+	GPU_line_width(max_ff(curpressure * thickness, 1.0f));
+	immBeginAtMost(GPU_PRIM_LINE_STRIP, totpoints + cyclic_add);
+	const bGPDspoint *pt = points;
+	for (int i = 0; i < totpoints; i++, pt++) {
+		/* if there was a significant pressure change, stop the curve, change the thickness of the stroke,
+		 * and continue drawing again (since line-width cannot change in middle of GL_LINE_STRIP)
+		 * Note: we want more visible levels of pressures when thickness is bigger.
+		 */
+		if (fabsf(pt->pressure - curpressure) > 0.2f / (float)thickness) {
+			/* if the pressure changes before get at least 2 vertices, need to repeat last point to avoid assert in immEnd() */
+			if (draw_points < 2) {
+				const bGPDspoint *pt2 = pt - 1;
+				immVertex3fv(pos, &pt2->x);
+			}
+			immEnd();
+			draw_points = 0;
+
+			curpressure = pt->pressure;
+			GPU_line_width(max_ff(curpressure * thickness, 1.0f));
+			immBeginAtMost(GPU_PRIM_LINE_STRIP, totpoints - i + 1 + cyclic_add);
+
+			/* need to roll-back one point to ensure that there are no gaps in the stroke */
+			if (i != 0) {
+				const bGPDspoint *pt2 = pt - 1;
+				immVertex3fv(pos, &pt2->x);
+				draw_points++;
+			}
+		}
+
+		/* now the point we want */
+		immVertex3fv(pos, &pt->x);
+		draw_points++;
+
+		if (cyclic && i == 0) {
+			/* save first point to use in cyclic */
+			copy_v3_v3(cyclic_fpt, &pt->x);
+		}
+	}
+
+	if (cyclic) {
+		/* draw line to first point to complete the cycle */
+		immVertex3fv(pos, cyclic_fpt);
+		draw_points++;
+	}
+
+	/* if less of two points, need to repeat last point to avoid assert in immEnd() */
+	if (draw_points < 2) {
+		const bGPDspoint *pt2 = pt - 1;
+		immVertex3fv(pos, &pt2->x);
+	}
+
+	immEnd();
+	immUnbindProgram();
+}
+
+/* ----- Fancy 2D-Stroke Drawing ------ */
+
+/* draw a given stroke in 2d */
+static void gp_draw_stroke_2d(const bGPDspoint *points, int totpoints, short thickness_s, short dflag, short sflag,
+                              bool UNUSED(debug), int offsx, int offsy, int winx, int winy, const float ink[4])
+{
+	/* otherwise thickness is twice that of the 3D view */
+	float thickness = (float)thickness_s * 0.5f;
+
+	/* strokes in Image Editor need a scale factor, since units there are not pixels! */
+	float scalefac  = 1.0f;
+	if ((dflag & GP_DRAWDATA_IEDITHACK) && (dflag & GP_DRAWDATA_ONLYV2D)) {
+		scalefac = 0.001f;
+	}
+
+	/* TODO: fancy++ with the magic of shaders */
+
+	/* tessellation code - draw stroke as series of connected quads (triangle strips in fact) with connection
+	 * edges rotated to minimize shrinking artifacts, and rounded endcaps
+	 */
+	{
+		const bGPDspoint *pt1, *pt2;
+		float s0[2], s1[2];     /* segment 'center' points */
+		float pm[2];  /* normal from previous segment. */
+		int i;
+
+		GPUVertFormat *format = immVertexFormat();
+		uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
+
+		immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
+		immUniformColor3fvAlpha(ink, ink[3]);
+		immBegin(GPU_PRIM_TRI_STRIP, totpoints * 2 + 4);
+
+		/* get x and y coordinates from first point */
+		gp_calc_2d_stroke_fxy(&points->x, sflag, offsx, offsy, winx, winy, s0);
+
+		for (i = 0, pt1 = points, pt2 = points + 1; i < (totpoints - 1); i++, pt1++, pt2++) {
+			float t0[2], t1[2];     /* tessellated coordinates */
+			float m1[2], m2[2];     /* gradient and normal */
+			float mt[2], sc[2];     /* gradient for thickness, point for end-cap */
+			float pthick;           /* thickness at segment point */
+
+			/* get x and y coordinates from point2 (point1 has already been computed in previous iteration). */
+			gp_calc_2d_stroke_fxy(&pt2->x, sflag, offsx, offsy, winx, winy, s1);
+
+			/* calculate gradient and normal - 'angle'=(ny/nx) */
+			m1[1] = s1[1] - s0[1];
+			m1[0] = s1[0] - s0[0];
+			normalize_v2(m1);
+			m2[1] = -m1[0];
+			m2[0] = m1[1];
+
+			/* always use pressure from first point here */
+			pthick = (pt1->pressure * thickness * scalefac);
+
+			/* if the first segment, start of segment is segment's normal */
+			if (i == 0) {
+				/* draw start cap first
+				 *	- make points slightly closer to center (about halfway across)
+				 */
+				mt[0] = m2[0] * pthick * 0.5f;
+				mt[1] = m2[1] * pthick * 0.5f;
+				sc[0] = s0[0] - (m1[0] * pthick * 0.75f);
+				sc[1] = s0[1] - (m1[1] * pthick * 0.75f);
+
+				t0[0] = sc[0] - mt[0];
+				t0[1] = sc[1] - mt[1];
+				t1[0] = sc[0] + mt[0];
+				t1[1] = sc[1] + mt[1];
+
+				/* First two points of cap. */
+				immVertex2fv(pos, t0);
+				immVertex2fv(pos, t1);
+
+				/* calculate points for start of segment */
+				mt[0] = m2[0] * pthick;
+				mt[1] = m2[1] * pthick;
+
+				t0[0] = s0[0] - mt[0];
+				t0[1] = s0[1] - mt[1];
+				t1[0] = s0[0] + mt[0];
+				t1[1] = s0[1] + mt[1];
+
+				/* Last two points of start cap (and first two points of first segment). */
+				immVertex2fv(pos, t0);
+				immVertex2fv(pos, t1);
+			}
+			/* if not the first segment, use bisector of angle between segments */
+			else {
+				float mb[2];         /* bisector normal */
+				float athick, dfac;  /* actual thickness, difference between thicknesses */
+
+				/* calculate gradient of bisector (as average of normals) */
+				mb[0] = (pm[0] + m2[0]) / 2;
+				mb[1] = (pm[1] + m2[1]) / 2;
+				normalize_v2(mb);
+
+				/* calculate gradient to apply
+				 *  - as basis, use just pthick * bisector gradient
+				 *	- if cross-section not as thick as it should be, add extra padding to fix it
+				 */
+				mt[0] = mb[0] * pthick;
+				mt[1] = mb[1] * pthick;
+				athick = len_v2(mt);
+				dfac = pthick - (athick * 2);
+
+				if (((athick * 2.0f) < pthick) && (IS_EQF(athick, pthick) == 0)) {
+					mt[0] += (mb[0] * dfac);
+					mt[1] += (mb[1] * dfac);
+				}
+
+				/* calculate points for start of segment */
+				t0[0] = s0[0] - mt[0];
+				t0[1] = s0[1] - mt[1];
+				t1[0] = s0[0] + mt[0];
+				t1[1] = s0[1] + mt[1];
+
+				/* Last two points of previous segment, and first two points of current segment. */
+				immVertex2fv(pos, t0);
+				immVertex2fv(pos, t1);
+			}
+
+			/* if last segment, also draw end of segment (defined as segment's normal) */
+			if (i == totpoints - 2) {
+				/* for once, we use second point's pressure (otherwise it won't be drawn) */
+				pthick = (pt2->pressure * thickness * scalefac);
+
+				/* calculate points for end of segment */
+				mt[0] = m2[0] * pthick;
+				mt[1] = m2[1] * pthick;
+
+				t0[0] = s1[0] - mt[0];
+				t0[1] = s1[1] - mt[1];
+				t1[0] = s1[0] + mt[0];
+				t1[1] = s1[1] + mt[1];
+
+				/* Last two points of last segment (and first two points of end cap). */
+				immVertex2fv(pos, t0);
+				immVertex2fv(pos, t1);
+
+				/* draw end cap as last step
+				 *	- make points slightly closer to center (about halfway across)
+				 */
+				mt[0] = m2[0] * pthick * 0.5f;
+				mt[1] = m2[1] * pthick * 0.5f;
+				sc[0] = s1[0] + (m1[0] * pthick * 0.75f);
+				sc[1] = s1[1] + (m1[1] * pthick * 0.75f);
+
+				t0[0] = sc[0] - mt[0];
+				t0[1] = sc[1] - mt[1];
+				t1[0] = sc[0] + mt[0];
+				t1[1] = sc[1] + mt[1];
+
+				/* Last two points of end cap. */
+				immVertex2fv(pos, t0);
+				immVertex2fv(pos, t1);
+			}
+
+			/* store computed point2 coordinates as point1 ones of next segment. */
+			copy_v2_v2(s0, s1);
+			/* store stroke's 'natural' normal for next stroke to use */
+			copy_v2_v2(pm, m2);
+		}
+
+		immEnd();
+		immUnbindProgram();
+	}
+}
+
+/* ----- Strokes Drawing ------ */
+
+/* Helper for doing all the checks on whether a stroke can be drawn */
+static bool gp_can_draw_stroke(const bGPDstroke *gps, const int dflag)
+{
+	/* skip stroke if it isn't in the right display space for this drawing context */
+	/* 1) 3D Strokes */
+	if ((dflag & GP_DRAWDATA_ONLY3D) && !(gps->flag & GP_STROKE_3DSPACE))
+		return false;
+	if (!(dflag & GP_DRAWDATA_ONLY3D) && (gps->flag & GP_STROKE_3DSPACE))
+		return false;
+
+	/* 2) Screen Space 2D Strokes */
+	if ((dflag & GP_DRAWDATA_ONLYV2D) && !(gps->flag & GP_STROKE_2DSPACE))
+		return false;
+	if (!(dflag & GP_DRAWDATA_ONLYV2D) && (gps->flag & GP_STROKE_2DSPACE))
+		return false;
+
+	/* 3) Image Space (2D) */
+	if ((dflag & GP_DRAWDATA_ONLYI2D) && !(gps->flag & GP_STROKE_2DIMAGE))
+		return false;
+	if (!(dflag & GP_DRAWDATA_ONLYI2D) && (gps->flag & GP_STROKE_2DIMAGE))
+		return false;
+
+	/* skip stroke if it doesn't have any valid data */
+	if ((gps->points == NULL) || (gps->totpoints < 1))
+		return false;
+
+	/* stroke can be drawn */
+	return true;
+}
+
+/* draw a set of strokes */
+static void gp_draw_strokes(
+        bGPdata *UNUSED(gpd), bGPDlayer *UNUSED(gpl), const bGPDframe *gpf, int offsx, int offsy, int winx, int winy,
+        int dflag, bool debug, short lthick, const float color[4])
+{
+	GPU_enable_program_point_size();
+
+	for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
+		/* check if stroke can be drawn */
+		if (gp_can_draw_stroke(gps, dflag) == false) {
+			continue;
+		}
+
+		/* check which stroke-drawer to use */
+		if (dflag & GP_DRAWDATA_ONLY3D) {
+			const int no_xray = (dflag & GP_DRAWDATA_NO_XRAY);
+			int mask_orig = 0;
+
+			if (no_xray) {
+				glGetIntegerv(GL_DEPTH_WRITEMASK, &mask_orig);
+				glDepthMask(0);
+				GPU_depth_test(true);
+
+				/* first arg is normally rv3d->dist, but this isn't
+				 * available here and seems to work quite well without */
+				bglPolygonOffset(1.0f, 1.0f);
+			}
+
+			/* 3D Lines - OpenGL primitives-based */
+			if (gps->totpoints == 1) {
+				gp_draw_stroke_point(gps->points, lthick, dflag, gps->flag, offsx, offsy, winx, winy, color);
+			}
+			else {
+				gp_draw_stroke_3d(gps->points, gps->totpoints, lthick, debug, gps->flag,
+				                  color, gps->flag & GP_STROKE_CYCLIC);
+			}
+
+			if (no_xray) {
+				glDepthMask(mask_orig);
+				GPU_depth_test(false);
+
+				bglPolygonOffset(0.0, 0.0);
+			}
+		}
+		else {
+			/* 2D Strokes... */
+			if (gps->totpoints == 1) {
+				gp_draw_stroke_point(gps->points, lthick, dflag, gps->flag, offsx, offsy, winx, winy, color);
+			}
+			else {
+				gp_draw_stroke_2d(gps->points, gps->totpoints, lthick, dflag, gps->flag, debug,
+				                  offsx, offsy, winx, winy, color);
+			}
+		}
+	}
+
+	GPU_disable_program_point_size();
+}
+
+/* Draw selected verts for strokes being edited */
+static void gp_draw_strokes_edit(
+        bGPdata *gpd, bGPDlayer *gpl, const bGPDframe *gpf,
+        int offsx, int offsy, int winx, int winy,
+        short dflag, short UNUSED(lflag), float alpha)
+{
+	/* if alpha 0 do not draw */
+	if (alpha == 0.0f)
+		return;
+
+	const bool no_xray = (dflag & GP_DRAWDATA_NO_XRAY) != 0;
+	int mask_orig = 0;
+
+	/* set up depth masks... */
+	if (dflag & GP_DRAWDATA_ONLY3D) {
+		if (no_xray) {
+			glGetIntegerv(GL_DEPTH_WRITEMASK, &mask_orig);
+			glDepthMask(0);
+			GPU_depth_test(true);
+
+			/* first arg is normally rv3d->dist, but this isn't
+			 * available here and seems to work quite well without */
+			bglPolygonOffset(1.0f, 1.0f);
+		}
+	}
+
+	GPU_enable_program_point_size();
+
+	/* draw stroke verts */
+	for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
+		/* check if stroke can be drawn */
+		if (gp_can_draw_stroke(gps, dflag) == false)
+			continue;
+
+		/* Optimisation: only draw points for selected strokes
+		 * We assume that selected points can only occur in
+		 * strokes that are selected too.
+		 */
+		if ((gps->flag & GP_STROKE_SELECT) == 0)
+			continue;
+
+		/* Get size of verts:
+		 * - The selected state needs to be larger than the unselected state so that
+		 *   they stand out more.
+		 * - We use the theme setting for size of the unselected verts
+		 */
+		float bsize = UI_GetThemeValuef(TH_GP_VERTEX_SIZE);
+		float vsize;
+		if ((int)bsize > 8) {
+			vsize = 10.0f;
+			bsize = 8.0f;
+		}
+		else {
+			vsize = bsize + 2;
+		}
+
+		float selectColor[4];
+		UI_GetThemeColor3fv(TH_GP_VERTEX_SELECT, selectColor);
+		selectColor[3] = alpha;
+
+		GPUVertFormat *format = immVertexFormat();
+		uint pos; /* specified later */
+		uint size = GPU_vertformat_attr_add(format, "size", GPU_COMP_F32, 1, GPU_FETCH_FLOAT);
+		uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
+
+		if (gps->flag & GP_STROKE_3DSPACE) {
+			pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
+			immBindBuiltinProgram(GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR);
+		}
+		else {
+			pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
+			immBindBuiltinProgram(GPU_SHADER_2D_POINT_VARYING_SIZE_VARYING_COLOR);
+		}
+
+		immBegin(GPU_PRIM_POINTS, gps->totpoints);
+
+		/* Draw start and end point differently if enabled stroke direction hint */
+		bool show_direction_hint = (gpd->flag & GP_DATA_SHOW_DIRECTION) && (gps->totpoints > 1);
+
+		/* Draw all the stroke points (selected or not) */
+		bGPDspoint *pt = gps->points;
+		for (int i = 0; i < gps->totpoints; i++, pt++) {
+			/* size and color first */
+			if (show_direction_hint && i == 0) {
+				/* start point in green bigger */
+				immAttrib3f(color, 0.0f, 1.0f, 0.0f);
+				immAttrib1f(size, vsize + 4);
+			}
+			else if (show_direction_hint && (i == gps->totpoints - 1)) {
+				/* end point in red smaller */
+				immAttrib3f(color, 1.0f, 0.0f, 0.0f);
+				immAttrib1f(size, vsize + 1);
+			}
+			else if (pt->flag & GP_SPOINT_SELECT) {
+				immAttrib3fv(color, selectColor);
+				immAttrib1f(size, vsize);
+			}
+			else {
+				immAttrib3fv(color, gpl->color);
+				immAttrib1f(size, bsize);
+			}
+
+			/* then position */
+			if (gps->flag & GP_STROKE_3DSPACE) {
+				immVertex3fv(pos, &pt->x);
+			}
+			else {
+				float co[2];
+				gp_calc_2d_stroke_fxy(&pt->x, gps->flag, offsx, offsy, winx, winy, co);
+				immVertex2fv(pos, co);
+			}
+		}
+
+		immEnd();
+		immUnbindProgram();
+	}
+
+	GPU_disable_program_point_size();
+
+	/* clear depth mask */
+	if (dflag & GP_DRAWDATA_ONLY3D) {
+		if (no_xray) {
+			glDepthMask(mask_orig);
+			GPU_depth_test(false);
+
+			bglPolygonOffset(0.0, 0.0);
+#if 0
+			glDisable(GL_POLYGON_OFFSET_LINE);
+			glPolygonOffset(0, 0);
+#endif
+		}
+	}
+}
+
+/* ----- General Drawing ------ */
+
+/* loop over gpencil data layers, drawing them */
+static void gp_draw_data_layers(
+        bGPdata *gpd, int offsx, int offsy, int winx, int winy,
+        int cfra, int dflag, float alpha)
+{
+	float ink[4];
+
+	for (bGPDlayer *gpl = gpd->layers.first; gpl; gpl = gpl->next) {
+		bool debug = (gpl->flag & GP_LAYER_DRAWDEBUG);
+		short lthick = gpl->thickness;
+
+		/* apply layer opacity */
+		copy_v3_v3(ink, gpl->color);
+		ink[3] = gpl->opacity;
+
+		/* don't draw layer if hidden */
+		if (gpl->flag & GP_LAYER_HIDE)
+			continue;
+
+		/* get frame to draw */
+		bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, cfra, 0);
+		if (gpf == NULL)
+			continue;
+
+		/* set basic stroke thickness */
+		GPU_line_width(lthick);
+
+		/* Add layer drawing settings to the set of "draw flags"
+		 * NOTE: If the setting doesn't apply, it *must* be cleared,
+		 *       as dflag's carry over from the previous layer
+		 */
+#define GP_DRAWFLAG_APPLY(condition, draw_flag_value)     { \
+			if (condition) dflag |= (draw_flag_value);      \
+			else           dflag &= ~(draw_flag_value);     \
+		} (void)0
+
+		/* xray... */
+		GP_DRAWFLAG_APPLY((gpl->flag & GP_LAYER_NO_XRAY), GP_DRAWDATA_NO_XRAY);
+
+#undef GP_DRAWFLAG_APPLY
+
+
+		/* draw the strokes already in active frame */
+		gp_draw_strokes(gpd, gpl, gpf, offsx, offsy, winx, winy, dflag, debug, lthick, ink);
+
+		/* Draw verts of selected strokes
+		 *  - when doing OpenGL renders, we don't want to be showing these, as that ends up flickering
+		 * 	- locked layers can't be edited, so there's no point showing these verts
+		 *    as they will have no bearings on what gets edited
+		 *  - only show when in editmode, since operators shouldn't work otherwise
+		 *    (NOTE: doing it this way means that the toggling editmode shows visible change immediately)
+		 */
+		/* XXX: perhaps we don't want to show these when users are drawing... */
+		if ((G.f & G_RENDER_OGL) == 0 &&
+		    (gpl->flag & GP_LAYER_LOCKED) == 0 &&
+		    (gpd->flag & GP_DATA_STROKE_EDITMODE))
+		{
+			gp_draw_strokes_edit(gpd, gpl, gpf, offsx, offsy, winx, winy, dflag, gpl->flag, alpha);
+		}
+
+		/* Check if may need to draw the active stroke cache, only if this layer is the active layer
+		 * that is being edited. (Stroke buffer is currently stored in gp-data)
+		 */
+		if (ED_gpencil_session_active() && (gpl->flag & GP_LAYER_ACTIVE) &&
+		    (gpf->flag & GP_FRAME_PAINT))
+		{
+			/* Buffer stroke needs to be drawn with a different linestyle
+			 * to help differentiate them from normal strokes.
+			 *
+			 * It should also be noted that sbuffer contains temporary point types
+			 * i.e. tGPspoints NOT bGPDspoints
+			 */
+			gp_draw_stroke_buffer(
+			        gpd->runtime.sbuffer,
+			        gpd->runtime.sbuffer_size, lthick,
+			        dflag, gpd->runtime.sbuffer_sflag, ink);
+		}
+	}
+}
+
+/* draw a short status message in the top-right corner */
+static void gp_draw_status_text(const bGPdata *gpd, ARegion *ar)
+{
+	rcti rect;
+
+	/* Cannot draw any status text when drawing OpenGL Renders */
+	if (G.f & G_RENDER_OGL)
+		return;
+
+	/* Get bounds of region - Necessary to avoid problems with region overlap */
+	ED_region_visible_rect(ar, &rect);
+
+	/* for now, this should only be used to indicate when we are in stroke editmode */
+	if (gpd->flag & GP_DATA_STROKE_EDITMODE) {
+		const char *printable = IFACE_("GPencil Stroke Editing");
+		float       printable_size[2];
+
+		int font_id = BLF_default();
+
+		BLF_width_and_height(font_id, printable, BLF_DRAW_STR_DUMMY_MAX, &printable_size[0], &printable_size[1]);
+
+		int xco = (rect.xmax - U.widget_unit) - (int)printable_size[0];
+		int yco = (rect.ymax - U.widget_unit);
+
+		/* text label */
+		UI_FontThemeColor(font_id, TH_TEXT_HI);
+#ifdef WITH_INTERNATIONAL
+		BLF_draw_default(xco, yco, 0.0f, printable, BLF_DRAW_STR_DUMMY_MAX);
+#else
+		BLF_draw_default_ascii(xco, yco, 0.0f, printable, BLF_DRAW_STR_DUMMY_MAX);
+#endif
+
+		/* grease pencil icon... */
+		// XXX: is this too intrusive?
+		GPU_blend_set_func_separate(GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+		GPU_blend(true);
+
+		xco -= U.widget_unit;
+		yco -= (int)printable_size[1] / 2;
+
+		UI_icon_draw(xco, yco, ICON_GREASEPENCIL);
+
+		GPU_blend(false);
+	}
+}
+
+/* draw grease-pencil datablock */
+static void gp_draw_data(
+        bGPdata *gpd, int offsx, int offsy, int winx, int winy,
+        int cfra, int dflag, float alpha)
+{
+	/* turn on smooth lines (i.e. anti-aliasing) */
+	GPU_line_smooth(true);
+
+	/* turn on alpha-blending */
+	GPU_blend_set_func_separate(GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+	GPU_blend(true);
+
+	/* draw! */
+	gp_draw_data_layers(gpd, offsx, offsy, winx, winy, cfra, dflag, alpha);
+
+	/* turn off alpha blending, then smooth lines */
+	GPU_blend(false); // alpha blending
+	GPU_line_smooth(false); // smooth lines
+}
+
+/* if we have strokes for scenes (3d view)/clips (movie clip editor)
+ * and objects/tracks, multiple data blocks have to be drawn */
+static void gp_draw_data_all(
+        Scene *scene, bGPdata *gpd, int offsx, int offsy, int winx, int winy,
+        int cfra, int dflag, const char spacetype)
+{
+	bGPdata *gpd_source = NULL;
+	float alpha = 1.0f;
+
+	if (scene) {
+		if (spacetype == SPACE_VIEW3D) {
+			gpd_source = (scene->gpd ? scene->gpd : NULL);
+		}
+		else if (spacetype == SPACE_CLIP && scene->clip) {
+			/* currently drawing only gpencil data from either clip or track, but not both - XXX fix logic behind */
+			gpd_source = (scene->clip->gpd ? scene->clip->gpd : NULL);
+		}
+
+		if (gpd_source) {
+			gp_draw_data(gpd_source, offsx, offsy, winx, winy, cfra, dflag, alpha);
+		}
+	}
+
+	/* scene/clip data has already been drawn, only object/track data is drawn here
+	 * if gpd_source == gpd, we don't have any object/track data and we can skip */
+	if (gpd_source == NULL || (gpd_source && gpd_source != gpd)) {
+		gp_draw_data(gpd, offsx, offsy, winx, winy, cfra, dflag, alpha);
+	}
+}
+
+/* ----- Grease Pencil Sketches Drawing API ------ */
+
+/* ............................
+ * XXX
+ *	We need to review the calls below, since they may be/are not that suitable for
+ *	the new ways that we intend to be drawing data...
+ * ............................ */
+
+/* draw grease-pencil sketches to specified 2d-view that uses ibuf corrections */
+void ED_gpencil_draw_2dimage(const bContext *C)
+{
+	wmWindowManager *wm = CTX_wm_manager(C);
+	ScrArea *sa = CTX_wm_area(C);
+	ARegion *ar = CTX_wm_region(C);
+	Scene *scene = CTX_data_scene(C);
+
+	int offsx, offsy, sizex, sizey;
+	int dflag = GP_DRAWDATA_NOSTATUS;
+
+	bGPdata *gpd = ED_gpencil_data_get_active(C); // XXX
+	if (gpd == NULL) return;
+
+	/* calculate rect */
+	switch (sa->spacetype) {
+		case SPACE_IMAGE: /* image */
+		case SPACE_CLIP: /* clip */
+		{
+			/* just draw using standard scaling (settings here are currently ignored anyways) */
+			/* FIXME: the opengl poly-strokes don't draw at right thickness when done this way, so disabled */
+			offsx = 0;
+			offsy = 0;
+			sizex = ar->winx;
+			sizey = ar->winy;
+
+			wmOrtho2(ar->v2d.cur.xmin, ar->v2d.cur.xmax, ar->v2d.cur.ymin, ar->v2d.cur.ymax);
+
+			dflag |= GP_DRAWDATA_ONLYV2D | GP_DRAWDATA_IEDITHACK;
+			break;
+		}
+		case SPACE_SEQ: /* sequence */
+		{
+			/* just draw using standard scaling (settings here are currently ignored anyways) */
+			offsx = 0;
+			offsy = 0;
+			sizex = ar->winx;
+			sizey = ar->winy;
+
+			/* NOTE: I2D was used in 2.4x, but the old settings for that have been deprecated
+			 * and everything moved to standard View2d
+			 */
+			dflag |= GP_DRAWDATA_ONLYV2D;
+			break;
+		}
+		default: /* for spacetype not yet handled */
+			offsx = 0;
+			offsy = 0;
+			sizex = ar->winx;
+			sizey = ar->winy;
+
+			dflag |= GP_DRAWDATA_ONLYI2D;
+			break;
+	}
+
+	if (ED_screen_animation_playing(wm)) {
+		/* don't show onionskins during animation playback/scrub (i.e. it obscures the poses)
+		 * OpenGL Renders (i.e. final output), or depth buffer (i.e. not real strokes)
+		 */
+		dflag |= GP_DRAWDATA_NO_ONIONS;
+	}
+
+	/* draw it! */
+	gp_draw_data_all(scene, gpd, offsx, offsy, sizex, sizey, CFRA, dflag, sa->spacetype);
+}
+
+/* draw grease-pencil sketches to specified 2d-view assuming that matrices are already set correctly
+ * Note: this gets called twice - first time with onlyv2d=true to draw 'canvas' strokes,
+ * second time with onlyv2d=false for screen-aligned strokes */
+void ED_gpencil_draw_view2d(const bContext *C, bool onlyv2d)
+{
+	wmWindowManager *wm = CTX_wm_manager(C);
+	ScrArea *sa = CTX_wm_area(C);
+	ARegion *ar = CTX_wm_region(C);
+	Scene *scene = CTX_data_scene(C);
+	int dflag = 0;
+
+	/* check that we have grease-pencil stuff to draw */
+	if (sa == NULL) return;
+	bGPdata *gpd = ED_gpencil_data_get_active(C); // XXX
+	if (gpd == NULL) return;
+
+	/* special hack for Image Editor */
+	/* FIXME: the opengl poly-strokes don't draw at right thickness when done this way, so disabled */
+	if (ELEM(sa->spacetype, SPACE_IMAGE, SPACE_CLIP))
+		dflag |= GP_DRAWDATA_IEDITHACK;
+
+	/* draw it! */
+	if (onlyv2d) dflag |= (GP_DRAWDATA_ONLYV2D | GP_DRAWDATA_NOSTATUS);
+	if (ED_screen_animation_playing(wm)) dflag |= GP_DRAWDATA_NO_ONIONS;
+
+	gp_draw_data_all(scene, gpd, 0, 0, ar->winx, ar->winy, CFRA, dflag, sa->spacetype);
+
+	/* draw status text (if in screen/pixel-space) */
+	if (!onlyv2d) {
+		gp_draw_status_text(gpd, ar);
+	}
+}
+
+
+/* draw annotations sketches to specified 3d-view assuming that matrices are already set correctly
+ * Note: this gets called twice - first time with only3d=true to draw 3d-strokes,
+ * second time with only3d=false for screen-aligned strokes */
+void ED_gpencil_draw_view3d_annotations(
+        Scene *scene, struct Depsgraph *depsgraph,
+        View3D *v3d, ARegion *ar,
+        bool only3d)
+{
+	int dflag = 0;
+	RegionView3D *rv3d = ar->regiondata;
+	int offsx,  offsy,  winx,  winy;
+
+	/* check that we have grease-pencil stuff to draw */
+	/* XXX: Hardcoded reference here may get out of sync if we change how we fetch annotation data */
+	bGPdata *gpd = scene->gpd;
+	if (gpd == NULL) return;
+
+	/* when rendering to the offscreen buffer we don't want to
+	 * deal with the camera border, otherwise map the coords to the camera border. */
+	if ((rv3d->persp == RV3D_CAMOB) && !(G.f & G_RENDER_OGL)) {
+		rctf rectf;
+		ED_view3d_calc_camera_border(scene, depsgraph, ar, v3d, rv3d, &rectf, true); /* no shift */
+
+		offsx = round_fl_to_int(rectf.xmin);
+		offsy = round_fl_to_int(rectf.ymin);
+		winx  = round_fl_to_int(rectf.xmax - rectf.xmin);
+		winy  = round_fl_to_int(rectf.ymax - rectf.ymin);
+	}
+	else {
+		offsx = 0;
+		offsy = 0;
+		winx  = ar->winx;
+		winy  = ar->winy;
+	}
+
+	/* set flags */
+	if (only3d) {
+		/* 3D strokes/3D space:
+		 * - only 3D space points
+		 * - don't status text either (as it's the wrong space)
+		 */
+		dflag |= (GP_DRAWDATA_ONLY3D | GP_DRAWDATA_NOSTATUS);
+	}
+
+	if (v3d->flag2 & V3D_RENDER_OVERRIDE) {
+		/* don't draw status text when "only render" flag is set */
+		dflag |= GP_DRAWDATA_NOSTATUS;
+	}
+
+	/* draw it! */
+	gp_draw_data_all(scene, gpd, offsx, offsy, winx, winy, CFRA, dflag, v3d->spacetype);
+}
+
+#if 0 // XXX: Reinstate, after renaming the functions
+
+void ED_gpencil_draw_ex(Scene *scene, bGPdata *gpd, int winx, int winy, const int cfra, const char spacetype)
+{
+	int dflag = GP_DRAWDATA_NOSTATUS | GP_DRAWDATA_ONLYV2D;
+
+	gp_draw_data_all(scene, gpd, 0, 0, winx, winy, cfra, dflag, spacetype);
+}
+
+#endif
+
+/* ************************************************** */
diff --git a/source/blender/editors/gpencil/annotate_paint.c b/source/blender/editors/gpencil/annotate_paint.c
new file mode 100644
index 00000000000..b551f3d630b
--- /dev/null
+++ b/source/blender/editors/gpencil/annotate_paint.c
@@ -0,0 +1,2393 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2008/2018, Blender Foundation
+ * This is a new part of Blender
+ *
+ * Contributor(s): Joshua Leung
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/gpencil/annotate_paint.c
+ *  \ingroup edgpencil
+ */
+
+
+#include <stdio.h>
+#include <stddef.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_blenlib.h"
+#include "BLI_math.h"
+#include "BLI_utildefines.h"
+#include "BLI_math_geom.h"
+
+#include "BLT_translation.h"
+
+#include "PIL_time.h"
+
+#include "BKE_colortools.h"
+#include "BKE_context.h"
+#include "BKE_global.h"
+#include "BKE_gpencil.h"
+#include "BKE_main.h"
+#include "BKE_report.h"
+#include "BKE_screen.h"
+#include "BKE_tracking.h"
+
+#include "DNA_object_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_gpencil_types.h"
+#include "DNA_windowmanager_types.h"
+
+#include "UI_view2d.h"
+
+#include "ED_gpencil.h"
+#include "ED_screen.h"
+#include "ED_view3d.h"
+#include "ED_clip.h"
+
+#include "BIF_glutil.h"
+
+#include "GPU_immediate.h"
+#include "GPU_immediate_util.h"
+#include "GPU_state.h"
+
+#include "RNA_access.h"
+#include "RNA_define.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "DEG_depsgraph.h"
+
+#include "gpencil_intern.h"
+
+/* ******************************************* */
+/* 'Globals' and Defines */
+
+/* values for tGPsdata->status */
+typedef enum eGPencil_PaintStatus {
+	GP_STATUS_IDLING = 0,   /* stroke isn't in progress yet */
+	GP_STATUS_PAINTING,     /* a stroke is in progress */
+	GP_STATUS_ERROR,        /* something wasn't correctly set up */
+	GP_STATUS_DONE          /* painting done */
+} eGPencil_PaintStatus;
+
+/* Return flags for adding points to stroke buffer */
+typedef enum eGP_StrokeAdd_Result {
+	GP_STROKEADD_INVALID    = -2,       /* error occurred - insufficient info to do so */
+	GP_STROKEADD_OVERFLOW   = -1,       /* error occurred - cannot fit any more points */
+	GP_STROKEADD_NORMAL,                /* point was successfully added */
+	GP_STROKEADD_FULL                   /* cannot add any more points to buffer */
+} eGP_StrokeAdd_Result;
+
+/* Runtime flags */
+typedef enum eGPencil_PaintFlags {
+	GP_PAINTFLAG_FIRSTRUN       = (1 << 0),    /* operator just started */
+	GP_PAINTFLAG_STROKEADDED    = (1 << 1),
+	GP_PAINTFLAG_V3D_ERASER_DEPTH = (1 << 2),
+	GP_PAINTFLAG_SELECTMASK     = (1 << 3),
+} eGPencil_PaintFlags;
+
+
+/* Temporary 'Stroke' Operation data
+ *   "p" = op->customdata
+ */
+typedef struct tGPsdata {
+	Main *bmain;
+	Scene *scene;       /* current scene from context */
+	struct Depsgraph *depsgraph;
+
+	wmWindow *win;      /* window where painting originated */
+	ScrArea *sa;        /* area where painting originated */
+	ARegion *ar;        /* region where painting originated */
+	View2D *v2d;        /* needed for GP_STROKE_2DSPACE */
+	rctf *subrect;      /* for using the camera rect within the 3d view */
+	rctf subrect_data;
+
+	GP_SpaceConversion gsc; /* settings to pass to gp_points_to_xy() */
+
+	PointerRNA ownerPtr; /* pointer to owner of gp-datablock */
+	bGPdata *gpd;       /* gp-datablock layer comes from */
+	bGPDlayer *gpl;     /* layer we're working on */
+	bGPDframe *gpf;     /* frame we're working on */
+
+	char *align_flag;   /* projection-mode flags (toolsettings - eGPencil_Placement_Flags) */
+
+	eGPencil_PaintStatus status;     /* current status of painting */
+	eGPencil_PaintModes  paintmode;  /* mode for painting */
+	eGPencil_PaintFlags  flags;      /* flags that can get set during runtime (eGPencil_PaintFlags) */
+
+	short radius;       /* radius of influence for eraser */
+
+	int mval[2];        /* current mouse-position */
+	int mvalo[2];       /* previous recorded mouse-position */
+
+	float pressure;     /* current stylus pressure */
+	float opressure;    /* previous stylus pressure */
+
+	/* These need to be doubles, as (at least under unix) they are in seconds since epoch,
+	 * float (and its 7 digits precision) is definitively not enough here!
+	 * double, with its 15 digits precision, ensures us millisecond precision for a few centuries at least.
+	 */
+	double inittime;    /* Used when converting to path */
+	double curtime;     /* Used when converting to path */
+	double ocurtime;    /* Used when converting to path */
+
+	float imat[4][4];   /* inverted transformation matrix applying when converting coords from screen-space
+	                     * to region space */
+	float mat[4][4];
+
+	float custom_color[4]; /* custom color - hack for enforcing a particular color for track/mask editing */
+
+	void *erasercursor; /* radial cursor data for drawing eraser */
+
+	short straight[2];   /* 1: line horizontal, 2: line vertical, other: not defined, second element position */
+	int lock_axis;       /* lock drawing to one axis */
+
+	short keymodifier;   /* key used for invoking the operator */
+} tGPsdata;
+
+/* ------ */
+
+/* Macros for accessing sensitivity thresholds... */
+/* minimum number of pixels mouse should move before new point created */
+#define MIN_MANHATTEN_PX    (U.gp_manhattendist)
+/* minimum length of new segment before new point can be added */
+#define MIN_EUCLIDEAN_PX    (U.gp_euclideandist)
+
+static bool gp_stroke_added_check(tGPsdata *p)
+{
+	return (p->gpf && p->gpf->strokes.last && p->flags & GP_PAINTFLAG_STROKEADDED);
+}
+
+static void gp_stroke_added_enable(tGPsdata *p)
+{
+	BLI_assert(p->gpf->strokes.last != NULL);
+	p->flags |= GP_PAINTFLAG_STROKEADDED;
+}
+
+/* ------ */
+/* Forward defines for some functions... */
+
+static void gp_session_validatebuffer(tGPsdata *p);
+
+/* ******************************************* */
+/* Context Wrangling... */
+
+/* check if context is suitable for drawing */
+static bool gpencil_draw_poll(bContext *C)
+{
+	if (ED_operator_regionactive(C)) {
+		/* check if current context can support GPencil data */
+		if (ED_gpencil_data_get_pointers(C, NULL) != NULL) {
+			/* check if Grease Pencil isn't already running */
+			if (ED_gpencil_session_active() == 0)
+				return 1;
+			else
+				CTX_wm_operator_poll_msg_set(C, "Annotation operator is already active");
+		}
+		else {
+			CTX_wm_operator_poll_msg_set(C, "Failed to find Grease Pencil data to draw into");
+		}
+	}
+	else {
+		CTX_wm_operator_poll_msg_set(C, "Active region not set");
+	}
+
+	return 0;
+}
+
+/* check if projecting strokes into 3d-geometry in the 3D-View */
+static bool gpencil_project_check(tGPsdata *p)
+{
+	bGPdata *gpd = p->gpd;
+	return ((gpd->runtime.sbuffer_sflag & GP_STROKE_3DSPACE) && (*p->align_flag & (GP_PROJECT_DEPTH_VIEW | GP_PROJECT_DEPTH_STROKE)));
+}
+
+/* ******************************************* */
+/* Calculations/Conversions */
+
+/* Utilities --------------------------------- */
+
+/* get the reference point for stroke-point conversions */
+static void gp_get_3d_reference(tGPsdata *p, float vec[3])
+{
+	View3D *v3d = p->sa->spacedata.first;
+	const float *fp = ED_view3d_cursor3d_get(p->scene, v3d)->location;
+
+	/* use 3D-cursor */
+	copy_v3_v3(vec, fp);
+}
+
+/* Stroke Editing ---------------------------- */
+
+/* check if the current mouse position is suitable for adding a new point */
+static bool gp_stroke_filtermval(tGPsdata *p, const int mval[2], int pmval[2])
+{
+	int dx = abs(mval[0] - pmval[0]);
+	int dy = abs(mval[1] - pmval[1]);
+
+	/* if buffer is empty, just let this go through (i.e. so that dots will work) */
+	if (p->gpd->runtime.sbuffer_size == 0)
+		return true;
+
+	/* check if mouse moved at least certain distance on both axes (best case)
+	 *	- aims to eliminate some jitter-noise from input when trying to draw straight lines freehand
+	 */
+	else if ((dx > MIN_MANHATTEN_PX) && (dy > MIN_MANHATTEN_PX))
+		return true;
+
+	/* check if the distance since the last point is significant enough
+	 *	- prevents points being added too densely
+	 *	- distance here doesn't use sqrt to prevent slowness... we should still be safe from overflows though
+	 */
+	else if ((dx * dx + dy * dy) > MIN_EUCLIDEAN_PX * MIN_EUCLIDEAN_PX)
+		return true;
+
+	/* mouse 'didn't move' */
+	else
+		return false;
+}
+
+/* reproject the points of the stroke to a plane locked to axis to avoid stroke offset */
+static void gp_project_points_to_plane(RegionView3D *rv3d, bGPDstroke *gps, const float origin[3], const int axis)
+{
+	float plane_normal[3];
+	float vn[3];
+
+	float ray[3];
+	float rpoint[3];
+
+	/* normal vector for a plane locked to axis */
+	zero_v3(plane_normal);
+	plane_normal[axis] = 1.0f;
+
+	/* Reproject the points in the plane */
+	for (int i = 0; i < gps->totpoints; i++) {
+		bGPDspoint *pt = &gps->points[i];
+
+		/* get a vector from the point with the current view direction of the viewport */
+		ED_view3d_global_to_vector(rv3d, &pt->x, vn);
+
+		/* calculate line extrem point to create a ray that cross the plane */
+		mul_v3_fl(vn, -50.0f);
+		add_v3_v3v3(ray, &pt->x, vn);
+
+		/* if the line never intersect, the point is not changed */
+		if (isect_line_plane_v3(rpoint, &pt->x, ray, origin, plane_normal)) {
+			copy_v3_v3(&pt->x, rpoint);
+		}
+	}
+}
+
+/* reproject stroke to plane locked to axis in 3d cursor location */
+static void gp_reproject_toplane(tGPsdata *p, bGPDstroke *gps)
+{
+	bGPdata *gpd = p->gpd;
+	float origin[3];
+	float cursor[3];
+	RegionView3D *rv3d = p->ar->regiondata;
+
+	/* verify the stroke mode is CURSOR 3d space mode */
+	if ((gpd->runtime.sbuffer_sflag & GP_STROKE_3DSPACE) == 0) {
+		return;
+	}
+	if ((*p->align_flag & GP_PROJECT_VIEWSPACE) == 0) {
+		return;
+	}
+	if ((*p->align_flag & GP_PROJECT_DEPTH_VIEW) || (*p->align_flag & GP_PROJECT_DEPTH_STROKE)) {
+		return;
+	}
+
+	/* get 3d cursor and set origin for locked axis only. Uses axis-1 because the enum for XYZ start with 1 */
+	gp_get_3d_reference(p, cursor);
+	zero_v3(origin);
+	origin[p->lock_axis - 1] = cursor[p->lock_axis - 1];
+
+	gp_project_points_to_plane(rv3d, gps, origin, p->lock_axis - 1);
+}
+
+/* convert screen-coordinates to buffer-coordinates */
+/* XXX this method needs a total overhaul! */
+static void gp_stroke_convertcoords(tGPsdata *p, const int mval[2], float out[3], float *depth)
+{
+	bGPdata *gpd = p->gpd;
+
+	/* in 3d-space - pt->x/y/z are 3 side-by-side floats */
+	if (gpd->runtime.sbuffer_sflag & GP_STROKE_3DSPACE) {
+		if (gpencil_project_check(p) && (ED_view3d_autodist_simple(p->ar, mval, out, 0, depth))) {
+			/* projecting onto 3D-Geometry
+			 *	- nothing more needs to be done here, since view_autodist_simple() has already done it
+			 */
+		}
+		else {
+			float mval_prj[2];
+			float rvec[3], dvec[3];
+			float mval_f[2] = {UNPACK2(mval)};
+			float zfac;
+
+			/* Current method just converts each point in screen-coordinates to
+			 * 3D-coordinates using the 3D-cursor as reference. In general, this
+			 * works OK, but it could of course be improved.
+			 *
+			 * TODO:
+			 *	- investigate using nearest point(s) on a previous stroke as
+			 *	  reference point instead or as offset, for easier stroke matching
+			 */
+
+			gp_get_3d_reference(p, rvec);
+			zfac = ED_view3d_calc_zfac(p->ar->regiondata, rvec, NULL);
+
+			if (ED_view3d_project_float_global(p->ar, rvec, mval_prj, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK) {
+				sub_v2_v2v2(mval_f, mval_prj, mval_f);
+				ED_view3d_win_to_delta(p->ar, mval_f, dvec, zfac);
+				sub_v3_v3v3(out, rvec, dvec);
+			}
+			else {
+				zero_v3(out);
+			}
+		}
+	}
+
+	/* 2d - on 'canvas' (assume that p->v2d is set) */
+	else if ((gpd->runtime.sbuffer_sflag & GP_STROKE_2DSPACE) && (p->v2d)) {
+		UI_view2d_region_to_view(p->v2d, mval[0], mval[1], &out[0], &out[1]);
+		mul_v3_m4v3(out, p->imat, out);
+	}
+
+	/* 2d - relative to screen (viewport area) */
+	else {
+		if (p->subrect == NULL) { /* normal 3D view */
+			out[0] = (float)(mval[0]) / (float)(p->ar->winx) * 100;
+			out[1] = (float)(mval[1]) / (float)(p->ar->winy) * 100;
+		}
+		else { /* camera view, use subrect */
+			out[0] = ((mval[0] - p->subrect->xmin) / BLI_rctf_size_x(p->subrect)) * 100;
+			out[1] = ((mval[1] - p->subrect->ymin) / BLI_rctf_size_y(p->subrect)) * 100;
+		}
+	}
+}
+
+/* add current stroke-point to buffer (returns whether point was successfully added) */
+static short gp_stroke_addpoint(
+        tGPsdata *p, const int mval[2], float pressure, double curtime)
+{
+	bGPdata *gpd = p->gpd;
+	tGPspoint *pt;
+	ToolSettings *ts = p->scene->toolsettings;
+
+	/* check painting mode */
+	if (p->paintmode == GP_PAINTMODE_DRAW_STRAIGHT) {
+		/* straight lines only - i.e. only store start and end point in buffer */
+		if (gpd->runtime.sbuffer_size == 0) {
+			/* first point in buffer (start point) */
+			pt = (tGPspoint *)(gpd->runtime.sbuffer);
+
+			/* store settings */
+			copy_v2_v2_int(&pt->x, mval);
+			pt->pressure = 1.0f; /* T44932 - Pressure vals are unreliable, so ignore for now */
+			pt->strength = 1.0f;
+			pt->time = (float)(curtime - p->inittime);
+
+			/* increment buffer size */
+			gpd->runtime.sbuffer_size++;
+		}
+		else {
+			/* just reset the endpoint to the latest value
+			 *	- assume that pointers for this are always valid...
+			 */
+			pt = ((tGPspoint *)(gpd->runtime.sbuffer) + 1);
+
+			/* store settings */
+			copy_v2_v2_int(&pt->x, mval);
+			pt->pressure = 1.0f; /* T44932 - Pressure vals are unreliable, so ignore for now */
+			pt->strength = 1.0f;
+			pt->time = (float)(curtime - p->inittime);
+
+			/* now the buffer has 2 points (and shouldn't be allowed to get any larger) */
+			gpd->runtime.sbuffer_size = 2;
+		}
+
+		/* can keep carrying on this way :) */
+		return GP_STROKEADD_NORMAL;
+	}
+	else if (p->paintmode == GP_PAINTMODE_DRAW) { /* normal drawing */
+		/* check if still room in buffer */
+		if (gpd->runtime.sbuffer_size >= GP_STROKE_BUFFER_MAX)
+			return GP_STROKEADD_OVERFLOW;
+
+		/* get pointer to destination point */
+		pt = ((tGPspoint *)(gpd->runtime.sbuffer) + gpd->runtime.sbuffer_size);
+
+		/* store settings */
+		copy_v2_v2_int(&pt->x, mval);
+		pt->pressure = pressure;
+		pt->strength = 1.0f;  /* unused for annotations, but initialise for easier conversions to GP Object */
+
+		/* point time */
+		pt->time = (float)(curtime - p->inittime);
+
+		/* increment counters */
+		gpd->runtime.sbuffer_size++;
+
+		/* check if another operation can still occur */
+		if (gpd->runtime.sbuffer_size == GP_STROKE_BUFFER_MAX)
+			return GP_STROKEADD_FULL;
+		else
+			return GP_STROKEADD_NORMAL;
+	}
+	else if (p->paintmode == GP_PAINTMODE_DRAW_POLY) {
+		/* get pointer to destination point */
+		pt = (tGPspoint *)(gpd->runtime.sbuffer);
+
+		/* store settings */
+		copy_v2_v2_int(&pt->x, mval);
+		pt->pressure = 1.0f; /* T44932 - Pressure vals are unreliable, so ignore for now */
+		pt->strength = 1.0f;
+		pt->time = (float)(curtime - p->inittime);
+
+		/* if there's stroke for this poly line session add (or replace last) point
+		 * to stroke. This allows to draw lines more interactively (see new segment
+		 * during mouse slide, e.g.)
+		 */
+		if (gp_stroke_added_check(p)) {
+			bGPDstroke *gps = p->gpf->strokes.last;
+			bGPDspoint *pts;
+
+			/* first time point is adding to temporary buffer -- need to allocate new point in stroke */
+			if (gpd->runtime.sbuffer_size == 0) {
+				gps->points = MEM_reallocN(gps->points, sizeof(bGPDspoint) * (gps->totpoints + 1));
+				gps->totpoints++;
+			}
+
+			pts = &gps->points[gps->totpoints - 1];
+
+			/* special case for poly lines: normally,
+			 * depth is needed only when creating new stroke from buffer,
+			 * but poly lines are converting to stroke instantly,
+			 * so initialize depth buffer before converting coordinates
+			 */
+			if (gpencil_project_check(p)) {
+				View3D *v3d = p->sa->spacedata.first;
+
+				view3d_region_operator_needs_opengl(p->win, p->ar);
+				ED_view3d_autodist_init(
+				        p->depsgraph, p->ar, v3d, (ts->annotate_v3d_align & GP_PROJECT_DEPTH_STROKE) ? 1 : 0);
+			}
+
+			/* convert screen-coordinates to appropriate coordinates (and store them) */
+			gp_stroke_convertcoords(p, &pt->x, &pts->x, NULL);
+			/* if axis locked, reproject to plane locked (only in 3d space) */
+			if (p->lock_axis > GP_LOCKAXIS_NONE) {
+				gp_reproject_toplane(p, gps);
+			}
+
+			/* copy pressure and time */
+			pts->pressure = pt->pressure;
+			pts->strength = pt->strength;
+			pts->time = pt->time;
+
+			/* force fill recalc */
+			gps->flag |= GP_STROKE_RECALC_CACHES;
+		}
+
+		/* increment counters */
+		if (gpd->runtime.sbuffer_size == 0)
+			gpd->runtime.sbuffer_size++;
+
+		return GP_STROKEADD_NORMAL;
+	}
+
+	/* return invalid state for now... */
+	return GP_STROKEADD_INVALID;
+}
+
+/* simplify a stroke (in buffer) before storing it
+ *	- applies a reverse Chaikin filter
+ *	- code adapted from etch-a-ton branch
+ */
+static void gp_stroke_simplify(tGPsdata *p)
+{
+	bGPdata *gpd = p->gpd;
+	tGPspoint *old_points = (tGPspoint *)gpd->runtime.sbuffer;
+	short num_points = gpd->runtime.sbuffer_size;
+	short flag = gpd->runtime.sbuffer_sflag;
+	short i, j;
+
+	/* only simplify if simplification is enabled, and we're not doing a straight line */
+	if (!(U.gp_settings & GP_PAINT_DOSIMPLIFY) || (p->paintmode == GP_PAINTMODE_DRAW_STRAIGHT))
+		return;
+
+	/* don't simplify if less than 4 points in buffer */
+	if ((num_points <= 4) || (old_points == NULL))
+		return;
+
+	/* clear buffer (but don't free mem yet) so that we can write to it
+	 *	- firstly set sbuffer to NULL, so a new one is allocated
+	 *	- secondly, reset flag after, as it gets cleared auto
+	 */
+	gpd->runtime.sbuffer = NULL;
+	gp_session_validatebuffer(p);
+	gpd->runtime.sbuffer_sflag = flag;
+
+/* macro used in loop to get position of new point
+ *	- used due to the mixture of datatypes in use here
+ */
+#define GP_SIMPLIFY_AVPOINT(offs, sfac) \
+	{ \
+		co[0] += (float)(old_points[offs].x * sfac); \
+		co[1] += (float)(old_points[offs].y * sfac); \
+		pressure += old_points[offs].pressure * sfac; \
+		time += old_points[offs].time * sfac; \
+	} (void)0
+
+	/* XXX Here too, do not lose start and end points! */
+	gp_stroke_addpoint(p, &old_points->x, old_points->pressure, p->inittime + (double)old_points->time);
+	for (i = 0, j = 0; i < num_points; i++) {
+		if (i - j == 3) {
+			float co[2], pressure, time;
+			int mco[2];
+
+			/* initialize values */
+			co[0] = 0.0f;
+			co[1] = 0.0f;
+			pressure = 0.0f;
+			time = 0.0f;
+
+			/* using macro, calculate new point */
+			GP_SIMPLIFY_AVPOINT(j, -0.25f);
+			GP_SIMPLIFY_AVPOINT(j + 1, 0.75f);
+			GP_SIMPLIFY_AVPOINT(j + 2, 0.75f);
+			GP_SIMPLIFY_AVPOINT(j + 3, -0.25f);
+
+			/* set values for adding */
+			mco[0] = (int)co[0];
+			mco[1] = (int)co[1];
+
+			/* ignore return values on this... assume to be ok for now */
+			gp_stroke_addpoint(p, mco, pressure, p->inittime + (double)time);
+
+			j += 2;
+		}
+	}
+	gp_stroke_addpoint(p, &old_points[num_points - 1].x, old_points[num_points - 1].pressure,
+	                   p->inittime + (double)old_points[num_points - 1].time);
+
+	/* free old buffer */
+	MEM_freeN(old_points);
+}
+
+/* make a new stroke from the buffer data */
+static void gp_stroke_newfrombuffer(tGPsdata *p)
+{
+	bGPdata *gpd = p->gpd;
+	bGPDlayer *gpl = p->gpl;
+	bGPDstroke *gps;
+	bGPDspoint *pt;
+	tGPspoint *ptc;
+	ToolSettings *ts = p->scene->toolsettings;
+
+	int i, totelem;
+	/* since strokes are so fine, when using their depth we need a margin otherwise they might get missed */
+	int depth_margin = (ts->annotate_v3d_align & GP_PROJECT_DEPTH_STROKE) ? 4 : 0;
+
+	/* get total number of points to allocate space for
+	 *	- drawing straight-lines only requires the endpoints
+	 */
+	if (p->paintmode == GP_PAINTMODE_DRAW_STRAIGHT)
+		totelem = (gpd->runtime.sbuffer_size >= 2) ? 2 : gpd->runtime.sbuffer_size;
+	else
+		totelem = gpd->runtime.sbuffer_size;
+
+	/* exit with error if no valid points from this stroke */
+	if (totelem == 0) {
+		if (G.debug & G_DEBUG)
+			printf("Error: No valid points in stroke buffer to convert (tot=%d)\n", gpd->runtime.sbuffer_size);
+		return;
+	}
+
+	/* special case for poly line -- for already added stroke during session
+	 * coordinates are getting added to stroke immediately to allow more
+	 * interactive behavior
+	 */
+	if (p->paintmode == GP_PAINTMODE_DRAW_POLY) {
+		if (gp_stroke_added_check(p)) {
+			return;
+		}
+	}
+
+	/* allocate memory for a new stroke */
+	gps = MEM_callocN(sizeof(bGPDstroke), "gp_stroke");
+
+	/* copy appropriate settings for stroke */
+	gps->totpoints = totelem;
+	gps->thickness = gpl->thickness;
+	gps->flag = gpd->runtime.sbuffer_sflag;
+	gps->inittime = p->inittime;
+
+	/* enable recalculation flag by default (only used if hq fill) */
+	gps->flag |= GP_STROKE_RECALC_CACHES;
+
+	/* allocate enough memory for a continuous array for storage points */
+	gps->points = MEM_callocN(sizeof(bGPDspoint) * gps->totpoints, "gp_stroke_points");
+	gps->tot_triangles = 0;
+
+	/* set pointer to first non-initialized point */
+	pt = gps->points + (gps->totpoints - totelem);
+
+	/* copy points from the buffer to the stroke */
+	if (p->paintmode == GP_PAINTMODE_DRAW_STRAIGHT) {
+		/* straight lines only -> only endpoints */
+		{
+			/* first point */
+			ptc = gpd->runtime.sbuffer;
+
+			/* convert screen-coordinates to appropriate coordinates (and store them) */
+			gp_stroke_convertcoords(p, &ptc->x, &pt->x, NULL);
+			/* if axis locked, reproject to plane locked (only in 3d space) */
+			if (p->lock_axis > GP_LOCKAXIS_NONE) {
+				gp_reproject_toplane(p, gps);
+			}
+			/* copy pressure and time */
+			pt->pressure = ptc->pressure;
+			pt->strength = ptc->strength;
+			CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
+			pt->time = ptc->time;
+
+			pt++;
+		}
+
+		if (totelem == 2) {
+			/* last point if applicable */
+			ptc = ((tGPspoint *)gpd->runtime.sbuffer) + (gpd->runtime.sbuffer_size - 1);
+
+			/* convert screen-coordinates to appropriate coordinates (and store them) */
+			gp_stroke_convertcoords(p, &ptc->x, &pt->x, NULL);
+			/* if axis locked, reproject to plane locked (only in 3d space) */
+			if (p->lock_axis > GP_LOCKAXIS_NONE) {
+				gp_reproject_toplane(p, gps);
+			}
+
+			/* copy pressure and time */
+			pt->pressure = ptc->pressure;
+			pt->strength = ptc->strength;
+			CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
+			pt->time = ptc->time;
+		}
+	}
+	else if (p->paintmode == GP_PAINTMODE_DRAW_POLY) {
+		/* first point */
+		ptc = gpd->runtime.sbuffer;
+
+		/* convert screen-coordinates to appropriate coordinates (and store them) */
+		gp_stroke_convertcoords(p, &ptc->x, &pt->x, NULL);
+		/* if axis locked, reproject to plane locked (only in 3d space) */
+		if (p->lock_axis > GP_LOCKAXIS_NONE) {
+			gp_reproject_toplane(p, gps);
+		}
+		/* copy pressure and time */
+		pt->pressure = ptc->pressure;
+		pt->strength = ptc->strength;
+		pt->time = ptc->time;
+	}
+	else {
+		float *depth_arr = NULL;
+
+		/* get an array of depths, far depths are blended */
+		if (gpencil_project_check(p)) {
+			int mval[2], mval_prev[2] = { 0 };
+			int interp_depth = 0;
+			int found_depth = 0;
+
+			depth_arr = MEM_mallocN(sizeof(float) * gpd->runtime.sbuffer_size, "depth_points");
+
+			for (i = 0, ptc = gpd->runtime.sbuffer; i < gpd->runtime.sbuffer_size; i++, ptc++, pt++) {
+				copy_v2_v2_int(mval, &ptc->x);
+
+				if ((ED_view3d_autodist_depth(p->ar, mval, depth_margin, depth_arr + i) == 0) &&
+				    (i && (ED_view3d_autodist_depth_seg(p->ar, mval, mval_prev, depth_margin + 1, depth_arr + i) == 0)))
+				{
+					interp_depth = true;
+				}
+				else {
+					found_depth = true;
+				}
+
+				copy_v2_v2_int(mval_prev, mval);
+			}
+
+			if (found_depth == false) {
+				/* eeh... not much we can do.. :/, ignore depth in this case, use the 3D cursor */
+				for (i = gpd->runtime.sbuffer_size - 1; i >= 0; i--)
+					depth_arr[i] = 0.9999f;
+			}
+			else {
+				if (ts->annotate_v3d_align & GP_PROJECT_DEPTH_STROKE_ENDPOINTS) {
+					/* remove all info between the valid endpoints */
+					int first_valid = 0;
+					int last_valid = 0;
+
+					for (i = 0; i < gpd->runtime.sbuffer_size; i++) {
+						if (depth_arr[i] != FLT_MAX)
+							break;
+					}
+					first_valid = i;
+
+					for (i = gpd->runtime.sbuffer_size - 1; i >= 0; i--) {
+						if (depth_arr[i] != FLT_MAX)
+							break;
+					}
+					last_valid = i;
+
+					/* invalidate non-endpoints, so only blend between first and last */
+					for (i = first_valid + 1; i < last_valid; i++)
+						depth_arr[i] = FLT_MAX;
+
+					interp_depth = true;
+				}
+
+				if (interp_depth) {
+					interp_sparse_array(depth_arr, gpd->runtime.sbuffer_size, FLT_MAX);
+				}
+			}
+		}
+
+
+		pt = gps->points;
+
+		/* convert all points (normal behavior) */
+		for (i = 0, ptc = gpd->runtime.sbuffer; i < gpd->runtime.sbuffer_size && ptc; i++, ptc++, pt++) {
+			/* convert screen-coordinates to appropriate coordinates (and store them) */
+			gp_stroke_convertcoords(p, &ptc->x, &pt->x, depth_arr ? depth_arr + i : NULL);
+
+			/* copy pressure and time */
+			pt->pressure = ptc->pressure;
+			pt->strength = ptc->strength;
+			CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
+			pt->time = ptc->time;
+		}
+
+		/* if axis locked, reproject to plane locked (only in 3d space) */
+		if (p->lock_axis > GP_LOCKAXIS_NONE) {
+			gp_reproject_toplane(p, gps);
+		}
+
+		if (depth_arr)
+			MEM_freeN(depth_arr);
+	}
+
+	/* add stroke to frame */
+	BLI_addtail(&p->gpf->strokes, gps);
+	gp_stroke_added_enable(p);
+}
+
+/* --- 'Eraser' for 'Paint' Tool ------ */
+
+/* helper to free a stroke
+ * NOTE: gps->dvert and gps->triangles should be NULL, but check anyway for good measure
+ */
+static void gp_free_stroke(bGPdata *UNUSED(gpd), bGPDframe *gpf, bGPDstroke *gps)
+{
+	if (gps->points) {
+		MEM_freeN(gps->points);
+	}
+
+	if (gps->dvert) {
+		BKE_gpencil_free_stroke_weights(gps);
+		MEM_freeN(gps->dvert);
+	}
+
+	if (gps->triangles) {
+		MEM_freeN(gps->triangles);
+	}
+
+	BLI_freelinkN(&gpf->strokes, gps);
+}
+
+
+/* which which point is infront (result should only be used for comparison) */
+static float view3d_point_depth(const RegionView3D *rv3d, const float co[3])
+{
+	if (rv3d->is_persp) {
+		return ED_view3d_calc_zfac(rv3d, co, NULL);
+	}
+	else {
+		return -dot_v3v3(rv3d->viewinv[2], co);
+	}
+}
+
+/* only erase stroke points that are visible (3d view) */
+static bool gp_stroke_eraser_is_occluded(tGPsdata *p, const bGPDspoint *pt, const int x, const int y)
+{
+	if ((p->sa->spacetype == SPACE_VIEW3D) &&
+	    (p->flags & GP_PAINTFLAG_V3D_ERASER_DEPTH))
+	{
+		RegionView3D *rv3d = p->ar->regiondata;
+		const int mval[2] = {x, y};
+		float mval_3d[3];
+
+		if (ED_view3d_autodist_simple(p->ar, mval, mval_3d, 0, NULL)) {
+			const float depth_mval = view3d_point_depth(rv3d, mval_3d);
+			const float depth_pt   = view3d_point_depth(rv3d, &pt->x);
+
+			if (depth_pt > depth_mval) {
+				return true;
+			}
+		}
+	}
+	return false;
+}
+
+/* eraser tool - evaluation per stroke */
+/* TODO: this could really do with some optimization (KD-Tree/BVH?) */
+static void gp_stroke_eraser_dostroke(tGPsdata *p,
+                                      bGPDframe *gpf, bGPDstroke *gps,
+                                      const int mval[2], const int mvalo[2],
+                                      const int radius, const rcti *rect)
+{
+	bGPDspoint *pt1, *pt2;
+	int pc1[2] = {0};
+	int pc2[2] = {0};
+	int i;
+
+	if (gps->totpoints == 0) {
+		/* just free stroke */
+		gp_free_stroke(p->gpd, gpf, gps);
+	}
+	else if (gps->totpoints == 1) {
+		/* only process if it hasn't been masked out... */
+		if (!(p->flags & GP_PAINTFLAG_SELECTMASK) || (gps->points->flag & GP_SPOINT_SELECT)) {
+			gp_point_to_xy(&p->gsc, gps, gps->points, &pc1[0], &pc1[1]);
+
+			/* do boundbox check first */
+			if ((!ELEM(V2D_IS_CLIPPED, pc1[0], pc1[1])) && BLI_rcti_isect_pt(rect, pc1[0], pc1[1])) {
+				/* only check if point is inside */
+				if (len_v2v2_int(mval, pc1) <= radius) {
+					/* free stroke */
+					gp_free_stroke(p->gpd, gpf, gps);
+				}
+			}
+		}
+	}
+	else {
+		/* Perform culling? */
+		bool do_cull = false;
+
+		/* Clear Tags
+		 *
+		 * Note: It's better this way, as we are sure that
+		 * we don't miss anything, though things will be
+		 * slightly slower as a result
+		 */
+		for (i = 0; i < gps->totpoints; i++) {
+			bGPDspoint *pt = &gps->points[i];
+			pt->flag &= ~GP_SPOINT_TAG;
+		}
+
+		/* First Pass: Loop over the points in the stroke
+		 *   1) Thin out parts of the stroke under the brush
+		 *   2) Tag "too thin" parts for removal (in second pass)
+		 */
+		for (i = 0; (i + 1) < gps->totpoints; i++) {
+			/* get points to work with */
+			pt1 = gps->points + i;
+			pt2 = gps->points + i + 1;
+
+			/* only process if it hasn't been masked out... */
+			if ((p->flags & GP_PAINTFLAG_SELECTMASK) && !(gps->points->flag & GP_SPOINT_SELECT))
+				continue;
+
+			gp_point_to_xy(&p->gsc, gps, pt1, &pc1[0], &pc1[1]);
+			gp_point_to_xy(&p->gsc, gps, pt2, &pc2[0], &pc2[1]);
+
+			/* Check that point segment of the boundbox of the eraser stroke */
+			if (((!ELEM(V2D_IS_CLIPPED, pc1[0], pc1[1])) && BLI_rcti_isect_pt(rect, pc1[0], pc1[1])) ||
+			    ((!ELEM(V2D_IS_CLIPPED, pc2[0], pc2[1])) && BLI_rcti_isect_pt(rect, pc2[0], pc2[1])))
+			{
+				/* Check if point segment of stroke had anything to do with
+				 * eraser region  (either within stroke painted, or on its lines)
+				 *  - this assumes that linewidth is irrelevant
+				 */
+				if (gp_stroke_inside_circle(mval, mvalo, radius, pc1[0], pc1[1], pc2[0], pc2[1])) {
+					if ((gp_stroke_eraser_is_occluded(p, pt1, pc1[0], pc1[1]) == false) ||
+					    (gp_stroke_eraser_is_occluded(p, pt2, pc2[0], pc2[1]) == false))
+					{
+						/* Edge is affected - Check individual points now */
+						if (len_v2v2_int(mval, pc1) <= radius) {
+							pt1->flag |= GP_SPOINT_TAG;
+						}
+						if (len_v2v2_int(mval, pc2) <= radius) {
+							pt2->flag |= GP_SPOINT_TAG;
+						}
+						do_cull = true;
+					}
+				}
+			}
+		}
+
+		/* Second Pass: Remove any points that are tagged */
+		if (do_cull) {
+			gp_stroke_delete_tagged_points(gpf, gps, gps->next, GP_SPOINT_TAG, false);
+		}
+	}
+}
+
+/* erase strokes which fall under the eraser strokes */
+static void gp_stroke_doeraser(tGPsdata *p)
+{
+	bGPDframe *gpf = p->gpf;
+	bGPDstroke *gps, *gpn;
+	rcti rect;
+
+	/* rect is rectangle of eraser */
+	rect.xmin = p->mval[0] - p->radius;
+	rect.ymin = p->mval[1] - p->radius;
+	rect.xmax = p->mval[0] + p->radius;
+	rect.ymax = p->mval[1] + p->radius;
+
+	if (p->sa->spacetype == SPACE_VIEW3D) {
+		if (p->flags & GP_PAINTFLAG_V3D_ERASER_DEPTH) {
+			View3D *v3d = p->sa->spacedata.first;
+			view3d_region_operator_needs_opengl(p->win, p->ar);
+			ED_view3d_autodist_init(p->depsgraph, p->ar, v3d, 0);
+		}
+	}
+
+	/* loop over strokes of active layer only (session init already took care of ensuring validity),
+	 * checking segments for intersections to remove
+	 */
+	for (gps = gpf->strokes.first; gps; gps = gpn) {
+		gpn = gps->next;
+		/* Not all strokes in the datablock may be valid in the current editor/context
+		 * (e.g. 2D space strokes in the 3D view, if the same datablock is shared)
+		 */
+		if (ED_gpencil_stroke_can_use_direct(p->sa, gps)) {
+			gp_stroke_eraser_dostroke(p, gpf, gps, p->mval, p->mvalo, p->radius, &rect);
+		}
+	}
+}
+
+/* ******************************************* */
+/* Sketching Operator */
+
+/* clear the session buffers (call this before AND after a paint operation) */
+static void gp_session_validatebuffer(tGPsdata *p)
+{
+	bGPdata *gpd = p->gpd;
+
+	/* clear memory of buffer (or allocate it if starting a new session) */
+	if (gpd->runtime.sbuffer) {
+		/* printf("\t\tGP - reset sbuffer\n"); */
+		memset(gpd->runtime.sbuffer, 0, sizeof(tGPspoint) * GP_STROKE_BUFFER_MAX);
+	}
+	else {
+		/* printf("\t\tGP - allocate sbuffer\n"); */
+		gpd->runtime.sbuffer = MEM_callocN(sizeof(tGPspoint) * GP_STROKE_BUFFER_MAX, "gp_session_strokebuffer");
+	}
+
+	/* reset indices */
+	gpd->runtime.sbuffer_size = 0;
+
+	/* reset flags */
+	gpd->runtime.sbuffer_sflag = 0;
+
+	/* reset inittime */
+	p->inittime = 0.0;
+}
+
+/* (re)init new painting data */
+static bool gp_session_initdata(bContext *C, tGPsdata *p)
+{
+	Main *bmain = CTX_data_main(C);
+	bGPdata **gpd_ptr = NULL;
+	ScrArea *curarea = CTX_wm_area(C);
+	ARegion *ar = CTX_wm_region(C);
+	ToolSettings *ts = CTX_data_tool_settings(C);
+
+	/* make sure the active view (at the starting time) is a 3d-view */
+	if (curarea == NULL) {
+		p->status = GP_STATUS_ERROR;
+		if (G.debug & G_DEBUG)
+			printf("Error: No active view for painting\n");
+		return 0;
+	}
+
+	/* pass on current scene and window */
+	p->bmain = CTX_data_main(C);
+	p->scene = CTX_data_scene(C);
+	p->depsgraph = CTX_data_depsgraph(C);
+	p->win = CTX_wm_window(C);
+
+	unit_m4(p->imat);
+	unit_m4(p->mat);
+
+	switch (curarea->spacetype) {
+		/* supported views first */
+		case SPACE_VIEW3D:
+		{
+			/* View3D *v3d = curarea->spacedata.first; */
+			/* RegionView3D *rv3d = ar->regiondata; */
+
+			/* set current area
+			 *	- must verify that region data is 3D-view (and not something else)
+			 */
+			/* CAUTION: If this is the "toolbar", then this will change on the first stroke */
+			p->sa = curarea;
+			p->ar = ar;
+			p->align_flag = &ts->annotate_v3d_align;
+
+			if (ar->regiondata == NULL) {
+				p->status = GP_STATUS_ERROR;
+				if (G.debug & G_DEBUG)
+					printf("Error: 3D-View active region doesn't have any region data, so cannot be drawable\n");
+				return 0;
+			}
+			break;
+		}
+		case SPACE_NODE:
+		{
+			/* SpaceNode *snode = curarea->spacedata.first; */
+
+			/* set current area */
+			p->sa = curarea;
+			p->ar = ar;
+			p->v2d = &ar->v2d;
+			p->align_flag = &ts->gpencil_v2d_align;
+			break;
+		}
+		case SPACE_SEQ:
+		{
+			SpaceSeq *sseq = curarea->spacedata.first;
+
+			/* set current area */
+			p->sa = curarea;
+			p->ar = ar;
+			p->v2d = &ar->v2d;
+			p->align_flag = &ts->gpencil_seq_align;
+
+			/* check that gpencil data is allowed to be drawn */
+			if (sseq->mainb == SEQ_DRAW_SEQUENCE) {
+				p->status = GP_STATUS_ERROR;
+				if (G.debug & G_DEBUG)
+					printf("Error: In active view (sequencer), active mode doesn't support Grease Pencil\n");
+				return 0;
+			}
+			break;
+		}
+		case SPACE_IMAGE:
+		{
+			/* SpaceImage *sima = curarea->spacedata.first; */
+
+			/* set the current area */
+			p->sa = curarea;
+			p->ar = ar;
+			p->v2d = &ar->v2d;
+			p->align_flag = &ts->gpencil_ima_align;
+			break;
+		}
+		case SPACE_CLIP:
+		{
+			SpaceClip *sc = curarea->spacedata.first;
+			MovieClip *clip = ED_space_clip_get_clip(sc);
+
+			if (clip == NULL) {
+				p->status = GP_STATUS_ERROR;
+				return false;
+			}
+
+			/* set the current area */
+			p->sa = curarea;
+			p->ar = ar;
+			p->v2d = &ar->v2d;
+			p->align_flag = &ts->gpencil_v2d_align;
+
+			invert_m4_m4(p->imat, sc->unistabmat);
+
+			/* custom color for new layer */
+			p->custom_color[0] = 1.0f;
+			p->custom_color[1] = 0.0f;
+			p->custom_color[2] = 0.5f;
+			p->custom_color[3] = 0.9f;
+
+			if (sc->gpencil_src == SC_GPENCIL_SRC_TRACK) {
+				int framenr = ED_space_clip_get_clip_frame_number(sc);
+				MovieTrackingTrack *track = BKE_tracking_track_get_active(&clip->tracking);
+				MovieTrackingMarker *marker = track ? BKE_tracking_marker_get(track, framenr) : NULL;
+
+				if (marker) {
+					p->imat[3][0] -= marker->pos[0];
+					p->imat[3][1] -= marker->pos[1];
+				}
+				else {
+					p->status = GP_STATUS_ERROR;
+					return false;
+				}
+			}
+
+			invert_m4_m4(p->mat, p->imat);
+			copy_m4_m4(p->gsc.mat, p->mat);
+			break;
+		}
+		/* unsupported views */
+		default:
+		{
+			p->status = GP_STATUS_ERROR;
+			if (G.debug & G_DEBUG)
+				printf("Error: Annotations are not supported in this editor\n");
+			return 0;
+		}
+	}
+
+	/* get gp-data */
+	gpd_ptr = ED_gpencil_data_get_pointers(C, &p->ownerPtr);
+	if ((gpd_ptr == NULL) || !ED_gpencil_data_owner_is_annotation(&p->ownerPtr)) {
+		p->status = GP_STATUS_ERROR;
+		if (G.debug & G_DEBUG)
+			printf("Error: Current context doesn't allow for any Annotation data\n");
+		return 0;
+	}
+	else {
+		/* if no existing GPencil block exists, add one */
+		if (*gpd_ptr == NULL) {
+			bGPdata *gpd = BKE_gpencil_data_addnew(bmain, "Annotations");
+			*gpd_ptr = gpd;
+
+			/* mark datablock as being used for annotations */
+			gpd->flag |= GP_DATA_ANNOTATIONS;
+
+			/* annotations always in front of all objects */
+			gpd->xray_mode = GP_XRAY_FRONT;
+		}
+		p->gpd = *gpd_ptr;
+	}
+
+	if (ED_gpencil_session_active() == 0) {
+		/* initialize undo stack,
+		 * also, existing undo stack would make buffer drawn
+		 */
+		gpencil_undo_init(p->gpd);
+	}
+
+	/* clear out buffer (stored in gp-data), in case something contaminated it */
+	gp_session_validatebuffer(p);
+
+	/* lock axis */
+	p->lock_axis = ts->gp_sculpt.lock_axis;
+
+	return 1;
+}
+
+/* init new painting session */
+static tGPsdata *gp_session_initpaint(bContext *C)
+{
+	tGPsdata *p = NULL;
+
+	/* create new context data */
+	p = MEM_callocN(sizeof(tGPsdata), "Annotation Drawing Data");
+
+	/* Try to initialise context data
+	 * WARNING: This may not always succeed (e.g. using GP in an annotation-only context)
+	 */
+	if (gp_session_initdata(C, p) == 0) {
+		/* Invalid state - Exit
+		 * NOTE: It should be safe to just free the data, since failing context checks should
+		 * only happen when no data has been allocated.
+		 */
+		MEM_freeN(p);
+		return NULL;
+	}
+
+	/* Radius for eraser circle is defined in userprefs */
+	/* NOTE: we do this here, so that if we exit immediately,
+	 *       erase size won't get lost
+	 */
+	p->radius = U.gp_eraser;
+
+	/* return context data for running paint operator */
+	return p;
+}
+
+/* cleanup after a painting session */
+static void gp_session_cleanup(tGPsdata *p)
+{
+	bGPdata *gpd = (p) ? p->gpd : NULL;
+
+	/* error checking */
+	if (gpd == NULL)
+		return;
+
+	/* free stroke buffer */
+	if (gpd->runtime.sbuffer) {
+		/* printf("\t\tGP - free sbuffer\n"); */
+		MEM_freeN(gpd->runtime.sbuffer);
+		gpd->runtime.sbuffer = NULL;
+	}
+
+	/* clear flags */
+	gpd->runtime.sbuffer_size = 0;
+	gpd->runtime.sbuffer_sflag = 0;
+	p->inittime = 0.0;
+}
+
+static void gp_session_free(tGPsdata *p)
+{
+	MEM_freeN(p);
+}
+
+
+/* init new stroke */
+static void gp_paint_initstroke(tGPsdata *p, eGPencil_PaintModes paintmode, Depsgraph *depsgraph)
+{
+	Scene *scene = p->scene;
+	ToolSettings *ts = scene->toolsettings;
+
+	/* get active layer (or add a new one if non-existent) */
+	p->gpl = BKE_gpencil_layer_getactive(p->gpd);
+	if (p->gpl == NULL) {
+		p->gpl = BKE_gpencil_layer_addnew(p->gpd, DATA_("Note"), true);
+
+		if (p->custom_color[3])
+			copy_v3_v3(p->gpl->color, p->custom_color);
+	}
+	if (p->gpl->flag & GP_LAYER_LOCKED) {
+		p->status = GP_STATUS_ERROR;
+		if (G.debug & G_DEBUG)
+			printf("Error: Cannot paint on locked layer\n");
+		return;
+	}
+
+	/* get active frame (add a new one if not matching frame) */
+	if (paintmode == GP_PAINTMODE_ERASER) {
+		/* Eraser mode:
+		 * 1) Only allow erasing on the active layer (unlike for 3d-art Grease Pencil),
+		 *    since we won't be exposing layer locking in the UI
+		 * 2) Ensure that p->gpf refers to the frame used for the active layer
+		 *    (to avoid problems with other tools which expect it to exist)
+		 */
+		bool has_layer_to_erase = false;
+
+		if (gpencil_layer_is_editable(p->gpl)) {
+			/* Ensure that there's stuff to erase here (not including selection mask below)... */
+			if (p->gpl->actframe && p->gpl->actframe->strokes.first) {
+				has_layer_to_erase = true;
+			}
+		}
+
+		/* Ensure active frame is set correctly... */
+		p->gpf = p->gpl->actframe;
+
+		/* Restrict eraser to only affecting selected strokes, if the "selection mask" is on
+		 * (though this is only available in editmode)
+		 */
+		if (p->gpd->flag & GP_DATA_STROKE_EDITMODE) {
+			if (ts->gp_sculpt.flag & GP_BRUSHEDIT_FLAG_SELECT_MASK) {
+				p->flags |= GP_PAINTFLAG_SELECTMASK;
+			}
+		}
+
+		if (has_layer_to_erase == false) {
+			p->status = GP_STATUS_ERROR;
+			//if (G.debug & G_DEBUG)
+				printf("Error: Eraser will not be affecting anything (gpencil_paint_init)\n");
+			return;
+		}
+	}
+	else {
+		/* Drawing Modes - Add a new frame if needed on the active layer */
+		short add_frame_mode = GP_GETFRAME_ADD_NEW;
+
+		if (ts->gpencil_flags & GP_TOOL_FLAG_RETAIN_LAST)
+			add_frame_mode = GP_GETFRAME_ADD_COPY;
+		else
+			add_frame_mode = GP_GETFRAME_ADD_NEW;
+
+		p->gpf = BKE_gpencil_layer_getframe(p->gpl, CFRA, add_frame_mode);
+
+		if (p->gpf == NULL) {
+			p->status = GP_STATUS_ERROR;
+			if (G.debug & G_DEBUG)
+				printf("Error: No frame created (gpencil_paint_init)\n");
+			return;
+		}
+		else {
+			p->gpf->flag |= GP_FRAME_PAINT;
+		}
+	}
+
+	/* set 'eraser' for this stroke if using eraser */
+	p->paintmode = paintmode;
+	if (p->paintmode == GP_PAINTMODE_ERASER) {
+		p->gpd->runtime.sbuffer_sflag |= GP_STROKE_ERASER;
+
+		/* check if we should respect depth while erasing */
+		if (p->sa->spacetype == SPACE_VIEW3D) {
+			if (p->gpl->flag & GP_LAYER_NO_XRAY) {
+				p->flags |= GP_PAINTFLAG_V3D_ERASER_DEPTH;
+			}
+		}
+	}
+	else {
+		/* disable eraser flags - so that we can switch modes during a session */
+		p->gpd->runtime.sbuffer_sflag &= ~GP_STROKE_ERASER;
+
+		if (p->sa->spacetype == SPACE_VIEW3D) {
+			if (p->gpl->flag & GP_LAYER_NO_XRAY) {
+				p->flags &= ~GP_PAINTFLAG_V3D_ERASER_DEPTH;
+			}
+		}
+	}
+
+	/* set 'initial run' flag, which is only used to denote when a new stroke is starting */
+	p->flags |= GP_PAINTFLAG_FIRSTRUN;
+
+
+	/* when drawing in the camera view, in 2D space, set the subrect */
+	p->subrect = NULL;
+	if ((*p->align_flag & GP_PROJECT_VIEWSPACE) == 0) {
+		if (p->sa->spacetype == SPACE_VIEW3D) {
+			View3D *v3d = p->sa->spacedata.first;
+			RegionView3D *rv3d = p->ar->regiondata;
+
+			/* for camera view set the subrect */
+			if (rv3d->persp == RV3D_CAMOB) {
+				ED_view3d_calc_camera_border(p->scene, depsgraph, p->ar, v3d, rv3d, &p->subrect_data, true); /* no shift */
+				p->subrect = &p->subrect_data;
+			}
+		}
+	}
+
+	/* init stroke point space-conversion settings... */
+	p->gsc.gpd = p->gpd;
+	p->gsc.gpl = p->gpl;
+
+	p->gsc.sa = p->sa;
+	p->gsc.ar = p->ar;
+	p->gsc.v2d = p->v2d;
+
+	p->gsc.subrect_data = p->subrect_data;
+	p->gsc.subrect = p->subrect;
+
+	copy_m4_m4(p->gsc.mat, p->mat);
+
+
+	/* check if points will need to be made in view-aligned space */
+	if (*p->align_flag & GP_PROJECT_VIEWSPACE) {
+		switch (p->sa->spacetype) {
+			case SPACE_VIEW3D:
+			{
+				p->gpd->runtime.sbuffer_sflag |= GP_STROKE_3DSPACE;
+				break;
+			}
+			case SPACE_NODE:
+			{
+				p->gpd->runtime.sbuffer_sflag |= GP_STROKE_2DSPACE;
+				break;
+			}
+			case SPACE_SEQ:
+			{
+				p->gpd->runtime.sbuffer_sflag |= GP_STROKE_2DSPACE;
+				break;
+			}
+			case SPACE_IMAGE:
+			{
+				SpaceImage *sima = (SpaceImage *)p->sa->spacedata.first;
+
+				/* only set these flags if the image editor doesn't have an image active,
+				 * otherwise user will be confused by strokes not appearing after they're drawn
+				 *
+				 * Admittedly, this is a bit hacky, but it works much nicer from an ergonomic standpoint!
+				 */
+				if (ELEM(NULL, sima, sima->image)) {
+					/* make strokes be drawn in screen space */
+					p->gpd->runtime.sbuffer_sflag &= ~GP_STROKE_2DSPACE;
+					*(p->align_flag) &= ~GP_PROJECT_VIEWSPACE;
+				}
+				else {
+					p->gpd->runtime.sbuffer_sflag |= GP_STROKE_2DSPACE;
+				}
+				break;
+			}
+			case SPACE_CLIP:
+			{
+				p->gpd->runtime.sbuffer_sflag |= GP_STROKE_2DSPACE;
+				break;
+			}
+		}
+	}
+}
+
+/* finish off a stroke (clears buffer, but doesn't finish the paint operation) */
+static void gp_paint_strokeend(tGPsdata *p)
+{
+	ToolSettings *ts = p->scene->toolsettings;
+	/* for surface sketching, need to set the right OpenGL context stuff so that
+	 * the conversions will project the values correctly...
+	 */
+	if (gpencil_project_check(p)) {
+		View3D *v3d = p->sa->spacedata.first;
+
+		/* need to restore the original projection settings before packing up */
+		view3d_region_operator_needs_opengl(p->win, p->ar);
+		ED_view3d_autodist_init(p->depsgraph, p->ar, v3d, (ts->annotate_v3d_align & GP_PROJECT_DEPTH_STROKE) ? 1 : 0);
+	}
+
+	/* check if doing eraser or not */
+	if ((p->gpd->runtime.sbuffer_sflag & GP_STROKE_ERASER) == 0) {
+		/* simplify stroke before transferring? */
+		gp_stroke_simplify(p);
+
+		/* transfer stroke to frame */
+		gp_stroke_newfrombuffer(p);
+	}
+
+	/* clean up buffer now */
+	gp_session_validatebuffer(p);
+}
+
+/* finish off stroke painting operation */
+static void gp_paint_cleanup(tGPsdata *p)
+{
+	/* p->gpd==NULL happens when stroke failed to initialize,
+	 * for example when GP is hidden in current space (sergey)
+	 */
+	if (p->gpd) {
+		/* finish off a stroke */
+		gp_paint_strokeend(p);
+	}
+
+	/* "unlock" frame */
+	if (p->gpf)
+		p->gpf->flag &= ~GP_FRAME_PAINT;
+}
+
+/* ------------------------------- */
+
+/* Helper callback for drawing the cursor itself */
+static void gpencil_draw_eraser(bContext *UNUSED(C), int x, int y, void *p_ptr)
+{
+	tGPsdata *p = (tGPsdata *)p_ptr;
+
+	if (p->paintmode == GP_PAINTMODE_ERASER) {
+		GPUVertFormat *format = immVertexFormat();
+		const uint shdr_pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
+		immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
+
+		GPU_line_smooth(true);
+		GPU_blend(true);
+		GPU_blend_set_func_separate(GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
+
+		immUniformColor4ub(255, 100, 100, 20);
+		imm_draw_circle_fill_2d(shdr_pos, x, y, p->radius, 40);
+
+		immUnbindProgram();
+
+		immBindBuiltinProgram(GPU_SHADER_2D_LINE_DASHED_UNIFORM_COLOR);
+
+		float viewport_size[4];
+		GPU_viewport_size_get_f(viewport_size);
+		immUniform2f("viewport_size", viewport_size[2], viewport_size[3]);
+
+		immUniformColor4f(1.0f, 0.39f, 0.39f, 0.78f);
+		immUniform1i("colors_len", 0);  /* "simple" mode */
+		immUniform1f("dash_width", 12.0f);
+		immUniform1f("dash_factor", 0.5f);
+
+		imm_draw_circle_wire_2d(shdr_pos, x, y, p->radius,
+		                     /* XXX Dashed shader gives bad results with sets of small segments currently,
+		                      *     temp hack around the issue. :( */
+		                     max_ii(8, p->radius / 2));  /* was fixed 40 */
+
+		immUnbindProgram();
+
+		GPU_blend(false);
+		GPU_line_smooth(false);
+	}
+}
+
+/* Turn brush cursor in 3D view on/off */
+static void gpencil_draw_toggle_eraser_cursor(bContext *C, tGPsdata *p, short enable)
+{
+	if (p->erasercursor && !enable) {
+		/* clear cursor */
+		WM_paint_cursor_end(CTX_wm_manager(C), p->erasercursor);
+		p->erasercursor = NULL;
+	}
+	else if (enable && !p->erasercursor) {
+		/* enable cursor */
+		p->erasercursor = WM_paint_cursor_activate(CTX_wm_manager(C),
+		                                           NULL, /* XXX */
+		                                           gpencil_draw_eraser, p);
+	}
+}
+
+/* Check if tablet eraser is being used (when processing events) */
+static bool gpencil_is_tablet_eraser_active(const wmEvent *event)
+{
+	if (event->tablet_data) {
+		const wmTabletData *wmtab = event->tablet_data;
+		return (wmtab->Active == EVT_TABLET_ERASER);
+	}
+
+	return false;
+}
+
+/* ------------------------------- */
+
+static void gpencil_draw_exit(bContext *C, wmOperator *op)
+{
+	tGPsdata *p = op->customdata;
+
+	/* restore cursor to indicate end of drawing */
+	WM_cursor_modal_restore(CTX_wm_window(C));
+
+	/* don't assume that operator data exists at all */
+	if (p) {
+		/* check size of buffer before cleanup, to determine if anything happened here */
+		if (p->paintmode == GP_PAINTMODE_ERASER) {
+			/* turn off radial brush cursor */
+			gpencil_draw_toggle_eraser_cursor(C, p, false);
+		}
+
+		/* always store the new eraser size to be used again next time
+		 * NOTE: Do this even when not in eraser mode, as eraser may
+		 *       have been toggled at some point.
+		 */
+		U.gp_eraser = p->radius;
+
+		/* clear undo stack */
+		gpencil_undo_finish();
+
+		/* cleanup */
+		gp_paint_cleanup(p);
+		gp_session_cleanup(p);
+		gp_session_free(p);
+		p = NULL;
+	}
+
+	op->customdata = NULL;
+}
+
+static void gpencil_draw_cancel(bContext *C, wmOperator *op)
+{
+	/* this is just a wrapper around exit() */
+	gpencil_draw_exit(C, op);
+}
+
+/* ------------------------------- */
+
+
+static int gpencil_draw_init(bContext *C, wmOperator *op, const wmEvent *event)
+{
+	tGPsdata *p;
+	eGPencil_PaintModes paintmode = RNA_enum_get(op->ptr, "mode");
+
+	/* check context */
+	p = op->customdata = gp_session_initpaint(C);
+	if ((p == NULL) || (p->status == GP_STATUS_ERROR)) {
+		/* something wasn't set correctly in context */
+		gpencil_draw_exit(C, op);
+		return 0;
+	}
+
+	/* init painting data */
+	gp_paint_initstroke(p, paintmode, CTX_data_depsgraph(C));
+	if (p->status == GP_STATUS_ERROR) {
+		gpencil_draw_exit(C, op);
+		return 0;
+	}
+
+	if (event != NULL) {
+		p->keymodifier = event->keymodifier;
+	}
+	else {
+		p->keymodifier = -1;
+	}
+
+	/* everything is now setup ok */
+	return 1;
+}
+
+
+/* ------------------------------- */
+
+/* ensure that the correct cursor icon is set */
+static void gpencil_draw_cursor_set(tGPsdata *p)
+{
+	if (p->paintmode == GP_PAINTMODE_ERASER)
+		WM_cursor_modal_set(p->win, BC_CROSSCURSOR);  /* XXX need a better cursor */
+	else
+		WM_cursor_modal_set(p->win, BC_PAINTBRUSHCURSOR);
+}
+
+/* update UI indicators of status, including cursor and header prints */
+static void gpencil_draw_status_indicators(bContext *C, tGPsdata *p)
+{
+	/* header prints */
+	switch (p->status) {
+		case GP_STATUS_PAINTING:
+			switch (p->paintmode) {
+				case GP_PAINTMODE_DRAW_POLY:
+					/* Provide usage tips, since this is modal, and unintuitive without hints */
+					ED_workspace_status_text(C, IFACE_("Annotation Create Poly: LMB click to place next stroke vertex | "
+					                                  "ESC/Enter to end  (or click outside this area)"));
+					break;
+				default:
+					/* Do nothing - the others are self explanatory, exit quickly once the mouse is released
+					 * Showing any text would just be annoying as it would flicker.
+					 */
+					break;
+			}
+			break;
+
+		case GP_STATUS_IDLING:
+			/* print status info */
+			switch (p->paintmode) {
+				case GP_PAINTMODE_ERASER:
+					ED_workspace_status_text(C, IFACE_("Annotation Eraser: Hold and drag LMB or RMB to erase | "
+					                                  "ESC/Enter to end  (or click outside this area)"));
+					break;
+				case GP_PAINTMODE_DRAW_STRAIGHT:
+					ED_workspace_status_text(C, IFACE_("Annotation Line Draw: Hold and drag LMB to draw | "
+					                                  "ESC/Enter to end  (or click outside this area)"));
+					break;
+				case GP_PAINTMODE_DRAW:
+					ED_workspace_status_text(C, IFACE_("Annotation Freehand Draw: Hold and drag LMB to draw | "
+					                                  "E/ESC/Enter to end  (or click outside this area)"));
+					break;
+				case GP_PAINTMODE_DRAW_POLY:
+					ED_workspace_status_text(C, IFACE_("Annotation Create Poly: LMB click to place next stroke vertex | "
+					                                  "ESC/Enter to end  (or click outside this area)"));
+					break;
+
+				default: /* unhandled future cases */
+					ED_workspace_status_text(C, IFACE_("Annotation Session: ESC/Enter to end   (or click outside this area)"));
+					break;
+			}
+			break;
+
+		case GP_STATUS_ERROR:
+		case GP_STATUS_DONE:
+			/* clear status string */
+			ED_workspace_status_text(C, NULL);
+			break;
+	}
+}
+
+/* ------------------------------- */
+
+/* create a new stroke point at the point indicated by the painting context */
+static void gpencil_draw_apply(wmOperator *op, tGPsdata *p, Depsgraph *depsgraph)
+{
+	/* handle drawing/erasing -> test for erasing first */
+	if (p->paintmode == GP_PAINTMODE_ERASER) {
+		/* do 'live' erasing now */
+		gp_stroke_doeraser(p);
+
+		/* store used values */
+		p->mvalo[0] = p->mval[0];
+		p->mvalo[1] = p->mval[1];
+		p->opressure = p->pressure;
+	}
+	/* only add current point to buffer if mouse moved (even though we got an event, it might be just noise) */
+	else if (gp_stroke_filtermval(p, p->mval, p->mvalo)) {
+		/* try to add point */
+		short ok = gp_stroke_addpoint(p, p->mval, p->pressure, p->curtime);
+
+		/* handle errors while adding point */
+		if ((ok == GP_STROKEADD_FULL) || (ok == GP_STROKEADD_OVERFLOW)) {
+			/* finish off old stroke */
+			gp_paint_strokeend(p);
+			/* And start a new one!!! Else, projection errors! */
+			gp_paint_initstroke(p, p->paintmode, depsgraph);
+
+			/* start a new stroke, starting from previous point */
+			/* XXX Must manually reset inittime... */
+			/* XXX We only need to reuse previous point if overflow! */
+			if (ok == GP_STROKEADD_OVERFLOW) {
+				p->inittime = p->ocurtime;
+				gp_stroke_addpoint(p, p->mvalo, p->opressure, p->ocurtime);
+			}
+			else {
+				p->inittime = p->curtime;
+			}
+			gp_stroke_addpoint(p, p->mval, p->pressure, p->curtime);
+		}
+		else if (ok == GP_STROKEADD_INVALID) {
+			/* the painting operation cannot continue... */
+			BKE_report(op->reports, RPT_ERROR, "Cannot paint stroke");
+			p->status = GP_STATUS_ERROR;
+
+			if (G.debug & G_DEBUG)
+				printf("Error: Grease-Pencil Paint - Add Point Invalid\n");
+			return;
+		}
+
+		/* store used values */
+		p->mvalo[0] = p->mval[0];
+		p->mvalo[1] = p->mval[1];
+		p->opressure = p->pressure;
+		p->ocurtime = p->curtime;
+	}
+}
+
+/* handle draw event */
+static void gpencil_draw_apply_event(wmOperator *op, const wmEvent *event, Depsgraph *depsgraph)
+{
+	tGPsdata *p = op->customdata;
+	PointerRNA itemptr;
+	float mousef[2];
+	int tablet = 0;
+
+	/* convert from window-space to area-space mouse coordinates
+	 * NOTE: float to ints conversions, +1 factor is probably used to ensure a bit more accurate rounding...
+	 */
+	p->mval[0] = event->mval[0] + 1;
+	p->mval[1] = event->mval[1] + 1;
+
+	/* verify key status for straight lines */
+	if ((event->ctrl > 0) || (event->alt > 0)) {
+		if (p->straight[0] == 0) {
+			int dx = abs(p->mval[0] - p->mvalo[0]);
+			int dy = abs(p->mval[1] - p->mvalo[1]);
+			if ((dx > 0) || (dy > 0)) {
+				/* check mouse direction to replace the other coordinate with previous values */
+				if (dx >= dy) {
+					/* horizontal */
+					p->straight[0] = 1;
+					p->straight[1] = p->mval[1]; /* save y */
+				}
+				else {
+					/* vertical */
+					p->straight[0] = 2;
+					p->straight[1] = p->mval[0]; /* save x */
+				}
+			}
+		}
+	}
+	else {
+		p->straight[0] = 0;
+	}
+
+	p->curtime = PIL_check_seconds_timer();
+
+	/* handle pressure sensitivity (which is supplied by tablets) */
+	if (event->tablet_data) {
+		const wmTabletData *wmtab = event->tablet_data;
+
+		tablet = (wmtab->Active != EVT_TABLET_NONE);
+		p->pressure = wmtab->Pressure;
+
+		/* Hack for pressure sensitive eraser on D+RMB when using a tablet:
+		 *  The pen has to float over the tablet surface, resulting in
+		 *  zero pressure (T47101). Ignore pressure values if floating
+		 *  (i.e. "effectively zero" pressure), and only when the "active"
+		 *  end is the stylus (i.e. the default when not eraser)
+		 */
+		if (p->paintmode == GP_PAINTMODE_ERASER) {
+			if ((wmtab->Active != EVT_TABLET_ERASER) && (p->pressure < 0.001f)) {
+				p->pressure = 1.0f;
+			}
+		}
+	}
+	else {
+		/* No tablet data -> No pressure info is available */
+		p->pressure = 1.0f;
+	}
+
+	/* special exception for start of strokes (i.e. maybe for just a dot) */
+	if (p->flags & GP_PAINTFLAG_FIRSTRUN) {
+		p->flags &= ~GP_PAINTFLAG_FIRSTRUN;
+
+		p->mvalo[0] = p->mval[0];
+		p->mvalo[1] = p->mval[1];
+		p->opressure = p->pressure;
+		p->inittime = p->ocurtime = p->curtime;
+		p->straight[0] = 0;
+		p->straight[1] = 0;
+
+		/* special exception here for too high pressure values on first touch in
+		 *  windows for some tablets, then we just skip first touch...
+		 */
+		if (tablet && (p->pressure >= 0.99f))
+			return;
+	}
+
+	/* check if alt key is pressed and limit to straight lines */
+	if (p->straight[0] != 0) {
+		if (p->straight[0] == 1) {
+			/* horizontal */
+			p->mval[1] = p->straight[1]; /* replace y */
+		}
+		else {
+			/* vertical */
+			p->mval[0] = p->straight[1]; /* replace x */
+		}
+	}
+
+	/* fill in stroke data (not actually used directly by gpencil_draw_apply) */
+	RNA_collection_add(op->ptr, "stroke", &itemptr);
+
+	mousef[0] = p->mval[0];
+	mousef[1] = p->mval[1];
+	RNA_float_set_array(&itemptr, "mouse", mousef);
+	RNA_float_set(&itemptr, "pressure", p->pressure);
+	RNA_boolean_set(&itemptr, "is_start", (p->flags & GP_PAINTFLAG_FIRSTRUN) != 0);
+
+	RNA_float_set(&itemptr, "time", p->curtime - p->inittime);
+
+	/* apply the current latest drawing point */
+	gpencil_draw_apply(op, p, depsgraph);
+
+	/* force refresh */
+	ED_region_tag_redraw(p->ar); /* just active area for now, since doing whole screen is too slow */
+}
+
+/* ------------------------------- */
+
+/* operator 'redo' (i.e. after changing some properties, but also for repeat last) */
+static int gpencil_draw_exec(bContext *C, wmOperator *op)
+{
+	tGPsdata *p = NULL;
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+
+	/* printf("GPencil - Starting Re-Drawing\n"); */
+
+	/* try to initialize context data needed while drawing */
+	if (!gpencil_draw_init(C, op, NULL)) {
+		if (op->customdata) MEM_freeN(op->customdata);
+		/* printf("\tGP - no valid data\n"); */
+		return OPERATOR_CANCELLED;
+	}
+	else
+		p = op->customdata;
+
+	/* printf("\tGP - Start redrawing stroke\n"); */
+
+	/* loop over the stroke RNA elements recorded (i.e. progress of mouse movement),
+	 * setting the relevant values in context at each step, then applying
+	 */
+	RNA_BEGIN (op->ptr, itemptr, "stroke")
+	{
+		float mousef[2];
+
+		/* printf("\t\tGP - stroke elem\n"); */
+
+		/* get relevant data for this point from stroke */
+		RNA_float_get_array(&itemptr, "mouse", mousef);
+		p->mval[0] = (int)mousef[0];
+		p->mval[1] = (int)mousef[1];
+		p->pressure = RNA_float_get(&itemptr, "pressure");
+		p->curtime = (double)RNA_float_get(&itemptr, "time") + p->inittime;
+
+		if (RNA_boolean_get(&itemptr, "is_start")) {
+			/* if first-run flag isn't set already (i.e. not true first stroke),
+			 * then we must terminate the previous one first before continuing
+			 */
+			if ((p->flags & GP_PAINTFLAG_FIRSTRUN) == 0) {
+				/* TODO: both of these ops can set error-status, but we probably don't need to worry */
+				gp_paint_strokeend(p);
+				gp_paint_initstroke(p, p->paintmode, depsgraph);
+			}
+		}
+
+		/* if first run, set previous data too */
+		if (p->flags & GP_PAINTFLAG_FIRSTRUN) {
+			p->flags &= ~GP_PAINTFLAG_FIRSTRUN;
+
+			p->mvalo[0] = p->mval[0];
+			p->mvalo[1] = p->mval[1];
+			p->opressure = p->pressure;
+			p->ocurtime = p->curtime;
+		}
+
+		/* apply this data as necessary now (as per usual) */
+		gpencil_draw_apply(op, p, depsgraph);
+	}
+	RNA_END;
+
+	/* printf("\tGP - done\n"); */
+
+	/* cleanup */
+	gpencil_draw_exit(C, op);
+
+	/* refreshes */
+	WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
+
+	/* done */
+	return OPERATOR_FINISHED;
+}
+
+/* ------------------------------- */
+
+/* start of interactive drawing part of operator */
+static int gpencil_draw_invoke(bContext *C, wmOperator *op, const wmEvent *event)
+{
+	Object *ob = CTX_data_active_object(C);
+	tGPsdata *p = NULL;
+
+	/* GPXX Need a better solution */
+	if ((ob != NULL) && (ob->type == OB_GPENCIL)) {
+		BKE_report(op->reports, RPT_ERROR, "Cannot draw annotation with a Grease Pencil object active");
+		return OPERATOR_CANCELLED;
+	}
+
+	if (G.debug & G_DEBUG)
+		printf("GPencil - Starting Drawing\n");
+
+	/* try to initialize context data needed while drawing */
+	if (!gpencil_draw_init(C, op, event)) {
+		if (op->customdata)
+			MEM_freeN(op->customdata);
+		if (G.debug & G_DEBUG)
+			printf("\tGP - no valid data\n");
+		return OPERATOR_CANCELLED;
+	}
+	else
+		p = op->customdata;
+
+	/* TODO: set any additional settings that we can take from the events?
+	 * TODO? if tablet is erasing, force eraser to be on? */
+
+	/* TODO: move cursor setting stuff to stroke-start so that paintmode can be changed midway... */
+
+	/* if eraser is on, draw radial aid */
+	if (p->paintmode == GP_PAINTMODE_ERASER) {
+		gpencil_draw_toggle_eraser_cursor(C, p, true);
+	}
+	/* set cursor
+	 * NOTE: This may change later (i.e. intentionally via brush toggle,
+	 *       or unintentionally if the user scrolls outside the area)...
+	 */
+	gpencil_draw_cursor_set(p);
+
+	/* only start drawing immediately if we're allowed to do so... */
+	if (RNA_boolean_get(op->ptr, "wait_for_input") == false) {
+		/* hotkey invoked - start drawing */
+		/* printf("\tGP - set first spot\n"); */
+		p->status = GP_STATUS_PAINTING;
+
+		/* handle the initial drawing - i.e. for just doing a simple dot */
+		gpencil_draw_apply_event(op, event, CTX_data_depsgraph(C));
+		op->flag |= OP_IS_MODAL_CURSOR_REGION;
+	}
+	else {
+		/* toolbar invoked - don't start drawing yet... */
+		/* printf("\tGP - hotkey invoked... waiting for click-drag\n"); */
+		op->flag |= OP_IS_MODAL_CURSOR_REGION;
+	}
+
+	WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
+	/* add a modal handler for this operator, so that we can then draw continuous strokes */
+	WM_event_add_modal_handler(C, op);
+	return OPERATOR_RUNNING_MODAL;
+}
+
+/* gpencil modal operator stores area, which can be removed while using it (like fullscreen) */
+static bool gpencil_area_exists(bContext *C, ScrArea *sa_test)
+{
+	bScreen *sc = CTX_wm_screen(C);
+	return (BLI_findindex(&sc->areabase, sa_test) != -1);
+}
+
+static tGPsdata *gpencil_stroke_begin(bContext *C, wmOperator *op)
+{
+	tGPsdata *p = op->customdata;
+
+	/* we must check that we're still within the area that we're set up to work from
+	 * otherwise we could crash (see bug #20586)
+	 */
+	if (CTX_wm_area(C) != p->sa) {
+		printf("\t\t\tGP - wrong area execution abort!\n");
+		p->status = GP_STATUS_ERROR;
+	}
+
+	/* printf("\t\tGP - start stroke\n"); */
+
+	/* we may need to set up paint env again if we're resuming */
+	/* XXX: watch it with the paintmode! in future,
+	 *      it'd be nice to allow changing paint-mode when in sketching-sessions */
+
+	if (gp_session_initdata(C, p))
+		gp_paint_initstroke(p, p->paintmode, CTX_data_depsgraph(C));
+
+	if (p->status != GP_STATUS_ERROR) {
+		p->status = GP_STATUS_PAINTING;
+		op->flag &= ~OP_IS_MODAL_CURSOR_REGION;
+	}
+
+	return op->customdata;
+}
+
+static void gpencil_stroke_end(wmOperator *op)
+{
+	tGPsdata *p = op->customdata;
+
+	gp_paint_cleanup(p);
+
+	gpencil_undo_push(p->gpd);
+
+	gp_session_cleanup(p);
+
+	p->status = GP_STATUS_IDLING;
+	op->flag |= OP_IS_MODAL_CURSOR_REGION;
+
+	p->gpd = NULL;
+	p->gpl = NULL;
+	p->gpf = NULL;
+}
+
+/* events handling during interactive drawing part of operator */
+static int gpencil_draw_modal(bContext *C, wmOperator *op, const wmEvent *event)
+{
+	tGPsdata *p = op->customdata;
+	int estate = OPERATOR_PASS_THROUGH; /* default exit state - pass through to support MMB view nav, etc. */
+
+	/* if (event->type == NDOF_MOTION)
+	 *    return OPERATOR_PASS_THROUGH;
+	 * -------------------------------
+	 * [mce] Not quite what I was looking
+	 * for, but a good start! GP continues to
+	 * draw on the screen while the 3D mouse
+	 * moves the viewpoint. Problem is that
+	 * the stroke is converted to 3D only after
+	 * it is finished. This approach should work
+	 * better in tools that immediately apply
+	 * in 3D space.
+	 */
+
+	if (p->status == GP_STATUS_IDLING) {
+		ARegion *ar = CTX_wm_region(C);
+		p->ar = ar;
+	}
+
+	/* we don't pass on key events, GP is used with key-modifiers - prevents Dkey to insert drivers */
+	if (ISKEYBOARD(event->type)) {
+		if (ELEM(event->type, LEFTARROWKEY, DOWNARROWKEY, RIGHTARROWKEY, UPARROWKEY, ZKEY)) {
+			/* allow some keys:
+			 *   - for frame changing [#33412]
+			 *   - for undo (during sketching sessions)
+			 */
+		}
+		else if (ELEM(event->type, PAD0, PAD1, PAD2, PAD3, PAD4, PAD5, PAD6, PAD7, PAD8, PAD9)) {
+			/* allow numpad keys so that camera/view manipulations can still take place
+			 * - PAD0 in particular is really important for Grease Pencil drawing,
+			 *   as animators may be working "to camera", so having this working
+			 *   is essential for ensuring that they can quickly return to that view
+			 */
+		}
+		else if ((event->type == BKEY) && (event->val == KM_RELEASE)) {
+			/* Add Blank Frame
+			 * - Since this operator is non-modal, we can just call it here, and keep going...
+			 * - This operator is especially useful when animating
+			 */
+			WM_operator_name_call(C, "GPENCIL_OT_blank_frame_add", WM_OP_EXEC_DEFAULT, NULL);
+			estate = OPERATOR_RUNNING_MODAL;
+		}
+		else {
+			estate = OPERATOR_RUNNING_MODAL;
+		}
+	}
+
+	//printf("\tGP - handle modal event...\n");
+
+	/* exit painting mode (and/or end current stroke)
+	 * NOTE: cannot do RIGHTMOUSE (as is standard for canceling) as that would break polyline [#32647]
+	 */
+	if (ELEM(event->type, RETKEY, PADENTER, ESCKEY, SPACEKEY, EKEY)) {
+		/* exit() ends the current stroke before cleaning up */
+		/* printf("\t\tGP - end of paint op + end of stroke\n"); */
+		p->status = GP_STATUS_DONE;
+		estate = OPERATOR_FINISHED;
+	}
+
+	/* toggle painting mode upon mouse-button movement
+	 *  - LEFTMOUSE  = standard drawing (all) / straight line drawing (all) / polyline (toolbox only)
+	 *  - RIGHTMOUSE = polyline (hotkey) / eraser (all)
+	 *    (Disabling RIGHTMOUSE case here results in bugs like [#32647])
+	 * also making sure we have a valid event value, to not exit too early
+	 */
+	if (ELEM(event->type, LEFTMOUSE, RIGHTMOUSE) && (ELEM(event->val, KM_PRESS, KM_RELEASE))) {
+		/* if painting, end stroke */
+		if (p->status == GP_STATUS_PAINTING) {
+			int sketch = 0;
+
+			/* basically, this should be mouse-button up = end stroke
+			 * BUT, polyline drawing is an exception -- all knots should be added during one session
+			 */
+			sketch |= (p->paintmode == GP_PAINTMODE_DRAW_POLY);
+
+			if (sketch) {
+				/* end stroke only, and then wait to resume painting soon */
+				/* printf("\t\tGP - end stroke only\n"); */
+				gpencil_stroke_end(op);
+
+				/* If eraser mode is on, turn it off after the stroke finishes
+				 * NOTE: This just makes it nicer to work with drawing sessions
+				 */
+				if (p->paintmode == GP_PAINTMODE_ERASER) {
+					p->paintmode = RNA_enum_get(op->ptr, "mode");
+
+					/* if the original mode was *still* eraser,
+					 * we'll let it say for now, since this gives
+					 * users an opportunity to have visual feedback
+					 * when adjusting eraser size
+					 */
+					if (p->paintmode != GP_PAINTMODE_ERASER) {
+						/* turn off cursor...
+						 * NOTE: this should be enough for now
+						 *       Just hiding this makes it seem like
+						 *       you can paint again...
+						 */
+						gpencil_draw_toggle_eraser_cursor(C, p, false);
+					}
+				}
+
+				/* we've just entered idling state, so this event was processed (but no others yet) */
+				estate = OPERATOR_RUNNING_MODAL;
+
+				/* stroke could be smoothed, send notifier to refresh screen */
+				WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
+			}
+			else {
+				/* printf("\t\tGP - end of stroke + op\n"); */
+				p->status = GP_STATUS_DONE;
+				estate = OPERATOR_FINISHED;
+			}
+		}
+		else if (event->val == KM_PRESS) {
+			bool in_bounds = false;
+
+			/* Check if we're outside the bounds of the active region
+			 * NOTE: An exception here is that if launched from the toolbar,
+			 *       whatever region we're now in should become the new region
+			 */
+			if ((p->ar) && (p->ar->regiontype == RGN_TYPE_TOOLS)) {
+				/* Change to whatever region is now under the mouse */
+				ARegion *current_region = BKE_area_find_region_xy(p->sa, RGN_TYPE_ANY, event->x, event->y);
+
+				if (G.debug & G_DEBUG) {
+					printf("found alternative region %p (old was %p) - at %d %d (sa: %d %d -> %d %d)\n",
+						current_region, p->ar, event->x, event->y,
+						p->sa->totrct.xmin, p->sa->totrct.ymin, p->sa->totrct.xmax, p->sa->totrct.ymax);
+				}
+
+				if (current_region) {
+					/* Assume that since we found the cursor in here, it is in bounds
+					 * and that this should be the region that we begin drawing in
+					 */
+					p->ar = current_region;
+					in_bounds = true;
+				}
+				else {
+					/* Out of bounds, or invalid in some other way */
+					p->status = GP_STATUS_ERROR;
+					estate = OPERATOR_CANCELLED;
+
+					if (G.debug & G_DEBUG)
+						printf("%s: Region under cursor is out of bounds, so cannot be drawn on\n", __func__);
+				}
+			}
+			else if (p->ar) {
+				rcti region_rect;
+
+				/* Perform bounds check using  */
+				ED_region_visible_rect(p->ar, &region_rect);
+				in_bounds = BLI_rcti_isect_pt_v(&region_rect, event->mval);
+			}
+			else {
+				/* No region */
+				p->status = GP_STATUS_ERROR;
+				estate = OPERATOR_CANCELLED;
+
+				if (G.debug & G_DEBUG)
+					printf("%s: No active region found in GP Paint session data\n", __func__);
+			}
+
+			if (in_bounds) {
+				/* Switch paintmode (temporarily if need be) based on which button was used
+				 * NOTE: This is to make it more convenient to erase strokes when using drawing sessions
+				 */
+				if ((event->type == RIGHTMOUSE) || gpencil_is_tablet_eraser_active(event)) {
+					/* turn on eraser */
+					p->paintmode = GP_PAINTMODE_ERASER;
+				}
+				else if (event->type == LEFTMOUSE) {
+					/* restore drawmode to default */
+					p->paintmode = RNA_enum_get(op->ptr, "mode");
+				}
+
+				gpencil_draw_toggle_eraser_cursor(C, p, p->paintmode == GP_PAINTMODE_ERASER);
+
+				/* not painting, so start stroke (this should be mouse-button down) */
+				p = gpencil_stroke_begin(C, op);
+
+				if (p->status == GP_STATUS_ERROR) {
+					estate = OPERATOR_CANCELLED;
+				}
+			}
+			else if (p->status != GP_STATUS_ERROR) {
+				/* User clicked outside bounds of window while idling, so exit paintmode
+				 * NOTE: Don't enter this case if an error occurred while finding the
+				 *       region (as above)
+				 */
+				p->status = GP_STATUS_DONE;
+				estate = OPERATOR_FINISHED;
+			}
+		}
+		else if (event->val == KM_RELEASE) {
+			p->status = GP_STATUS_IDLING;
+			op->flag |= OP_IS_MODAL_CURSOR_REGION;
+		}
+	}
+
+	/* handle mode-specific events */
+	if (p->status == GP_STATUS_PAINTING) {
+		/* handle painting mouse-movements? */
+		if (ELEM(event->type, MOUSEMOVE, INBETWEEN_MOUSEMOVE) || (p->flags & GP_PAINTFLAG_FIRSTRUN)) {
+			/* handle drawing event */
+			/* printf("\t\tGP - add point\n"); */
+			gpencil_draw_apply_event(op, event, CTX_data_depsgraph(C));
+
+			/* finish painting operation if anything went wrong just now */
+			if (p->status == GP_STATUS_ERROR) {
+				printf("\t\t\t\tGP - add error done!\n");
+				estate = OPERATOR_CANCELLED;
+			}
+			else {
+				/* event handled, so just tag as running modal */
+				/* printf("\t\t\t\tGP - add point handled!\n"); */
+				estate = OPERATOR_RUNNING_MODAL;
+			}
+		}
+		/* eraser size */
+		else if ((p->paintmode == GP_PAINTMODE_ERASER) &&
+		         ELEM(event->type, WHEELUPMOUSE, WHEELDOWNMOUSE, PADPLUSKEY, PADMINUS))
+		{
+			/* just resize the brush (local version)
+			 * TODO: fix the hardcoded size jumps (set to make a visible difference) and hardcoded keys
+			 */
+			/* printf("\t\tGP - resize eraser\n"); */
+			switch (event->type) {
+				case WHEELDOWNMOUSE: /* larger */
+				case PADPLUSKEY:
+					p->radius += 5;
+					break;
+
+				case WHEELUPMOUSE: /* smaller */
+				case PADMINUS:
+					p->radius -= 5;
+
+					if (p->radius <= 0)
+						p->radius = 1;
+					break;
+			}
+
+			/* force refresh */
+			ED_region_tag_redraw(p->ar); /* just active area for now, since doing whole screen is too slow */
+
+			/* event handled, so just tag as running modal */
+			estate = OPERATOR_RUNNING_MODAL;
+		}
+		/* there shouldn't be any other events, but just in case there are, let's swallow them
+		 * (i.e. to prevent problems with undo)
+		 */
+		else {
+			/* swallow event to save ourselves trouble */
+			estate = OPERATOR_RUNNING_MODAL;
+		}
+	}
+
+	/* gpencil modal operator stores area, which can be removed while using it (like fullscreen) */
+	if (0 == gpencil_area_exists(C, p->sa))
+		estate = OPERATOR_CANCELLED;
+	else {
+		/* update status indicators - cursor, header, etc. */
+		gpencil_draw_status_indicators(C, p);
+		gpencil_draw_cursor_set(p); /* cursor may have changed outside our control - T44084 */
+	}
+
+	/* process last operations before exiting */
+	switch (estate) {
+		case OPERATOR_FINISHED:
+			/* one last flush before we're done */
+			gpencil_draw_exit(C, op);
+			WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
+			break;
+
+		case OPERATOR_CANCELLED:
+			gpencil_draw_exit(C, op);
+			break;
+
+		case OPERATOR_RUNNING_MODAL | OPERATOR_PASS_THROUGH:
+			/* event doesn't need to be handled */
+#if 0
+			printf("unhandled event -> %d (mmb? = %d | mmv? = %d)\n",
+			       event->type, event->type == MIDDLEMOUSE, event->type==MOUSEMOVE);
+#endif
+			break;
+	}
+
+	/* return status code */
+	return estate;
+}
+
+/* ------------------------------- */
+
+static const EnumPropertyItem prop_gpencil_drawmodes[] = {
+	{GP_PAINTMODE_DRAW, "DRAW", 0, "Draw Freehand", "Draw freehand stroke(s)"},
+	{GP_PAINTMODE_DRAW_STRAIGHT, "DRAW_STRAIGHT", 0, "Draw Straight Lines", "Draw straight line segment(s)"},
+	{GP_PAINTMODE_DRAW_POLY, "DRAW_POLY", 0, "Draw Poly Line", "Click to place endpoints of straight line segments (connected)"},
+	{GP_PAINTMODE_ERASER, "ERASER", 0, "Eraser", "Erase Annotation strokes"},
+	{0, NULL, 0, NULL, NULL}
+};
+
+void GPENCIL_OT_annotate(wmOperatorType *ot)
+{
+	PropertyRNA *prop;
+
+	/* identifiers */
+	ot->name = "Annotation Draw";
+	ot->idname = "GPENCIL_OT_annotate";
+	ot->description = "Make annotations on the active data";
+
+	/* api callbacks */
+	ot->exec = gpencil_draw_exec;
+	ot->invoke = gpencil_draw_invoke;
+	ot->modal = gpencil_draw_modal;
+	ot->cancel = gpencil_draw_cancel;
+	ot->poll = gpencil_draw_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_UNDO | OPTYPE_BLOCKING;
+
+	/* settings for drawing */
+	ot->prop = RNA_def_enum(ot->srna, "mode", prop_gpencil_drawmodes, 0, "Mode", "Way to interpret mouse movements");
+
+	prop = RNA_def_collection_runtime(ot->srna, "stroke", &RNA_OperatorStrokeElement, "Stroke", "");
+	RNA_def_property_flag(prop, PROP_HIDDEN | PROP_SKIP_SAVE);
+
+	/* NOTE: wait for input is enabled by default, so that all UI code can work properly without needing users to know about this */
+	prop = RNA_def_boolean(ot->srna, "wait_for_input", true, "Wait for Input", "Wait for first click instead of painting immediately");
+	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
+}
diff --git a/source/blender/editors/gpencil/drawgpencil.c b/source/blender/editors/gpencil/drawgpencil.c
index ec4310213ef..180fb65e743 100644
--- a/source/blender/editors/gpencil/drawgpencil.c
+++ b/source/blender/editors/gpencil/drawgpencil.c
@@ -46,6 +46,7 @@
 #include "BLF_api.h"
 #include "BLT_translation.h"
 
+#include "DNA_brush_types.h"
 #include "DNA_gpencil_types.h"
 #include "DNA_scene_types.h"
 #include "DNA_screen_types.h"
@@ -55,8 +56,13 @@
 #include "DNA_object_types.h"
 
 #include "BKE_context.h"
+#include "BKE_brush.h"
 #include "BKE_global.h"
+#include "BKE_paint.h"
 #include "BKE_gpencil.h"
+#include "BKE_image.h"
+
+#include "DEG_depsgraph.h"
 
 #include "WM_api.h"
 
@@ -74,6 +80,10 @@
 #include "UI_interface_icons.h"
 #include "UI_resources.h"
 
+#include "IMB_imbuf_types.h"
+
+#include "gpencil_intern.h"
+
 /* ************************************************** */
 /* GREASE PENCIL DRAWING */
 
@@ -88,8 +98,7 @@ typedef enum eDrawStrokeFlags {
 	GP_DRAWDATA_NO_XRAY     = (1 << 5),   /* don't draw xray in 3D view (which is default) */
 	GP_DRAWDATA_NO_ONIONS   = (1 << 6),	  /* no onionskins should be drawn (for animation playback) */
 	GP_DRAWDATA_VOLUMETRIC	= (1 << 7),   /* draw strokes as "volumetric" circular billboards */
-	GP_DRAWDATA_FILL        = (1 << 8),   /* fill insides/bounded-regions of strokes */
-	GP_DRAWDATA_HQ_FILL     = (1 << 9)    /* Use high quality fill */
+	GP_DRAWDATA_FILL        = (1 << 8)    /* fill insides/bounded-regions of strokes */
 } eDrawStrokeFlags;
 
 
@@ -100,12 +109,12 @@ typedef enum eDrawStrokeFlags {
 #endif
 
 /* conversion utility (float --> normalized unsigned byte) */
-#define F2UB(x) (unsigned char)(255.0f * x)
+#define F2UB(x) (uchar)(255.0f * x)
 
 /* ----- Tool Buffer Drawing ------ */
 /* helper functions to set color of buffer point */
 
-static void gp_set_tpoint_varying_color(const tGPspoint *pt, const float ink[4], unsigned attrib_id)
+static void gp_set_tpoint_varying_color(const tGPspoint *pt, const float ink[4], uint attrib_id)
 {
 	float alpha = ink[3] * pt->strength;
 	CLAMP(alpha, GPENCIL_STRENGTH_MIN, 1.0f);
@@ -119,7 +128,7 @@ static void gp_set_point_uniform_color(const bGPDspoint *pt, const float ink[4])
 	immUniformColor3fvAlpha(ink, alpha);
 }
 
-static void gp_set_point_varying_color(const bGPDspoint *pt, const float ink[4], unsigned attrib_id)
+static void gp_set_point_varying_color(const bGPDspoint *pt, const float ink[4], uint attrib_id)
 {
 	float alpha = ink[3] * pt->strength;
 	CLAMP(alpha, GPENCIL_STRENGTH_MIN, 1.0f);
@@ -134,7 +143,7 @@ static void gp_draw_stroke_buffer_fill(const tGPspoint *points, int totpoints, f
 	}
 	int tot_triangles = totpoints - 2;
 	/* allocate memory for temporary areas */
-	unsigned int(*tmp_triangles)[3] = MEM_mallocN(sizeof(*tmp_triangles) * tot_triangles, "GP Stroke buffer temp triangulation");
+	uint(*tmp_triangles)[3] = MEM_mallocN(sizeof(*tmp_triangles) * tot_triangles, "GP Stroke buffer temp triangulation");
 	float(*points2d)[2] = MEM_mallocN(sizeof(*points2d) * totpoints, "GP Stroke buffer temp 2d points");
 
 	/* Convert points to array and triangulate
@@ -146,18 +155,18 @@ static void gp_draw_stroke_buffer_fill(const tGPspoint *points, int totpoints, f
 		points2d[i][0] = pt->x;
 		points2d[i][1] = pt->y;
 	}
-	BLI_polyfill_calc((const float(*)[2])points2d, (unsigned int)totpoints, 0, (unsigned int(*)[3])tmp_triangles);
+	BLI_polyfill_calc((const float(*)[2])points2d, (uint)totpoints, 0, (uint(*)[3])tmp_triangles);
 
 	/* draw triangulation data */
 	if (tot_triangles > 0) {
-		Gwn_VertFormat *format = immVertexFormat();
-		uint pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_I32, 2, GWN_FETCH_INT_TO_FLOAT);
-		uint color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT);
+		GPUVertFormat *format = immVertexFormat();
+		uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_I32, 2, GPU_FETCH_INT_TO_FLOAT);
+		uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_U8, 4, GPU_FETCH_INT_TO_FLOAT_UNIT);
 
 		immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
 
 		/* Draw all triangles for filling the polygon */
-		immBegin(GWN_PRIM_TRIS, tot_triangles * 3);
+		immBegin(GPU_PRIM_TRIS, tot_triangles * 3);
 		/* TODO: use batch instead of immediate mode, to share vertices */
 
 		const tGPspoint *pt;
@@ -208,9 +217,9 @@ static void gp_draw_stroke_buffer(const tGPspoint *points, int totpoints, short
 		return;
 	}
 
-	Gwn_VertFormat *format = immVertexFormat();
-	uint pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_I32, 2, GWN_FETCH_INT_TO_FLOAT);
-	uint color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT);
+	GPUVertFormat *format = immVertexFormat();
+	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_I32, 2, GPU_FETCH_INT_TO_FLOAT);
+	uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_U8, 4, GPU_FETCH_INT_TO_FLOAT_UNIT);
 
 	const tGPspoint *pt = points;
 
@@ -218,7 +227,7 @@ static void gp_draw_stroke_buffer(const tGPspoint *points, int totpoints, short
 		/* if drawing a single point, draw it larger */
 		GPU_point_size((float)(thickness + 2) * points->pressure);
 		immBindBuiltinProgram(GPU_SHADER_3D_POINT_FIXED_SIZE_VARYING_COLOR);
-		immBegin(GWN_PRIM_POINTS, 1);
+		immBegin(GPU_PRIM_POINTS, 1);
 		gp_set_tpoint_varying_color(pt, ink, color);
 		immVertex2iv(pos, &pt->x);
 	}
@@ -228,7 +237,7 @@ static void gp_draw_stroke_buffer(const tGPspoint *points, int totpoints, short
 		/* draw stroke curve */
 		GPU_line_width(max_ff(oldpressure * thickness, 1.0));
 		immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
-		immBeginAtMost(GWN_PRIM_LINE_STRIP, totpoints);
+		immBeginAtMost(GPU_PRIM_LINE_STRIP, totpoints);
 
 		/* TODO: implement this with a geometry shader to draw one continuous tapered stroke */
 
@@ -247,13 +256,13 @@ static void gp_draw_stroke_buffer(const tGPspoint *points, int totpoints, short
 				draw_points = 0;
 
 				GPU_line_width(max_ff(pt->pressure * thickness, 1.0f));
-				immBeginAtMost(GWN_PRIM_LINE_STRIP, totpoints - i + 1);
+				immBeginAtMost(GPU_PRIM_LINE_STRIP, totpoints - i + 1);
 
 				/* need to roll-back one point to ensure that there are no gaps in the stroke */
 				if (i != 0) {
 					gp_set_tpoint_varying_color(pt - 1, ink, color);
 					immVertex2iv(pos, &(pt - 1)->x);
-					++draw_points;
+					draw_points++;
 				}
 
 				oldpressure = pt->pressure; /* reset our threshold */
@@ -262,7 +271,7 @@ static void gp_draw_stroke_buffer(const tGPspoint *points, int totpoints, short
 			/* now the point we want */
 			gp_set_tpoint_varying_color(pt, ink, color);
 			immVertex2iv(pos, &pt->x);
-			++draw_points;
+			draw_points++;
 		}
 		/* need to have 2 points to avoid immEnd assert error */
 		if (draw_points < 2) {
@@ -319,14 +328,14 @@ static void gp_draw_stroke_volumetric_buffer(const tGPspoint *points, int totpoi
 	if (dflag & (GP_DRAWDATA_ONLY3D | GP_DRAWDATA_ONLYV2D))
 		return;
 
-	Gwn_VertFormat *format = immVertexFormat();
-	uint pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
-	uint size = GWN_vertformat_attr_add(format, "size", GWN_COMP_F32, 1, GWN_FETCH_FLOAT);
-	uint color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT);
+	GPUVertFormat *format = immVertexFormat();
+	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
+	uint size = GPU_vertformat_attr_add(format, "size", GPU_COMP_F32, 1, GPU_FETCH_FLOAT);
+	uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_U8, 4, GPU_FETCH_INT_TO_FLOAT_UNIT);
 
 	immBindBuiltinProgram(GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR);
 	GPU_enable_program_point_size();
-	immBegin(GWN_PRIM_POINTS, totpoints);
+	immBegin(GPU_PRIM_POINTS, totpoints);
 
 	const tGPspoint *pt = points;
 	for (int i = 0; i < totpoints; i++, pt++) {
@@ -346,14 +355,14 @@ static void gp_draw_stroke_volumetric_2d(const bGPDspoint *points, int totpoints
                                          int offsx, int offsy, int winx, int winy,
                                          const float diff_mat[4][4], const float ink[4])
 {
-	Gwn_VertFormat *format = immVertexFormat();
-	uint pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
-	uint size = GWN_vertformat_attr_add(format, "size", GWN_COMP_F32, 1, GWN_FETCH_FLOAT);
-	uint color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT);
+	GPUVertFormat *format = immVertexFormat();
+	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
+	uint size = GPU_vertformat_attr_add(format, "size", GPU_COMP_F32, 1, GPU_FETCH_FLOAT);
+	uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_U8, 4, GPU_FETCH_INT_TO_FLOAT_UNIT);
 
 	immBindBuiltinProgram(GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR);
 	GPU_enable_program_point_size();
-	immBegin(GWN_PRIM_POINTS, totpoints);
+	immBegin(GPU_PRIM_POINTS, totpoints);
 
 	const bGPDspoint *pt = points;
 	for (int i = 0; i < totpoints; i++, pt++) {
@@ -379,14 +388,14 @@ static void gp_draw_stroke_volumetric_3d(
         const bGPDspoint *points, int totpoints, short thickness,
         const float ink[4])
 {
-	Gwn_VertFormat *format = immVertexFormat();
-	uint pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT);
-	uint size = GWN_vertformat_attr_add(format, "size", GWN_COMP_F32, 1, GWN_FETCH_FLOAT);
-	uint color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT);
+	GPUVertFormat *format = immVertexFormat();
+	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
+	uint size = GPU_vertformat_attr_add(format, "size", GPU_COMP_F32, 1, GPU_FETCH_FLOAT);
+	uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_U8, 4, GPU_FETCH_INT_TO_FLOAT_UNIT);
 
 	immBindBuiltinProgram(GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR);
 	GPU_enable_program_point_size();
-	immBegin(GWN_PRIM_POINTS, totpoints);
+	immBegin(GPU_PRIM_POINTS, totpoints);
 
 	const bGPDspoint *pt = points;
 	for (int i = 0; i < totpoints && pt; i++, pt++) {
@@ -402,6 +411,50 @@ static void gp_draw_stroke_volumetric_3d(
 
 
 /* --------------- Stroke Fills ----------------- */
+/* calc bounding box in 2d using flat projection data */
+static void gp_calc_2d_bounding_box(const float(*points2d)[2], int totpoints, float minv[2], float maxv[2], bool expand)
+{
+	copy_v2_v2(minv, points2d[0]);
+	copy_v2_v2(maxv, points2d[0]);
+
+	for (int i = 1; i < totpoints; i++) {
+		/* min */
+		if (points2d[i][0] < minv[0]) {
+			minv[0] = points2d[i][0];
+		}
+		if (points2d[i][1] < minv[1]) {
+			minv[1] = points2d[i][1];
+		}
+		/* max */
+		if (points2d[i][0] > maxv[0]) {
+			maxv[0] = points2d[i][0];
+		}
+		if (points2d[i][1] > maxv[1]) {
+			maxv[1] = points2d[i][1];
+		}
+	}
+	/* If not expanded, use a perfect square */
+	if (expand == false) {
+		if (maxv[0] > maxv[1]) {
+			maxv[1] = maxv[0];
+		}
+		else {
+			maxv[0] = maxv[1];
+		}
+	}
+}
+
+/* calc texture coordinates using flat projected points */
+static void gp_calc_stroke_text_coordinates(const float(*points2d)[2], int totpoints, float minv[2], float maxv[2], float(*r_uv)[2])
+{
+	float d[2];
+	d[0] = maxv[0] - minv[0];
+	d[1] = maxv[1] - minv[1];
+	for (int i = 0; i < totpoints; i++) {
+		r_uv[i][0] = (points2d[i][0] - minv[0]) / d[0];
+		r_uv[i][1] = (points2d[i][1] - minv[1]) / d[1];
+	}
+}
 
 /* Get points of stroke always flat to view not affected by camera view or view position */
 static void gp_stroke_2d_flat(const bGPDspoint *points, int totpoints, float(*points2d)[2], int *r_direction)
@@ -447,7 +500,6 @@ static void gp_stroke_2d_flat(const bGPDspoint *points, int totpoints, float(*po
 	*r_direction = (int)locy[2];
 }
 
-
 /* Triangulate stroke for high quality fill (this is done only if cache is null or stroke was modified) */
 static void gp_triangulate_stroke_fill(bGPDstroke *gps)
 {
@@ -455,14 +507,23 @@ static void gp_triangulate_stroke_fill(bGPDstroke *gps)
 
 	/* allocate memory for temporary areas */
 	gps->tot_triangles = gps->totpoints - 2;
-	unsigned int (*tmp_triangles)[3] = MEM_mallocN(sizeof(*tmp_triangles) * gps->tot_triangles, "GP Stroke temp triangulation");
+	uint (*tmp_triangles)[3] = MEM_mallocN(sizeof(*tmp_triangles) * gps->tot_triangles, "GP Stroke temp triangulation");
 	float (*points2d)[2] = MEM_mallocN(sizeof(*points2d) * gps->totpoints, "GP Stroke temp 2d points");
+	float(*uv)[2] = MEM_mallocN(sizeof(*uv) * gps->totpoints, "GP Stroke temp 2d uv data");
 
 	int direction = 0;
 
 	/* convert to 2d and triangulate */
 	gp_stroke_2d_flat(gps->points, gps->totpoints, points2d, &direction);
-	BLI_polyfill_calc(points2d, (unsigned int)gps->totpoints, direction, tmp_triangles);
+	BLI_polyfill_calc(points2d, (uint)gps->totpoints, direction, tmp_triangles);
+
+	/* calc texture coordinates automatically */
+	float minv[2];
+	float maxv[2];
+	/* first needs bounding box data */
+	gp_calc_2d_bounding_box((const float(*)[2])points2d, gps->totpoints, minv, maxv, false);
+	/* calc uv data */
+	gp_calc_stroke_text_coordinates((const float(*)[2])points2d, gps->totpoints, minv, maxv, uv);
 
 	/* Number of triangles */
 	gps->tot_triangles = gps->totpoints - 2;
@@ -476,7 +537,12 @@ static void gp_triangulate_stroke_fill(bGPDstroke *gps)
 		}
 
 		for (int i = 0; i < gps->tot_triangles; i++) {
-			memcpy(gps->triangles[i].verts, tmp_triangles[i], sizeof(uint[3]));
+			bGPDtriangle *stroke_triangle = &gps->triangles[i];
+			memcpy(stroke_triangle->verts, tmp_triangles[i], sizeof(uint[3]));
+			/* copy texture coordinates */
+			copy_v2_v2(stroke_triangle->uv[0], uv[tmp_triangles[i][0]]);
+			copy_v2_v2(stroke_triangle->uv[1], uv[tmp_triangles[i][1]]);
+			copy_v2_v2(stroke_triangle->uv[2], uv[tmp_triangles[i][2]]);
 		}
 	}
 	else {
@@ -493,73 +559,128 @@ static void gp_triangulate_stroke_fill(bGPDstroke *gps)
 	}
 
 	/* clear memory */
-	if (tmp_triangles) MEM_freeN(tmp_triangles);
-	if (points2d) MEM_freeN(points2d);
+	MEM_SAFE_FREE(tmp_triangles);
+	MEM_SAFE_FREE(points2d);
+	MEM_SAFE_FREE(uv);
 }
 
-
-/* draw fills for shapes */
-static void gp_draw_stroke_fill(
-        bGPdata *gpd, bGPDstroke *gps,
-        int offsx, int offsy, int winx, int winy, const float diff_mat[4][4], const float color[4])
+/* add a new fill point and texture coordinates to vertex buffer */
+static void gp_add_filldata_tobuffer(
+        const bGPDspoint *pt, const float uv[2], uint pos, uint texcoord, short flag,
+        int offsx, int offsy, int winx, int winy, const float diff_mat[4][4])
 {
 	float fpt[3];
+	float co[2];
 
-	BLI_assert(gps->totpoints >= 3);
+	mul_v3_m4v3(fpt, diff_mat, &pt->x);
+	/* if 2d, need conversion */
+	if (!(flag & GP_STROKE_3DSPACE)) {
+		gp_calc_2d_stroke_fxy(fpt, flag, offsx, offsy, winx, winy, co);
+		copy_v2_v2(fpt, co);
+		fpt[2] = 0.0f; /* 2d always is z=0.0f */
+	}
 
-	bGPDpalettecolor *palcolor = ED_gpencil_stroke_getcolor(gpd, gps);
+	immAttrib2f(texcoord, uv[0], uv[1]); /* texture coordinates */
+	immVertex3fv(pos, fpt); /* position */
+}
 
-	/* Triangulation fill if high quality flag is enabled */
-	if (palcolor->flag & PC_COLOR_HQ_FILL) {
-		/* Calculate triangles cache for filling area (must be done only after changes) */
-		if ((gps->flag & GP_STROKE_RECALC_CACHES) || (gps->tot_triangles == 0) || (gps->triangles == NULL)) {
-			gp_triangulate_stroke_fill(gps);
-		}
-		BLI_assert(gps->tot_triangles >= 1);
+#if 0 /* GPXX disabled, not used in annotations */
+/* assign image texture for filling stroke */
+static int gp_set_filling_texture(Image *image, short flag)
+{
+	ImBuf *ibuf;
+	uint *bind = &image->bindcode[TEXTARGET_TEXTURE_2D];
+	int error = GL_NO_ERROR;
+	ImageUser iuser = { NULL };
+	void *lock;
 
-		uint pos;
-		if (gps->flag & GP_STROKE_3DSPACE) {
-			pos = GWN_vertformat_attr_add(immVertexFormat(), "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT);
-			immBindBuiltinProgram(GPU_SHADER_3D_UNIFORM_COLOR);
-		}
-		else {
-			pos = GWN_vertformat_attr_add(immVertexFormat(), "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
-			immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
-		}
+	iuser.ok = true;
 
-		immUniformColor4fv(color);
+	ibuf = BKE_image_acquire_ibuf(image, &iuser, &lock);
 
-		/* Draw all triangles for filling the polygon (cache must be calculated before) */
-		immBegin(GWN_PRIM_TRIS, gps->tot_triangles * 3);
-		/* TODO: use batch instead of immediate mode, to share vertices */
+	if (ibuf == NULL || ibuf->rect == NULL) {
+		BKE_image_release_ibuf(image, ibuf, NULL);
+		return (int)GL_INVALID_OPERATION;
+	}
 
-		bGPDtriangle *stroke_triangle = gps->triangles;
-		bGPDspoint *pt;
+	GPU_create_gl_tex(bind, ibuf->rect, ibuf->rect_float, ibuf->x, ibuf->y, GL_TEXTURE_2D,
+		false, false, image);
 
-		if (gps->flag & GP_STROKE_3DSPACE) {
-			for (int i = 0; i < gps->tot_triangles; i++, stroke_triangle++) {
-				for (int j = 0; j < 3; j++) {
-					pt = &gps->points[stroke_triangle->verts[j]];
-					mul_v3_m4v3(fpt, diff_mat, &pt->x);
-					immVertex3fv(pos, fpt);
-				}
-			}
-		}
-		else {
-			for (int i = 0; i < gps->tot_triangles; i++, stroke_triangle++) {
-				for (int j = 0; j < 3; j++) {
-					float co[2];
-					pt = &gps->points[stroke_triangle->verts[j]];
-					mul_v3_m4v3(fpt, diff_mat, &pt->x);
-					gp_calc_2d_stroke_fxy(fpt, gps->flag, offsx, offsy, winx, winy, co);
-					immVertex3fv(pos, fpt);
-				}
-			}
-		}
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+	if (flag & GP_STYLE_COLOR_TEX_CLAMP) {
+		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
+		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
+	}
+	else {
+		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+	}
+	BKE_image_release_ibuf(image, ibuf, NULL);
 
-		immEnd();
-		immUnbindProgram();
+	return error;
+}
+#endif
+
+/* draw fills for shapes */
+static void gp_draw_stroke_fill(
+        bGPdata *gpd, bGPDstroke *gps,
+        int offsx, int offsy, int winx, int winy, const float diff_mat[4][4], const float color[4])
+{
+	BLI_assert(gps->totpoints >= 3);
+	Material *ma = gpd->mat[gps->mat_nr];
+	MaterialGPencilStyle *gp_style = ma->gp_style;
+
+	/* Calculate triangles cache for filling area (must be done only after changes) */
+	if ((gps->flag & GP_STROKE_RECALC_CACHES) || (gps->tot_triangles == 0) || (gps->triangles == NULL)) {
+		gp_triangulate_stroke_fill(gps);
+	}
+	BLI_assert(gps->tot_triangles >= 1);
+
+	GPUVertFormat *format = immVertexFormat();
+	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
+	uint texcoord = GPU_vertformat_attr_add(format, "texCoord", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
+	immBindBuiltinProgram(GPU_SHADER_GPENCIL_FILL);
+
+	immUniformColor4fv(color);
+	immUniform4fv("color2", gp_style->mix_rgba);
+	immUniform1i("fill_type", gp_style->fill_style);
+	immUniform1f("mix_factor", gp_style->mix_factor);
+
+	immUniform1f("gradient_angle", gp_style->gradient_angle);
+	immUniform1f("gradient_radius", gp_style->gradient_radius);
+	immUniform1f("pattern_gridsize", gp_style->pattern_gridsize);
+	immUniform2fv("gradient_scale", gp_style->gradient_scale);
+	immUniform2fv("gradient_shift", gp_style->gradient_shift);
+
+	immUniform1f("texture_angle", gp_style->texture_angle);
+	immUniform2fv("texture_scale", gp_style->texture_scale);
+	immUniform2fv("texture_offset", gp_style->texture_offset);
+	immUniform1f("texture_opacity", gp_style->texture_opacity);
+	immUniform1i("t_mix", gp_style->flag & GP_STYLE_COLOR_TEX_MIX ? 1 : 0);
+	immUniform1i("t_flip", gp_style->flag & GP_STYLE_COLOR_FLIP_FILL ? 1 : 0);
+#if 0 /* GPXX disabled, not used in annotations */
+	/* image texture */
+	if ((gp_style->fill_style == GP_STYLE_FILL_STYLE_TEXTURE) || (gp_style->flag & GP_STYLE_COLOR_TEX_MIX)) {
+		gp_set_filling_texture(gp_style->ima, gp_style->flag);
 	}
+#endif
+	/* Draw all triangles for filling the polygon (cache must be calculated before) */
+	immBegin(GPU_PRIM_TRIS, gps->tot_triangles * 3);
+	/* TODO: use batch instead of immediate mode, to share vertices */
+
+	const bGPDtriangle *stroke_triangle = gps->triangles;
+	for (int i = 0; i < gps->tot_triangles; i++, stroke_triangle++) {
+		for (int j = 0; j < 3; j++) {
+			gp_add_filldata_tobuffer(
+			        &gps->points[stroke_triangle->verts[j]], stroke_triangle->uv[j],
+			        pos, texcoord, gps->flag,
+			        offsx, offsy, winx, winy, diff_mat);
+		}
+	}
+
+	immEnd();
+	immUnbindProgram();
 }
 
 /* ----- Existing Strokes Drawing (3D and Point) ------ */
@@ -575,8 +696,8 @@ static void gp_draw_stroke_point(
 	float fpt[3];
 	mul_v3_m4v3(fpt, diff_mat, &pt->x);
 
-	Gwn_VertFormat *format = immVertexFormat();
-	uint pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT);
+	GPUVertFormat *format = immVertexFormat();
+	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
 
 	if (sflag & GP_STROKE_3DSPACE) {
 		immBindBuiltinProgram(GPU_SHADER_3D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_AA);
@@ -594,94 +715,88 @@ static void gp_draw_stroke_point(
 	/* set point thickness (since there's only one of these) */
 	immUniform1f("size", (float)(thickness + 2) * pt->pressure);
 
-	immBegin(GWN_PRIM_POINTS, 1);
+	immBegin(GPU_PRIM_POINTS, 1);
 	immVertex3fv(pos, fpt);
 	immEnd();
 
 	immUnbindProgram();
 }
 
-/* draw a given stroke in 3d (i.e. in 3d-space), using simple ogl lines */
-static void gp_draw_stroke_3d(const bGPDspoint *points, int totpoints, short thickness, bool UNUSED(debug),
-                              short UNUSED(sflag), const float diff_mat[4][4], const float ink[4], bool cyclic)
+/* draw a given stroke in 3d (i.e. in 3d-space) */
+static void gp_draw_stroke_3d(tGPDdraw *tgpw, short thickness, const float ink[4], bool cyclic)
 {
+	bGPDspoint *points = tgpw->gps->points;
+	int totpoints = tgpw->gps->totpoints;
+
+	const float viewport[2] = { (float)tgpw->winx, (float)tgpw->winy };
 	float curpressure = points[0].pressure;
 	float fpt[3];
-	float cyclic_fpt[3];
-	int draw_points = 0;
-
-	/* if cyclic needs one vertex more */
-	int cyclic_add = 0;
-	if (cyclic) {
-		++cyclic_add;
-	}
 
+	/* if cyclic needs more vertex */
+	int cyclic_add = (cyclic) ? 1 : 0;
 
-	Gwn_VertFormat *format = immVertexFormat();
-	uint pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT);
-	uint color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT);
+	GPUVertFormat *format = immVertexFormat();
+	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
+	uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_U8, 4, GPU_FETCH_INT_TO_FLOAT_UNIT);
+	uint thickattrib = GPU_vertformat_attr_add(format, "thickness", GPU_COMP_F32, 1, GPU_FETCH_FLOAT);
 
-	immBindBuiltinProgram(GPU_SHADER_3D_SMOOTH_COLOR);
+	immBindBuiltinProgram(GPU_SHADER_GPENCIL_STROKE);
+	immUniform2fv("Viewport", viewport);
+	immUniform1f("pixsize", tgpw->rv3d->pixsize);
+	immUniform1f("pixelsize", U.pixelsize);
+	float obj_scale = (tgpw->ob->size[0] + tgpw->ob->size[1] + tgpw->ob->size[2]) / 3.0f;
 
-	/* TODO: implement this with a geometry shader to draw one continuous tapered stroke */
+	immUniform1f("objscale", obj_scale);
+	int keep_size = (int)((tgpw->gpd) && (tgpw->gpd->flag & GP_DATA_STROKE_KEEPTHICKNESS));
+	immUniform1i("keep_size", keep_size);
+	immUniform1i("pixfactor", tgpw->gpd->pixfactor);
+	immUniform1i("xraymode", tgpw->gpd->xray_mode);
 
 	/* draw stroke curve */
 	GPU_line_width(max_ff(curpressure * thickness, 1.0f));
-	immBeginAtMost(GWN_PRIM_LINE_STRIP, totpoints + cyclic_add);
+	immBeginAtMost(GPU_PRIM_LINE_STRIP_ADJ, totpoints + cyclic_add + 2);
 	const bGPDspoint *pt = points;
-	for (int i = 0; i < totpoints; i++, pt++) {
-		gp_set_point_varying_color(pt, ink, color);
 
-		/* if there was a significant pressure change, stop the curve, change the thickness of the stroke,
-		 * and continue drawing again (since line-width cannot change in middle of GL_LINE_STRIP)
-		 * Note: we want more visible levels of pressures when thickness is bigger.
-		 */
-		if (fabsf(pt->pressure - curpressure) > 0.2f / (float)thickness) {
-			/* if the pressure changes before get at least 2 vertices, need to repeat last point to avoid assert in immEnd() */
-			if (draw_points < 2) {
-				const bGPDspoint *pt2 = pt - 1;
-				mul_v3_m4v3(fpt, diff_mat, &pt2->x);
-				immVertex3fv(pos, fpt);
+	for (int i = 0; i < totpoints; i++, pt++) {
+		/* first point for adjacency (not drawn) */
+		if (i == 0) {
+			gp_set_point_varying_color(points, ink, color);
+			immAttrib1f(thickattrib, max_ff(curpressure * thickness, 1.0f));
+			if ((cyclic) && (totpoints > 2)) {
+				mul_v3_m4v3(fpt, tgpw->diff_mat, &(points + totpoints - 1)->x);
 			}
-			immEnd();
-			draw_points = 0;
-
-			curpressure = pt->pressure;
-			GPU_line_width(max_ff(curpressure * thickness, 1.0f));
-			immBeginAtMost(GWN_PRIM_LINE_STRIP, totpoints - i + 1 + cyclic_add);
-
-			/* need to roll-back one point to ensure that there are no gaps in the stroke */
-			if (i != 0) {
-				const bGPDspoint *pt2 = pt - 1;
-				mul_v3_m4v3(fpt, diff_mat, &pt2->x);
-				gp_set_point_varying_color(pt2, ink, color);
-				immVertex3fv(pos, fpt);
-				++draw_points;
+			else {
+				mul_v3_m4v3(fpt, tgpw->diff_mat, &(points + 1)->x);
 			}
+			mul_v3_fl(fpt, -1.0f);
+			immVertex3fv(pos, fpt);
 		}
-
-		/* now the point we want */
-		mul_v3_m4v3(fpt, diff_mat, &pt->x);
+		/* set point */
+		gp_set_point_varying_color(pt, ink, color);
+		immAttrib1f(thickattrib, max_ff(curpressure * thickness, 1.0f));
+		mul_v3_m4v3(fpt, tgpw->diff_mat, &pt->x);
 		immVertex3fv(pos, fpt);
-		++draw_points;
 
-		if (cyclic && i == 0) {
-			/* save first point to use in cyclic */
-			copy_v3_v3(cyclic_fpt, fpt);
-		}
+		curpressure = pt->pressure;
 	}
 
-	if (cyclic) {
+	if (cyclic && totpoints > 2) {
 		/* draw line to first point to complete the cycle */
-		immVertex3fv(pos, cyclic_fpt);
-		++draw_points;
-	}
+		immAttrib1f(thickattrib, max_ff(points->pressure * thickness, 1.0f));
+		mul_v3_m4v3(fpt, tgpw->diff_mat, &points->x);
+		immVertex3fv(pos, fpt);
 
-	/* if less of two points, need to repeat last point to avoid assert in immEnd() */
-	if (draw_points < 2) {
-		const bGPDspoint *pt2 = pt - 1;
-		mul_v3_m4v3(fpt, diff_mat, &pt2->x);
-		gp_set_point_varying_color(pt2, ink, color);
+		/* now add adjacency point (not drawn) */
+		immAttrib1f(thickattrib, max_ff((points + 1)->pressure * thickness, 1.0f));
+		mul_v3_m4v3(fpt, tgpw->diff_mat, &(points + 1)->x);
+		immVertex3fv(pos, fpt);
+	}
+	/* last adjacency point (not drawn) */
+	else {
+		gp_set_point_varying_color(points + totpoints - 1, ink, color);
+		immAttrib1f(thickattrib, max_ff(curpressure * thickness, 1.0f));
+		mul_v3_m4v3(fpt, tgpw->diff_mat, &(points + totpoints - 2)->x);
+		mul_v3_fl(fpt, -1.0f);
 		immVertex3fv(pos, fpt);
 	}
 
@@ -692,8 +807,9 @@ static void gp_draw_stroke_3d(const bGPDspoint *points, int totpoints, short thi
 /* ----- Fancy 2D-Stroke Drawing ------ */
 
 /* draw a given stroke in 2d */
-static void gp_draw_stroke_2d(const bGPDspoint *points, int totpoints, short thickness_s, short dflag, short sflag,
-                              bool UNUSED(debug), int offsx, int offsy, int winx, int winy, const float diff_mat[4][4], const float ink[4])
+static void gp_draw_stroke_2d(
+        const bGPDspoint *points, int totpoints, short thickness_s, short dflag, short sflag,
+        bool UNUSED(debug), int offsx, int offsy, int winx, int winy, const float diff_mat[4][4], const float ink[4])
 {
 	/* otherwise thickness is twice that of the 3D view */
 	float thickness = (float)thickness_s * 0.5f;
@@ -716,12 +832,12 @@ static void gp_draw_stroke_2d(const bGPDspoint *points, int totpoints, short thi
 		int i;
 		float fpt[3];
 
-		Gwn_VertFormat *format = immVertexFormat();
-		uint pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
-		uint color = GWN_vertformat_attr_add(format, "color", GWN_COMP_U8, 4, GWN_FETCH_INT_TO_FLOAT_UNIT);
+		GPUVertFormat *format = immVertexFormat();
+		uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
+		uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_U8, 4, GPU_FETCH_INT_TO_FLOAT_UNIT);
 
 		immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR);
-		immBegin(GWN_PRIM_TRI_STRIP, totpoints * 2 + 4);
+		immBegin(GPU_PRIM_TRI_STRIP, totpoints * 2 + 4);
 
 		/* get x and y coordinates from first point */
 		mul_v3_m4v3(fpt, diff_mat, &points->x);
@@ -900,10 +1016,7 @@ static bool gp_can_draw_stroke(const bGPDstroke *gps, const int dflag)
 }
 
 /* draw a set of strokes */
-static void gp_draw_strokes(
-        bGPdata *gpd, const bGPDframe *gpf, int offsx, int offsy, int winx, int winy, int dflag,
-        bool debug, short lthick, const float opacity, const float tintcolor[4],
-        const bool onion, const bool custonion, const float diff_mat[4][4])
+static void gp_draw_strokes(tGPDdraw *tgpw)
 {
 	float tcolor[4];
 	float tfill[4];
@@ -912,31 +1025,41 @@ static void gp_draw_strokes(
 
 	GPU_enable_program_point_size();
 
-	for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
+	for (bGPDstroke *gps = tgpw->t_gpf->strokes.first; gps; gps = gps->next) {
 		/* check if stroke can be drawn */
-		if (gp_can_draw_stroke(gps, dflag) == false) {
+		if (gp_can_draw_stroke(gps, tgpw->dflag) == false) {
 			continue;
 		}
 		/* check if the color is visible */
-		bGPDpalettecolor *palcolor = ED_gpencil_stroke_getcolor(gpd, gps);
-		if ((palcolor == NULL) ||
-		    (palcolor->flag & PC_COLOR_HIDE) ||
+		Material *ma = tgpw->gpd->mat[gps->mat_nr];
+		MaterialGPencilStyle *gp_style = ma->gp_style;
+
+		if ((gp_style == NULL) ||
+		    (gp_style->flag & GP_STYLE_COLOR_HIDE) ||
 		    /* if onion and ghost flag do not draw*/
-		    (onion && (palcolor->flag & PC_COLOR_ONIONSKIN)))
+		    (tgpw->onion && (gp_style->flag & GP_STYLE_COLOR_ONIONSKIN)))
+		{
+			continue;
+		}
+
+		/* if disable fill, the colors with fill must be omitted too except fill boundary strokes */
+		if ((tgpw->disable_fill == 1) &&
+		    (gp_style->fill_rgba[3] > 0.0f) &&
+		    ((gps->flag & GP_STROKE_NOFILL) == 0))
 		{
 			continue;
 		}
 
 		/* calculate thickness */
-		sthickness = gps->thickness + lthick;
+		sthickness = gps->thickness + tgpw->lthick;
 
 		if (sthickness <= 0) {
 			continue;
 		}
 
 		/* check which stroke-drawer to use */
-		if (dflag & GP_DRAWDATA_ONLY3D) {
-			const int no_xray = (dflag & GP_DRAWDATA_NO_XRAY);
+		if (tgpw->dflag & GP_DRAWDATA_ONLY3D) {
+			const int no_xray = (tgpw->dflag & GP_DRAWDATA_NO_XRAY);
 			int mask_orig = 0;
 
 			if (no_xray) {
@@ -951,57 +1074,64 @@ static void gp_draw_strokes(
 
 			/* 3D Fill */
 			//if ((dflag & GP_DRAWDATA_FILL) && (gps->totpoints >= 3)) {
-			if (gps->totpoints >= 3) {
-				/* set color using palette, tint color and opacity */
-				interp_v3_v3v3(tfill, palcolor->fill, tintcolor, tintcolor[3]);
-				tfill[3] = palcolor->fill[3] * opacity;
-				if (tfill[3] > GPENCIL_ALPHA_OPACITY_THRESH) {
+			if ((gps->totpoints >= 3) && (tgpw->disable_fill != 1)) {
+				/* set color using material, tint color and opacity */
+				interp_v3_v3v3(tfill, gp_style->fill_rgba, tgpw->tintcolor, tgpw->tintcolor[3]);
+				tfill[3] = gp_style->fill_rgba[3] * tgpw->opacity;
+				if ((tfill[3] > GPENCIL_ALPHA_OPACITY_THRESH) || (gp_style->fill_style > 0)) {
 					const float *color;
-					if (!onion) {
+					if (!tgpw->onion) {
 						color = tfill;
 					}
 					else {
-						if (custonion) {
-							color = tintcolor;
+						if (tgpw->custonion) {
+							color = tgpw->tintcolor;
 						}
 						else {
-							ARRAY_SET_ITEMS(tfill, UNPACK3(palcolor->fill), tintcolor[3]);
+							ARRAY_SET_ITEMS(tfill, UNPACK3(gp_style->fill_rgba), tgpw->tintcolor[3]);
 							color = tfill;
 						}
 					}
-					gp_draw_stroke_fill(gpd, gps, offsx, offsy, winx, winy, diff_mat, color);
+					gp_draw_stroke_fill(
+					        tgpw->gpd, gps,
+					        tgpw->offsx, tgpw->offsy, tgpw->winx, tgpw->winy, tgpw->diff_mat, color);
 				}
 			}
 
 			/* 3D Stroke */
-			/* set color using palette, tint color and opacity */
-			if (!onion) {
-				interp_v3_v3v3(tcolor, palcolor->color, tintcolor, tintcolor[3]);
-				tcolor[3] = palcolor->color[3] * opacity;
+			/* set color using material tint color and opacity */
+			if (!tgpw->onion) {
+				interp_v3_v3v3(tcolor, gp_style->stroke_rgba, tgpw->tintcolor, tgpw->tintcolor[3]);
+				tcolor[3] = gp_style->stroke_rgba[3] * tgpw->opacity;
 				copy_v4_v4(ink, tcolor);
 			}
 			else {
-				if (custonion) {
-					copy_v4_v4(ink, tintcolor);
+				if (tgpw->custonion) {
+					copy_v4_v4(ink, tgpw->tintcolor);
 				}
 				else {
-					ARRAY_SET_ITEMS(tcolor, palcolor->color[0], palcolor->color[1], palcolor->color[2], opacity);
+					ARRAY_SET_ITEMS(tcolor, UNPACK3(gp_style->stroke_rgba), tgpw->opacity);
 					copy_v4_v4(ink, tcolor);
 				}
 			}
-			if (palcolor->flag & PC_COLOR_VOLUMETRIC) {
+			if (gp_style->mode == GP_STYLE_MODE_DOTS) {
 				/* volumetric stroke drawing */
-				gp_draw_stroke_volumetric_3d(gps->points, gps->totpoints, sthickness, ink);
+				if (tgpw->disable_fill != 1) {
+					gp_draw_stroke_volumetric_3d(gps->points, gps->totpoints, sthickness, ink);
+				}
 			}
 			else {
 				/* 3D Lines - OpenGL primitives-based */
 				if (gps->totpoints == 1) {
-					gp_draw_stroke_point(gps->points, sthickness, dflag, gps->flag, offsx, offsy, winx, winy,
-					                     diff_mat, ink);
+					if (tgpw->disable_fill != 1) {
+						gp_draw_stroke_point(gps->points, sthickness, tgpw->dflag, gps->flag,
+							tgpw->offsx, tgpw->offsy, tgpw->winx, tgpw->winy,
+							tgpw->diff_mat, ink);
+					}
 				}
 				else {
-					gp_draw_stroke_3d(gps->points, gps->totpoints, sthickness, debug, gps->flag,
-					                  diff_mat, ink, gps->flag & GP_STROKE_CYCLIC);
+					tgpw->gps = gps;
+					gp_draw_stroke_3d(tgpw, sthickness, ink, gps->flag & GP_STROKE_CYCLIC);
 				}
 			}
 			if (no_xray) {
@@ -1014,58 +1144,63 @@ static void gp_draw_strokes(
 		else {
 			/* 2D - Fill */
 			if (gps->totpoints >= 3) {
-				/* set color using palette, tint color and opacity */
-				interp_v3_v3v3(tfill, palcolor->fill, tintcolor, tintcolor[3]);
-				tfill[3] = palcolor->fill[3] * opacity;
-				if (tfill[3] > GPENCIL_ALPHA_OPACITY_THRESH) {
+				/* set color using material, tint color and opacity */
+				interp_v3_v3v3(tfill, gp_style->fill_rgba, tgpw->tintcolor, tgpw->tintcolor[3]);
+				tfill[3] = gp_style->fill_rgba[3] * tgpw->opacity;
+				if ((tfill[3] > GPENCIL_ALPHA_OPACITY_THRESH) || (gp_style->fill_style > 0)) {
 					const float *color;
-					if (!onion) {
+					if (!tgpw->onion) {
 						color = tfill;
 					}
 					else {
-						if (custonion) {
-							color = tintcolor;
+						if (tgpw->custonion) {
+							color = tgpw->tintcolor;
 						}
 						else {
-							ARRAY_SET_ITEMS(tfill, palcolor->fill[0], palcolor->fill[1], palcolor->fill[2],
-							                tintcolor[3]);
+							ARRAY_SET_ITEMS(tfill, UNPACK3(gp_style->fill_rgba), tgpw->tintcolor[3]);
 							color = tfill;
 						}
 					}
-					gp_draw_stroke_fill(gpd, gps, offsx, offsy, winx, winy, diff_mat, color);
+					gp_draw_stroke_fill(
+					        tgpw->gpd, gps,
+					        tgpw->offsx, tgpw->offsy, tgpw->winx, tgpw->winy, tgpw->diff_mat, color);
 				}
 			}
 
 			/* 2D Strokes... */
-			/* set color using palette, tint color and opacity */
-			if (!onion) {
-				interp_v3_v3v3(tcolor, palcolor->color, tintcolor, tintcolor[3]);
-				tcolor[3] = palcolor->color[3] * opacity;
+			/* set color using material, tint color and opacity */
+			if (!tgpw->onion) {
+				interp_v3_v3v3(tcolor, gp_style->stroke_rgba, tgpw->tintcolor, tgpw->tintcolor[3]);
+				tcolor[3] = gp_style->stroke_rgba[3] * tgpw->opacity;
 				copy_v4_v4(ink, tcolor);
 			}
 			else {
-				if (custonion) {
-					copy_v4_v4(ink, tintcolor);
+				if (tgpw->custonion) {
+					copy_v4_v4(ink, tgpw->tintcolor);
 				}
 				else {
-					ARRAY_SET_ITEMS(tcolor, palcolor->color[0], palcolor->color[1], palcolor->color[2], opacity);
+					ARRAY_SET_ITEMS(tcolor, UNPACK3(gp_style->stroke_rgba), tgpw->opacity);
 					copy_v4_v4(ink, tcolor);
 				}
 			}
-			if (palcolor->flag & PC_COLOR_VOLUMETRIC) {
+			if (gp_style->mode == GP_STYLE_MODE_DOTS) {
 				/* blob/disk-based "volumetric" drawing */
-				gp_draw_stroke_volumetric_2d(gps->points, gps->totpoints, sthickness, dflag, gps->flag,
-				                             offsx, offsy, winx, winy, diff_mat, ink);
+				gp_draw_stroke_volumetric_2d(
+				        gps->points, gps->totpoints, sthickness, tgpw->dflag, gps->flag,
+				        tgpw->offsx, tgpw->offsy, tgpw->winx, tgpw->winy, tgpw->diff_mat, ink);
 			}
 			else {
 				/* normal 2D strokes */
 				if (gps->totpoints == 1) {
-					gp_draw_stroke_point(gps->points, sthickness, dflag, gps->flag, offsx, offsy, winx, winy,
-					                     diff_mat, ink);
+					gp_draw_stroke_point(
+					        gps->points, sthickness, tgpw->dflag, gps->flag,
+					        tgpw->offsx, tgpw->offsy, tgpw->winx, tgpw->winy,
+					        tgpw->diff_mat, ink);
 				}
 				else {
-					gp_draw_stroke_2d(gps->points, gps->totpoints, sthickness, dflag, gps->flag, debug,
-					                  offsx, offsy, winx, winy, diff_mat, ink);
+					gp_draw_stroke_2d(
+					        gps->points, gps->totpoints, sthickness, tgpw->dflag, gps->flag, false,
+					        tgpw->offsx, tgpw->offsy, tgpw->winx, tgpw->winy, tgpw->diff_mat, ink);
 				}
 			}
 		}
@@ -1114,14 +1249,16 @@ static void gp_draw_strokes_edit(
 		if ((gps->flag & GP_STROKE_SELECT) == 0)
 			continue;
 
-		/* verify palette color lock */
+		/* verify color lock */
 		{
-			bGPDpalettecolor *palcolor = ED_gpencil_stroke_getcolor(gpd, gps);
-			if (palcolor != NULL) {
-				if (palcolor->flag & PC_COLOR_HIDE) {
+			Material *ma = gpd->mat[gps->mat_nr];
+			MaterialGPencilStyle *gp_style = ma->gp_style;
+
+			if (gp_style != NULL) {
+				if (gp_style->flag & GP_STYLE_COLOR_HIDE) {
 					continue;
 				}
-				if (((lflag & GP_LAYER_UNLOCK_COLOR) == 0) && (palcolor->flag & PC_COLOR_LOCKED)) {
+				if (((lflag & GP_LAYER_UNLOCK_COLOR) == 0) && (gp_style->flag & GP_STYLE_COLOR_LOCKED)) {
 					continue;
 				}
 			}
@@ -1143,28 +1280,29 @@ static void gp_draw_strokes_edit(
 		}
 
 		/* for now, we assume that the base color of the points is not too close to the real color */
-		/* set color using palette */
-		bGPDpalettecolor *palcolor = ED_gpencil_stroke_getcolor(gpd, gps);
+		/* set color using material */
+		Material *ma = gpd->mat[gps->mat_nr];
+		MaterialGPencilStyle *gp_style = ma->gp_style;
 
 		float selectColor[4];
 		UI_GetThemeColor3fv(TH_GP_VERTEX_SELECT, selectColor);
 		selectColor[3] = alpha;
 
-		Gwn_VertFormat *format = immVertexFormat();
+		GPUVertFormat *format = immVertexFormat();
 		uint pos; /* specified later */
-		uint size = GWN_vertformat_attr_add(format, "size", GWN_COMP_F32, 1, GWN_FETCH_FLOAT);
-		uint color = GWN_vertformat_attr_add(format, "color", GWN_COMP_F32, 3, GWN_FETCH_FLOAT);
+		uint size = GPU_vertformat_attr_add(format, "size", GPU_COMP_F32, 1, GPU_FETCH_FLOAT);
+		uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_U8, 3, GPU_FETCH_INT_TO_FLOAT_UNIT);
 
 		if (gps->flag & GP_STROKE_3DSPACE) {
-			pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT);
+			pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
 			immBindBuiltinProgram(GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR);
 		}
 		else {
-			pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
+			pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
 			immBindBuiltinProgram(GPU_SHADER_2D_POINT_VARYING_SIZE_VARYING_COLOR);
 		}
 
-		immBegin(GWN_PRIM_POINTS, gps->totpoints);
+		immBegin(GPU_PRIM_POINTS, gps->totpoints);
 
 		/* Draw start and end point differently if enabled stroke direction hint */
 		bool show_direction_hint = (gpd->flag & GP_DATA_SHOW_DIRECTION) && (gps->totpoints > 1);
@@ -1189,7 +1327,7 @@ static void gp_draw_strokes_edit(
 				immAttrib1f(size, vsize);
 			}
 			else {
-				immAttrib3fv(color, palcolor->color);
+				immAttrib3fv(color, gp_style->stroke_rgba);
 				immAttrib1f(size, bsize);
 			}
 
@@ -1229,98 +1367,75 @@ static void gp_draw_strokes_edit(
 
 /* ----- General Drawing ------ */
 
-/* draw onion-skinning for a layer */
-static void gp_draw_onionskins(
-        bGPdata *gpd, const bGPDlayer *gpl, const bGPDframe *gpf, int offsx, int offsy, int winx, int winy,
-        int UNUSED(cfra), int dflag, bool debug, const float diff_mat[4][4])
+
+/* draw interpolate strokes (used only while operator is running) */
+void ED_gp_draw_interpolation(const bContext *C, tGPDinterpolate *tgpi, const int type)
 {
-	const float default_color[3] = {UNPACK3(U.gpencil_new_layer_col)};
-	const float alpha = 1.0f;
+	tGPDdraw tgpw;
+	ARegion *ar = CTX_wm_region(C);
+	RegionView3D *rv3d = ar->regiondata;
+	tGPDinterpolate_layer *tgpil;
+	Object *obact = CTX_data_active_object(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+
 	float color[4];
 
-	/* 1) Draw Previous Frames First */
-	if (gpl->flag & GP_LAYER_GHOST_PREVCOL) {
-		copy_v3_v3(color, gpl->gcolor_prev);
-	}
-	else {
-		copy_v3_v3(color, default_color);
+	UI_GetThemeColor3fv(TH_GP_VERTEX_SELECT, color);
+	color[3] = 0.6f;
+	int dflag = 0;
+	/* if 3d stuff, enable flags */
+	if (type == REGION_DRAW_POST_VIEW) {
+		dflag |= (GP_DRAWDATA_ONLY3D | GP_DRAWDATA_NOSTATUS);
 	}
 
-	if (gpl->gstep > 0) {
-		/* draw previous frames first */
-		for (bGPDframe *gf = gpf->prev; gf; gf = gf->prev) {
-			/* check if frame is drawable */
-			if ((gpf->framenum - gf->framenum) <= gpl->gstep) {
-				/* alpha decreases with distance from curframe index */
-				float fac = 1.0f - ((float)(gpf->framenum - gf->framenum) / (float)(gpl->gstep + 1));
-				color[3] = alpha * fac * 0.66f;
-				gp_draw_strokes(gpd, gf, offsx, offsy, winx, winy, dflag, debug, gpl->thickness, 1.0f, color,
-				                true, gpl->flag & GP_LAYER_GHOST_PREVCOL, diff_mat);
-			}
-			else
-				break;
-		}
-	}
-	else if (gpl->gstep == 0) {
-		/* draw the strokes for the ghost frames (at half of the alpha set by user) */
-		if (gpf->prev) {
-			color[3] = (alpha / 7);
-			gp_draw_strokes(gpd, gpf->prev, offsx, offsy, winx, winy, dflag, debug, gpl->thickness, 1.0f, color,
-			                true, gpl->flag & GP_LAYER_GHOST_PREVCOL, diff_mat);
-		}
-	}
-	else {
-		/* don't draw - disabled */
-	}
+	tgpw.rv3d = rv3d;
+	tgpw.depsgraph = depsgraph;
+	tgpw.ob = obact;
+	tgpw.gpd = tgpi->gpd;
+	tgpw.offsx = 0;
+	tgpw.offsy = 0;
+	tgpw.winx = tgpi->ar->winx;
+	tgpw.winy = tgpi->ar->winy;
+	tgpw.dflag = dflag;
 
-	/* 2) Now draw next frames */
-	if (gpl->flag & GP_LAYER_GHOST_NEXTCOL) {
-		copy_v3_v3(color, gpl->gcolor_next);
-	}
-	else {
-		copy_v3_v3(color, default_color);
-	}
+	/* turn on alpha-blending */
+	glEnable(GL_BLEND);
+	for (tgpil = tgpi->ilayers.first; tgpil; tgpil = tgpil->next) {
+		/* calculate parent position */
+		ED_gpencil_parent_location(depsgraph, obact, tgpi->gpd, tgpil->gpl, tgpw.diff_mat);
+		if (tgpil->interFrame) {
+			tgpw.gpl = tgpil->gpl;
+			tgpw.gpf = tgpil->interFrame;
+			tgpw.t_gpf = tgpil->interFrame;
 
-	if (gpl->gstep_next > 0) {
-		/* now draw next frames */
-		for (bGPDframe *gf = gpf->next; gf; gf = gf->next) {
-			/* check if frame is drawable */
-			if ((gf->framenum - gpf->framenum) <= gpl->gstep_next) {
-				/* alpha decreases with distance from curframe index */
-				float fac = 1.0f - ((float)(gf->framenum - gpf->framenum) / (float)(gpl->gstep_next + 1));
-				color[3] = alpha * fac * 0.66f;
-				gp_draw_strokes(gpd, gf, offsx, offsy, winx, winy, dflag, debug, gpl->thickness, 1.0f, color,
-				                true, gpl->flag & GP_LAYER_GHOST_NEXTCOL, diff_mat);
-			}
-			else
-				break;
-		}
-	}
-	else if (gpl->gstep_next == 0) {
-		/* draw the strokes for the ghost frames (at half of the alpha set by user) */
-		if (gpf->next) {
-			color[3] = (alpha / 4);
-			gp_draw_strokes(gpd, gpf->next, offsx, offsy, winx, winy, dflag, debug, gpl->thickness, 1.0f, color,
-			                true, gpl->flag & GP_LAYER_GHOST_NEXTCOL, diff_mat);
+			tgpw.lthick = tgpil->gpl->line_change;
+			tgpw.opacity = 1.0;
+			copy_v4_v4(tgpw.tintcolor, color);
+			tgpw.onion = true;
+			tgpw.custonion = true;
+
+			gp_draw_strokes(&tgpw);
 		}
 	}
-	else {
-		/* don't draw - disabled */
-	}
+	glDisable(GL_BLEND);
 }
 
 /* draw interpolate strokes (used only while operator is running) */
-void ED_gp_draw_interpolation(tGPDinterpolate *tgpi, const int type)
+void ED_gp_draw_primitives(const bContext *C, tGPDprimitive *tgpi, const int type)
 {
-	tGPDinterpolate_layer *tgpil;
-	float diff_mat[4][4];
-	float color[4];
+	tGPDdraw tgpw;
+	ARegion *ar = CTX_wm_region(C);
+	RegionView3D *rv3d = ar->regiondata;
 
-	int offsx = 0;
-	int offsy = 0;
-	int winx = tgpi->ar->winx;
-	int winy = tgpi->ar->winy;
+	/* if idle, do not draw */
+	if (tgpi->flag == 0) {
+		return;
+	}
 
+	Object *obact = CTX_data_active_object(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);                                      \
+
+	float color[4];
 	UI_GetThemeColor3fv(TH_GP_VERTEX_SELECT, color);
 	color[3] = 0.6f;
 	int dflag = 0;
@@ -1329,32 +1444,71 @@ void ED_gp_draw_interpolation(tGPDinterpolate *tgpi, const int type)
 		dflag |= (GP_DRAWDATA_ONLY3D | GP_DRAWDATA_NOSTATUS);
 	}
 
+	tgpw.rv3d = rv3d;
+	tgpw.depsgraph = depsgraph;
+	tgpw.ob = obact;
+	tgpw.gpd = tgpi->gpd;
+	tgpw.offsx = 0;
+	tgpw.offsy = 0;
+	tgpw.winx = tgpi->ar->winx;
+	tgpw.winy = tgpi->ar->winy;
+	tgpw.dflag = dflag;
+
 	/* turn on alpha-blending */
 	GPU_blend(true);
-	for (tgpil = tgpi->ilayers.first; tgpil; tgpil = tgpil->next) {
-		/* calculate parent position */
-		ED_gpencil_parent_location(tgpil->gpl, diff_mat);
-		if (tgpil->interFrame) {
-			gp_draw_strokes(tgpi->gpd, tgpil->interFrame, offsx, offsy, winx, winy, dflag, false,
-				tgpil->gpl->thickness, 1.0f, color, true, true, diff_mat);
+	/* calculate parent position */
+	ED_gpencil_parent_location(depsgraph, obact, tgpi->gpd, tgpi->gpl, tgpw.diff_mat);
+	if (tgpi->gpf) {
+		tgpw.gps = tgpi->gpf->strokes.first;
+		if (tgpw.gps->totpoints > 0) {
+			tgpw.gpl = tgpi->gpl;
+			tgpw.gpf = tgpi->gpf;
+			tgpw.t_gpf = tgpi->gpf;
+
+			tgpw.lthick = tgpi->gpl->line_change;
+			tgpw.opacity = 1.0;
+			copy_v4_v4(tgpw.tintcolor, color);
+			tgpw.onion = true;
+			tgpw.custonion = true;
+
+			gp_draw_strokes(&tgpw);
 		}
 	}
 	GPU_blend(false);
 }
 
+/* wrapper to draw strokes for filling operator */
+void ED_gp_draw_fill(tGPDdraw *tgpw)
+{
+	gp_draw_strokes(tgpw);
+}
+
 /* loop over gpencil data layers, drawing them */
-static void gp_draw_data_layers(
-        const bGPDbrush *brush, float alpha, bGPdata *gpd,
+static void gp_draw_data_layers(RegionView3D *rv3d,
+        const Brush *brush, float alpha, Object *ob, bGPdata *gpd,
         int offsx, int offsy, int winx, int winy, int cfra, int dflag)
 {
 	float diff_mat[4][4];
+	tGPDdraw tgpw;
+
+	tgpw.rv3d = rv3d;
+	tgpw.depsgraph = NULL; /* XXX: This is not used here */
+	tgpw.ob = ob;
+	tgpw.gpd = gpd;
+	tgpw.gpl = NULL;
+	tgpw.gpf = NULL;
+	tgpw.t_gpf = NULL;
+	tgpw.offsx = offsx;
+	tgpw.offsy = offsy;
+	tgpw.winx = winx;
+	tgpw.winy = winy;
+	tgpw.dflag = dflag;
 
 	for (bGPDlayer *gpl = gpd->layers.first; gpl; gpl = gpl->next) {
 		/* calculate parent position */
-		ED_gpencil_parent_location(gpl, diff_mat);
+		ED_gpencil_parent_location(tgpw.depsgraph, ob, gpd, gpl, diff_mat);
 
-		bool debug = (gpl->flag & GP_LAYER_DRAWDEBUG);
-		short lthick = brush->thickness + gpl->thickness;
+		short lthick = brush->size + gpl->line_change;
 
 		/* don't draw layer if hidden */
 		if (gpl->flag & GP_LAYER_HIDE)
@@ -1383,30 +1537,20 @@ static void gp_draw_data_layers(
 		/* volumetric strokes... */
 		GP_DRAWFLAG_APPLY((gpl->flag & GP_LAYER_VOLUMETRIC), GP_DRAWDATA_VOLUMETRIC);
 
-		/* HQ fills... */
-		GP_DRAWFLAG_APPLY((gpl->flag & GP_LAYER_HQ_FILL), GP_DRAWDATA_HQ_FILL);
-
 #undef GP_DRAWFLAG_APPLY
 
-		/* Draw 'onionskins' (frame left + right)
-		 *   - It is only possible to show these if the option is enabled
-		 *   - The "no onions" flag prevents ghosts from appearing during animation playback/scrubbing
-		 *     and in renders
-		 *   - The per-layer "always show" flag however overrides the playback/render restriction,
-		 *     allowing artists to selectively turn onionskins on/off during playback
-		 */
-		if ((gpl->flag & GP_LAYER_ONIONSKIN) &&
-		    ((dflag & GP_DRAWDATA_NO_ONIONS) == 0 || (gpl->flag & GP_LAYER_GHOST_ALWAYS)))
-		{
-			/* Drawing method - only immediately surrounding (gstep = 0),
-			 * or within a frame range on either side (gstep > 0)
-			 */
-			gp_draw_onionskins(gpd, gpl, gpf, offsx, offsy, winx, winy, cfra, dflag, debug, diff_mat);
-		}
+		tgpw.gpl = gpl;
+		tgpw.gpf = gpf;
+		tgpw.t_gpf = gpf; // XXX?
+		tgpw.lthick = gpl->line_change;
+		tgpw.opacity = gpl->opacity;
+		copy_v4_v4(tgpw.tintcolor, gpl->tintcolor);
+		tgpw.onion = false;
+		tgpw.custonion = false;
+		copy_m4_m4(tgpw.diff_mat, diff_mat);
 
 		/* draw the strokes already in active frame */
-		gp_draw_strokes(gpd, gpf, offsx, offsy, winx, winy, dflag, debug, gpl->thickness,
-		                gpl->opacity, gpl->tintcolor, false, false, diff_mat);
+		gp_draw_strokes(&tgpw);
 
 		/* Draw verts of selected strokes
 		 *  - when doing OpenGL renders, we don't want to be showing these, as that ends up flickering
@@ -1435,19 +1579,25 @@ static void gp_draw_data_layers(
 			 * It should also be noted that sbuffer contains temporary point types
 			 * i.e. tGPspoints NOT bGPDspoints
 			 */
-			if (gpd->sflag & PC_COLOR_VOLUMETRIC) {
-				gp_draw_stroke_volumetric_buffer(gpd->sbuffer, gpd->sbuffer_size, lthick,
-				                                 dflag, gpd->scolor);
+			if (gpd->runtime.mode == GP_STYLE_MODE_DOTS) {
+				gp_draw_stroke_volumetric_buffer(
+				        gpd->runtime.sbuffer,
+				        gpd->runtime.sbuffer_size, lthick,
+				        dflag, gpd->runtime.scolor);
 			}
 			else {
-				gp_draw_stroke_buffer(gpd->sbuffer, gpd->sbuffer_size, lthick, dflag, gpd->sbuffer_sflag, gpd->scolor, gpd->sfill);
+				gp_draw_stroke_buffer(
+				        gpd->runtime.sbuffer,
+				        gpd->runtime.sbuffer_size, lthick,
+				        dflag, gpd->runtime.sbuffer_sflag,
+				        gpd->runtime.scolor, gpd->runtime.sfill);
 			}
 		}
 	}
 }
 
 /* draw a short status message in the top-right corner */
-static void gp_draw_status_text(const bGPdata *gpd, ARegion *ar)
+static void UNUSED_FUNCTION(gp_draw_status_text)(const bGPdata *gpd, ARegion *ar)
 {
 	rcti rect;
 
@@ -1493,8 +1643,8 @@ static void gp_draw_status_text(const bGPdata *gpd, ARegion *ar)
 }
 
 /* draw grease-pencil datablock */
-static void gp_draw_data(
-        const bGPDbrush *brush, float alpha, bGPdata *gpd,
+static void gp_draw_data(RegionView3D *rv3d,
+        const Brush *brush, float alpha, Object *ob, bGPdata *gpd,
         int offsx, int offsy, int winx, int winy, int cfra, int dflag)
 {
 	/* turn on smooth lines (i.e. anti-aliasing) */
@@ -1510,7 +1660,7 @@ static void gp_draw_data(
 	GPU_blend(true);
 
 	/* draw! */
-	gp_draw_data_layers(brush, alpha, gpd, offsx, offsy, winx, winy, cfra, dflag);
+	gp_draw_data_layers(rv3d, brush, alpha, ob, gpd, offsx, offsy, winx, winy, cfra, dflag);
 
 	/* turn off alpha blending, then smooth lines */
 	GPU_blend(false); // alpha blending
@@ -1519,33 +1669,22 @@ static void gp_draw_data(
 
 /* if we have strokes for scenes (3d view)/clips (movie clip editor)
  * and objects/tracks, multiple data blocks have to be drawn */
-static void gp_draw_data_all(Scene *scene, bGPdata *gpd, int offsx, int offsy, int winx, int winy,
-                             int cfra, int dflag, const char spacetype)
+static void gp_draw_data_all(
+        RegionView3D *rv3d, Scene *scene, bGPdata *gpd, int offsx, int offsy, int winx, int winy,
+        int cfra, int dflag, const char UNUSED(spacetype))
 {
 	bGPdata *gpd_source = NULL;
-	ToolSettings *ts;
-	bGPDbrush *brush = NULL;
+	ToolSettings *ts = NULL;
+	Brush *brush = NULL;
 	if (scene) {
 		ts = scene->toolsettings;
-		brush = BKE_gpencil_brush_getactive(ts);
-		/* if no brushes, create default set */
-		if (brush == NULL) {
-			BKE_gpencil_brush_init_presets(ts);
-			brush = BKE_gpencil_brush_getactive(ts);
-		}
-
-		if (spacetype == SPACE_VIEW3D) {
-			gpd_source = (scene->gpd ? scene->gpd : NULL);
-		}
-		else if (spacetype == SPACE_CLIP && scene->clip) {
-			/* currently drawing only gpencil data from either clip or track, but not both - XXX fix logic behind */
-			gpd_source = (scene->clip->gpd ? scene->clip->gpd : NULL);
-		}
+		brush = BKE_brush_getactive_gpencil(ts);
 
 		if (gpd_source) {
 			if (brush != NULL) {
-				gp_draw_data(brush, ts->gp_sculpt.alpha, gpd_source,
-				             offsx, offsy, winx, winy, cfra, dflag);
+				gp_draw_data(
+				        rv3d, brush, 1.0f, NULL, gpd_source,
+				        offsx, offsy, winx, winy, cfra, dflag);
 			}
 		}
 	}
@@ -1554,76 +1693,70 @@ static void gp_draw_data_all(Scene *scene, bGPdata *gpd, int offsx, int offsy, i
 	 * if gpd_source == gpd, we don't have any object/track data and we can skip */
 	if (gpd_source == NULL || (gpd_source && gpd_source != gpd)) {
 		if (brush != NULL) {
-			gp_draw_data(brush, ts->gp_sculpt.alpha, gpd,
-			             offsx, offsy, winx, winy, cfra, dflag);
+			gp_draw_data(
+			        rv3d, brush, 1.0f, NULL, gpd,
+			        offsx, offsy, winx, winy, cfra, dflag);
 		}
 	}
 }
 
 /* ----- Grease Pencil Sketches Drawing API ------ */
 
-/* ............................
- * XXX
- *	We need to review the calls below, since they may be/are not that suitable for
- *	the new ways that we intend to be drawing data...
- * ............................ */
 
-/* draw grease-pencil sketches to specified 2d-view that uses ibuf corrections */
-void ED_gpencil_draw_2dimage(const bContext *C)
+/* draw grease-pencil sketches to specified 3d-view assuming that matrices are already set correctly
+ * Note: this gets called twice - first time with only3d=true to draw 3d-strokes,
+ * second time with only3d=false for screen-aligned strokes */
+void ED_gpencil_draw_view3d(
+        wmWindowManager *wm,
+        Scene *scene,
+        ViewLayer *view_layer,
+        struct Depsgraph *depsgraph,
+        View3D *v3d,
+        ARegion *ar,
+        bool only3d)
 {
-	wmWindowManager *wm = CTX_wm_manager(C);
-	ScrArea *sa = CTX_wm_area(C);
-	ARegion *ar = CTX_wm_region(C);
-	Scene *scene = CTX_data_scene(C);
-
-	int offsx, offsy, sizex, sizey;
-	int dflag = GP_DRAWDATA_NOSTATUS;
+	int dflag = 0;
+	RegionView3D *rv3d = ar->regiondata;
+	int offsx,  offsy,  winx,  winy;
 
-	bGPdata *gpd = ED_gpencil_data_get_active(C); // XXX
+	/* check that we have grease-pencil stuff to draw */
+	// XXX: This is the only place that still uses this function
+	bGPdata *gpd = ED_gpencil_data_get_active_v3d(view_layer);
 	if (gpd == NULL) return;
 
-	/* calculate rect */
-	switch (sa->spacetype) {
-		case SPACE_IMAGE: /* image */
-		case SPACE_CLIP: /* clip */
-		{
-			/* just draw using standard scaling (settings here are currently ignored anyways) */
-			/* FIXME: the opengl poly-strokes don't draw at right thickness when done this way, so disabled */
-			offsx = 0;
-			offsy = 0;
-			sizex = ar->winx;
-			sizey = ar->winy;
+	/* when rendering to the offscreen buffer we don't want to
+	 * deal with the camera border, otherwise map the coords to the camera border. */
+	if ((rv3d->persp == RV3D_CAMOB) && !(G.f & G_RENDER_OGL)) {
+		rctf rectf;
+		ED_view3d_calc_camera_border(scene, depsgraph, ar, v3d, rv3d, &rectf, true); /* no shift */
+
+		offsx = round_fl_to_int(rectf.xmin);
+		offsy = round_fl_to_int(rectf.ymin);
+		winx  = round_fl_to_int(rectf.xmax - rectf.xmin);
+		winy  = round_fl_to_int(rectf.ymax - rectf.ymin);
+	}
+	else {
+		offsx = 0;
+		offsy = 0;
+		winx  = ar->winx;
+		winy  = ar->winy;
+	}
 
-			wmOrtho2(ar->v2d.cur.xmin, ar->v2d.cur.xmax, ar->v2d.cur.ymin, ar->v2d.cur.ymax);
+	/* set flags */
+	if (only3d) {
+		/* 3D strokes/3D space:
+		 * - only 3D space points
+		 * - don't status text either (as it's the wrong space)
+		 */
+		dflag |= (GP_DRAWDATA_ONLY3D | GP_DRAWDATA_NOSTATUS);
+	}
 
-			dflag |= GP_DRAWDATA_ONLYV2D | GP_DRAWDATA_IEDITHACK;
-			break;
-		}
-		case SPACE_SEQ: /* sequence */
-		{
-			/* just draw using standard scaling (settings here are currently ignored anyways) */
-			offsx = 0;
-			offsy = 0;
-			sizex = ar->winx;
-			sizey = ar->winy;
-
-			/* NOTE: I2D was used in 2.4x, but the old settings for that have been deprecated
-			 * and everything moved to standard View2d
-			 */
-			dflag |= GP_DRAWDATA_ONLYV2D;
-			break;
-		}
-		default: /* for spacetype not yet handled */
-			offsx = 0;
-			offsy = 0;
-			sizex = ar->winx;
-			sizey = ar->winy;
-
-			dflag |= GP_DRAWDATA_ONLYI2D;
-			break;
+	if (v3d->flag2 & V3D_RENDER_OVERRIDE) {
+		/* don't draw status text when "only render" flag is set */
+		dflag |= GP_DRAWDATA_NOSTATUS;
 	}
 
-	if (ED_screen_animation_playing(wm)) {
+	if ((wm == NULL) || ED_screen_animation_playing(wm)) {
 		/* don't show onionskins during animation playback/scrub (i.e. it obscures the poses)
 		 * OpenGL Renders (i.e. final output), or depth buffer (i.e. not real strokes)
 		 */
@@ -1631,85 +1764,46 @@ void ED_gpencil_draw_2dimage(const bContext *C)
 	}
 
 	/* draw it! */
-	gp_draw_data_all(scene, gpd, offsx, offsy, sizex, sizey, CFRA, dflag, sa->spacetype);
+	gp_draw_data_all(rv3d, scene, gpd, offsx, offsy, winx, winy, CFRA, dflag, v3d->spacetype);
 }
 
-/* draw grease-pencil sketches to specified 2d-view assuming that matrices are already set correctly
- * Note: this gets called twice - first time with onlyv2d=true to draw 'canvas' strokes,
- * second time with onlyv2d=false for screen-aligned strokes */
-void ED_gpencil_draw_view2d(const bContext *C, bool onlyv2d)
-{
-	wmWindowManager *wm = CTX_wm_manager(C);
-	ScrArea *sa = CTX_wm_area(C);
-	ARegion *ar = CTX_wm_region(C);
-	Scene *scene = CTX_data_scene(C);
-	int dflag = 0;
-
-	/* check that we have grease-pencil stuff to draw */
-	if (sa == NULL) return;
-	bGPdata *gpd = ED_gpencil_data_get_active(C); // XXX
-	if (gpd == NULL) return;
-
-	/* special hack for Image Editor */
-	/* FIXME: the opengl poly-strokes don't draw at right thickness when done this way, so disabled */
-	if (ELEM(sa->spacetype, SPACE_IMAGE, SPACE_CLIP))
-		dflag |= GP_DRAWDATA_IEDITHACK;
-
-	/* draw it! */
-	if (onlyv2d) dflag |= (GP_DRAWDATA_ONLYV2D | GP_DRAWDATA_NOSTATUS);
-	if (ED_screen_animation_playing(wm)) dflag |= GP_DRAWDATA_NO_ONIONS;
-
-	gp_draw_data_all(scene, gpd, 0, 0, ar->winx, ar->winy, CFRA, dflag, sa->spacetype);
-
-	/* draw status text (if in screen/pixel-space) */
-	if (!onlyv2d) {
-		gp_draw_status_text(gpd, ar);
-	}
-}
-
-/* draw grease-pencil sketches to specified 3d-view assuming that matrices are already set correctly
- * Note: this gets called twice - first time with only3d=true to draw 3d-strokes,
- * second time with only3d=false for screen-aligned strokes */
-void ED_gpencil_draw_view3d(wmWindowManager *wm,
-                            Scene *scene,
-                            ViewLayer *view_layer,
-                            struct Depsgraph *depsgraph,
-                            View3D *v3d,
-                            ARegion *ar,
-                            bool only3d)
+/* draw grease-pencil sketches to specified 3d-view for gp object
+ * assuming that matrices are already set correctly
+ */
+void ED_gpencil_draw_view3d_object(wmWindowManager *wm, Scene *scene, Depsgraph *depsgraph, Object *ob, View3D *v3d, ARegion *ar, bool only3d)
 {
 	int dflag = 0;
 	RegionView3D *rv3d = ar->regiondata;
-	int offsx,  offsy,  winx,  winy;
+	int offsx, offsy, winx, winy;
 
 	/* check that we have grease-pencil stuff to draw */
-	bGPdata *gpd = ED_gpencil_data_get_active_v3d(scene, view_layer);
+	bGPdata *gpd = ob->data;
 	if (gpd == NULL) return;
 
 	/* when rendering to the offscreen buffer we don't want to
-	 * deal with the camera border, otherwise map the coords to the camera border. */
+	* deal with the camera border, otherwise map the coords to the camera border. */
 	if ((rv3d->persp == RV3D_CAMOB) && !(G.f & G_RENDER_OGL)) {
 		rctf rectf;
 		ED_view3d_calc_camera_border(scene, depsgraph, ar, v3d, rv3d, &rectf, true); /* no shift */
 
 		offsx = round_fl_to_int(rectf.xmin);
 		offsy = round_fl_to_int(rectf.ymin);
-		winx  = round_fl_to_int(rectf.xmax - rectf.xmin);
-		winy  = round_fl_to_int(rectf.ymax - rectf.ymin);
+		winx = round_fl_to_int(rectf.xmax - rectf.xmin);
+		winy = round_fl_to_int(rectf.ymax - rectf.ymin);
 	}
 	else {
 		offsx = 0;
 		offsy = 0;
-		winx  = ar->winx;
-		winy  = ar->winy;
+		winx = ar->winx;
+		winy = ar->winy;
 	}
 
 	/* set flags */
 	if (only3d) {
 		/* 3D strokes/3D space:
-		 * - only 3D space points
-		 * - don't status text either (as it's the wrong space)
-		 */
+		* - only 3D space points
+		* - don't status text either (as it's the wrong space)
+		*/
 		dflag |= (GP_DRAWDATA_ONLY3D | GP_DRAWDATA_NOSTATUS);
 	}
 
@@ -1720,20 +1814,23 @@ void ED_gpencil_draw_view3d(wmWindowManager *wm,
 
 	if ((wm == NULL) || ED_screen_animation_playing(wm)) {
 		/* don't show onionskins during animation playback/scrub (i.e. it obscures the poses)
-		 * OpenGL Renders (i.e. final output), or depth buffer (i.e. not real strokes)
-		 */
+		* OpenGL Renders (i.e. final output), or depth buffer (i.e. not real strokes)
+		*/
 		dflag |= GP_DRAWDATA_NO_ONIONS;
 	}
 
 	/* draw it! */
-	gp_draw_data_all(scene, gpd, offsx, offsy, winx, winy, CFRA, dflag, v3d->spacetype);
+	ToolSettings *ts = scene->toolsettings;
+	Brush *brush = BKE_brush_getactive_gpencil(ts);
+	if (brush != NULL) {
+		gp_draw_data(rv3d, brush, 1.0f, ob, gpd,
+			offsx, offsy, winx, winy, CFRA, dflag);
+	}
 }
 
-void ED_gpencil_draw_ex(Scene *scene, bGPdata *gpd, int winx, int winy, const int cfra, const char spacetype)
+void ED_gpencil_draw_ex(RegionView3D *rv3d, Scene *scene, bGPdata *gpd, int winx, int winy, const int cfra, const char spacetype)
 {
 	int dflag = GP_DRAWDATA_NOSTATUS | GP_DRAWDATA_ONLYV2D;
 
-	gp_draw_data_all(scene, gpd, 0, 0, winx, winy, cfra, dflag, spacetype);
+	gp_draw_data_all(rv3d, scene, gpd, 0, 0, winx, winy, cfra, dflag, spacetype);
 }
-
-/* ************************************************** */
diff --git a/source/blender/editors/gpencil/editaction_gpencil.c b/source/blender/editors/gpencil/editaction_gpencil.c
index 5e62a87caf3..88f935eb8bf 100644
--- a/source/blender/editors/gpencil/editaction_gpencil.c
+++ b/source/blender/editors/gpencil/editaction_gpencil.c
@@ -492,6 +492,8 @@ bool ED_gpencil_anim_copybuf_paste(bAnimContext *ac, const short offset_mode)
 					/* make a copy of stroke, then of its points array */
 					gpsn = MEM_dupallocN(gps);
 					gpsn->points = MEM_dupallocN(gps->points);
+					gpsn->dvert = MEM_dupallocN(gps->dvert);
+					BKE_gpencil_stroke_weights_duplicate(gps, gpsn);
 					/* duplicate triangle information */
 					gpsn->triangles = MEM_dupallocN(gps->triangles);
 					/* append stroke to frame */
diff --git a/source/blender/editors/gpencil/gpencil_add_monkey.c b/source/blender/editors/gpencil/gpencil_add_monkey.c
new file mode 100644
index 00000000000..78286e3f672
--- /dev/null
+++ b/source/blender/editors/gpencil/gpencil_add_monkey.c
@@ -0,0 +1,1566 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2017 Blender Foundation
+ * This is a new part of Blender
+ *
+ * Contributor(s): Antonio Vazquez, Matias Mendiola
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/gpencil/gpencil_add_monkey.c
+ *  \ingroup edgpencil
+ */
+
+#include "BLI_blenlib.h"
+#include "BLI_math.h"
+#include "BLI_utildefines.h"
+
+#include "DNA_gpencil_types.h"
+#include "DNA_object_types.h"
+#include "DNA_scene_types.h"
+
+#include "BKE_context.h"
+#include "BKE_gpencil.h"
+#include "BKE_main.h"
+#include "BKE_material.h"
+
+#include "DEG_depsgraph.h"
+#include "DEG_depsgraph_query.h"
+
+#include "ED_gpencil.h"
+
+/* Definition of the most important info from a color */
+typedef struct ColorTemplate {
+	const char *name;
+	float line[4];
+	float fill[4];
+} ColorTemplate;
+
+/* Add color an ensure duplications (matched by name) */
+static int gpencil_monkey_color(Main *bmain, Object *ob, const ColorTemplate *pct)
+{
+	short *totcol = give_totcolp(ob);
+	Material *ma = NULL;
+	for (short i = 0; i < *totcol; i++) {
+		ma = give_current_material(ob, i + 1);
+		if (STREQ(ma->id.name, pct->name)) {
+			return i;
+		}
+	}
+
+	/* create a new one */
+	BKE_object_material_slot_add(bmain, ob);
+	ma = BKE_material_add_gpencil(bmain, pct->name);
+	assign_material(bmain, ob, ma, ob->totcol, BKE_MAT_ASSIGN_USERPREF);
+
+	copy_v4_v4(ma->gp_style->stroke_rgba, pct->line);
+	copy_v4_v4(ma->gp_style->fill_rgba, pct->fill);
+
+	return BKE_gpencil_get_material_index(ob, ma) - 1;
+}
+
+/* ***************************************************************** */
+/* Monkey Geometry */
+
+static const float data0[538 * GP_PRIM_DATABUF_SIZE] = {
+	-0.509f, 0.0f, -0.156f, 0.267f, 0.362f, -0.522f, 0.0f, -0.159f, 0.31f, 0.407f, -0.531f, 0.0f, -0.16f, 0.347f, 0.426f, -0.543f, -0.0f, -0.162f, 0.38f, 0.439f,
+	-0.554f, -0.0f, -0.163f, 0.409f, 0.448f, -0.566f, -0.0f, -0.165f, 0.433f, 0.458f, -0.578f, -0.0f, -0.167f, 0.454f, 0.478f, -0.591f, -0.0f, -0.168f, 0.471f, 0.5f,
+	-0.604f, -0.0f, -0.169f, 0.485f, 0.51f, -0.619f, -0.0f, -0.171f, 0.496f, 0.516f, -0.634f, -0.0f, -0.171f, 0.504f, 0.519f, -0.649f, -0.0f, -0.171f, 0.511f, 0.519f,
+	-0.665f, -0.0f, -0.17f, 0.516f, 0.521f, -0.681f, -0.0f, -0.17f, 0.521f, 0.53f, -0.697f, -0.0f, -0.169f, 0.524f, 0.533f, -0.713f, -0.0f, -0.167f, 0.527f, 0.533f,
+	-0.729f, 0.0f, -0.165f, 0.53f, 0.534f, -0.745f, 0.0f, -0.161f, 0.531f, 0.534f, -0.761f, 0.0f, -0.157f, 0.533f, 0.535f, -0.777f, 0.0f, -0.153f, 0.534f, 0.535f,
+	-0.792f, 0.0f, -0.148f, 0.535f, 0.536f, -0.808f, 0.0f, -0.144f, 0.535f, 0.535f, -0.822f, 0.0f, -0.139f, 0.536f, 0.537f, -0.837f, 0.0f, -0.133f, 0.536f, 0.537f,
+	-0.852f, 0.0f, -0.128f, 0.536f, 0.537f, -0.866f, 0.0f, -0.122f, 0.536f, 0.537f, -0.88f, 0.0f, -0.115f, 0.536f, 0.537f, -0.894f, 0.0f, -0.109f, 0.536f, 0.537f,
+	-0.908f, 0.0f, -0.101f, 0.535f, 0.535f, -0.922f, 0.0f, -0.092f, 0.535f, 0.535f, -0.936f, 0.0f, -0.082f, 0.534f, 0.534f, -0.949f, 0.0f, -0.072f, 0.534f, 0.534f,
+	-0.963f, 0.0f, -0.061f, 0.534f, 0.534f, -0.976f, 0.0f, -0.05f, 0.534f, 0.534f, -0.988f, 0.0f, -0.039f, 0.534f, 0.534f, -1.0f, 0.0f, -0.028f, 0.533f, 0.534f,
+	-1.011f, 0.0f, -0.017f, 0.533f, 0.533f, -1.022f, 0.0f, -0.007f, 0.533f, 0.534f, -1.033f, 0.0f, 0.004f, 0.533f, 0.533f, -1.043f, 0.0f, 0.014f, 0.532f, 0.532f,
+	-1.053f, 0.0f, 0.025f, 0.532f, 0.532f, -1.062f, 0.0f, 0.036f, 0.531f, 0.531f, -1.071f, 0.0f, 0.046f, 0.531f, 0.531f, -1.078f, 0.0f, 0.057f, 0.531f, 0.531f,
+	-1.085f, 0.0f, 0.068f, 0.531f, 0.531f, -1.092f, 0.0f, 0.08f, 0.532f, 0.532f, -1.098f, 0.0f, 0.091f, 0.533f, 0.533f, -1.104f, 0.0f, 0.105f, 0.535f, 0.535f,
+	-1.11f, 0.0f, 0.119f, 0.539f, 0.539f, -1.115f, 0.0f, 0.133f, 0.54f, 0.54f, -1.118f, 0.0f, 0.148f, 0.541f, 0.541f, -1.121f, 0.0f, 0.162f, 0.542f, 0.542f,
+	-1.123f, 0.0f, 0.177f, 0.542f, 0.542f, -1.125f, 0.0f, 0.193f, 0.543f, 0.543f, -1.125f, 0.0f, 0.208f, 0.543f, 0.543f, -1.125f, 0.0f, 0.225f, 0.543f, 0.543f,
+	-1.124f, 0.0f, 0.241f, 0.545f, 0.545f, -1.122f, 0.0f, 0.258f, 0.546f, 0.546f, -1.119f, 0.0f, 0.274f, 0.548f, 0.548f, -1.116f, 0.0f, 0.29f, 0.549f, 0.549f,
+	-1.111f, 0.0f, 0.305f, 0.549f, 0.549f, -1.106f, 0.0f, 0.318f, 0.549f, 0.549f, -1.1f, 0.0f, 0.33f, 0.549f, 0.549f, -1.094f, 0.0f, 0.34f, 0.549f, 0.549f,
+	-1.087f, 0.0f, 0.349f, 0.55f, 0.55f, -1.08f, 0.0f, 0.357f, 0.549f, 0.549f, -1.072f, 0.0f, 0.365f, 0.55f, 0.55f, -1.063f, 0.0f, 0.372f, 0.551f, 0.551f,
+	-1.054f, 0.0f, 0.379f, 0.552f, 0.552f, -1.044f, 0.0f, 0.385f, 0.553f, 0.553f, -1.034f, 0.0f, 0.391f, 0.553f, 0.553f, -1.024f, 0.0f, 0.396f, 0.554f, 0.554f,
+	-1.013f, 0.0f, 0.401f, 0.554f, 0.554f, -1.003f, 0.0f, 0.405f, 0.554f, 0.554f, -0.991f, 0.0f, 0.409f, 0.554f, 0.554f, -0.978f, 0.0f, 0.412f, 0.555f, 0.555f,
+	-0.964f, -0.0f, 0.414f, 0.555f, 0.555f, -0.949f, -0.0f, 0.414f, 0.556f, 0.556f, -0.934f, -0.0f, 0.413f, 0.556f, 0.556f, -0.919f, -0.0f, 0.412f, 0.557f, 0.557f,
+	-0.905f, -0.0f, 0.41f, 0.557f, 0.557f, -0.892f, -0.0f, 0.406f, 0.557f, 0.557f, -0.879f, -0.0f, 0.402f, 0.557f, 0.558f, -0.867f, -0.0f, 0.398f, 0.557f, 0.557f,
+	-0.855f, -0.0f, 0.394f, 0.557f, 0.557f, -0.843f, -0.0f, 0.388f, 0.557f, 0.557f, -0.831f, -0.0f, 0.381f, 0.558f, 0.557f, -0.82f, -0.0f, 0.375f, 0.558f, 0.557f,
+	-0.81f, -0.0f, 0.368f, 0.558f, 0.558f, -0.801f, -0.0f, 0.362f, 0.558f, 0.558f, -0.793f, -0.0f, 0.357f, 0.557f, 0.559f, -0.784f, 0.0f, 0.353f, 0.557f, 0.559f,
+	-0.776f, 0.0f, 0.35f, 0.556f, 0.559f, -0.768f, 0.0f, 0.348f, 0.556f, 0.559f, -0.76f, 0.0f, 0.346f, 0.555f, 0.559f, -0.752f, 0.0f, 0.346f, 0.554f, 0.559f,
+	-0.744f, 0.0f, 0.347f, 0.553f, 0.554f, -0.737f, 0.0f, 0.348f, 0.552f, 0.548f, -0.729f, 0.0f, 0.351f, 0.551f, 0.544f, -0.723f, 0.0f, 0.355f, 0.551f, 0.546f,
+	-0.716f, 0.0f, 0.36f, 0.55f, 0.546f, -0.709f, 0.0f, 0.366f, 0.55f, 0.547f, -0.702f, 0.0f, 0.372f, 0.549f, 0.547f, -0.696f, 0.0f, 0.379f, 0.549f, 0.547f,
+	-0.689f, 0.0f, 0.386f, 0.549f, 0.548f, -0.683f, 0.0f, 0.394f, 0.549f, 0.548f, -0.676f, 0.0f, 0.403f, 0.549f, 0.549f, -0.67f, 0.0f, 0.413f, 0.549f, 0.548f,
+	-0.664f, 0.0f, 0.422f, 0.549f, 0.549f, -0.658f, 0.0f, 0.432f, 0.55f, 0.549f, -0.652f, 0.0f, 0.441f, 0.551f, 0.548f, -0.646f, 0.0f, 0.451f, 0.552f, 0.548f,
+	-0.639f, 0.0f, 0.46f, 0.554f, 0.548f, -0.632f, 0.0f, 0.469f, 0.556f, 0.549f, -0.624f, 0.0f, 0.478f, 0.559f, 0.549f, -0.616f, 0.0f, 0.487f, 0.563f, 0.549f,
+	-0.609f, 0.0f, 0.497f, 0.567f, 0.549f, -0.6f, 0.0f, 0.507f, 0.572f, 0.558f, -0.592f, 0.0f, 0.518f, 0.577f, 0.574f, -0.584f, 0.0f, 0.528f, 0.582f, 0.587f,
+	-0.575f, 0.0f, 0.538f, 0.586f, 0.592f, -0.566f, 0.0f, 0.548f, 0.591f, 0.595f, -0.556f, 0.0f, 0.557f, 0.594f, 0.597f, -0.546f, 0.0f, 0.567f, 0.597f, 0.598f,
+	-0.536f, 0.0f, 0.577f, 0.6f, 0.6f, -0.525f, 0.0f, 0.586f, 0.602f, 0.603f, -0.514f, 0.0f, 0.596f, 0.604f, 0.605f, -0.503f, 0.0f, 0.606f, 0.605f, 0.606f,
+	-0.492f, 0.0f, 0.615f, 0.606f, 0.607f, -0.482f, 0.0f, 0.624f, 0.607f, 0.607f, -0.471f, 0.0f, 0.632f, 0.608f, 0.607f, -0.462f, 0.0f, 0.64f, 0.609f, 0.607f,
+	-0.453f, 0.0f, 0.647f, 0.61f, 0.61f, -0.444f, 0.0f, 0.654f, 0.612f, 0.611f, -0.435f, 0.0f, 0.66f, 0.614f, 0.613f, -0.427f, 0.0f, 0.666f, 0.616f, 0.615f,
+	-0.418f, 0.0f, 0.672f, 0.617f, 0.618f, -0.409f, 0.0f, 0.677f, 0.619f, 0.621f, -0.399f, 0.0f, 0.683f, 0.621f, 0.622f, -0.389f, 0.0f, 0.69f, 0.623f, 0.623f,
+	-0.379f, 0.0f, 0.696f, 0.624f, 0.624f, -0.368f, 0.0f, 0.702f, 0.626f, 0.626f, -0.356f, 0.0f, 0.708f, 0.628f, 0.628f, -0.345f, 0.0f, 0.713f, 0.63f, 0.63f,
+	-0.333f, 0.0f, 0.719f, 0.633f, 0.631f, -0.32f, 0.0f, 0.724f, 0.637f, 0.632f, -0.307f, 0.0f, 0.729f, 0.641f, 0.64f, -0.294f, 0.0f, 0.732f, 0.646f, 0.644f,
+	-0.281f, 0.0f, 0.736f, 0.65f, 0.655f, -0.268f, 0.0f, 0.739f, 0.654f, 0.657f, -0.255f, 0.0f, 0.742f, 0.657f, 0.658f, -0.243f, 0.0f, 0.745f, 0.659f, 0.661f,
+	-0.23f, 0.0f, 0.747f, 0.662f, 0.663f, -0.217f, 0.0f, 0.75f, 0.664f, 0.664f, -0.203f, 0.0f, 0.753f, 0.666f, 0.666f, -0.19f, 0.0f, 0.755f, 0.667f, 0.668f,
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+	-0.026f, 0.0f, -1.01f, 0.492f, 0.493f, -0.041f, 0.0f, -1.008f, 0.492f, 0.492f, -0.056f, 0.0f, -1.006f, 0.492f, 0.492f, -0.07f, 0.0f, -1.004f, 0.491f, 0.492f,
+	-0.084f, 0.0f, -1.001f, 0.491f, 0.492f, -0.098f, 0.0f, -0.999f, 0.491f, 0.491f, -0.112f, 0.0f, -0.995f, 0.491f, 0.49f, -0.125f, 0.0f, -0.992f, 0.49f, 0.49f,
+	-0.138f, 0.0f, -0.987f, 0.49f, 0.491f, -0.15f, 0.0f, -0.983f, 0.49f, 0.49f, -0.162f, 0.0f, -0.978f, 0.49f, 0.49f, -0.174f, 0.0f, -0.973f, 0.489f, 0.489f,
+	-0.185f, 0.0f, -0.967f, 0.489f, 0.488f, -0.196f, 0.0f, -0.961f, 0.489f, 0.489f, -0.207f, 0.0f, -0.955f, 0.489f, 0.489f, -0.218f, 0.0f, -0.949f, 0.489f, 0.49f,
+	-0.229f, 0.0f, -0.943f, 0.489f, 0.489f, -0.24f, 0.0f, -0.936f, 0.489f, 0.489f, -0.25f, 0.0f, -0.929f, 0.489f, 0.489f, -0.261f, 0.0f, -0.922f, 0.489f, 0.489f,
+	-0.271f, 0.0f, -0.914f, 0.489f, 0.49f, -0.28f, 0.0f, -0.907f, 0.49f, 0.49f, -0.289f, 0.0f, -0.898f, 0.49f, 0.489f, -0.298f, 0.0f, -0.89f, 0.49f, 0.489f,
+	-0.306f, 0.0f, -0.882f, 0.49f, 0.49f, -0.314f, 0.0f, -0.875f, 0.491f, 0.489f, -0.322f, 0.0f, -0.866f, 0.492f, 0.489f, -0.328f, 0.0f, -0.857f, 0.492f, 0.489f,
+	-0.333f, 0.0f, -0.847f, 0.493f, 0.49f, -0.336f, 0.0f, -0.836f, 0.494f, 0.488f, -0.338f, 0.0f, -0.824f, 0.496f, 0.49f, -0.338f, 0.0f, -0.811f, 0.497f, 0.49f,
+	-0.338f, 0.0f, -0.798f, 0.499f, 0.491f, -0.337f, 0.0f, -0.785f, 0.501f, 0.497f, -0.337f, 0.0f, -0.772f, 0.503f, 0.5f, -0.337f, 0.0f, -0.759f, 0.505f, 0.504f,
+	-0.336f, -0.0f, -0.746f, 0.507f, 0.505f, -0.336f, -0.0f, -0.733f, 0.51f, 0.51f, -0.335f, -0.0f, -0.719f, 0.512f, 0.513f, -0.334f, -0.0f, -0.706f, 0.515f, 0.515f,
+	-0.333f, -0.0f, -0.692f, 0.518f, 0.516f, -0.332f, -0.0f, -0.678f, 0.52f, 0.522f, -0.331f, -0.0f, -0.665f, 0.523f, 0.523f, -0.329f, -0.0f, -0.651f, 0.525f, 0.528f,
+	-0.327f, -0.0f, -0.637f, 0.528f, 0.53f, -0.325f, -0.0f, -0.624f, 0.53f, 0.532f, -0.322f, -0.0f, -0.61f, 0.532f, 0.534f, -0.319f, -0.0f, -0.597f, 0.535f, 0.535f,
+	-0.316f, -0.0f, -0.584f, 0.537f, 0.538f, -0.313f, -0.0f, -0.57f, 0.539f, 0.54f, -0.31f, -0.0f, -0.557f, 0.541f, 0.542f, -0.307f, -0.0f, -0.544f, 0.542f, 0.545f,
+	-0.303f, -0.0f, -0.531f, 0.544f, 0.546f, -0.3f, -0.0f, -0.519f, 0.546f, 0.549f, -0.298f, -0.0f, -0.506f, 0.547f, 0.549f, -0.295f, -0.0f, -0.494f, 0.548f, 0.549f,
+	-0.292f, -0.0f, -0.482f, 0.549f, 0.55f, -0.29f, -0.0f, -0.47f, 0.55f, 0.552f, -0.287f, -0.0f, -0.459f, 0.551f, 0.552f, -0.285f, -0.0f, -0.447f, 0.551f, 0.552f,
+	-0.284f, -0.0f, -0.436f, 0.552f, 0.552f, -0.282f, -0.0f, -0.425f, 0.552f, 0.553f, -0.281f, -0.0f, -0.413f, 0.553f, 0.553f, -0.28f, -0.0f, -0.402f, 0.553f, 0.553f,
+	-0.28f, -0.0f, -0.392f, 0.553f, 0.553f, -0.281f, -0.0f, -0.381f, 0.554f, 0.553f, -0.283f, -0.0f, -0.369f, 0.554f, 0.554f, -0.286f, -0.0f, -0.359f, 0.554f, 0.554f,
+	-0.289f, -0.0f, -0.348f, 0.555f, 0.554f, -0.294f, -0.0f, -0.337f, 0.555f, 0.555f, -0.299f, -0.0f, -0.327f, 0.555f, 0.554f, -0.305f, -0.0f, -0.317f, 0.556f, 0.555f,
+	-0.312f, -0.0f, -0.307f, 0.556f, 0.555f, -0.319f, -0.0f, -0.297f, 0.556f, 0.557f, -0.326f, 0.0f, -0.287f, 0.557f, 0.558f, -0.334f, 0.0f, -0.278f, 0.557f, 0.557f,
+	-0.341f, 0.0f, -0.268f, 0.557f, 0.558f, -0.349f, 0.0f, -0.259f, 0.558f, 0.558f, -0.359f, 0.0f, -0.251f, 0.558f, 0.558f, -0.368f, 0.0f, -0.243f, 0.558f, 0.558f,
+	-0.378f, 0.0f, -0.235f, 0.558f, 0.559f, -0.388f, 0.0f, -0.228f, 0.558f, 0.558f, -0.398f, 0.0f, -0.221f, 0.559f, 0.559f, -0.408f, 0.0f, -0.214f, 0.559f, 0.559f,
+	-0.418f, 0.0f, -0.208f, 0.559f, 0.559f, -0.427f, 0.0f, -0.202f, 0.559f, 0.558f, -0.436f, 0.0f, -0.196f, 0.559f, 0.559f, -0.445f, 0.0f, -0.191f, 0.559f, 0.559f,
+	-0.453f, 0.0f, -0.187f, 0.558f, 0.559f, -0.462f, 0.0f, -0.183f, 0.558f, 0.558f, -0.469f, 0.0f, -0.18f, 0.558f, 0.558f, -0.477f, 0.0f, -0.176f, 0.558f, 0.558f,
+	-0.484f, 0.0f, -0.174f, 0.557f, 0.558f, -0.493f, 0.0f, -0.17f, 0.555f, 0.559f,
+};
+
+
+static const float data1[136 * GP_PRIM_DATABUF_SIZE] = {
+	-0.369f, 0.0f, -0.048f, 0.065f, 0.065f, -0.378f, 0.0f, -0.046f, 0.239f, 0.293f, -0.383f, 0.0f, -0.044f, 0.316f, 0.339f, -0.39f, 0.0f, -0.041f, 0.348f, 0.355f,
+	-0.398f, 0.0f, -0.038f, 0.364f, 0.368f, -0.405f, 0.0f, -0.035f, 0.373f, 0.374f, -0.413f, 0.0f, -0.031f, 0.381f, 0.381f, -0.421f, 0.0f, -0.026f, 0.388f, 0.391f,
+	-0.429f, 0.0f, -0.02f, 0.392f, 0.394f, -0.437f, 0.0f, -0.014f, 0.395f, 0.396f, -0.445f, 0.0f, -0.008f, 0.397f, 0.397f, -0.453f, 0.0f, -0.001f, 0.399f, 0.4f,
+	-0.461f, 0.0f, 0.007f, 0.401f, 0.401f, -0.468f, -0.0f, 0.016f, 0.404f, 0.404f, -0.474f, 0.0f, 0.023f, 0.406f, 0.407f, -0.479f, 0.0f, 0.03f, 0.409f, 0.409f,
+	-0.485f, 0.0f, 0.039f, 0.412f, 0.412f, -0.49f, 0.0f, 0.048f, 0.415f, 0.415f, -0.495f, 0.0f, 0.057f, 0.417f, 0.417f, -0.499f, 0.0f, 0.068f, 0.42f, 0.421f,
+	-0.503f, 0.0f, 0.079f, 0.421f, 0.421f, -0.507f, -0.0f, 0.091f, 0.423f, 0.423f, -0.51f, -0.0f, 0.102f, 0.424f, 0.424f, -0.513f, -0.0f, 0.112f, 0.424f, 0.425f,
+	-0.515f, -0.0f, 0.123f, 0.425f, 0.425f, -0.517f, -0.0f, 0.135f, 0.425f, 0.425f, -0.518f, -0.0f, 0.146f, 0.426f, 0.425f, -0.519f, -0.0f, 0.158f, 0.426f, 0.425f,
+	-0.52f, -0.0f, 0.169f, 0.426f, 0.426f, -0.52f, -0.0f, 0.181f, 0.427f, 0.427f, -0.519f, -0.0f, 0.192f, 0.427f, 0.427f, -0.518f, -0.0f, 0.203f, 0.427f, 0.427f,
+	-0.517f, -0.0f, 0.213f, 0.427f, 0.428f, -0.515f, -0.0f, 0.222f, 0.428f, 0.427f, -0.513f, -0.0f, 0.232f, 0.428f, 0.427f, -0.51f, -0.0f, 0.241f, 0.429f, 0.427f,
+	-0.508f, -0.0f, 0.25f, 0.43f, 0.428f, -0.505f, -0.0f, 0.259f, 0.431f, 0.431f, -0.501f, -0.0f, 0.267f, 0.431f, 0.432f, -0.497f, -0.0f, 0.276f, 0.432f, 0.433f,
+	-0.493f, -0.0f, 0.284f, 0.433f, 0.433f, -0.488f, -0.0f, 0.293f, 0.434f, 0.434f, -0.484f, -0.0f, 0.301f, 0.434f, 0.435f, -0.479f, -0.0f, 0.308f, 0.435f, 0.436f,
+	-0.474f, -0.0f, 0.316f, 0.435f, 0.435f, -0.468f, -0.0f, 0.322f, 0.436f, 0.436f, -0.463f, -0.0f, 0.329f, 0.436f, 0.436f, -0.457f, -0.0f, 0.335f, 0.436f, 0.436f,
+	-0.451f, -0.0f, 0.341f, 0.437f, 0.436f, -0.445f, -0.0f, 0.347f, 0.438f, 0.437f, -0.438f, -0.0f, 0.352f, 0.44f, 0.437f, -0.432f, -0.0f, 0.357f, 0.442f, 0.441f,
+	-0.426f, 0.0f, 0.362f, 0.444f, 0.446f, -0.419f, 0.0f, 0.366f, 0.445f, 0.447f, -0.413f, 0.0f, 0.369f, 0.446f, 0.447f, -0.407f, 0.0f, 0.373f, 0.446f, 0.447f,
+	-0.401f, 0.0f, 0.376f, 0.447f, 0.447f, -0.395f, 0.0f, 0.378f, 0.447f, 0.448f, -0.388f, 0.0f, 0.381f, 0.447f, 0.448f, -0.382f, 0.0f, 0.383f, 0.448f, 0.448f,
+	-0.375f, 0.0f, 0.384f, 0.448f, 0.448f, -0.369f, 0.0f, 0.386f, 0.448f, 0.448f, -0.362f, 0.0f, 0.387f, 0.448f, 0.448f, -0.355f, 0.0f, 0.388f, 0.448f, 0.448f,
+	-0.348f, 0.0f, 0.388f, 0.448f, 0.448f, -0.341f, 0.0f, 0.387f, 0.448f, 0.449f, -0.334f, 0.0f, 0.387f, 0.448f, 0.448f, -0.327f, 0.0f, 0.386f, 0.448f, 0.449f,
+	-0.32f, 0.0f, 0.384f, 0.449f, 0.449f, -0.313f, 0.0f, 0.382f, 0.449f, 0.449f, -0.307f, 0.0f, 0.38f, 0.449f, 0.449f, -0.3f, 0.0f, 0.377f, 0.449f, 0.45f,
+	-0.294f, 0.0f, 0.375f, 0.45f, 0.45f, -0.288f, -0.0f, 0.372f, 0.45f, 0.45f, -0.282f, -0.0f, 0.368f, 0.45f, 0.451f, -0.276f, -0.0f, 0.365f, 0.45f, 0.451f,
+	-0.27f, -0.0f, 0.361f, 0.45f, 0.451f, -0.264f, -0.0f, 0.357f, 0.45f, 0.451f, -0.258f, -0.0f, 0.352f, 0.45f, 0.45f, -0.251f, -0.0f, 0.347f, 0.45f, 0.451f,
+	-0.245f, -0.0f, 0.341f, 0.451f, 0.451f, -0.24f, -0.0f, 0.335f, 0.451f, 0.451f, -0.234f, -0.0f, 0.329f, 0.451f, 0.451f, -0.228f, -0.0f, 0.323f, 0.452f, 0.452f,
+	-0.223f, -0.0f, 0.316f, 0.452f, 0.453f, -0.218f, -0.0f, 0.309f, 0.452f, 0.453f, -0.213f, -0.0f, 0.301f, 0.453f, 0.453f, -0.208f, -0.0f, 0.294f, 0.453f, 0.453f,
+	-0.204f, -0.0f, 0.286f, 0.453f, 0.453f, -0.2f, -0.0f, 0.277f, 0.453f, 0.454f, -0.196f, -0.0f, 0.269f, 0.453f, 0.454f, -0.192f, -0.0f, 0.26f, 0.454f, 0.454f,
+	-0.189f, -0.0f, 0.25f, 0.454f, 0.454f, -0.186f, -0.0f, 0.241f, 0.454f, 0.455f, -0.183f, -0.0f, 0.231f, 0.454f, 0.455f, -0.181f, -0.0f, 0.221f, 0.454f, 0.455f,
+	-0.179f, -0.0f, 0.209f, 0.455f, 0.455f, -0.177f, -0.0f, 0.197f, 0.455f, 0.455f, -0.176f, -0.0f, 0.184f, 0.455f, 0.455f, -0.176f, -0.0f, 0.171f, 0.455f, 0.456f,
+	-0.176f, -0.0f, 0.158f, 0.455f, 0.456f, -0.177f, -0.0f, 0.145f, 0.455f, 0.456f, -0.178f, -0.0f, 0.132f, 0.455f, 0.456f, -0.18f, -0.0f, 0.12f, 0.456f, 0.456f,
+	-0.182f, -0.0f, 0.108f, 0.456f, 0.456f, -0.185f, -0.0f, 0.097f, 0.456f, 0.456f, -0.188f, -0.0f, 0.086f, 0.456f, 0.457f, -0.191f, -0.0f, 0.076f, 0.456f, 0.457f,
+	-0.194f, -0.0f, 0.067f, 0.457f, 0.457f, -0.198f, -0.0f, 0.058f, 0.457f, 0.457f, -0.202f, -0.0f, 0.05f, 0.457f, 0.457f, -0.206f, -0.0f, 0.042f, 0.457f, 0.457f,
+	-0.21f, -0.0f, 0.034f, 0.458f, 0.457f, -0.215f, -0.0f, 0.027f, 0.458f, 0.457f, -0.22f, -0.0f, 0.02f, 0.458f, 0.458f, -0.225f, -0.0f, 0.014f, 0.458f, 0.458f,
+	-0.23f, -0.0f, 0.007f, 0.458f, 0.458f, -0.235f, -0.0f, 0.002f, 0.459f, 0.458f, -0.24f, -0.0f, -0.004f, 0.459f, 0.458f, -0.246f, -0.0f, -0.009f, 0.46f, 0.459f,
+	-0.251f, 0.0f, -0.013f, 0.464f, 0.463f, -0.257f, 0.0f, -0.018f, 0.467f, 0.468f, -0.262f, 0.0f, -0.022f, 0.469f, 0.469f, -0.268f, 0.0f, -0.026f, 0.471f, 0.47f,
+	-0.274f, 0.0f, -0.029f, 0.477f, 0.478f, -0.28f, 0.0f, -0.033f, 0.478f, 0.478f, -0.286f, 0.0f, -0.036f, 0.478f, 0.478f, -0.292f, 0.0f, -0.038f, 0.479f, 0.479f,
+	-0.298f, 0.0f, -0.041f, 0.48f, 0.48f, -0.305f, 0.0f, -0.043f, 0.48f, 0.48f, -0.311f, 0.0f, -0.045f, 0.482f, 0.482f, -0.318f, 0.0f, -0.047f, 0.482f, 0.482f,
+	-0.324f, 0.0f, -0.048f, 0.482f, 0.482f, -0.331f, 0.0f, -0.049f, 0.48f, 0.482f, -0.336f, 0.0f, -0.05f, 0.457f, 0.485f, -0.344f, 0.0f, -0.05f, 0.32f, 0.32f,
+};
+
+static const float data2[2 * GP_PRIM_DATABUF_SIZE] = {
+	-0.512f, 0.0f, -0.168f, 0.545f, 0.557f, -0.521f, 0.0f, -0.167f, 0.535f, 0.558f,
+};
+
+static const float data3[1 * GP_PRIM_DATABUF_SIZE] = {
+	-1.014f, 0.0f, 0.186f, 0.0f, 0.003f,
+};
+
+static const float data4[1 * GP_PRIM_DATABUF_SIZE] = {
+	-1.014f, 0.0f, 0.186f, 0.02f, 0.02f,
+};
+
+static const float data5[48 * GP_PRIM_DATABUF_SIZE] = {
+	-1.014f, 0.0f, 0.187f, 0.066f, 0.066f, -1.013f, 0.0f, 0.2f, 0.222f, 0.356f, -1.01f, 0.0f, 0.208f, 0.295f, 0.404f, -1.006f, 0.0f, 0.218f, 0.354f, 0.431f,
+	-1.001f, 0.0f, 0.226f, 0.392f, 0.445f, -0.994f, 0.0f, 0.233f, 0.418f, 0.453f, -0.987f, 0.0f, 0.238f, 0.437f, 0.457f, -0.979f, 0.0f, 0.242f, 0.45f, 0.47f,
+	-0.97f, 0.0f, 0.245f, 0.459f, 0.473f, -0.96f, -0.0f, 0.246f, 0.465f, 0.474f, -0.951f, -0.0f, 0.245f, 0.469f, 0.475f, -0.942f, 0.0f, 0.242f, 0.471f, 0.473f,
+	-0.932f, 0.0f, 0.239f, 0.472f, 0.474f, -0.924f, 0.0f, 0.234f, 0.471f, 0.474f, -0.915f, 0.0f, 0.228f, 0.469f, 0.474f, -0.906f, 0.0f, 0.22f, 0.464f, 0.47f,
+	-0.898f, 0.0f, 0.212f, 0.458f, 0.46f, -0.89f, 0.0f, 0.203f, 0.451f, 0.453f, -0.882f, 0.0f, 0.193f, 0.443f, 0.443f, -0.875f, 0.0f, 0.182f, 0.435f, 0.437f,
+	-0.869f, 0.0f, 0.172f, 0.426f, 0.428f, -0.863f, 0.0f, 0.161f, 0.417f, 0.415f, -0.858f, 0.0f, 0.148f, 0.409f, 0.41f, -0.854f, 0.0f, 0.137f, 0.399f, 0.399f,
+	-0.85f, 0.0f, 0.126f, 0.39f, 0.392f, -0.847f, 0.0f, 0.116f, 0.379f, 0.386f, -0.846f, 0.0f, 0.109f, 0.369f, 0.371f, -0.846f, 0.0f, 0.104f, 0.361f, 0.357f,
+	-0.847f, 0.0f, 0.101f, 0.355f, 0.339f, -0.849f, 0.0f, 0.101f, 0.353f, 0.334f, -0.853f, 0.0f, 0.103f, 0.354f, 0.345f, -0.859f, 0.0f, 0.108f, 0.357f, 0.35f,
+	-0.865f, 0.0f, 0.116f, 0.363f, 0.365f, -0.873f, 0.0f, 0.126f, 0.369f, 0.375f, -0.881f, 0.0f, 0.137f, 0.375f, 0.379f, -0.89f, 0.0f, 0.149f, 0.381f, 0.38f,
+	-0.899f, 0.0f, 0.159f, 0.387f, 0.385f, -0.908f, 0.0f, 0.168f, 0.394f, 0.394f, -0.919f, 0.0f, 0.177f, 0.401f, 0.398f, -0.932f, 0.0f, 0.184f, 0.409f, 0.404f,
+	-0.945f, 0.0f, 0.191f, 0.418f, 0.415f, -0.958f, 0.0f, 0.195f, 0.427f, 0.431f, -0.969f, 0.0f, 0.197f, 0.434f, 0.443f, -0.979f, 0.0f, 0.197f, 0.436f, 0.445f,
+	-0.987f, 0.0f, 0.195f, 0.428f, 0.463f, -0.995f, 0.0f, 0.192f, 0.398f, 0.46f, -1.001f, 0.0f, 0.189f, 0.345f, 0.465f, -1.01f, 0.0f, 0.183f, 0.236f, 0.236f,
+};
+
+static const float data6[47 * GP_PRIM_DATABUF_SIZE] = {
+	0.022f, 0.0f, -0.353f, 0.125f, 0.125f, 0.012f, 0.0f, -0.352f, 0.175f, 0.288f, 0.004f, 0.0f, -0.352f, 0.206f, 0.313f, -0.006f, 0.0f, -0.352f, 0.241f, 0.323f,
+	-0.017f, 0.0f, -0.352f, 0.27f, 0.33f, -0.029f, 0.0f, -0.351f, 0.295f, 0.334f, -0.041f, 0.0f, -0.349f, 0.314f, 0.337f, -0.052f, 0.0f, -0.344f, 0.327f, 0.341f,
+	-0.063f, 0.0f, -0.337f, 0.336f, 0.344f, -0.072f, 0.0f, -0.329f, 0.341f, 0.345f, -0.081f, 0.0f, -0.32f, 0.345f, 0.345f, -0.088f, 0.0f, -0.311f, 0.348f, 0.345f,
+	-0.093f, 0.0f, -0.303f, 0.352f, 0.347f, -0.098f, 0.0f, -0.295f, 0.356f, 0.352f, -0.101f, 0.0f, -0.287f, 0.361f, 0.357f, -0.102f, 0.0f, -0.279f, 0.367f, 0.364f,
+	-0.103f, 0.0f, -0.271f, 0.373f, 0.378f, -0.102f, 0.0f, -0.263f, 0.379f, 0.382f, -0.1f, 0.0f, -0.255f, 0.383f, 0.389f, -0.098f, 0.0f, -0.247f, 0.387f, 0.391f,
+	-0.094f, 0.0f, -0.24f, 0.389f, 0.393f, -0.09f, 0.0f, -0.233f, 0.391f, 0.393f, -0.086f, 0.0f, -0.227f, 0.392f, 0.393f, -0.082f, 0.0f, -0.222f, 0.393f, 0.393f,
+	-0.078f, 0.0f, -0.219f, 0.394f, 0.393f, -0.075f, 0.0f, -0.217f, 0.397f, 0.393f, -0.072f, 0.0f, -0.217f, 0.4f, 0.393f, -0.07f, 0.0f, -0.219f, 0.402f, 0.408f,
+	-0.069f, 0.0f, -0.222f, 0.404f, 0.408f, -0.069f, 0.0f, -0.228f, 0.406f, 0.409f, -0.069f, 0.0f, -0.234f, 0.407f, 0.409f, -0.07f, 0.0f, -0.241f, 0.408f, 0.409f,
+	-0.07f, 0.0f, -0.248f, 0.408f, 0.409f, -0.07f, 0.0f, -0.256f, 0.409f, 0.409f, -0.07f, 0.0f, -0.263f, 0.409f, 0.41f, -0.069f, 0.0f, -0.271f, 0.41f, 0.411f,
+	-0.068f, 0.0f, -0.279f, 0.41f, 0.411f, -0.065f, 0.0f, -0.287f, 0.41f, 0.411f, -0.062f, 0.0f, -0.295f, 0.409f, 0.411f, -0.057f, 0.0f, -0.303f, 0.409f, 0.409f,
+	-0.052f, 0.0f, -0.31f, 0.408f, 0.409f, -0.047f, 0.0f, -0.318f, 0.407f, 0.408f, -0.041f, 0.0f, -0.324f, 0.406f, 0.407f, -0.035f, 0.0f, -0.329f, 0.403f, 0.407f,
+	-0.027f, 0.0f, -0.333f, 0.4f, 0.408f, -0.021f, 0.0f, -0.336f, 0.398f, 0.403f, -0.012f, 0.0f, -0.339f, 0.393f, 0.393f,
+};
+
+static const float data7[162 * GP_PRIM_DATABUF_SIZE] = {
+	-0.291f, 0.0f, -0.34f, 0.093f, 0.093f, -0.289f, -0.0f, -0.35f, 0.149f, 0.176f, -0.287f, -0.0f, -0.357f, 0.182f, 0.242f, -0.284f, -0.0f, -0.365f, 0.215f, 0.257f,
+	-0.281f, -0.0f, -0.374f, 0.242f, 0.266f, -0.278f, -0.0f, -0.384f, 0.266f, 0.287f, -0.275f, -0.0f, -0.394f, 0.285f, 0.304f, -0.271f, 0.0f, -0.405f, 0.302f, 0.316f,
+	-0.267f, 0.0f, -0.417f, 0.317f, 0.326f, -0.263f, 0.0f, -0.429f, 0.33f, 0.337f, -0.259f, 0.0f, -0.442f, 0.342f, 0.346f, -0.256f, 0.0f, -0.454f, 0.354f, 0.351f,
+	-0.253f, 0.0f, -0.467f, 0.365f, 0.362f, -0.251f, 0.0f, -0.48f, 0.376f, 0.38f, -0.249f, -0.0f, -0.493f, 0.386f, 0.391f, -0.247f, -0.0f, -0.505f, 0.394f, 0.396f,
+	-0.246f, -0.0f, -0.518f, 0.401f, 0.405f, -0.245f, 0.0f, -0.53f, 0.408f, 0.409f, -0.245f, 0.0f, -0.542f, 0.415f, 0.413f, -0.245f, 0.0f, -0.554f, 0.421f, 0.42f,
+	-0.245f, 0.0f, -0.565f, 0.426f, 0.43f, -0.246f, 0.0f, -0.575f, 0.43f, 0.433f, -0.246f, -0.0f, -0.585f, 0.432f, 0.435f, -0.247f, -0.0f, -0.594f, 0.434f, 0.436f,
+	-0.247f, -0.0f, -0.603f, 0.435f, 0.436f, -0.248f, -0.0f, -0.612f, 0.436f, 0.436f, -0.25f, -0.0f, -0.621f, 0.437f, 0.438f, -0.252f, -0.0f, -0.631f, 0.437f, 0.438f,
+	-0.254f, -0.0f, -0.642f, 0.438f, 0.438f, -0.255f, 0.0f, -0.653f, 0.438f, 0.438f, -0.258f, 0.0f, -0.664f, 0.438f, 0.439f, -0.26f, 0.0f, -0.674f, 0.439f, 0.439f,
+	-0.261f, 0.0f, -0.685f, 0.439f, 0.439f, -0.262f, 0.0f, -0.696f, 0.439f, 0.439f, -0.264f, 0.0f, -0.706f, 0.439f, 0.439f, -0.265f, 0.0f, -0.717f, 0.439f, 0.439f,
+	-0.265f, 0.0f, -0.727f, 0.438f, 0.439f, -0.266f, 0.0f, -0.738f, 0.437f, 0.439f, -0.266f, 0.0f, -0.749f, 0.435f, 0.438f, -0.266f, 0.0f, -0.76f, 0.433f, 0.433f,
+	-0.265f, 0.0f, -0.771f, 0.431f, 0.428f, -0.265f, 0.0f, -0.781f, 0.43f, 0.428f, -0.263f, 0.0f, -0.792f, 0.429f, 0.428f, -0.26f, 0.0f, -0.802f, 0.428f, 0.429f,
+	-0.257f, 0.0f, -0.812f, 0.426f, 0.427f, -0.254f, 0.0f, -0.821f, 0.423f, 0.426f, -0.25f, 0.0f, -0.829f, 0.421f, 0.42f, -0.247f, 0.0f, -0.837f, 0.418f, 0.416f,
+	-0.242f, 0.0f, -0.844f, 0.417f, 0.415f, -0.238f, 0.0f, -0.85f, 0.415f, 0.413f, -0.234f, 0.0f, -0.857f, 0.415f, 0.413f, -0.229f, 0.0f, -0.864f, 0.414f, 0.413f,
+	-0.224f, 0.0f, -0.87f, 0.414f, 0.413f, -0.219f, 0.0f, -0.877f, 0.414f, 0.414f, -0.214f, 0.0f, -0.883f, 0.414f, 0.413f, -0.208f, 0.0f, -0.89f, 0.413f, 0.413f,
+	-0.203f, 0.0f, -0.897f, 0.413f, 0.413f, -0.197f, 0.0f, -0.903f, 0.413f, 0.413f, -0.191f, 0.0f, -0.909f, 0.413f, 0.413f, -0.186f, 0.0f, -0.914f, 0.413f, 0.413f,
+	-0.181f, 0.0f, -0.92f, 0.413f, 0.413f, -0.175f, -0.0f, -0.925f, 0.413f, 0.413f, -0.17f, -0.0f, -0.931f, 0.413f, 0.413f, -0.164f, -0.0f, -0.936f, 0.413f, 0.413f,
+	-0.159f, -0.0f, -0.942f, 0.413f, 0.413f, -0.152f, -0.0f, -0.948f, 0.413f, 0.413f, -0.145f, -0.0f, -0.955f, 0.413f, 0.413f, -0.137f, -0.0f, -0.961f, 0.414f, 0.413f,
+	-0.13f, -0.0f, -0.967f, 0.414f, 0.413f, -0.122f, -0.0f, -0.974f, 0.414f, 0.414f, -0.114f, -0.0f, -0.979f, 0.414f, 0.413f, -0.106f, -0.0f, -0.985f, 0.414f, 0.413f,
+	-0.098f, -0.0f, -0.989f, 0.414f, 0.414f, -0.091f, -0.0f, -0.993f, 0.414f, 0.413f, -0.083f, -0.0f, -0.997f, 0.414f, 0.414f, -0.075f, -0.0f, -0.999f, 0.414f, 0.414f,
+	-0.066f, -0.0f, -1.001f, 0.414f, 0.414f, -0.057f, -0.0f, -1.003f, 0.414f, 0.413f, -0.046f, -0.0f, -1.006f, 0.414f, 0.413f, -0.038f, -0.0f, -1.008f, 0.414f, 0.413f,
+	-0.031f, -0.0f, -1.009f, 0.421f, 0.413f, -0.036f, -0.0f, -1.008f, 0.423f, 0.424f, -0.045f, -0.0f, -1.006f, 0.425f, 0.425f, -0.054f, -0.0f, -1.005f, 0.425f, 0.425f,
+	-0.064f, -0.0f, -1.005f, 0.425f, 0.425f, -0.073f, -0.0f, -1.004f, 0.425f, 0.425f, -0.084f, -0.0f, -1.003f, 0.425f, 0.425f, -0.095f, -0.0f, -1.001f, 0.424f, 0.424f,
+	-0.105f, -0.0f, -0.997f, 0.423f, 0.424f, -0.116f, -0.0f, -0.994f, 0.422f, 0.422f, -0.127f, -0.0f, -0.991f, 0.421f, 0.419f, -0.137f, -0.0f, -0.987f, 0.42f, 0.419f,
+	-0.148f, -0.0f, -0.983f, 0.42f, 0.419f, -0.158f, -0.0f, -0.98f, 0.42f, 0.419f, -0.167f, -0.0f, -0.976f, 0.419f, 0.419f, -0.176f, -0.0f, -0.973f, 0.419f, 0.419f,
+	-0.184f, -0.0f, -0.969f, 0.419f, 0.419f, -0.192f, -0.0f, -0.966f, 0.419f, 0.418f, -0.2f, 0.0f, -0.962f, 0.419f, 0.418f, -0.207f, 0.0f, -0.957f, 0.419f, 0.419f,
+	-0.215f, 0.0f, -0.953f, 0.419f, 0.418f, -0.223f, 0.0f, -0.948f, 0.419f, 0.419f, -0.231f, 0.0f, -0.944f, 0.419f, 0.419f, -0.239f, 0.0f, -0.939f, 0.419f, 0.419f,
+	-0.247f, 0.0f, -0.934f, 0.419f, 0.419f, -0.255f, 0.0f, -0.929f, 0.419f, 0.419f, -0.262f, 0.0f, -0.924f, 0.419f, 0.419f, -0.269f, 0.0f, -0.919f, 0.419f, 0.418f,
+	-0.275f, 0.0f, -0.914f, 0.419f, 0.419f, -0.281f, 0.0f, -0.909f, 0.419f, 0.418f, -0.287f, 0.0f, -0.904f, 0.419f, 0.418f, -0.293f, 0.0f, -0.899f, 0.419f, 0.418f,
+	-0.299f, 0.0f, -0.894f, 0.42f, 0.419f, -0.304f, 0.0f, -0.888f, 0.421f, 0.42f, -0.311f, 0.0f, -0.882f, 0.423f, 0.422f, -0.317f, 0.0f, -0.876f, 0.424f, 0.424f,
+	-0.322f, 0.0f, -0.869f, 0.426f, 0.426f, -0.328f, 0.0f, -0.861f, 0.427f, 0.427f, -0.332f, 0.0f, -0.853f, 0.429f, 0.429f, -0.336f, 0.0f, -0.843f, 0.43f, 0.429f,
+	-0.339f, 0.0f, -0.834f, 0.432f, 0.431f, -0.341f, 0.0f, -0.821f, 0.435f, 0.434f, -0.342f, 0.0f, -0.809f, 0.438f, 0.439f, -0.343f, 0.0f, -0.796f, 0.44f, 0.44f,
+	-0.343f, 0.0f, -0.783f, 0.442f, 0.442f, -0.343f, 0.0f, -0.772f, 0.446f, 0.445f, -0.342f, 0.0f, -0.76f, 0.45f, 0.45f, -0.342f, 0.0f, -0.748f, 0.454f, 0.455f,
+	-0.34f, 0.0f, -0.735f, 0.457f, 0.457f, -0.339f, 0.0f, -0.723f, 0.46f, 0.46f, -0.338f, 0.0f, -0.711f, 0.463f, 0.464f, -0.336f, 0.0f, -0.7f, 0.465f, 0.465f,
+	-0.335f, 0.0f, -0.688f, 0.466f, 0.466f, -0.332f, 0.0f, -0.676f, 0.467f, 0.467f, -0.331f, 0.0f, -0.664f, 0.467f, 0.467f, -0.33f, 0.0f, -0.651f, 0.467f, 0.467f,
+	-0.328f, 0.0f, -0.638f, 0.467f, 0.467f, -0.325f, 0.0f, -0.625f, 0.467f, 0.467f, -0.323f, 0.0f, -0.614f, 0.467f, 0.467f, -0.321f, 0.0f, -0.603f, 0.467f, 0.466f,
+	-0.318f, 0.0f, -0.592f, 0.467f, 0.466f, -0.315f, 0.0f, -0.581f, 0.467f, 0.466f, -0.313f, 0.0f, -0.569f, 0.467f, 0.467f, -0.311f, -0.0f, -0.557f, 0.467f, 0.467f,
+	-0.309f, -0.0f, -0.543f, 0.467f, 0.467f, -0.306f, -0.0f, -0.531f, 0.467f, 0.467f, -0.303f, -0.0f, -0.519f, 0.467f, 0.467f, -0.301f, -0.0f, -0.507f, 0.467f, 0.468f,
+	-0.299f, -0.0f, -0.497f, 0.467f, 0.467f, -0.297f, -0.0f, -0.487f, 0.467f, 0.467f, -0.295f, 0.0f, -0.476f, 0.465f, 0.467f, -0.293f, 0.0f, -0.466f, 0.463f, 0.467f,
+	-0.292f, 0.0f, -0.456f, 0.46f, 0.466f, -0.291f, 0.0f, -0.445f, 0.455f, 0.459f, -0.29f, 0.0f, -0.435f, 0.449f, 0.457f, -0.29f, 0.0f, -0.424f, 0.44f, 0.448f,
+	-0.29f, 0.0f, -0.413f, 0.43f, 0.44f, -0.29f, 0.0f, -0.403f, 0.418f, 0.437f, -0.29f, -0.0f, -0.393f, 0.404f, 0.415f, -0.291f, -0.0f, -0.384f, 0.388f, 0.393f,
+	-0.29f, -0.0f, -0.376f, 0.374f, 0.379f, -0.29f, -0.0f, -0.365f, 0.352f, 0.352f,
+};
+
+static const float data8[55 * GP_PRIM_DATABUF_SIZE] = {
+	0.781f, 0.0f, 0.098f, 0.109f, 0.109f, 0.784f, 0.0f, 0.105f, 0.202f, 0.338f, 0.785f, 0.0f, 0.108f, 0.254f, 0.369f, 0.787f, 0.0f, 0.113f, 0.306f, 0.382f,
+	0.787f, 0.0f, 0.118f, 0.344f, 0.392f, 0.789f, 0.0f, 0.123f, 0.372f, 0.401f, 0.79f, 0.0f, 0.128f, 0.392f, 0.41f, 0.792f, 0.0f, 0.135f, 0.406f, 0.42f,
+	0.794f, 0.0f, 0.142f, 0.416f, 0.424f, 0.797f, 0.0f, 0.152f, 0.424f, 0.428f, 0.801f, 0.0f, 0.161f, 0.429f, 0.431f, 0.807f, 0.0f, 0.172f, 0.432f, 0.435f,
+	0.814f, 0.0f, 0.182f, 0.435f, 0.438f, 0.821f, 0.0f, 0.19f, 0.437f, 0.439f, 0.828f, 0.0f, 0.197f, 0.439f, 0.44f, 0.836f, 0.0f, 0.204f, 0.44f, 0.441f,
+	0.845f, -0.0f, 0.211f, 0.44f, 0.441f, 0.853f, -0.0f, 0.215f, 0.441f, 0.441f, 0.861f, -0.0f, 0.219f, 0.441f, 0.441f, 0.87f, -0.0f, 0.222f, 0.441f, 0.442f,
+	0.878f, -0.0f, 0.224f, 0.441f, 0.442f, 0.886f, -0.0f, 0.226f, 0.441f, 0.442f, 0.895f, -0.0f, 0.227f, 0.44f, 0.442f, 0.903f, 0.0f, 0.226f, 0.439f, 0.441f,
+	0.911f, 0.0f, 0.225f, 0.436f, 0.441f, 0.919f, 0.0f, 0.224f, 0.432f, 0.441f, 0.927f, 0.0f, 0.221f, 0.425f, 0.436f, 0.934f, 0.0f, 0.218f, 0.415f, 0.429f,
+	0.94f, 0.0f, 0.215f, 0.404f, 0.406f, 0.944f, 0.0f, 0.211f, 0.393f, 0.389f, 0.947f, 0.0f, 0.208f, 0.384f, 0.378f, 0.948f, 0.0f, 0.204f, 0.376f, 0.371f,
+	0.946f, 0.0f, 0.2f, 0.369f, 0.364f, 0.943f, 0.0f, 0.196f, 0.365f, 0.358f, 0.937f, 0.0f, 0.193f, 0.364f, 0.354f, 0.931f, 0.0f, 0.189f, 0.366f, 0.359f,
+	0.925f, 0.0f, 0.186f, 0.37f, 0.367f, 0.917f, 0.0f, 0.182f, 0.374f, 0.375f, 0.908f, 0.0f, 0.177f, 0.378f, 0.382f, 0.899f, 0.0f, 0.172f, 0.381f, 0.384f,
+	0.889f, 0.0f, 0.167f, 0.384f, 0.385f, 0.876f, 0.0f, 0.163f, 0.387f, 0.387f, 0.864f, 0.0f, 0.156f, 0.39f, 0.388f, 0.852f, 0.0f, 0.15f, 0.393f, 0.39f,
+	0.841f, 0.0f, 0.144f, 0.396f, 0.396f, 0.832f, 0.0f, 0.138f, 0.399f, 0.401f, 0.826f, 0.0f, 0.133f, 0.401f, 0.404f, 0.82f, 0.0f, 0.127f, 0.403f, 0.405f,
+	0.816f, 0.0f, 0.122f, 0.403f, 0.407f, 0.812f, 0.0f, 0.119f, 0.399f, 0.406f, 0.808f, 0.0f, 0.115f, 0.39f, 0.405f, 0.805f, 0.0f, 0.113f, 0.371f, 0.407f,
+	0.801f, 0.0f, 0.111f, 0.341f, 0.407f, 0.799f, 0.0f, 0.109f, 0.309f, 0.405f, 0.795f, 0.0f, 0.106f, 0.255f, 0.255f,
+};
+
+static const float data9[70 * GP_PRIM_DATABUF_SIZE] = {
+	0.819f, -0.0f, 0.325f, 0.109f, 0.109f, 0.829f, -0.0f, 0.328f, 0.258f, 0.403f, 0.835f, -0.0f, 0.329f, 0.327f, 0.428f, 0.843f, -0.0f, 0.331f, 0.383f, 0.452f,
+	0.851f, -0.0f, 0.332f, 0.419f, 0.465f, 0.861f, -0.0f, 0.334f, 0.444f, 0.473f, 0.87f, -0.0f, 0.336f, 0.461f, 0.48f, 0.881f, -0.0f, 0.337f, 0.473f, 0.486f,
+	0.892f, -0.0f, 0.339f, 0.482f, 0.496f, 0.904f, -0.0f, 0.341f, 0.489f, 0.501f, 0.917f, -0.0f, 0.342f, 0.494f, 0.503f, 0.931f, -0.0f, 0.342f, 0.498f, 0.505f,
+	0.945f, -0.0f, 0.342f, 0.501f, 0.505f, 0.958f, -0.0f, 0.342f, 0.503f, 0.506f, 0.971f, -0.0f, 0.341f, 0.505f, 0.506f, 0.984f, -0.0f, 0.341f, 0.506f, 0.506f,
+	0.997f, -0.0f, 0.339f, 0.507f, 0.508f, 1.009f, -0.0f, 0.337f, 0.507f, 0.507f, 1.021f, -0.0f, 0.333f, 0.508f, 0.508f, 1.033f, -0.0f, 0.33f, 0.508f, 0.508f,
+	1.044f, -0.0f, 0.326f, 0.508f, 0.508f, 1.056f, -0.0f, 0.322f, 0.508f, 0.508f, 1.068f, -0.0f, 0.317f, 0.508f, 0.508f, 1.078f, -0.0f, 0.311f, 0.507f, 0.508f,
+	1.089f, -0.0f, 0.304f, 0.506f, 0.508f, 1.099f, 0.0f, 0.294f, 0.503f, 0.506f, 1.107f, 0.0f, 0.287f, 0.498f, 0.506f, 1.113f, 0.0f, 0.28f, 0.49f, 0.505f,
+	1.117f, 0.0f, 0.276f, 0.48f, 0.501f, 1.121f, 0.0f, 0.272f, 0.468f, 0.492f, 1.124f, 0.0f, 0.27f, 0.455f, 0.467f, 1.127f, 0.0f, 0.27f, 0.443f, 0.431f,
+	1.129f, 0.0f, 0.271f, 0.431f, 0.4f, 1.13f, 0.0f, 0.274f, 0.422f, 0.399f, 1.13f, 0.0f, 0.278f, 0.414f, 0.399f, 1.13f, 0.0f, 0.286f, 0.408f, 0.399f,
+	1.128f, 0.0f, 0.295f, 0.404f, 0.399f, 1.124f, 0.0f, 0.305f, 0.402f, 0.399f, 1.119f, 0.0f, 0.316f, 0.403f, 0.4f, 1.113f, -0.0f, 0.327f, 0.405f, 0.401f,
+	1.107f, -0.0f, 0.337f, 0.408f, 0.411f, 1.1f, -0.0f, 0.345f, 0.412f, 0.412f, 1.094f, -0.0f, 0.352f, 0.416f, 0.413f, 1.087f, -0.0f, 0.357f, 0.421f, 0.422f,
+	1.08f, -0.0f, 0.363f, 0.426f, 0.428f, 1.071f, -0.0f, 0.368f, 0.429f, 0.43f, 1.062f, -0.0f, 0.373f, 0.431f, 0.431f, 1.051f, -0.0f, 0.377f, 0.433f, 0.431f,
+	1.039f, -0.0f, 0.381f, 0.436f, 0.437f, 1.026f, -0.0f, 0.383f, 0.438f, 0.44f, 1.013f, -0.0f, 0.384f, 0.44f, 0.44f, 1.0f, -0.0f, 0.385f, 0.441f, 0.443f,
+	0.987f, -0.0f, 0.385f, 0.442f, 0.443f, 0.975f, -0.0f, 0.384f, 0.443f, 0.443f, 0.962f, -0.0f, 0.383f, 0.443f, 0.444f, 0.949f, -0.0f, 0.381f, 0.443f, 0.443f,
+	0.936f, -0.0f, 0.38f, 0.443f, 0.444f, 0.923f, -0.0f, 0.378f, 0.443f, 0.444f, 0.909f, -0.0f, 0.375f, 0.443f, 0.444f, 0.897f, -0.0f, 0.371f, 0.443f, 0.444f,
+	0.886f, -0.0f, 0.367f, 0.443f, 0.443f, 0.876f, -0.0f, 0.363f, 0.443f, 0.444f, 0.868f, -0.0f, 0.359f, 0.443f, 0.442f, 0.86f, -0.0f, 0.355f, 0.442f, 0.443f,
+	0.852f, -0.0f, 0.35f, 0.441f, 0.443f, 0.844f, -0.0f, 0.347f, 0.433f, 0.443f, 0.837f, -0.0f, 0.343f, 0.409f, 0.443f, 0.83f, -0.0f, 0.338f, 0.344f, 0.443f,
+	0.824f, -0.0f, 0.335f, 0.239f, 0.437f, 0.815f, -0.0f, 0.326f, 0.0f, 0.003f,
+};
+
+static const float data10[227 * GP_PRIM_DATABUF_SIZE] = {
+	-0.675f, 0.0f, 0.411f, 0.099f, 0.099f, -0.669f, 0.0f, 0.418f, 0.358f, 0.358f, -0.666f, 0.0f, 0.424f, 0.381f, 0.381f, -0.662f, 0.0f, 0.431f, 0.389f, 0.389f,
+	-0.658f, 0.0f, 0.438f, 0.393f, 0.393f, -0.649f, 0.0f, 0.448f, 0.404f, 0.404f, -0.641f, 0.0f, 0.458f, 0.419f, 0.419f, -0.632f, 0.0f, 0.468f, 0.431f, 0.434f,
+	-0.626f, 0.0f, 0.476f, 0.435f, 0.436f, -0.62f, 0.0f, 0.484f, 0.437f, 0.438f, -0.615f, 0.0f, 0.492f, 0.439f, 0.439f, -0.61f, 0.0f, 0.499f, 0.439f, 0.44f,
+	-0.605f, 0.0f, 0.506f, 0.44f, 0.44f, -0.6f, 0.0f, 0.512f, 0.44f, 0.44f, -0.595f, 0.0f, 0.519f, 0.44f, 0.44f, -0.59f, 0.0f, 0.526f, 0.441f, 0.441f,
+	-0.584f, 0.0f, 0.532f, 0.441f, 0.441f, -0.579f, 0.0f, 0.539f, 0.441f, 0.441f, -0.573f, 0.0f, 0.545f, 0.442f, 0.442f, -0.566f, 0.0f, 0.551f, 0.443f, 0.443f,
+	-0.559f, 0.0f, 0.557f, 0.443f, 0.443f, -0.552f, 0.0f, 0.563f, 0.444f, 0.444f, -0.545f, 0.0f, 0.569f, 0.445f, 0.445f, -0.538f, 0.0f, 0.576f, 0.447f, 0.447f,
+	-0.532f, 0.0f, 0.582f, 0.448f, 0.448f, -0.525f, 0.0f, 0.589f, 0.45f, 0.45f, -0.519f, 0.0f, 0.595f, 0.451f, 0.452f, -0.513f, 0.0f, 0.602f, 0.452f, 0.453f,
+	-0.506f, 0.0f, 0.608f, 0.453f, 0.453f, -0.5f, 0.0f, 0.613f, 0.453f, 0.454f, -0.493f, 0.0f, 0.619f, 0.453f, 0.454f, -0.486f, 0.0f, 0.625f, 0.453f, 0.454f,
+	-0.479f, 0.0f, 0.631f, 0.453f, 0.454f, -0.472f, 0.0f, 0.637f, 0.453f, 0.454f, -0.464f, 0.0f, 0.642f, 0.453f, 0.454f, -0.457f, 0.0f, 0.649f, 0.453f, 0.454f,
+	-0.45f, 0.0f, 0.655f, 0.453f, 0.453f, -0.443f, 0.0f, 0.661f, 0.453f, 0.453f, -0.435f, 0.0f, 0.667f, 0.453f, 0.454f, -0.427f, 0.0f, 0.672f, 0.453f, 0.454f,
+	-0.419f, 0.0f, 0.677f, 0.453f, 0.454f, -0.411f, 0.0f, 0.682f, 0.453f, 0.453f, -0.403f, 0.0f, 0.688f, 0.453f, 0.453f, -0.395f, 0.0f, 0.692f, 0.453f, 0.454f,
+	-0.387f, 0.0f, 0.697f, 0.453f, 0.454f, -0.379f, 0.0f, 0.702f, 0.453f, 0.454f, -0.372f, 0.0f, 0.707f, 0.454f, 0.454f, -0.364f, 0.0f, 0.712f, 0.454f, 0.454f,
+	-0.356f, 0.0f, 0.716f, 0.454f, 0.454f, -0.349f, 0.0f, 0.721f, 0.454f, 0.454f, -0.342f, 0.0f, 0.725f, 0.454f, 0.454f, -0.334f, 0.0f, 0.73f, 0.454f, 0.454f,
+	-0.326f, 0.0f, 0.733f, 0.454f, 0.454f, -0.318f, 0.0f, 0.737f, 0.454f, 0.454f, -0.31f, 0.0f, 0.74f, 0.454f, 0.454f, -0.301f, 0.0f, 0.743f, 0.454f, 0.454f,
+	-0.293f, 0.0f, 0.746f, 0.454f, 0.455f, -0.284f, 0.0f, 0.749f, 0.454f, 0.455f, -0.274f, 0.0f, 0.752f, 0.455f, 0.455f, -0.265f, 0.0f, 0.755f, 0.455f, 0.455f,
+	-0.255f, 0.0f, 0.757f, 0.455f, 0.455f, -0.245f, 0.0f, 0.76f, 0.456f, 0.455f, -0.234f, 0.0f, 0.762f, 0.457f, 0.456f, -0.223f, 0.0f, 0.764f, 0.458f, 0.458f,
+	-0.212f, 0.0f, 0.766f, 0.459f, 0.46f, -0.201f, 0.0f, 0.769f, 0.461f, 0.46f, -0.189f, 0.0f, 0.771f, 0.462f, 0.461f, -0.177f, 0.0f, 0.773f, 0.464f, 0.463f,
+	-0.166f, 0.0f, 0.775f, 0.465f, 0.465f, -0.153f, 0.0f, 0.777f, 0.467f, 0.467f, -0.141f, 0.0f, 0.779f, 0.469f, 0.469f, -0.128f, 0.0f, 0.781f, 0.472f, 0.472f,
+	-0.116f, 0.0f, 0.782f, 0.474f, 0.473f, -0.101f, 0.0f, 0.782f, 0.477f, 0.477f, -0.087f, 0.0f, 0.783f, 0.482f, 0.477f, -0.073f, 0.0f, 0.783f, 0.489f, 0.483f,
+	-0.059f, 0.0f, 0.783f, 0.497f, 0.5f, -0.046f, 0.0f, 0.784f, 0.503f, 0.509f, -0.033f, 0.0f, 0.784f, 0.508f, 0.51f, -0.022f, 0.0f, 0.784f, 0.51f, 0.512f,
+	-0.011f, 0.0f, 0.785f, 0.512f, 0.512f, -0.0f, 0.0f, 0.786f, 0.513f, 0.512f, 0.011f, 0.0f, 0.786f, 0.515f, 0.513f, 0.022f, 0.0f, 0.786f, 0.517f, 0.517f,
+	0.032f, 0.0f, 0.786f, 0.52f, 0.519f, 0.044f, 0.0f, 0.786f, 0.522f, 0.524f, 0.055f, 0.0f, 0.785f, 0.525f, 0.525f, 0.066f, 0.0f, 0.785f, 0.527f, 0.525f,
+	0.076f, 0.0f, 0.784f, 0.53f, 0.53f, 0.086f, 0.0f, 0.783f, 0.532f, 0.533f, 0.097f, 0.0f, 0.782f, 0.535f, 0.534f, 0.108f, 0.0f, 0.782f, 0.538f, 0.541f,
+	0.119f, 0.0f, 0.781f, 0.54f, 0.542f, 0.13f, 0.0f, 0.781f, 0.543f, 0.543f, 0.141f, 0.0f, 0.78f, 0.545f, 0.545f, 0.154f, 0.0f, 0.779f, 0.547f, 0.547f,
+	0.165f, 0.0f, 0.777f, 0.549f, 0.548f, 0.177f, 0.0f, 0.775f, 0.55f, 0.552f, 0.188f, 0.0f, 0.772f, 0.552f, 0.552f, 0.199f, 0.0f, 0.77f, 0.553f, 0.553f,
+	0.209f, 0.0f, 0.767f, 0.554f, 0.554f, 0.218f, 0.0f, 0.765f, 0.555f, 0.556f, 0.226f, 0.0f, 0.763f, 0.556f, 0.557f, 0.235f, 0.0f, 0.761f, 0.557f, 0.557f,
+	0.244f, 0.0f, 0.758f, 0.558f, 0.558f, 0.253f, 0.0f, 0.755f, 0.559f, 0.559f, 0.263f, 0.0f, 0.752f, 0.56f, 0.559f, 0.272f, 0.0f, 0.749f, 0.561f, 0.56f,
+	0.285f, 0.0f, 0.745f, 0.562f, 0.56f, 0.299f, 0.0f, 0.741f, 0.563f, 0.563f, 0.316f, 0.0f, 0.736f, 0.564f, 0.564f, 0.331f, 0.0f, 0.728f, 0.565f, 0.567f,
+	0.349f, 0.0f, 0.718f, 0.565f, 0.568f, 0.365f, 0.0f, 0.708f, 0.566f, 0.568f, 0.38f, 0.0f, 0.699f, 0.566f, 0.568f, 0.39f, 0.0f, 0.693f, 0.566f, 0.568f,
+	0.397f, 0.0f, 0.687f, 0.566f, 0.569f, 0.4f, 0.0f, 0.683f, 0.566f, 0.569f, 0.401f, 0.0f, 0.681f, 0.565f, 0.57f, 0.4f, 0.0f, 0.679f, 0.565f, 0.57f,
+	0.397f, 0.0f, 0.678f, 0.564f, 0.57f, 0.393f, 0.0f, 0.678f, 0.564f, 0.565f, 0.387f, 0.0f, 0.678f, 0.563f, 0.559f, 0.379f, 0.0f, 0.679f, 0.562f, 0.558f,
+	0.37f, 0.0f, 0.681f, 0.561f, 0.557f, 0.357f, 0.0f, 0.684f, 0.561f, 0.557f, 0.342f, 0.0f, 0.689f, 0.56f, 0.557f, 0.324f, 0.0f, 0.694f, 0.56f, 0.557f,
+	0.307f, 0.0f, 0.697f, 0.559f, 0.558f, 0.291f, 0.0f, 0.699f, 0.559f, 0.558f, 0.274f, 0.0f, 0.701f, 0.559f, 0.557f, 0.26f, 0.0f, 0.703f, 0.558f, 0.558f,
+	0.246f, 0.0f, 0.705f, 0.558f, 0.558f, 0.235f, 0.0f, 0.707f, 0.558f, 0.558f, 0.224f, 0.0f, 0.709f, 0.558f, 0.558f, 0.214f, 0.0f, 0.711f, 0.558f, 0.558f,
+	0.203f, 0.0f, 0.713f, 0.558f, 0.559f, 0.192f, 0.0f, 0.714f, 0.558f, 0.558f, 0.181f, 0.0f, 0.714f, 0.557f, 0.557f, 0.17f, 0.0f, 0.714f, 0.557f, 0.557f,
+	0.16f, 0.0f, 0.715f, 0.557f, 0.556f, 0.149f, 0.0f, 0.715f, 0.557f, 0.556f, 0.139f, 0.0f, 0.716f, 0.557f, 0.556f, 0.129f, 0.0f, 0.716f, 0.558f, 0.556f,
+	0.119f, 0.0f, 0.717f, 0.558f, 0.556f, 0.109f, 0.0f, 0.717f, 0.558f, 0.557f, 0.099f, 0.0f, 0.718f, 0.558f, 0.557f, 0.089f, 0.0f, 0.718f, 0.559f, 0.557f,
+	0.079f, 0.0f, 0.718f, 0.559f, 0.558f, 0.068f, 0.0f, 0.719f, 0.559f, 0.559f, 0.057f, 0.0f, 0.719f, 0.56f, 0.56f, 0.046f, 0.0f, 0.718f, 0.56f, 0.561f,
+	0.035f, 0.0f, 0.718f, 0.561f, 0.561f, 0.024f, 0.0f, 0.718f, 0.561f, 0.562f, 0.013f, 0.0f, 0.717f, 0.562f, 0.562f, 0.002f, 0.0f, 0.717f, 0.562f, 0.563f,
+	-0.01f, 0.0f, 0.717f, 0.563f, 0.564f, -0.021f, 0.0f, 0.717f, 0.563f, 0.564f, -0.032f, 0.0f, 0.716f, 0.563f, 0.564f, -0.044f, 0.0f, 0.715f, 0.564f, 0.564f,
+	-0.055f, 0.0f, 0.714f, 0.564f, 0.565f, -0.066f, 0.0f, 0.713f, 0.564f, 0.565f, -0.078f, 0.0f, 0.712f, 0.564f, 0.564f, -0.089f, 0.0f, 0.711f, 0.564f, 0.564f,
+	-0.101f, 0.0f, 0.709f, 0.565f, 0.564f, -0.112f, 0.0f, 0.708f, 0.565f, 0.564f, -0.124f, 0.0f, 0.707f, 0.565f, 0.564f, -0.135f, 0.0f, 0.705f, 0.565f, 0.564f,
+	-0.146f, 0.0f, 0.704f, 0.566f, 0.564f, -0.158f, 0.0f, 0.702f, 0.566f, 0.564f, -0.169f, 0.0f, 0.7f, 0.566f, 0.566f, -0.18f, 0.0f, 0.698f, 0.567f, 0.568f,
+	-0.191f, 0.0f, 0.696f, 0.567f, 0.568f, -0.203f, 0.0f, 0.693f, 0.567f, 0.568f, -0.215f, 0.0f, 0.69f, 0.567f, 0.568f, -0.227f, 0.0f, 0.687f, 0.567f, 0.568f,
+	-0.238f, 0.0f, 0.684f, 0.567f, 0.568f, -0.25f, 0.0f, 0.681f, 0.567f, 0.569f, -0.262f, 0.0f, 0.678f, 0.567f, 0.569f, -0.273f, 0.0f, 0.675f, 0.567f, 0.567f,
+	-0.284f, 0.0f, 0.673f, 0.567f, 0.566f, -0.295f, 0.0f, 0.671f, 0.567f, 0.567f, -0.305f, 0.0f, 0.669f, 0.566f, 0.567f, -0.316f, 0.0f, 0.666f, 0.566f, 0.567f,
+	-0.326f, 0.0f, 0.663f, 0.565f, 0.566f, -0.337f, 0.0f, 0.66f, 0.565f, 0.566f, -0.348f, 0.0f, 0.655f, 0.564f, 0.564f, -0.359f, 0.0f, 0.652f, 0.563f, 0.564f,
+	-0.369f, 0.0f, 0.648f, 0.562f, 0.563f, -0.379f, 0.0f, 0.644f, 0.561f, 0.56f, -0.389f, 0.0f, 0.64f, 0.561f, 0.559f, -0.399f, 0.0f, 0.636f, 0.56f, 0.559f,
+	-0.409f, 0.0f, 0.633f, 0.559f, 0.559f, -0.419f, 0.0f, 0.629f, 0.559f, 0.559f, -0.428f, 0.0f, 0.625f, 0.559f, 0.558f, -0.438f, 0.0f, 0.62f, 0.559f, 0.559f,
+	-0.447f, 0.0f, 0.615f, 0.559f, 0.559f, -0.457f, 0.0f, 0.61f, 0.559f, 0.559f, -0.466f, 0.0f, 0.605f, 0.559f, 0.559f, -0.474f, 0.0f, 0.6f, 0.559f, 0.559f,
+	-0.483f, 0.0f, 0.595f, 0.559f, 0.559f, -0.492f, 0.0f, 0.591f, 0.559f, 0.559f, -0.5f, 0.0f, 0.586f, 0.559f, 0.559f, -0.508f, 0.0f, 0.58f, 0.559f, 0.559f,
+	-0.515f, 0.0f, 0.574f, 0.559f, 0.559f, -0.523f, 0.0f, 0.568f, 0.559f, 0.559f, -0.531f, 0.0f, 0.562f, 0.559f, 0.558f, -0.54f, 0.0f, 0.556f, 0.559f, 0.558f,
+	-0.548f, 0.0f, 0.549f, 0.559f, 0.559f, -0.556f, 0.0f, 0.543f, 0.559f, 0.559f, -0.562f, 0.0f, 0.537f, 0.559f, 0.559f, -0.568f, 0.0f, 0.531f, 0.559f, 0.559f,
+	-0.574f, 0.0f, 0.524f, 0.559f, 0.559f, -0.58f, 0.0f, 0.518f, 0.558f, 0.559f, -0.586f, 0.0f, 0.512f, 0.557f, 0.558f, -0.591f, 0.0f, 0.506f, 0.555f, 0.557f,
+	-0.597f, 0.0f, 0.5f, 0.551f, 0.556f, -0.603f, 0.0f, 0.493f, 0.546f, 0.547f, -0.609f, 0.0f, 0.487f, 0.541f, 0.538f, -0.614f, 0.0f, 0.48f, 0.536f, 0.535f,
+	-0.621f, 0.0f, 0.473f, 0.534f, 0.534f, -0.628f, 0.0f, 0.467f, 0.534f, 0.534f, -0.637f, 0.0f, 0.459f, 0.534f, 0.534f, -0.642f, 0.0f, 0.452f, 0.532f, 0.532f,
+	-0.65f, 0.0f, 0.445f, 0.528f, 0.528f, -0.654f, 0.0f, 0.438f, 0.525f, 0.525f, -0.659f, 0.0f, 0.431f, 0.522f, 0.522f,
+};
+
+static const float data11[1 * GP_PRIM_DATABUF_SIZE] = {
+	-0.525f, 0.0f, 0.174f, 0.124f, 0.124f,
+};
+
+static const float data12[123 * GP_PRIM_DATABUF_SIZE] = {
+	-0.53f, 0.0f, 0.193f, 0.147f, 0.147f, -0.532f, 0.0f, 0.186f, 0.316f, 0.316f, -0.534f, 0.0f, 0.18f, 0.353f, 0.353f, -0.535f, 0.0f, 0.173f, 0.382f, 0.382f,
+	-0.537f, 0.0f, 0.165f, 0.384f, 0.384f, -0.538f, 0.0f, 0.155f, 0.387f, 0.387f, -0.539f, 0.0f, 0.145f, 0.393f, 0.393f, -0.54f, -0.0f, 0.134f, 0.399f, 0.399f,
+	-0.541f, -0.0f, 0.123f, 0.4f, 0.4f, -0.542f, -0.0f, 0.11f, 0.401f, 0.401f, -0.542f, 0.0f, 0.094f, 0.402f, 0.402f, -0.54f, 0.0f, 0.078f, 0.403f, 0.403f,
+	-0.538f, 0.0f, 0.061f, 0.404f, 0.404f, -0.535f, 0.0f, 0.045f, 0.404f, 0.404f, -0.531f, 0.0f, 0.031f, 0.404f, 0.404f, -0.526f, 0.0f, 0.018f, 0.404f, 0.404f,
+	-0.52f, -0.0f, 0.005f, 0.405f, 0.405f, -0.513f, -0.0f, -0.01f, 0.405f, 0.405f, -0.505f, -0.0f, -0.024f, 0.405f, 0.405f, -0.495f, -0.0f, -0.037f, 0.405f, 0.405f,
+	-0.485f, 0.0f, -0.051f, 0.405f, 0.405f, -0.474f, 0.0f, -0.064f, 0.406f, 0.406f, -0.462f, 0.0f, -0.076f, 0.405f, 0.405f, -0.451f, 0.0f, -0.086f, 0.406f, 0.406f,
+	-0.442f, 0.0f, -0.094f, 0.406f, 0.406f, -0.432f, 0.0f, -0.102f, 0.406f, 0.406f, -0.422f, 0.0f, -0.108f, 0.405f, 0.405f, -0.411f, 0.0f, -0.114f, 0.406f, 0.406f,
+	-0.4f, 0.0f, -0.119f, 0.405f, 0.405f, -0.389f, 0.0f, -0.122f, 0.406f, 0.406f, -0.378f, 0.0f, -0.125f, 0.407f, 0.407f, -0.365f, 0.0f, -0.127f, 0.412f, 0.412f,
+	-0.354f, 0.0f, -0.129f, 0.418f, 0.418f, -0.342f, 0.0f, -0.131f, 0.44f, 0.44f, -0.33f, 0.0f, -0.131f, 0.448f, 0.448f, -0.317f, 0.0f, -0.131f, 0.469f, 0.469f,
+	-0.305f, 0.0f, -0.13f, 0.477f, 0.477f, -0.293f, 0.0f, -0.128f, 0.482f, 0.482f, -0.278f, 0.0f, -0.125f, 0.494f, 0.494f, -0.266f, 0.0f, -0.121f, 0.5f, 0.5f,
+	-0.253f, 0.0f, -0.116f, 0.507f, 0.507f, -0.242f, 0.0f, -0.111f, 0.509f, 0.509f, -0.231f, 0.0f, -0.105f, 0.511f, 0.511f, -0.222f, 0.0f, -0.099f, 0.511f, 0.511f,
+	-0.213f, 0.0f, -0.092f, 0.512f, 0.512f, -0.206f, 0.0f, -0.084f, 0.513f, 0.513f, -0.199f, 0.0f, -0.076f, 0.514f, 0.514f, -0.192f, 0.0f, -0.067f, 0.515f, 0.515f,
+	-0.186f, -0.0f, -0.058f, 0.516f, 0.516f, -0.18f, -0.0f, -0.049f, 0.516f, 0.516f, -0.175f, -0.0f, -0.04f, 0.515f, 0.515f, -0.17f, -0.0f, -0.03f, 0.515f, 0.515f,
+	-0.166f, -0.0f, -0.02f, 0.516f, 0.516f, -0.163f, -0.0f, -0.01f, 0.504f, 0.504f, -0.159f, -0.0f, 0.002f, 0.502f, 0.502f, -0.155f, -0.0f, 0.014f, 0.501f, 0.501f,
+	-0.152f, -0.0f, 0.027f, 0.502f, 0.502f, -0.149f, -0.0f, 0.043f, 0.5f, 0.5f, -0.148f, -0.0f, 0.058f, 0.49f, 0.49f, -0.147f, -0.0f, 0.075f, 0.47f, 0.47f,
+	-0.146f, -0.0f, 0.09f, 0.463f, 0.463f, -0.146f, -0.0f, 0.105f, 0.454f, 0.454f, -0.146f, -0.0f, 0.12f, 0.427f, 0.427f, -0.148f, 0.0f, 0.133f, 0.413f, 0.413f,
+	-0.15f, 0.0f, 0.144f, 0.4f, 0.4f, -0.153f, 0.0f, 0.152f, 0.383f, 0.383f, -0.156f, 0.0f, 0.157f, 0.369f, 0.369f, -0.158f, 0.0f, 0.16f, 0.36f, 0.36f,
+	-0.16f, 0.0f, 0.158f, 0.349f, 0.349f, -0.162f, 0.0f, 0.154f, 0.364f, 0.364f, -0.164f, 0.0f, 0.147f, 0.37f, 0.37f, -0.166f, 0.0f, 0.139f, 0.378f, 0.378f,
+	-0.168f, 0.0f, 0.13f, 0.386f, 0.386f, -0.172f, 0.0f, 0.119f, 0.394f, 0.394f, -0.176f, -0.0f, 0.108f, 0.405f, 0.405f, -0.18f, -0.0f, 0.096f, 0.412f, 0.412f,
+	-0.185f, -0.0f, 0.084f, 0.417f, 0.417f, -0.191f, -0.0f, 0.073f, 0.425f, 0.425f, -0.196f, -0.0f, 0.063f, 0.431f, 0.431f, -0.202f, -0.0f, 0.053f, 0.441f, 0.441f,
+	-0.208f, -0.0f, 0.043f, 0.444f, 0.444f, -0.214f, -0.0f, 0.034f, 0.451f, 0.451f, -0.22f, 0.0f, 0.026f, 0.46f, 0.46f, -0.226f, 0.0f, 0.018f, 0.463f, 0.463f,
+	-0.232f, 0.0f, 0.01f, 0.474f, 0.474f, -0.239f, 0.0f, 0.004f, 0.477f, 0.477f, -0.247f, 0.0f, -0.003f, 0.48f, 0.48f, -0.255f, 0.0f, -0.008f, 0.483f, 0.483f,
+	-0.264f, 0.0f, -0.013f, 0.497f, 0.497f, -0.274f, 0.0f, -0.018f, 0.501f, 0.501f, -0.285f, 0.0f, -0.022f, 0.505f, 0.505f, -0.297f, 0.0f, -0.024f, 0.509f, 0.509f,
+	-0.311f, 0.0f, -0.025f, 0.51f, 0.51f, -0.325f, 0.0f, -0.024f, 0.512f, 0.512f, -0.339f, 0.0f, -0.023f, 0.512f, 0.512f, -0.354f, 0.0f, -0.022f, 0.513f, 0.513f,
+	-0.368f, 0.0f, -0.02f, 0.513f, 0.513f, -0.382f, 0.0f, -0.017f, 0.514f, 0.514f, -0.397f, 0.0f, -0.013f, 0.514f, 0.514f, -0.41f, 0.0f, -0.007f, 0.514f, 0.514f,
+	-0.422f, 0.0f, 0.001f, 0.513f, 0.513f, -0.434f, 0.0f, 0.009f, 0.514f, 0.514f, -0.446f, 0.0f, 0.018f, 0.514f, 0.514f, -0.458f, 0.0f, 0.028f, 0.514f, 0.514f,
+	-0.47f, -0.0f, 0.039f, 0.514f, 0.514f, -0.48f, 0.0f, 0.048f, 0.514f, 0.514f, -0.487f, 0.0f, 0.057f, 0.514f, 0.514f, -0.493f, 0.0f, 0.068f, 0.514f, 0.514f,
+	-0.498f, 0.0f, 0.08f, 0.514f, 0.514f, -0.502f, 0.0f, 0.092f, 0.514f, 0.514f, -0.506f, 0.0f, 0.104f, 0.514f, 0.514f, -0.509f, -0.0f, 0.116f, 0.515f, 0.515f,
+	-0.511f, -0.0f, 0.125f, 0.515f, 0.515f, -0.513f, -0.0f, 0.133f, 0.515f, 0.515f, -0.515f, -0.0f, 0.141f, 0.515f, 0.515f, -0.517f, 0.0f, 0.148f, 0.515f, 0.515f,
+	-0.519f, 0.0f, 0.155f, 0.514f, 0.514f, -0.52f, 0.0f, 0.161f, 0.514f, 0.514f, -0.522f, 0.0f, 0.168f, 0.514f, 0.514f, -0.523f, 0.0f, 0.174f, 0.514f, 0.514f,
+	-0.525f, 0.0f, 0.18f, 0.514f, 0.514f, -0.526f, 0.0f, 0.185f, 0.514f, 0.514f, -0.527f, 0.0f, 0.191f, 0.513f, 0.513f,
+};
+
+static const float data13[125 * GP_PRIM_DATABUF_SIZE] = {
+	0.184f, 0.0f, 0.22f, 0.026f, 0.026f, 0.182f, 0.0f, 0.21f, 0.275f, 0.275f, 0.18f, 0.0f, 0.203f, 0.301f, 0.301f, 0.178f, 0.0f, 0.195f, 0.322f, 0.322f,
+	0.176f, 0.0f, 0.186f, 0.343f, 0.343f, 0.173f, 0.0f, 0.176f, 0.36f, 0.36f, 0.17f, -0.0f, 0.166f, 0.367f, 0.367f, 0.168f, -0.0f, 0.156f, 0.38f, 0.38f,
+	0.165f, -0.0f, 0.145f, 0.385f, 0.385f, 0.163f, -0.0f, 0.132f, 0.391f, 0.391f, 0.161f, -0.0f, 0.119f, 0.401f, 0.401f, 0.16f, -0.0f, 0.103f, 0.405f, 0.405f,
+	0.161f, -0.0f, 0.086f, 0.405f, 0.405f, 0.163f, -0.0f, 0.068f, 0.407f, 0.407f, 0.165f, 0.0f, 0.051f, 0.409f, 0.409f, 0.168f, 0.0f, 0.034f, 0.409f, 0.409f,
+	0.172f, 0.0f, 0.018f, 0.409f, 0.409f, 0.177f, 0.0f, 0.004f, 0.409f, 0.409f, 0.183f, 0.0f, -0.008f, 0.411f, 0.411f, 0.19f, 0.0f, -0.022f, 0.411f, 0.411f,
+	0.196f, 0.0f, -0.034f, 0.411f, 0.411f, 0.203f, 0.0f, -0.045f, 0.411f, 0.411f, 0.211f, 0.0f, -0.055f, 0.411f, 0.411f, 0.219f, 0.0f, -0.064f, 0.411f, 0.411f,
+	0.227f, 0.0f, -0.072f, 0.411f, 0.411f, 0.235f, 0.0f, -0.08f, 0.412f, 0.412f, 0.244f, 0.0f, -0.087f, 0.412f, 0.412f, 0.253f, 0.0f, -0.094f, 0.413f, 0.413f,
+	0.262f, 0.0f, -0.1f, 0.413f, 0.413f, 0.273f, 0.0f, -0.105f, 0.413f, 0.413f, 0.284f, 0.0f, -0.11f, 0.413f, 0.413f, 0.295f, 0.0f, -0.114f, 0.419f, 0.419f,
+	0.307f, 0.0f, -0.117f, 0.425f, 0.425f, 0.321f, -0.0f, -0.118f, 0.433f, 0.433f, 0.334f, -0.0f, -0.12f, 0.446f, 0.446f, 0.347f, -0.0f, -0.12f, 0.474f, 0.474f,
+	0.36f, -0.0f, -0.12f, 0.481f, 0.481f, 0.374f, -0.0f, -0.119f, 0.491f, 0.491f, 0.387f, -0.0f, -0.118f, 0.494f, 0.494f, 0.401f, 0.0f, -0.116f, 0.5f, 0.5f,
+	0.414f, 0.0f, -0.112f, 0.505f, 0.505f, 0.426f, -0.0f, -0.107f, 0.51f, 0.51f, 0.438f, -0.0f, -0.101f, 0.513f, 0.513f, 0.449f, -0.0f, -0.094f, 0.515f, 0.515f,
+	0.46f, -0.0f, -0.086f, 0.517f, 0.517f, 0.47f, -0.0f, -0.078f, 0.519f, 0.519f, 0.478f, -0.0f, -0.07f, 0.52f, 0.52f, 0.486f, -0.0f, -0.061f, 0.522f, 0.522f,
+	0.493f, -0.0f, -0.052f, 0.523f, 0.523f, 0.499f, -0.0f, -0.044f, 0.522f, 0.522f, 0.505f, -0.0f, -0.035f, 0.522f, 0.522f, 0.51f, -0.0f, -0.027f, 0.523f, 0.523f,
+	0.514f, -0.0f, -0.018f, 0.523f, 0.523f, 0.517f, -0.0f, -0.009f, 0.523f, 0.523f, 0.52f, -0.0f, -0.001f, 0.524f, 0.524f, 0.522f, -0.0f, 0.008f, 0.523f, 0.523f,
+	0.525f, -0.0f, 0.018f, 0.521f, 0.522f, 0.527f, -0.0f, 0.027f, 0.515f, 0.514f, 0.529f, -0.0f, 0.036f, 0.512f, 0.512f, 0.531f, -0.0f, 0.045f, 0.509f, 0.51f,
+	0.533f, -0.0f, 0.053f, 0.506f, 0.505f, 0.535f, -0.0f, 0.062f, 0.503f, 0.503f, 0.536f, -0.0f, 0.071f, 0.5f, 0.5f, 0.538f, -0.0f, 0.08f, 0.496f, 0.497f,
+	0.538f, -0.0f, 0.09f, 0.491f, 0.492f, 0.539f, -0.0f, 0.1f, 0.485f, 0.486f, 0.539f, 0.0f, 0.11f, 0.475f, 0.476f, 0.539f, 0.0f, 0.12f, 0.46f, 0.459f,
+	0.539f, 0.0f, 0.13f, 0.444f, 0.448f, 0.538f, 0.0f, 0.139f, 0.406f, 0.405f, 0.537f, 0.0f, 0.144f, 0.399f, 0.399f, 0.536f, 0.0f, 0.146f, 0.395f, 0.395f,
+	0.535f, 0.0f, 0.144f, 0.412f, 0.412f, 0.533f, 0.0f, 0.139f, 0.413f, 0.413f, 0.53f, 0.0f, 0.131f, 0.414f, 0.413f, 0.528f, 0.0f, 0.122f, 0.419f, 0.418f,
+	0.525f, 0.0f, 0.112f, 0.425f, 0.424f, 0.521f, 0.0f, 0.102f, 0.444f, 0.444f, 0.518f, 0.0f, 0.094f, 0.451f, 0.452f, 0.514f, 0.0f, 0.085f, 0.457f, 0.457f,
+	0.509f, 0.0f, 0.078f, 0.461f, 0.46f, 0.504f, 0.0f, 0.069f, 0.469f, 0.468f, 0.499f, 0.0f, 0.06f, 0.481f, 0.481f, 0.493f, 0.0f, 0.052f, 0.489f, 0.489f,
+	0.487f, 0.0f, 0.044f, 0.492f, 0.492f, 0.481f, 0.0f, 0.037f, 0.501f, 0.5f, 0.474f, 0.0f, 0.029f, 0.513f, 0.513f, 0.467f, 0.0f, 0.022f, 0.521f, 0.521f,
+	0.458f, 0.0f, 0.015f, 0.524f, 0.524f, 0.449f, 0.0f, 0.008f, 0.525f, 0.525f, 0.439f, 0.0f, 0.001f, 0.528f, 0.528f, 0.427f, 0.0f, -0.005f, 0.532f, 0.532f,
+	0.416f, 0.0f, -0.011f, 0.533f, 0.533f, 0.401f, 0.0f, -0.015f, 0.537f, 0.537f, 0.386f, 0.0f, -0.018f, 0.539f, 0.539f, 0.371f, 0.0f, -0.02f, 0.538f, 0.538f,
+	0.356f, 0.0f, -0.021f, 0.543f, 0.543f, 0.341f, 0.0f, -0.023f, 0.543f, 0.543f, 0.326f, 0.0f, -0.023f, 0.543f, 0.543f, 0.312f, 0.0f, -0.022f, 0.543f, 0.543f,
+	0.298f, 0.0f, -0.018f, 0.543f, 0.543f, 0.286f, 0.0f, -0.014f, 0.543f, 0.543f, 0.273f, 0.0f, -0.006f, 0.543f, 0.543f, 0.26f, 0.0f, 0.004f, 0.543f, 0.543f,
+	0.247f, 0.0f, 0.013f, 0.543f, 0.543f, 0.235f, 0.0f, 0.022f, 0.543f, 0.543f, 0.225f, 0.0f, 0.033f, 0.543f, 0.543f, 0.215f, 0.0f, 0.045f, 0.542f, 0.542f,
+	0.206f, 0.0f, 0.061f, 0.54f, 0.54f, 0.199f, 0.0f, 0.078f, 0.542f, 0.542f, 0.193f, 0.0f, 0.094f, 0.542f, 0.542f, 0.189f, -0.0f, 0.109f, 0.541f, 0.541f,
+	0.186f, -0.0f, 0.119f, 0.542f, 0.542f, 0.185f, -0.0f, 0.127f, 0.542f, 0.542f, 0.184f, -0.0f, 0.135f, 0.542f, 0.542f, 0.184f, -0.0f, 0.142f, 0.542f, 0.542f,
+	0.183f, -0.0f, 0.149f, 0.541f, 0.541f, 0.183f, -0.0f, 0.156f, 0.538f, 0.538f, 0.183f, -0.0f, 0.163f, 0.539f, 0.539f, 0.183f, -0.0f, 0.17f, 0.54f, 0.54f,
+	0.183f, 0.0f, 0.177f, 0.54f, 0.54f, 0.183f, 0.0f, 0.184f, 0.54f, 0.54f, 0.183f, 0.0f, 0.191f, 0.54f, 0.54f, 0.184f, 0.0f, 0.196f, 0.539f, 0.539f,
+	0.184f, 0.0f, 0.204f, 0.518f, 0.518f,
+};
+
+static const float data14[45 * GP_PRIM_DATABUF_SIZE] = {
+	-0.096f, -0.0f, -0.305f, 0.01f, 0.01f, -0.09f, -0.0f, -0.313f, 0.121f, 0.362f, -0.086f, -0.0f, -0.318f, 0.179f, 0.368f, -0.081f, -0.0f, -0.325f, 0.234f, 0.37f,
+	-0.075f, -0.0f, -0.331f, 0.272f, 0.37f, -0.068f, -0.0f, -0.338f, 0.302f, 0.371f, -0.061f, -0.0f, -0.345f, 0.324f, 0.374f, -0.053f, -0.0f, -0.352f, 0.34f, 0.377f,
+	-0.044f, -0.0f, -0.358f, 0.352f, 0.378f, -0.035f, -0.0f, -0.362f, 0.362f, 0.377f, -0.026f, -0.0f, -0.366f, 0.37f, 0.378f, -0.018f, -0.0f, -0.368f, 0.377f, 0.378f,
+	-0.009f, -0.0f, -0.369f, 0.383f, 0.376f, -0.001f, -0.0f, -0.369f, 0.389f, 0.369f, 0.007f, -0.0f, -0.368f, 0.395f, 0.364f, 0.015f, -0.0f, -0.367f, 0.4f, 0.388f,
+	0.023f, -0.0f, -0.365f, 0.405f, 0.41f, 0.03f, -0.0f, -0.363f, 0.41f, 0.429f, 0.038f, -0.0f, -0.36f, 0.414f, 0.438f, 0.044f, -0.0f, -0.357f, 0.417f, 0.441f,
+	0.05f, -0.0f, -0.355f, 0.419f, 0.444f, 0.055f, -0.0f, -0.352f, 0.42f, 0.441f, 0.06f, -0.0f, -0.349f, 0.421f, 0.445f, 0.063f, -0.0f, -0.347f, 0.421f, 0.446f,
+	0.065f, -0.0f, -0.344f, 0.42f, 0.443f, 0.065f, -0.0f, -0.342f, 0.42f, 0.437f, 0.065f, -0.0f, -0.341f, 0.419f, 0.413f, 0.063f, -0.0f, -0.339f, 0.418f, 0.404f,
+	0.061f, -0.0f, -0.338f, 0.418f, 0.403f, 0.057f, -0.0f, -0.337f, 0.418f, 0.402f, 0.052f, -0.0f, -0.337f, 0.418f, 0.407f, 0.046f, -0.0f, -0.337f, 0.419f, 0.411f,
+	0.04f, 0.0f, -0.336f, 0.42f, 0.416f, 0.032f, 0.0f, -0.337f, 0.422f, 0.421f, 0.023f, 0.0f, -0.339f, 0.424f, 0.425f, 0.014f, 0.0f, -0.34f, 0.426f, 0.427f,
+	0.003f, 0.0f, -0.341f, 0.428f, 0.427f, -0.007f, 0.0f, -0.341f, 0.43f, 0.433f, -0.018f, 0.0f, -0.339f, 0.432f, 0.437f, -0.027f, 0.0f, -0.335f, 0.434f, 0.438f,
+	-0.037f, 0.0f, -0.33f, 0.435f, 0.437f, -0.046f, -0.0f, -0.326f, 0.436f, 0.438f, -0.055f, -0.0f, -0.321f, 0.436f, 0.44f, -0.062f, -0.0f, -0.316f, 0.437f, 0.439f,
+	-0.073f, -0.0f, -0.31f, 0.437f, 0.437f,
+};
+
+static const float data16[84 * GP_PRIM_DATABUF_SIZE] = {
+	0.737f, 0.0f, 0.177f, 0.148f, 0.148f, 0.735f, 0.0f, 0.164f, 0.214f, 0.39f, 0.734f, 0.0f, 0.155f, 0.254f, 0.402f, 0.732f, 0.0f, 0.143f, 0.295f, 0.413f,
+	0.73f, 0.0f, 0.132f, 0.328f, 0.415f, 0.728f, 0.0f, 0.121f, 0.355f, 0.415f, 0.726f, 0.0f, 0.109f, 0.375f, 0.416f, 0.724f, 0.0f, 0.097f, 0.39f, 0.417f,
+	0.721f, 0.0f, 0.086f, 0.401f, 0.418f, 0.719f, 0.0f, 0.074f, 0.408f, 0.419f, 0.716f, 0.0f, 0.062f, 0.413f, 0.42f, 0.713f, 0.0f, 0.05f, 0.416f, 0.42f,
+	0.71f, 0.0f, 0.039f, 0.418f, 0.421f, 0.707f, 0.0f, 0.028f, 0.42f, 0.421f, 0.703f, 0.0f, 0.017f, 0.421f, 0.422f, 0.7f, 0.0f, 0.006f, 0.421f, 0.422f,
+	0.696f, 0.0f, -0.005f, 0.422f, 0.422f, 0.693f, 0.0f, -0.015f, 0.422f, 0.422f, 0.689f, 0.0f, -0.025f, 0.423f, 0.423f, 0.685f, 0.0f, -0.034f, 0.423f, 0.423f,
+	0.681f, 0.0f, -0.044f, 0.423f, 0.423f, 0.677f, 0.0f, -0.053f, 0.423f, 0.423f, 0.672f, 0.0f, -0.062f, 0.423f, 0.423f, 0.668f, 0.0f, -0.071f, 0.422f, 0.424f,
+	0.662f, 0.0f, -0.08f, 0.422f, 0.424f, 0.657f, 0.0f, -0.088f, 0.422f, 0.422f, 0.651f, 0.0f, -0.095f, 0.421f, 0.419f, 0.645f, 0.0f, -0.103f, 0.42f, 0.419f,
+	0.638f, 0.0f, -0.109f, 0.42f, 0.419f, 0.631f, 0.0f, -0.115f, 0.419f, 0.419f, 0.624f, 0.0f, -0.12f, 0.419f, 0.419f, 0.617f, 0.0f, -0.125f, 0.419f, 0.419f,
+	0.61f, 0.0f, -0.129f, 0.418f, 0.418f, 0.602f, 0.0f, -0.133f, 0.418f, 0.416f, 0.594f, 0.0f, -0.137f, 0.417f, 0.416f, 0.587f, 0.0f, -0.14f, 0.417f, 0.415f,
+	0.579f, 0.0f, -0.142f, 0.417f, 0.416f, 0.571f, 0.0f, -0.144f, 0.417f, 0.415f, 0.564f, 0.0f, -0.145f, 0.417f, 0.416f, 0.556f, 0.0f, -0.146f, 0.417f, 0.415f,
+	0.549f, 0.0f, -0.146f, 0.417f, 0.415f, 0.541f, 0.0f, -0.146f, 0.417f, 0.415f, 0.535f, 0.0f, -0.145f, 0.417f, 0.416f, 0.53f, 0.0f, -0.143f, 0.418f, 0.418f,
+	0.526f, 0.0f, -0.14f, 0.418f, 0.418f, 0.524f, 0.0f, -0.136f, 0.42f, 0.418f, 0.524f, 0.0f, -0.132f, 0.422f, 0.416f, 0.527f, 0.0f, -0.126f, 0.424f, 0.424f,
+	0.531f, 0.0f, -0.121f, 0.427f, 0.428f, 0.536f, 0.0f, -0.115f, 0.43f, 0.433f, 0.542f, 0.0f, -0.109f, 0.433f, 0.436f, 0.548f, 0.0f, -0.102f, 0.435f, 0.436f,
+	0.555f, 0.0f, -0.095f, 0.436f, 0.437f, 0.562f, 0.0f, -0.088f, 0.437f, 0.438f, 0.568f, 0.0f, -0.081f, 0.437f, 0.438f, 0.575f, 0.0f, -0.073f, 0.438f, 0.438f,
+	0.581f, 0.0f, -0.065f, 0.438f, 0.438f, 0.587f, 0.0f, -0.058f, 0.438f, 0.438f, 0.593f, 0.0f, -0.05f, 0.438f, 0.438f, 0.599f, 0.0f, -0.041f, 0.438f, 0.438f,
+	0.605f, 0.0f, -0.033f, 0.438f, 0.438f, 0.61f, 0.0f, -0.024f, 0.438f, 0.438f, 0.615f, 0.0f, -0.015f, 0.438f, 0.438f, 0.621f, 0.0f, -0.006f, 0.438f, 0.438f,
+	0.626f, 0.0f, 0.004f, 0.438f, 0.438f, 0.631f, 0.0f, 0.013f, 0.437f, 0.438f, 0.636f, 0.0f, 0.023f, 0.436f, 0.438f, 0.641f, 0.0f, 0.032f, 0.434f, 0.438f,
+	0.647f, 0.0f, 0.042f, 0.432f, 0.437f, 0.652f, 0.0f, 0.051f, 0.431f, 0.429f, 0.657f, 0.0f, 0.06f, 0.429f, 0.426f, 0.662f, 0.0f, 0.069f, 0.427f, 0.425f,
+	0.668f, 0.0f, 0.078f, 0.425f, 0.425f, 0.673f, 0.0f, 0.087f, 0.423f, 0.424f, 0.678f, 0.0f, 0.095f, 0.42f, 0.422f, 0.683f, 0.0f, 0.104f, 0.416f, 0.42f,
+	0.688f, 0.0f, 0.112f, 0.411f, 0.421f, 0.693f, 0.0f, 0.12f, 0.403f, 0.417f, 0.698f, 0.0f, 0.128f, 0.394f, 0.411f, 0.702f, 0.0f, 0.135f, 0.382f, 0.404f,
+	0.707f, 0.0f, 0.143f, 0.369f, 0.388f, 0.711f, 0.0f, 0.15f, 0.352f, 0.371f, 0.714f, 0.0f, 0.155f, 0.338f, 0.352f, 0.719f, 0.0f, 0.164f, 0.315f, 0.315f,
+};
+
+static const float data15[44 * GP_PRIM_DATABUF_SIZE] = {
+	-0.085f, 0.0f, -0.816f, 0.138f, 0.138f, -0.079f, 0.0f, -0.825f, 0.246f, 0.309f, -0.074f, 0.0f, -0.832f, 0.302f, 0.34f, -0.067f, 0.0f, -0.84f, 0.335f, 0.352f,
+	-0.059f, 0.0f, -0.848f, 0.357f, 0.374f, -0.05f, 0.0f, -0.855f, 0.371f, 0.378f, -0.041f, 0.0f, -0.861f, 0.382f, 0.383f, -0.031f, 0.0f, -0.866f, 0.391f, 0.396f,
+	-0.021f, 0.0f, -0.871f, 0.398f, 0.401f, -0.011f, 0.0f, -0.874f, 0.404f, 0.407f, -0.001f, 0.0f, -0.877f, 0.409f, 0.411f, 0.01f, 0.0f, -0.878f, 0.415f, 0.412f,
+	0.02f, 0.0f, -0.878f, 0.422f, 0.417f, 0.031f, 0.0f, -0.878f, 0.43f, 0.421f, 0.042f, 0.0f, -0.876f, 0.438f, 0.437f, 0.052f, 0.0f, -0.873f, 0.445f, 0.451f,
+	0.062f, 0.0f, -0.868f, 0.451f, 0.459f, 0.071f, 0.0f, -0.863f, 0.456f, 0.463f, 0.08f, 0.0f, -0.857f, 0.46f, 0.465f, 0.087f, 0.0f, -0.85f, 0.462f, 0.465f,
+	0.094f, 0.0f, -0.842f, 0.461f, 0.465f, 0.098f, 0.0f, -0.835f, 0.458f, 0.467f, 0.101f, 0.0f, -0.827f, 0.451f, 0.457f, 0.103f, 0.0f, -0.82f, 0.436f, 0.451f,
+	0.102f, 0.0f, -0.815f, 0.422f, 0.418f, 0.1f, 0.0f, -0.811f, 0.419f, 0.378f, 0.096f, 0.0f, -0.814f, 0.436f, 0.447f, 0.089f, 0.0f, -0.817f, 0.454f, 0.465f,
+	0.082f, 0.0f, -0.821f, 0.465f, 0.47f, 0.072f, 0.0f, -0.825f, 0.473f, 0.477f, 0.061f, 0.0f, -0.828f, 0.477f, 0.479f, 0.049f, 0.0f, -0.832f, 0.48f, 0.485f,
+	0.036f, 0.0f, -0.834f, 0.483f, 0.48f, 0.023f, 0.0f, -0.836f, 0.484f, 0.485f, 0.01f, 0.0f, -0.838f, 0.486f, 0.487f, -0.003f, 0.0f, -0.84f, 0.486f, 0.488f,
+	-0.016f, 0.0f, -0.84f, 0.486f, 0.489f, -0.027f, 0.0f, -0.84f, 0.485f, 0.485f, -0.039f, 0.0f, -0.839f, 0.484f, 0.484f, -0.049f, 0.0f, -0.837f, 0.483f, 0.485f,
+	-0.058f, 0.0f, -0.834f, 0.48f, 0.481f, -0.066f, 0.0f, -0.83f, 0.473f, 0.479f, -0.072f, 0.0f, -0.827f, 0.462f, 0.472f, -0.081f, 0.0f, -0.823f, 0.442f, 0.442f,
+};
+
+static const float data17[56 * GP_PRIM_DATABUF_SIZE] = {
+	-1.007f, -0.0f, 0.183f, 0.022f, 0.022f, -1.003f, -0.0f, 0.181f, 0.192f, 0.436f, -0.998f, -0.0f, 0.18f, 0.28f, 0.451f, -0.99f, -0.0f, 0.178f, 0.355f, 0.459f,
+	-0.98f, -0.0f, 0.175f, 0.402f, 0.464f, -0.967f, -0.0f, 0.169f, 0.432f, 0.467f, -0.952f, -0.0f, 0.152f, 0.449f, 0.468f, -0.943f, 0.0f, 0.138f, 0.459f, 0.469f,
+	-0.939f, 0.0f, 0.128f, 0.464f, 0.469f, -0.934f, 0.0f, 0.119f, 0.467f, 0.47f, -0.929f, 0.0f, 0.11f, 0.469f, 0.47f, -0.924f, 0.0f, 0.101f, 0.47f, 0.47f,
+	-0.919f, 0.0f, 0.092f, 0.47f, 0.471f, -0.913f, 0.0f, 0.082f, 0.471f, 0.471f, -0.908f, 0.0f, 0.072f, 0.471f, 0.471f, -0.903f, 0.0f, 0.063f, 0.472f, 0.472f,
+	-0.897f, 0.0f, 0.053f, 0.472f, 0.472f, -0.892f, 0.0f, 0.044f, 0.473f, 0.473f, -0.886f, 0.0f, 0.035f, 0.473f, 0.473f, -0.881f, 0.0f, 0.026f, 0.473f, 0.473f,
+	-0.876f, 0.0f, 0.018f, 0.473f, 0.473f, -0.87f, 0.0f, 0.012f, 0.472f, 0.473f, -0.865f, 0.0f, 0.006f, 0.47f, 0.473f, -0.86f, 0.0f, 0.003f, 0.468f, 0.473f,
+	-0.855f, 0.0f, 0.001f, 0.466f, 0.469f, -0.85f, 0.0f, 0.001f, 0.463f, 0.469f, -0.846f, 0.0f, 0.003f, 0.46f, 0.45f, -0.843f, 0.0f, 0.008f, 0.458f, 0.454f,
+	-0.84f, 0.0f, 0.014f, 0.456f, 0.454f, -0.838f, 0.0f, 0.021f, 0.455f, 0.454f, -0.836f, 0.0f, 0.03f, 0.453f, 0.455f, -0.835f, 0.0f, 0.039f, 0.451f, 0.455f,
+	-0.835f, 0.0f, 0.049f, 0.449f, 0.453f, -0.836f, 0.0f, 0.059f, 0.447f, 0.445f, -0.837f, 0.0f, 0.068f, 0.445f, 0.441f, -0.84f, 0.0f, 0.078f, 0.443f, 0.44f,
+	-0.843f, 0.0f, 0.087f, 0.442f, 0.44f, -0.846f, 0.0f, 0.095f, 0.442f, 0.44f, -0.851f, -0.0f, 0.103f, 0.441f, 0.441f, -0.855f, -0.0f, 0.111f, 0.441f, 0.44f,
+	-0.86f, -0.0f, 0.119f, 0.441f, 0.441f, -0.865f, -0.0f, 0.127f, 0.441f, 0.441f, -0.871f, -0.0f, 0.134f, 0.441f, 0.441f, -0.877f, -0.0f, 0.141f, 0.441f, 0.441f,
+	-0.883f, -0.0f, 0.149f, 0.441f, 0.442f, -0.889f, -0.0f, 0.156f, 0.441f, 0.441f, -0.896f, -0.0f, 0.163f, 0.441f, 0.442f, -0.904f, -0.0f, 0.169f, 0.442f, 0.441f,
+	-0.913f, -0.0f, 0.176f, 0.442f, 0.441f, -0.925f, -0.0f, 0.183f, 0.443f, 0.441f, -0.941f, -0.0f, 0.19f, 0.444f, 0.442f, -0.956f, -0.0f, 0.195f, 0.446f, 0.443f,
+	-0.971f, -0.0f, 0.198f, 0.448f, 0.443f, -0.983f, -0.0f, 0.198f, 0.451f, 0.452f, -0.992f, -0.0f, 0.198f, 0.454f, 0.456f, -1.001f, 0.0f, 0.196f, 0.457f, 0.457f,
+};
+
+static const float data18[59 * GP_PRIM_DATABUF_SIZE] = {
+	0.782f, 0.0f, 0.099f, 0.04f, 0.04f, 0.779f, 0.0f, 0.088f, 0.108f, 0.34f, 0.777f, 0.0f, 0.08f, 0.149f, 0.35f, 0.774f, 0.0f, 0.071f, 0.194f, 0.352f,
+	0.772f, 0.0f, 0.062f, 0.231f, 0.352f, 0.771f, 0.0f, 0.053f, 0.263f, 0.353f, 0.769f, 0.0f, 0.044f, 0.289f, 0.353f, 0.768f, 0.0f, 0.036f, 0.31f, 0.353f,
+	0.767f, 0.0f, 0.029f, 0.327f, 0.353f, 0.767f, 0.0f, 0.023f, 0.341f, 0.353f, 0.767f, 0.0f, 0.017f, 0.353f, 0.353f, 0.768f, 0.0f, 0.013f, 0.363f, 0.353f,
+	0.769f, 0.0f, 0.01f, 0.373f, 0.353f, 0.771f, 0.0f, 0.009f, 0.382f, 0.351f, 0.773f, 0.0f, 0.008f, 0.39f, 0.393f, 0.776f, 0.0f, 0.009f, 0.399f, 0.41f,
+	0.779f, 0.0f, 0.011f, 0.407f, 0.425f, 0.783f, 0.0f, 0.015f, 0.415f, 0.434f, 0.787f, 0.0f, 0.019f, 0.423f, 0.44f, 0.792f, 0.0f, 0.024f, 0.429f, 0.441f,
+	0.797f, 0.0f, 0.03f, 0.435f, 0.444f, 0.802f, 0.0f, 0.037f, 0.441f, 0.447f, 0.807f, 0.0f, 0.044f, 0.445f, 0.453f, 0.813f, 0.0f, 0.051f, 0.449f, 0.457f,
+	0.819f, 0.0f, 0.058f, 0.452f, 0.458f, 0.825f, 0.0f, 0.066f, 0.455f, 0.46f, 0.831f, 0.0f, 0.074f, 0.457f, 0.462f, 0.838f, 0.0f, 0.082f, 0.459f, 0.462f,
+	0.845f, 0.0f, 0.09f, 0.461f, 0.462f, 0.852f, 0.0f, 0.098f, 0.462f, 0.463f, 0.859f, 0.0f, 0.106f, 0.463f, 0.464f, 0.867f, 0.0f, 0.113f, 0.464f, 0.464f,
+	0.874f, 0.0f, 0.121f, 0.465f, 0.465f, 0.882f, 0.0f, 0.129f, 0.465f, 0.465f, 0.889f, 0.0f, 0.136f, 0.466f, 0.466f, 0.897f, 0.0f, 0.143f, 0.466f, 0.467f,
+	0.904f, 0.0f, 0.15f, 0.467f, 0.466f, 0.911f, 0.0f, 0.157f, 0.467f, 0.467f, 0.916f, 0.0f, 0.163f, 0.468f, 0.468f, 0.921f, 0.0f, 0.169f, 0.468f, 0.469f,
+	0.924f, 0.0f, 0.173f, 0.468f, 0.469f, 0.926f, 0.0f, 0.177f, 0.469f, 0.468f, 0.925f, 0.0f, 0.18f, 0.469f, 0.468f, 0.922f, 0.0f, 0.181f, 0.469f, 0.469f,
+	0.918f, 0.0f, 0.181f, 0.469f, 0.469f, 0.912f, 0.0f, 0.18f, 0.469f, 0.469f, 0.905f, 0.0f, 0.178f, 0.468f, 0.47f, 0.898f, 0.0f, 0.175f, 0.466f, 0.471f,
+	0.89f, 0.0f, 0.172f, 0.462f, 0.469f, 0.882f, 0.0f, 0.168f, 0.454f, 0.468f, 0.874f, 0.0f, 0.164f, 0.442f, 0.467f, 0.866f, 0.0f, 0.159f, 0.423f, 0.467f,
+	0.858f, 0.0f, 0.154f, 0.398f, 0.468f, 0.851f, 0.0f, 0.149f, 0.366f, 0.468f, 0.844f, 0.0f, 0.144f, 0.326f, 0.469f, 0.837f, 0.0f, 0.139f, 0.282f, 0.469f,
+	0.83f, 0.0f, 0.134f, 0.231f, 0.467f, 0.824f, 0.0f, 0.13f, 0.184f, 0.415f, 0.816f, 0.0f, 0.124f, 0.111f, 0.111f,
+};
+
+static const float data19[100 * GP_PRIM_DATABUF_SIZE] = {
+	-0.279f, 0.0f, 0.568f, 0.154f, 0.154f, -0.266f, 0.0f, 0.569f, 0.249f, 0.318f, -0.258f, 0.0f, 0.57f, 0.296f, 0.357f, -0.248f, 0.0f, 0.571f, 0.337f, 0.383f,
+	-0.238f, 0.0f, 0.571f, 0.363f, 0.396f, -0.229f, 0.0f, 0.571f, 0.381f, 0.403f, -0.219f, 0.0f, 0.57f, 0.392f, 0.407f, -0.209f, 0.0f, 0.568f, 0.399f, 0.407f,
+	-0.2f, 0.0f, 0.566f, 0.403f, 0.408f, -0.19f, 0.0f, 0.563f, 0.406f, 0.41f, -0.181f, 0.0f, 0.559f, 0.407f, 0.41f, -0.171f, 0.0f, 0.555f, 0.409f, 0.41f,
+	-0.161f, 0.0f, 0.551f, 0.409f, 0.411f, -0.152f, 0.0f, 0.546f, 0.41f, 0.411f, -0.142f, 0.0f, 0.542f, 0.41f, 0.412f, -0.132f, 0.0f, 0.537f, 0.411f, 0.411f,
+	-0.122f, 0.0f, 0.533f, 0.411f, 0.411f, -0.112f, 0.0f, 0.528f, 0.411f, 0.412f, -0.102f, 0.0f, 0.524f, 0.411f, 0.412f, -0.092f, 0.0f, 0.519f, 0.41f, 0.412f,
+	-0.081f, 0.0f, 0.515f, 0.407f, 0.411f, -0.071f, 0.0f, 0.511f, 0.403f, 0.408f, -0.061f, 0.0f, 0.507f, 0.399f, 0.401f, -0.051f, 0.0f, 0.503f, 0.394f, 0.395f,
+	-0.041f, 0.0f, 0.499f, 0.39f, 0.388f, -0.031f, 0.0f, 0.495f, 0.386f, 0.383f, -0.021f, 0.0f, 0.491f, 0.383f, 0.38f, -0.011f, 0.0f, 0.488f, 0.381f, 0.378f,
+	-0.001f, 0.0f, 0.486f, 0.379f, 0.377f, 0.009f, 0.0f, 0.484f, 0.378f, 0.377f, 0.019f, 0.0f, 0.483f, 0.377f, 0.375f, 0.03f, 0.0f, 0.482f, 0.377f, 0.375f,
+	0.041f, 0.0f, 0.482f, 0.378f, 0.376f, 0.051f, 0.0f, 0.483f, 0.379f, 0.376f, 0.062f, 0.0f, 0.484f, 0.381f, 0.376f, 0.073f, 0.0f, 0.486f, 0.385f, 0.379f,
+	0.085f, 0.0f, 0.488f, 0.389f, 0.382f, 0.096f, 0.0f, 0.491f, 0.395f, 0.392f, 0.108f, 0.0f, 0.494f, 0.402f, 0.4f, 0.12f, 0.0f, 0.497f, 0.409f, 0.409f,
+	0.132f, 0.0f, 0.501f, 0.415f, 0.416f, 0.144f, 0.0f, 0.505f, 0.421f, 0.427f, 0.157f, 0.0f, 0.509f, 0.425f, 0.43f, 0.17f, 0.0f, 0.513f, 0.429f, 0.433f,
+	0.181f, 0.0f, 0.517f, 0.431f, 0.433f, 0.192f, 0.0f, 0.52f, 0.433f, 0.434f, 0.201f, 0.0f, 0.522f, 0.433f, 0.435f, 0.208f, 0.0f, 0.524f, 0.433f, 0.435f,
+	0.213f, 0.0f, 0.524f, 0.432f, 0.436f, 0.216f, 0.0f, 0.523f, 0.431f, 0.435f, 0.217f, 0.0f, 0.521f, 0.43f, 0.426f, 0.215f, 0.0f, 0.518f, 0.429f, 0.427f,
+	0.213f, 0.0f, 0.515f, 0.428f, 0.427f, 0.208f, 0.0f, 0.511f, 0.428f, 0.427f, 0.203f, 0.0f, 0.506f, 0.428f, 0.427f, 0.196f, 0.0f, 0.502f, 0.428f, 0.427f,
+	0.189f, 0.0f, 0.497f, 0.428f, 0.427f, 0.181f, 0.0f, 0.492f, 0.428f, 0.427f, 0.173f, 0.0f, 0.487f, 0.428f, 0.428f, 0.163f, 0.0f, 0.482f, 0.429f, 0.428f,
+	0.154f, 0.0f, 0.477f, 0.429f, 0.429f, 0.145f, 0.0f, 0.472f, 0.43f, 0.43f, 0.135f, 0.0f, 0.467f, 0.431f, 0.431f, 0.125f, 0.0f, 0.462f, 0.432f, 0.43f,
+	0.116f, 0.0f, 0.457f, 0.433f, 0.431f, 0.106f, 0.0f, 0.453f, 0.435f, 0.434f, 0.096f, 0.0f, 0.448f, 0.436f, 0.436f, 0.086f, 0.0f, 0.444f, 0.437f, 0.438f,
+	0.076f, 0.0f, 0.44f, 0.438f, 0.44f, 0.065f, 0.0f, 0.436f, 0.439f, 0.441f, 0.055f, 0.0f, 0.433f, 0.44f, 0.441f, 0.044f, 0.0f, 0.431f, 0.441f, 0.442f,
+	0.033f, 0.0f, 0.429f, 0.441f, 0.442f, 0.022f, 0.0f, 0.427f, 0.441f, 0.442f, 0.011f, 0.0f, 0.426f, 0.442f, 0.443f, -0.0f, 0.0f, 0.426f, 0.442f, 0.442f,
+	-0.011f, 0.0f, 0.426f, 0.442f, 0.442f, -0.022f, 0.0f, 0.427f, 0.442f, 0.442f, -0.033f, 0.0f, 0.429f, 0.442f, 0.442f, -0.042f, 0.0f, 0.432f, 0.441f, 0.442f,
+	-0.052f, 0.0f, 0.435f, 0.441f, 0.441f, -0.061f, 0.0f, 0.439f, 0.441f, 0.441f, -0.07f, 0.0f, 0.443f, 0.441f, 0.441f, -0.078f, 0.0f, 0.448f, 0.441f, 0.441f,
+	-0.087f, 0.0f, 0.453f, 0.441f, 0.442f, -0.095f, 0.0f, 0.458f, 0.441f, 0.441f, -0.104f, 0.0f, 0.463f, 0.44f, 0.44f, -0.113f, 0.0f, 0.468f, 0.44f, 0.44f,
+	-0.122f, 0.0f, 0.473f, 0.44f, 0.44f, -0.132f, 0.0f, 0.479f, 0.44f, 0.44f, -0.143f, 0.0f, 0.485f, 0.44f, 0.44f, -0.154f, 0.0f, 0.491f, 0.44f, 0.44f,
+	-0.165f, 0.0f, 0.498f, 0.44f, 0.44f, -0.176f, 0.0f, 0.504f, 0.439f, 0.439f, -0.187f, 0.0f, 0.51f, 0.435f, 0.44f, -0.198f, 0.0f, 0.516f, 0.424f, 0.44f,
+	-0.209f, 0.0f, 0.522f, 0.393f, 0.44f, -0.219f, 0.0f, 0.527f, 0.324f, 0.44f, -0.228f, 0.0f, 0.532f, 0.222f, 0.404f, -0.241f, 0.0f, 0.538f, 0.037f, 0.037f,
+};
+
+static const float data20[136 * GP_PRIM_DATABUF_SIZE] = {
+	0.331f, 0.0f, -0.036f, 0.065f, 0.065f, 0.322f, 0.0f, -0.034f, 0.239f, 0.293f, 0.317f, 0.0f, -0.032f, 0.316f, 0.339f, 0.31f, 0.0f, -0.029f, 0.348f, 0.355f,
+	0.302f, 0.0f, -0.027f, 0.364f, 0.368f, 0.295f, 0.0f, -0.023f, 0.373f, 0.374f, 0.287f, 0.0f, -0.02f, 0.381f, 0.381f, 0.279f, 0.0f, -0.015f, 0.388f, 0.391f,
+	0.271f, 0.0f, -0.01f, 0.392f, 0.394f, 0.263f, 0.0f, -0.004f, 0.395f, 0.396f, 0.255f, 0.0f, 0.002f, 0.397f, 0.397f, 0.247f, 0.0f, 0.008f, 0.399f, 0.4f,
+	0.239f, 0.0f, 0.016f, 0.401f, 0.401f, 0.232f, -0.0f, 0.024f, 0.404f, 0.404f, 0.226f, 0.0f, 0.031f, 0.406f, 0.407f, 0.221f, 0.0f, 0.038f, 0.409f, 0.409f,
+	0.215f, 0.0f, 0.045f, 0.412f, 0.412f, 0.21f, 0.0f, 0.054f, 0.415f, 0.415f, 0.205f, 0.0f, 0.063f, 0.417f, 0.417f, 0.201f, 0.0f, 0.073f, 0.42f, 0.421f,
+	0.197f, 0.0f, 0.083f, 0.421f, 0.421f, 0.193f, -0.0f, 0.094f, 0.423f, 0.423f, 0.19f, -0.0f, 0.104f, 0.424f, 0.424f, 0.187f, -0.0f, 0.114f, 0.424f, 0.425f,
+	0.185f, -0.0f, 0.125f, 0.425f, 0.425f, 0.183f, -0.0f, 0.135f, 0.425f, 0.425f, 0.182f, -0.0f, 0.146f, 0.426f, 0.425f, 0.181f, -0.0f, 0.157f, 0.426f, 0.425f,
+	0.18f, -0.0f, 0.168f, 0.426f, 0.426f, 0.18f, -0.0f, 0.179f, 0.427f, 0.427f, 0.181f, -0.0f, 0.189f, 0.427f, 0.427f, 0.182f, -0.0f, 0.199f, 0.427f, 0.427f,
+	0.183f, -0.0f, 0.208f, 0.427f, 0.428f, 0.185f, -0.0f, 0.218f, 0.428f, 0.427f, 0.187f, -0.0f, 0.226f, 0.428f, 0.427f, 0.19f, -0.0f, 0.235f, 0.429f, 0.427f,
+	0.192f, -0.0f, 0.243f, 0.43f, 0.428f, 0.196f, -0.0f, 0.252f, 0.431f, 0.431f, 0.199f, -0.0f, 0.26f, 0.431f, 0.432f, 0.203f, -0.0f, 0.268f, 0.432f, 0.433f,
+	0.207f, -0.0f, 0.276f, 0.433f, 0.433f, 0.212f, -0.0f, 0.283f, 0.434f, 0.434f, 0.216f, -0.0f, 0.291f, 0.434f, 0.435f, 0.221f, -0.0f, 0.298f, 0.435f, 0.436f,
+	0.227f, -0.0f, 0.305f, 0.435f, 0.435f, 0.232f, -0.0f, 0.311f, 0.436f, 0.436f, 0.238f, -0.0f, 0.317f, 0.436f, 0.436f, 0.243f, -0.0f, 0.323f, 0.436f, 0.436f,
+	0.249f, -0.0f, 0.329f, 0.437f, 0.436f, 0.255f, -0.0f, 0.334f, 0.438f, 0.437f, 0.262f, -0.0f, 0.339f, 0.44f, 0.437f, 0.268f, -0.0f, 0.344f, 0.442f, 0.441f,
+	0.274f, 0.0f, 0.348f, 0.444f, 0.446f, 0.281f, 0.0f, 0.352f, 0.445f, 0.447f, 0.287f, 0.0f, 0.355f, 0.446f, 0.447f, 0.293f, 0.0f, 0.358f, 0.446f, 0.447f,
+	0.299f, 0.0f, 0.361f, 0.447f, 0.447f, 0.306f, 0.0f, 0.363f, 0.447f, 0.448f, 0.312f, 0.0f, 0.366f, 0.447f, 0.448f, 0.318f, 0.0f, 0.368f, 0.448f, 0.448f,
+	0.325f, 0.0f, 0.369f, 0.448f, 0.448f, 0.331f, 0.0f, 0.371f, 0.448f, 0.448f, 0.338f, 0.0f, 0.372f, 0.448f, 0.448f, 0.345f, 0.0f, 0.372f, 0.448f, 0.448f,
+	0.352f, 0.0f, 0.372f, 0.448f, 0.448f, 0.359f, 0.0f, 0.372f, 0.448f, 0.449f, 0.366f, 0.0f, 0.371f, 0.448f, 0.448f, 0.373f, 0.0f, 0.37f, 0.448f, 0.449f,
+	0.38f, 0.0f, 0.369f, 0.449f, 0.449f, 0.387f, 0.0f, 0.367f, 0.449f, 0.449f, 0.393f, 0.0f, 0.365f, 0.449f, 0.449f, 0.4f, 0.0f, 0.363f, 0.449f, 0.45f,
+	0.406f, 0.0f, 0.36f, 0.45f, 0.45f, 0.412f, -0.0f, 0.357f, 0.45f, 0.45f, 0.418f, -0.0f, 0.354f, 0.45f, 0.451f, 0.424f, -0.0f, 0.351f, 0.45f, 0.451f,
+	0.43f, -0.0f, 0.347f, 0.45f, 0.451f, 0.436f, -0.0f, 0.343f, 0.45f, 0.451f, 0.443f, -0.0f, 0.339f, 0.45f, 0.45f, 0.449f, -0.0f, 0.334f, 0.45f, 0.451f,
+	0.455f, -0.0f, 0.329f, 0.451f, 0.451f, 0.46f, -0.0f, 0.323f, 0.451f, 0.451f, 0.466f, -0.0f, 0.318f, 0.451f, 0.451f, 0.472f, -0.0f, 0.311f, 0.452f, 0.452f,
+	0.477f, -0.0f, 0.305f, 0.452f, 0.453f, 0.482f, -0.0f, 0.298f, 0.452f, 0.453f, 0.487f, -0.0f, 0.291f, 0.453f, 0.453f, 0.492f, -0.0f, 0.284f, 0.453f, 0.453f,
+	0.496f, -0.0f, 0.277f, 0.453f, 0.453f, 0.5f, -0.0f, 0.269f, 0.453f, 0.454f, 0.504f, -0.0f, 0.261f, 0.453f, 0.454f, 0.508f, -0.0f, 0.252f, 0.454f, 0.454f,
+	0.511f, -0.0f, 0.244f, 0.454f, 0.454f, 0.514f, -0.0f, 0.235f, 0.454f, 0.455f, 0.517f, -0.0f, 0.225f, 0.454f, 0.455f, 0.519f, -0.0f, 0.216f, 0.454f, 0.455f,
+	0.521f, -0.0f, 0.205f, 0.455f, 0.455f, 0.523f, -0.0f, 0.194f, 0.455f, 0.455f, 0.524f, -0.0f, 0.182f, 0.455f, 0.455f, 0.524f, -0.0f, 0.169f, 0.455f, 0.456f,
+	0.524f, -0.0f, 0.157f, 0.455f, 0.456f, 0.523f, -0.0f, 0.145f, 0.455f, 0.456f, 0.522f, -0.0f, 0.133f, 0.455f, 0.456f, 0.52f, -0.0f, 0.122f, 0.456f, 0.456f,
+	0.518f, -0.0f, 0.11f, 0.456f, 0.456f, 0.515f, -0.0f, 0.1f, 0.456f, 0.456f, 0.513f, -0.0f, 0.09f, 0.456f, 0.457f, 0.509f, -0.0f, 0.081f, 0.456f, 0.457f,
+	0.506f, -0.0f, 0.072f, 0.457f, 0.457f, 0.502f, -0.0f, 0.064f, 0.457f, 0.457f, 0.498f, -0.0f, 0.056f, 0.457f, 0.457f, 0.494f, -0.0f, 0.049f, 0.457f, 0.457f,
+	0.49f, -0.0f, 0.041f, 0.458f, 0.457f, 0.485f, -0.0f, 0.034f, 0.458f, 0.457f, 0.48f, -0.0f, 0.028f, 0.458f, 0.458f, 0.475f, -0.0f, 0.022f, 0.458f, 0.458f,
+	0.47f, -0.0f, 0.016f, 0.458f, 0.458f, 0.465f, -0.0f, 0.011f, 0.459f, 0.458f, 0.46f, -0.0f, 0.006f, 0.459f, 0.458f, 0.454f, -0.0f, 0.001f, 0.46f, 0.459f,
+	0.449f, 0.0f, -0.003f, 0.464f, 0.463f, 0.443f, 0.0f, -0.007f, 0.467f, 0.468f, 0.438f, 0.0f, -0.011f, 0.469f, 0.469f, 0.432f, 0.0f, -0.015f, 0.471f, 0.47f,
+	0.426f, 0.0f, -0.018f, 0.477f, 0.478f, 0.42f, 0.0f, -0.021f, 0.478f, 0.478f, 0.414f, 0.0f, -0.024f, 0.478f, 0.478f, 0.408f, 0.0f, -0.027f, 0.479f, 0.479f,
+	0.402f, 0.0f, -0.029f, 0.48f, 0.48f, 0.395f, 0.0f, -0.031f, 0.48f, 0.48f, 0.389f, 0.0f, -0.033f, 0.482f, 0.482f, 0.382f, 0.0f, -0.035f, 0.482f, 0.482f,
+	0.376f, 0.0f, -0.036f, 0.482f, 0.482f, 0.369f, 0.0f, -0.037f, 0.48f, 0.482f, 0.364f, 0.0f, -0.037f, 0.457f, 0.485f, 0.356f, 0.0f, -0.038f, 0.32f, 0.32f,
+};
+
+static const float data21[353 * GP_PRIM_DATABUF_SIZE] = {
+	-0.382f, 0.0f, 0.397f, 0.0f, 1.0f, -0.386f, 0.0f, 0.394f, 0.0f, 1.0f, -0.389f, 0.0f, 0.392f, 0.0f, 1.0f, -0.392f, 0.0f, 0.39f, 0.0f, 1.0f,
+	-0.395f, 0.0f, 0.388f, 0.0f, 1.0f, -0.399f, 0.0f, 0.385f, 0.0f, 1.0f, -0.402f, 0.0f, 0.383f, 0.0f, 1.0f, -0.405f, 0.0f, 0.381f, 0.0f, 1.0f,
+	-0.408f, 0.0f, 0.379f, 0.0f, 1.0f, -0.411f, 0.0f, 0.377f, 0.0f, 1.0f, -0.414f, 0.0f, 0.375f, 0.0f, 1.0f, -0.417f, 0.0f, 0.372f, 0.0f, 1.0f,
+	-0.42f, 0.0f, 0.37f, 0.0f, 1.0f, -0.423f, 0.0f, 0.368f, 0.0f, 1.0f, -0.425f, 0.0f, 0.366f, 0.0f, 1.0f, -0.428f, 0.0f, 0.364f, 0.0f, 1.0f,
+	-0.431f, 0.0f, 0.362f, 0.0f, 1.0f, -0.433f, 0.0f, 0.359f, 0.0f, 1.0f, -0.436f, 0.0f, 0.357f, 0.0f, 1.0f, -0.438f, 0.0f, 0.355f, 0.0f, 1.0f,
+	-0.441f, 0.0f, 0.353f, 0.0f, 1.0f, -0.443f, 0.0f, 0.351f, 0.0f, 1.0f, -0.445f, 0.0f, 0.349f, 0.0f, 1.0f, -0.447f, 0.0f, 0.346f, 0.0f, 1.0f,
+	-0.45f, 0.0f, 0.344f, 0.0f, 1.0f, -0.452f, 0.0f, 0.342f, 0.0f, 1.0f, -0.454f, 0.0f, 0.34f, 0.0f, 1.0f, -0.456f, 0.0f, 0.337f, 0.0f, 1.0f,
+	-0.458f, 0.0f, 0.335f, 0.0f, 1.0f, -0.46f, 0.0f, 0.333f, 0.0f, 1.0f, -0.462f, 0.0f, 0.33f, 0.0f, 1.0f, -0.464f, 0.0f, 0.328f, 0.0f, 1.0f,
+	-0.466f, 0.0f, 0.326f, 0.0f, 1.0f, -0.468f, 0.0f, 0.323f, 0.0f, 1.0f, -0.47f, 0.0f, 0.321f, 0.0f, 1.0f, -0.472f, 0.0f, 0.319f, 0.0f, 1.0f,
+	-0.474f, 0.0f, 0.316f, 0.0f, 1.0f, -0.475f, 0.0f, 0.314f, 0.0f, 1.0f, -0.477f, 0.0f, 0.311f, 0.0f, 1.0f, -0.479f, 0.0f, 0.309f, 0.0f, 1.0f,
+	-0.481f, 0.0f, 0.307f, 0.0f, 1.0f, -0.482f, 0.0f, 0.304f, 0.0f, 1.0f, -0.484f, 0.0f, 0.302f, 0.0f, 1.0f, -0.486f, 0.0f, 0.299f, 0.0f, 1.0f,
+	-0.487f, 0.0f, 0.297f, 0.0f, 1.0f, -0.489f, 0.0f, 0.294f, 0.0f, 1.0f, -0.49f, 0.0f, 0.292f, 0.0f, 1.0f, -0.492f, 0.0f, 0.289f, 0.0f, 1.0f,
+	-0.494f, 0.0f, 0.286f, 0.0f, 1.0f, -0.495f, 0.0f, 0.284f, 0.0f, 1.0f, -0.497f, 0.0f, 0.281f, 0.0f, 1.0f, -0.498f, 0.0f, 0.279f, 0.001f, 1.0f,
+	-0.499f, 0.0f, 0.276f, 0.001f, 1.0f, -0.501f, 0.0f, 0.273f, 0.002f, 1.0f, -0.502f, 0.0f, 0.271f, 0.003f, 1.0f, -0.504f, 0.0f, 0.268f, 0.005f, 1.0f,
+	-0.505f, 0.0f, 0.265f, 0.008f, 1.0f, -0.506f, 0.0f, 0.262f, 0.011f, 1.0f, -0.508f, 0.0f, 0.259f, 0.016f, 1.0f, -0.509f, 0.0f, 0.256f, 0.021f, 1.0f,
+	-0.51f, 0.0f, 0.254f, 0.027f, 1.0f, -0.512f, 0.0f, 0.251f, 0.035f, 1.0f, -0.513f, 0.0f, 0.248f, 0.043f, 1.0f, -0.514f, 0.0f, 0.245f, 0.053f, 1.0f,
+	-0.515f, 0.0f, 0.242f, 0.064f, 1.0f, -0.516f, 0.0f, 0.239f, 0.076f, 1.0f, -0.517f, 0.0f, 0.235f, 0.09f, 1.0f, -0.519f, 0.0f, 0.232f, 0.105f, 1.0f,
+	-0.52f, 0.0f, 0.229f, 0.122f, 1.0f, -0.521f, 0.0f, 0.226f, 0.14f, 1.0f, -0.521f, 0.0f, 0.222f, 0.159f, 1.0f, -0.522f, 0.0f, 0.219f, 0.179f, 1.0f,
+	-0.523f, 0.0f, 0.216f, 0.2f, 1.0f, -0.524f, 0.0f, 0.212f, 0.221f, 1.0f, -0.525f, 0.0f, 0.209f, 0.243f, 1.0f, -0.526f, 0.0f, 0.205f, 0.265f, 1.0f,
+	-0.526f, 0.0f, 0.202f, 0.286f, 1.0f, -0.527f, 0.0f, 0.198f, 0.306f, 1.0f, -0.527f, 0.0f, 0.195f, 0.326f, 1.0f, -0.528f, 0.0f, 0.191f, 0.345f, 1.0f,
+	-0.528f, 0.0f, 0.187f, 0.363f, 1.0f, -0.529f, 0.0f, 0.184f, 0.38f, 1.0f, -0.529f, 0.0f, 0.18f, 0.395f, 1.0f, -0.529f, 0.0f, 0.176f, 0.41f, 1.0f,
+	-0.53f, 0.0f, 0.173f, 0.424f, 1.0f, -0.53f, 0.0f, 0.169f, 0.438f, 1.0f, -0.53f, 0.0f, 0.165f, 0.452f, 1.0f, -0.53f, 0.0f, 0.161f, 0.465f, 1.0f,
+	-0.53f, 0.0f, 0.157f, 0.478f, 1.0f, -0.53f, 0.0f, 0.154f, 0.492f, 1.0f, -0.53f, 0.0f, 0.15f, 0.505f, 1.0f, -0.53f, 0.0f, 0.146f, 0.517f, 1.0f,
+	-0.53f, 0.0f, 0.142f, 0.53f, 1.0f, -0.529f, 0.0f, 0.138f, 0.542f, 1.0f, -0.529f, 0.0f, 0.134f, 0.553f, 1.0f, -0.528f, 0.0f, 0.13f, 0.564f, 1.0f,
+	-0.528f, 0.0f, 0.127f, 0.574f, 1.0f, -0.527f, 0.0f, 0.123f, 0.583f, 1.0f, -0.527f, 0.0f, 0.119f, 0.592f, 1.0f, -0.526f, 0.0f, 0.115f, 0.6f, 1.0f,
+	-0.526f, 0.0f, 0.111f, 0.608f, 1.0f, -0.525f, 0.0f, 0.108f, 0.615f, 1.0f, -0.524f, 0.0f, 0.104f, 0.622f, 1.0f, -0.523f, 0.0f, 0.1f, 0.628f, 1.0f,
+	-0.522f, 0.0f, 0.097f, 0.635f, 1.0f, -0.521f, 0.0f, 0.093f, 0.641f, 1.0f, -0.52f, 0.0f, 0.089f, 0.647f, 1.0f, -0.519f, 0.0f, 0.086f, 0.653f, 1.0f,
+	-0.518f, 0.0f, 0.082f, 0.659f, 1.0f, -0.517f, 0.0f, 0.079f, 0.664f, 1.0f, -0.515f, 0.0f, 0.075f, 0.67f, 1.0f, -0.514f, 0.0f, 0.072f, 0.675f, 1.0f,
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+	-0.507f, 0.0f, 0.056f, 0.7f, 1.0f, -0.505f, 0.0f, 0.053f, 0.704f, 1.0f, -0.504f, 0.0f, 0.049f, 0.709f, 1.0f, -0.502f, 0.0f, 0.046f, 0.714f, 1.0f,
+	-0.5f, 0.0f, 0.043f, 0.719f, 1.0f, -0.499f, 0.0f, 0.04f, 0.724f, 1.0f, -0.497f, 0.0f, 0.038f, 0.73f, 1.0f, -0.495f, 0.0f, 0.035f, 0.735f, 1.0f,
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+	-0.48f, -0.0f, 0.013f, 0.79f, 1.0f, -0.478f, -0.0f, 0.01f, 0.795f, 1.0f, -0.476f, -0.0f, 0.008f, 0.8f, 1.0f, -0.474f, -0.0f, 0.006f, 0.804f, 1.0f,
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+	-0.454f, -0.0f, -0.012f, 0.825f, 1.0f, -0.451f, -0.0f, -0.014f, 0.826f, 1.0f, -0.448f, -0.0f, -0.016f, 0.827f, 1.0f, -0.445f, -0.0f, -0.018f, 0.828f, 1.0f,
+	-0.442f, -0.0f, -0.02f, 0.829f, 1.0f, -0.439f, -0.0f, -0.022f, 0.829f, 1.0f, -0.436f, -0.0f, -0.024f, 0.83f, 1.0f, -0.433f, -0.0f, -0.026f, 0.83f, 1.0f,
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+	-0.417f, 0.0f, -0.033f, 0.831f, 1.0f, -0.414f, 0.0f, -0.034f, 0.831f, 1.0f, -0.411f, 0.0f, -0.035f, 0.831f, 1.0f, -0.408f, 0.0f, -0.037f, 0.831f, 1.0f,
+	-0.405f, 0.0f, -0.038f, 0.831f, 1.0f, -0.402f, 0.0f, -0.039f, 0.831f, 1.0f, -0.399f, 0.0f, -0.039f, 0.831f, 1.0f, -0.396f, 0.0f, -0.04f, 0.832f, 1.0f,
+	-0.393f, 0.0f, -0.041f, 0.832f, 1.0f, -0.389f, 0.0f, -0.042f, 0.832f, 1.0f, -0.386f, 0.0f, -0.043f, 0.832f, 1.0f, -0.383f, 0.0f, -0.044f, 0.832f, 1.0f,
+	-0.379f, 0.0f, -0.044f, 0.832f, 1.0f, -0.376f, 0.0f, -0.045f, 0.832f, 1.0f, -0.372f, 0.0f, -0.045f, 0.832f, 1.0f, -0.369f, 0.0f, -0.046f, 0.832f, 1.0f,
+	-0.366f, 0.0f, -0.047f, 0.832f, 1.0f, -0.362f, 0.0f, -0.047f, 0.832f, 1.0f, -0.359f, 0.0f, -0.047f, 0.831f, 1.0f, -0.355f, 0.0f, -0.048f, 0.831f, 1.0f,
+	-0.352f, 0.0f, -0.048f, 0.83f, 1.0f, -0.348f, 0.0f, -0.048f, 0.83f, 1.0f, -0.345f, 0.0f, -0.049f, 0.829f, 1.0f, -0.341f, 0.0f, -0.049f, 0.828f, 1.0f,
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+	-0.323f, 0.0f, -0.048f, 0.816f, 1.0f, -0.32f, 0.0f, -0.048f, 0.811f, 1.0f, -0.316f, 0.0f, -0.048f, 0.804f, 1.0f, -0.313f, 0.0f, -0.048f, 0.797f, 1.0f,
+	-0.309f, 0.0f, -0.047f, 0.79f, 1.0f, -0.306f, 0.0f, -0.047f, 0.782f, 1.0f, -0.302f, 0.0f, -0.046f, 0.774f, 1.0f, -0.299f, 0.0f, -0.045f, 0.767f, 1.0f,
+	-0.295f, 0.0f, -0.044f, 0.76f, 1.0f, -0.292f, 0.0f, -0.044f, 0.753f, 1.0f, -0.288f, 0.0f, -0.043f, 0.748f, 1.0f, -0.285f, 0.0f, -0.042f, 0.742f, 1.0f,
+	-0.282f, 0.0f, -0.041f, 0.738f, 1.0f, -0.278f, 0.0f, -0.04f, 0.734f, 1.0f, -0.275f, 0.0f, -0.039f, 0.73f, 1.0f, -0.272f, 0.0f, -0.037f, 0.726f, 1.0f,
+	-0.269f, 0.0f, -0.036f, 0.723f, 1.0f, -0.266f, 0.0f, -0.035f, 0.72f, 1.0f, -0.263f, 0.0f, -0.034f, 0.717f, 1.0f, -0.26f, 0.0f, -0.032f, 0.713f, 1.0f,
+	-0.257f, 0.0f, -0.031f, 0.71f, 1.0f, -0.255f, 0.0f, -0.029f, 0.706f, 1.0f, -0.252f, 0.0f, -0.028f, 0.702f, 1.0f, -0.249f, 0.0f, -0.026f, 0.698f, 1.0f,
+	-0.247f, 0.0f, -0.025f, 0.693f, 1.0f, -0.244f, 0.0f, -0.023f, 0.688f, 1.0f, -0.242f, 0.0f, -0.021f, 0.684f, 1.0f, -0.239f, 0.0f, -0.02f, 0.679f, 1.0f,
+	-0.237f, 0.0f, -0.018f, 0.675f, 1.0f, -0.234f, 0.0f, -0.016f, 0.671f, 1.0f, -0.232f, 0.0f, -0.014f, 0.667f, 1.0f, -0.23f, 0.0f, -0.013f, 0.663f, 1.0f,
+	-0.228f, 0.0f, -0.011f, 0.66f, 1.0f, -0.225f, 0.0f, -0.009f, 0.657f, 1.0f, -0.223f, 0.0f, -0.007f, 0.654f, 1.0f, -0.221f, 0.0f, -0.005f, 0.651f, 1.0f,
+	-0.219f, 0.0f, -0.003f, 0.649f, 1.0f, -0.217f, 0.0f, -0.001f, 0.645f, 1.0f, -0.215f, 0.0f, 0.002f, 0.642f, 1.0f, -0.213f, 0.0f, 0.004f, 0.639f, 1.0f,
+	-0.211f, 0.0f, 0.006f, 0.635f, 1.0f, -0.209f, 0.0f, 0.008f, 0.631f, 1.0f, -0.207f, 0.0f, 0.011f, 0.627f, 1.0f, -0.206f, 0.0f, 0.013f, 0.623f, 1.0f,
+	-0.204f, 0.0f, 0.016f, 0.619f, 1.0f, -0.202f, 0.0f, 0.018f, 0.615f, 1.0f, -0.2f, 0.0f, 0.021f, 0.61f, 1.0f, -0.199f, 0.0f, 0.023f, 0.606f, 1.0f,
+	-0.197f, 0.0f, 0.026f, 0.602f, 1.0f, -0.195f, 0.0f, 0.029f, 0.598f, 1.0f, -0.194f, 0.0f, 0.032f, 0.595f, 1.0f, -0.192f, 0.0f, 0.034f, 0.592f, 1.0f,
+	-0.191f, 0.0f, 0.037f, 0.589f, 1.0f, -0.19f, 0.0f, 0.04f, 0.587f, 1.0f, -0.188f, 0.0f, 0.043f, 0.585f, 1.0f, -0.187f, 0.0f, 0.046f, 0.584f, 1.0f,
+	-0.186f, 0.0f, 0.05f, 0.583f, 1.0f, -0.185f, 0.0f, 0.053f, 0.582f, 1.0f, -0.183f, 0.0f, 0.056f, 0.581f, 1.0f, -0.182f, 0.0f, 0.059f, 0.581f, 1.0f,
+	-0.181f, 0.0f, 0.062f, 0.581f, 1.0f, -0.18f, 0.0f, 0.066f, 0.581f, 1.0f, -0.179f, 0.0f, 0.069f, 0.58f, 1.0f, -0.178f, 0.0f, 0.072f, 0.58f, 1.0f,
+	-0.177f, 0.0f, 0.076f, 0.58f, 1.0f, -0.177f, 0.0f, 0.079f, 0.58f, 1.0f, -0.176f, 0.0f, 0.083f, 0.58f, 1.0f, -0.175f, 0.0f, 0.086f, 0.58f, 1.0f,
+	-0.174f, 0.0f, 0.09f, 0.58f, 1.0f, -0.174f, 0.0f, 0.093f, 0.58f, 1.0f, -0.173f, 0.0f, 0.097f, 0.58f, 1.0f, -0.172f, 0.0f, 0.1f, 0.58f, 1.0f,
+	-0.172f, 0.0f, 0.104f, 0.58f, 1.0f, -0.171f, 0.0f, 0.108f, 0.579f, 1.0f, -0.171f, 0.0f, 0.111f, 0.579f, 1.0f, -0.17f, 0.0f, 0.115f, 0.578f, 1.0f,
+	-0.17f, 0.0f, 0.119f, 0.578f, 1.0f, -0.17f, 0.0f, 0.122f, 0.577f, 1.0f, -0.169f, 0.0f, 0.126f, 0.577f, 1.0f, -0.169f, 0.0f, 0.13f, 0.576f, 1.0f,
+	-0.169f, 0.0f, 0.134f, 0.576f, 1.0f, -0.169f, 0.0f, 0.137f, 0.575f, 1.0f, -0.169f, 0.0f, 0.141f, 0.575f, 1.0f, -0.169f, 0.0f, 0.145f, 0.574f, 1.0f,
+	-0.169f, 0.0f, 0.149f, 0.572f, 1.0f, -0.169f, 0.0f, 0.153f, 0.571f, 1.0f, -0.169f, 0.0f, 0.157f, 0.569f, 1.0f, -0.169f, 0.0f, 0.16f, 0.566f, 1.0f,
+	-0.169f, 0.0f, 0.164f, 0.562f, 1.0f, -0.17f, 0.0f, 0.168f, 0.558f, 1.0f, -0.17f, 0.0f, 0.172f, 0.553f, 1.0f, -0.17f, 0.0f, 0.176f, 0.547f, 1.0f,
+	-0.171f, 0.0f, 0.18f, 0.539f, 1.0f, -0.171f, 0.0f, 0.183f, 0.531f, 1.0f, -0.172f, 0.0f, 0.187f, 0.522f, 1.0f, -0.172f, 0.0f, 0.191f, 0.513f, 1.0f,
+	-0.173f, 0.0f, 0.194f, 0.503f, 1.0f, -0.173f, 0.0f, 0.198f, 0.493f, 1.0f, -0.174f, 0.0f, 0.202f, 0.483f, 1.0f, -0.175f, 0.0f, 0.205f, 0.473f, 1.0f,
+	-0.176f, 0.0f, 0.209f, 0.464f, 1.0f, -0.177f, 0.0f, 0.212f, 0.455f, 1.0f, -0.178f, 0.0f, 0.215f, 0.446f, 1.0f, -0.178f, 0.0f, 0.219f, 0.438f, 1.0f,
+	-0.179f, 0.0f, 0.222f, 0.428f, 1.0f, -0.18f, 0.0f, 0.226f, 0.418f, 1.0f, -0.182f, 0.0f, 0.229f, 0.407f, 1.0f, -0.183f, 0.0f, 0.232f, 0.394f, 1.0f,
+	-0.184f, 0.0f, 0.236f, 0.38f, 1.0f, -0.185f, 0.0f, 0.239f, 0.364f, 1.0f, -0.186f, 0.0f, 0.242f, 0.348f, 1.0f, -0.187f, 0.0f, 0.245f, 0.33f, 1.0f,
+	-0.188f, 0.0f, 0.249f, 0.311f, 1.0f, -0.19f, 0.0f, 0.252f, 0.293f, 1.0f, -0.191f, 0.0f, 0.255f, 0.275f, 1.0f, -0.192f, 0.0f, 0.258f, 0.258f, 1.0f,
+	-0.194f, 0.0f, 0.261f, 0.242f, 1.0f, -0.195f, 0.0f, 0.264f, 0.228f, 1.0f, -0.196f, 0.0f, 0.267f, 0.214f, 1.0f, -0.198f, 0.0f, 0.27f, 0.202f, 1.0f,
+	-0.199f, 0.0f, 0.273f, 0.191f, 1.0f, -0.201f, 0.0f, 0.276f, 0.181f, 1.0f, -0.202f, 0.0f, 0.279f, 0.171f, 1.0f, -0.204f, 0.0f, 0.282f, 0.162f, 1.0f,
+	-0.205f, 0.0f, 0.285f, 0.152f, 1.0f, -0.206f, 0.0f, 0.287f, 0.143f, 1.0f, -0.208f, 0.0f, 0.29f, 0.134f, 1.0f, -0.21f, 0.0f, 0.293f, 0.126f, 1.0f,
+	-0.211f, 0.0f, 0.295f, 0.117f, 1.0f, -0.213f, 0.0f, 0.298f, 0.109f, 1.0f, -0.214f, 0.0f, 0.301f, 0.101f, 1.0f, -0.216f, 0.0f, 0.303f, 0.094f, 1.0f,
+	-0.217f, 0.0f, 0.306f, 0.087f, 1.0f, -0.219f, 0.0f, 0.308f, 0.081f, 1.0f, -0.221f, 0.0f, 0.311f, 0.076f, 1.0f, -0.223f, 0.0f, 0.313f, 0.071f, 1.0f,
+	-0.224f, 0.0f, 0.316f, 0.067f, 1.0f, -0.226f, 0.0f, 0.318f, 0.065f, 1.0f, -0.228f, 0.0f, 0.321f, 0.062f, 1.0f, -0.23f, 0.0f, 0.323f, 0.061f, 1.0f,
+	-0.232f, 0.0f, 0.326f, 0.06f, 1.0f, -0.233f, 0.0f, 0.328f, 0.06f, 1.0f, -0.235f, 0.0f, 0.331f, 0.061f, 1.0f, -0.237f, 0.0f, 0.334f, 0.061f, 1.0f,
+	-0.239f, 0.0f, 0.336f, 0.062f, 1.0f, -0.241f, 0.0f, 0.339f, 0.063f, 1.0f, -0.243f, 0.0f, 0.341f, 0.064f, 1.0f, -0.245f, 0.0f, 0.344f, 0.065f, 1.0f,
+	-0.248f, 0.0f, 0.346f, 0.065f, 1.0f, -0.25f, 0.0f, 0.349f, 0.065f, 1.0f, -0.252f, 0.0f, 0.351f, 0.064f, 1.0f, -0.254f, 0.0f, 0.354f, 0.062f, 1.0f,
+	-0.256f, 0.0f, 0.356f, 0.06f, 1.0f, -0.258f, 0.0f, 0.359f, 0.058f, 1.0f, -0.261f, 0.0f, 0.361f, 0.055f, 1.0f, -0.263f, 0.0f, 0.364f, 0.051f, 1.0f,
+	-0.265f, 0.0f, 0.366f, 0.046f, 1.0f, -0.267f, 0.0f, 0.368f, 0.04f, 1.0f, -0.269f, 0.0f, 0.37f, 0.034f, 1.0f, -0.272f, 0.0f, 0.373f, 0.027f, 1.0f,
+	-0.274f, 0.0f, 0.375f, 0.019f, 1.0f, -0.276f, 0.0f, 0.377f, 0.012f, 1.0f, -0.278f, 0.0f, 0.379f, 0.007f, 1.0f, -0.28f, 0.0f, 0.381f, 0.003f, 1.0f,
+	-0.282f, 0.0f, 0.383f, 0.001f, 1.0f, -0.284f, 0.0f, 0.385f, 0.0f, 1.0f, -0.286f, 0.0f, 0.387f, 0.0f, 1.0f, -0.287f, 0.0f, 0.388f, 0.0f, 1.0f,
+	-0.289f, 0.0f, 0.39f, 0.0f, 1.0f,
+};
+
+static const float data22[309 * GP_PRIM_DATABUF_SIZE] = {
+	0.294f, 0.0f, 0.372f, 0.0f, 1.0f, 0.291f, 0.0f, 0.37f, 0.001f, 1.0f, 0.289f, 0.0f, 0.368f, 0.002f, 1.0f, 0.286f, 0.0f, 0.366f, 0.003f, 1.0f,
+	0.284f, 0.0f, 0.364f, 0.006f, 1.0f, 0.282f, 0.0f, 0.362f, 0.01f, 1.0f, 0.279f, 0.0f, 0.36f, 0.015f, 1.0f, 0.277f, 0.0f, 0.358f, 0.022f, 1.0f,
+	0.274f, 0.0f, 0.356f, 0.03f, 1.0f, 0.272f, 0.0f, 0.353f, 0.04f, 1.0f, 0.269f, 0.0f, 0.351f, 0.051f, 1.0f, 0.267f, 0.0f, 0.349f, 0.062f, 1.0f,
+	0.265f, 0.0f, 0.347f, 0.074f, 1.0f, 0.262f, 0.0f, 0.344f, 0.086f, 1.0f, 0.26f, 0.0f, 0.342f, 0.097f, 1.0f, 0.258f, 0.0f, 0.34f, 0.108f, 1.0f,
+	0.256f, 0.0f, 0.337f, 0.119f, 1.0f, 0.253f, 0.0f, 0.335f, 0.128f, 1.0f, 0.251f, 0.0f, 0.333f, 0.137f, 1.0f, 0.249f, 0.0f, 0.33f, 0.145f, 1.0f,
+	0.247f, 0.0f, 0.328f, 0.153f, 1.0f, 0.246f, 0.0f, 0.325f, 0.161f, 1.0f, 0.244f, 0.0f, 0.323f, 0.168f, 1.0f, 0.242f, 0.0f, 0.321f, 0.176f, 1.0f,
+	0.24f, 0.0f, 0.318f, 0.183f, 1.0f, 0.239f, 0.0f, 0.316f, 0.191f, 1.0f, 0.237f, 0.0f, 0.314f, 0.198f, 1.0f, 0.235f, 0.0f, 0.311f, 0.206f, 1.0f,
+	0.233f, 0.0f, 0.309f, 0.214f, 1.0f, 0.231f, 0.0f, 0.306f, 0.223f, 1.0f, 0.23f, 0.0f, 0.304f, 0.231f, 1.0f, 0.228f, 0.0f, 0.301f, 0.24f, 1.0f,
+	0.226f, 0.0f, 0.299f, 0.248f, 1.0f, 0.224f, 0.0f, 0.296f, 0.256f, 1.0f, 0.223f, 0.0f, 0.294f, 0.264f, 1.0f, 0.221f, 0.0f, 0.291f, 0.272f, 1.0f,
+	0.219f, 0.0f, 0.288f, 0.28f, 1.0f, 0.218f, 0.0f, 0.286f, 0.287f, 1.0f, 0.216f, 0.0f, 0.283f, 0.294f, 1.0f, 0.214f, 0.0f, 0.281f, 0.301f, 1.0f,
+	0.213f, 0.0f, 0.278f, 0.307f, 1.0f, 0.211f, 0.0f, 0.275f, 0.314f, 1.0f, 0.21f, 0.0f, 0.273f, 0.32f, 1.0f, 0.208f, 0.0f, 0.27f, 0.327f, 1.0f,
+	0.206f, 0.0f, 0.267f, 0.333f, 1.0f, 0.205f, 0.0f, 0.265f, 0.339f, 1.0f, 0.204f, 0.0f, 0.262f, 0.345f, 1.0f, 0.202f, 0.0f, 0.259f, 0.351f, 1.0f,
+	0.201f, 0.0f, 0.256f, 0.357f, 1.0f, 0.199f, 0.0f, 0.253f, 0.362f, 1.0f, 0.198f, 0.0f, 0.25f, 0.368f, 1.0f, 0.197f, 0.0f, 0.247f, 0.373f, 1.0f,
+	0.195f, 0.0f, 0.244f, 0.379f, 1.0f, 0.194f, 0.0f, 0.241f, 0.383f, 1.0f, 0.193f, 0.0f, 0.238f, 0.388f, 1.0f, 0.192f, 0.0f, 0.235f, 0.392f, 1.0f,
+	0.191f, 0.0f, 0.232f, 0.396f, 1.0f, 0.19f, 0.0f, 0.229f, 0.399f, 1.0f, 0.189f, 0.0f, 0.226f, 0.402f, 1.0f, 0.188f, 0.0f, 0.222f, 0.405f, 1.0f,
+	0.187f, 0.0f, 0.219f, 0.407f, 1.0f, 0.186f, 0.0f, 0.216f, 0.409f, 1.0f, 0.185f, 0.0f, 0.213f, 0.411f, 1.0f, 0.184f, 0.0f, 0.209f, 0.412f, 1.0f,
+	0.183f, 0.0f, 0.206f, 0.413f, 1.0f, 0.183f, 0.0f, 0.203f, 0.414f, 1.0f, 0.182f, 0.0f, 0.199f, 0.415f, 1.0f, 0.181f, 0.0f, 0.196f, 0.416f, 1.0f,
+	0.181f, 0.0f, 0.193f, 0.417f, 1.0f, 0.18f, 0.0f, 0.189f, 0.417f, 1.0f, 0.18f, 0.0f, 0.186f, 0.418f, 1.0f, 0.179f, 0.0f, 0.182f, 0.419f, 1.0f,
+	0.179f, 0.0f, 0.179f, 0.421f, 1.0f, 0.179f, 0.0f, 0.176f, 0.422f, 1.0f, 0.178f, 0.0f, 0.172f, 0.423f, 1.0f, 0.178f, 0.0f, 0.169f, 0.425f, 1.0f,
+	0.178f, 0.0f, 0.165f, 0.427f, 1.0f, 0.178f, 0.0f, 0.162f, 0.429f, 1.0f, 0.178f, 0.0f, 0.158f, 0.431f, 1.0f, 0.178f, 0.0f, 0.155f, 0.434f, 1.0f,
+	0.178f, 0.0f, 0.152f, 0.436f, 1.0f, 0.178f, 0.0f, 0.148f, 0.439f, 1.0f, 0.178f, 0.0f, 0.145f, 0.442f, 1.0f, 0.178f, 0.0f, 0.141f, 0.446f, 1.0f,
+	0.178f, 0.0f, 0.138f, 0.449f, 1.0f, 0.178f, 0.0f, 0.134f, 0.453f, 1.0f, 0.178f, 0.0f, 0.131f, 0.458f, 1.0f, 0.179f, 0.0f, 0.127f, 0.462f, 1.0f,
+	0.179f, 0.0f, 0.124f, 0.467f, 1.0f, 0.179f, 0.0f, 0.12f, 0.472f, 1.0f, 0.18f, 0.0f, 0.117f, 0.478f, 1.0f, 0.18f, 0.0f, 0.113f, 0.483f, 1.0f,
+	0.181f, 0.0f, 0.11f, 0.489f, 1.0f, 0.182f, 0.0f, 0.106f, 0.494f, 1.0f, 0.182f, 0.0f, 0.103f, 0.5f, 1.0f, 0.183f, 0.0f, 0.099f, 0.505f, 1.0f,
+	0.184f, 0.0f, 0.096f, 0.511f, 1.0f, 0.185f, 0.0f, 0.092f, 0.516f, 1.0f, 0.185f, 0.0f, 0.089f, 0.521f, 1.0f, 0.186f, 0.0f, 0.086f, 0.525f, 1.0f,
+	0.187f, 0.0f, 0.082f, 0.53f, 1.0f, 0.188f, 0.0f, 0.079f, 0.534f, 1.0f, 0.189f, 0.0f, 0.076f, 0.537f, 1.0f, 0.191f, 0.0f, 0.073f, 0.541f, 1.0f,
+	0.192f, 0.0f, 0.069f, 0.544f, 1.0f, 0.193f, 0.0f, 0.066f, 0.547f, 1.0f, 0.194f, 0.0f, 0.063f, 0.55f, 1.0f, 0.196f, 0.0f, 0.061f, 0.553f, 1.0f,
+	0.197f, 0.0f, 0.058f, 0.556f, 1.0f, 0.198f, 0.0f, 0.055f, 0.559f, 1.0f, 0.2f, 0.0f, 0.052f, 0.562f, 1.0f, 0.201f, 0.0f, 0.049f, 0.564f, 1.0f,
+	0.203f, 0.0f, 0.047f, 0.566f, 1.0f, 0.205f, 0.0f, 0.044f, 0.569f, 1.0f, 0.206f, 0.0f, 0.042f, 0.571f, 1.0f, 0.208f, 0.0f, 0.039f, 0.573f, 1.0f,
+	0.21f, 0.0f, 0.037f, 0.575f, 1.0f, 0.212f, 0.0f, 0.035f, 0.576f, 1.0f, 0.214f, 0.0f, 0.032f, 0.578f, 1.0f, 0.215f, 0.0f, 0.03f, 0.579f, 1.0f,
+	0.217f, 0.0f, 0.028f, 0.581f, 1.0f, 0.22f, 0.0f, 0.025f, 0.582f, 1.0f, 0.222f, 0.0f, 0.023f, 0.583f, 1.0f, 0.224f, 0.0f, 0.021f, 0.585f, 1.0f,
+	0.226f, 0.0f, 0.019f, 0.587f, 1.0f, 0.228f, 0.0f, 0.016f, 0.589f, 1.0f, 0.231f, 0.0f, 0.014f, 0.592f, 1.0f, 0.233f, 0.0f, 0.012f, 0.596f, 1.0f,
+	0.236f, 0.0f, 0.01f, 0.599f, 1.0f, 0.238f, 0.0f, 0.008f, 0.604f, 1.0f, 0.241f, 0.0f, 0.006f, 0.608f, 1.0f, 0.243f, 0.0f, 0.004f, 0.612f, 1.0f,
+	0.246f, 0.0f, 0.002f, 0.615f, 1.0f, 0.249f, 0.0f, 0.0f, 0.619f, 1.0f, 0.251f, 0.0f, -0.002f, 0.622f, 1.0f, 0.254f, 0.0f, -0.003f, 0.624f, 1.0f,
+	0.257f, 0.0f, -0.005f, 0.626f, 1.0f, 0.26f, 0.0f, -0.007f, 0.628f, 1.0f, 0.263f, 0.0f, -0.008f, 0.63f, 1.0f, 0.266f, 0.0f, -0.01f, 0.632f, 1.0f,
+	0.269f, 0.0f, -0.011f, 0.634f, 1.0f, 0.272f, 0.0f, -0.013f, 0.636f, 1.0f, 0.275f, 0.0f, -0.014f, 0.638f, 1.0f, 0.278f, 0.0f, -0.015f, 0.64f, 1.0f,
+	0.281f, 0.0f, -0.017f, 0.642f, 1.0f, 0.284f, 0.0f, -0.018f, 0.644f, 1.0f, 0.288f, 0.0f, -0.019f, 0.647f, 1.0f, 0.291f, 0.0f, -0.02f, 0.649f, 1.0f,
+	0.294f, 0.0f, -0.021f, 0.651f, 1.0f, 0.297f, 0.0f, -0.022f, 0.653f, 1.0f, 0.301f, 0.0f, -0.023f, 0.656f, 1.0f, 0.304f, 0.0f, -0.024f, 0.658f, 1.0f,
+	0.307f, 0.0f, -0.025f, 0.659f, 1.0f, 0.31f, 0.0f, -0.026f, 0.661f, 1.0f, 0.314f, 0.0f, -0.027f, 0.662f, 1.0f, 0.317f, 0.0f, -0.027f, 0.664f, 1.0f,
+	0.32f, 0.0f, -0.028f, 0.665f, 1.0f, 0.324f, 0.0f, -0.028f, 0.665f, 1.0f, 0.327f, 0.0f, -0.029f, 0.666f, 1.0f, 0.33f, 0.0f, -0.029f, 0.666f, 1.0f,
+	0.334f, 0.0f, -0.029f, 0.667f, 1.0f, 0.337f, 0.0f, -0.03f, 0.667f, 1.0f, 0.341f, 0.0f, -0.03f, 0.668f, 1.0f, 0.344f, 0.0f, -0.03f, 0.668f, 1.0f,
+	0.348f, 0.0f, -0.03f, 0.668f, 1.0f, 0.351f, 0.0f, -0.03f, 0.668f, 1.0f, 0.354f, 0.0f, -0.03f, 0.668f, 1.0f, 0.358f, 0.0f, -0.029f, 0.668f, 1.0f,
+	0.361f, 0.0f, -0.029f, 0.668f, 1.0f, 0.365f, 0.0f, -0.029f, 0.668f, 1.0f, 0.368f, 0.0f, -0.028f, 0.668f, 1.0f, 0.372f, 0.0f, -0.028f, 0.668f, 1.0f,
+	0.375f, 0.0f, -0.027f, 0.668f, 1.0f, 0.378f, 0.0f, -0.027f, 0.668f, 1.0f, 0.382f, 0.0f, -0.026f, 0.667f, 1.0f, 0.385f, 0.0f, -0.025f, 0.667f, 1.0f,
+	0.388f, 0.0f, -0.025f, 0.666f, 1.0f, 0.392f, 0.0f, -0.024f, 0.666f, 1.0f, 0.395f, 0.0f, -0.023f, 0.665f, 1.0f, 0.398f, 0.0f, -0.022f, 0.664f, 1.0f,
+	0.401f, 0.0f, -0.021f, 0.664f, 1.0f, 0.405f, 0.0f, -0.02f, 0.663f, 1.0f, 0.408f, 0.0f, -0.019f, 0.663f, 1.0f, 0.411f, 0.0f, -0.018f, 0.662f, 1.0f,
+	0.414f, 0.0f, -0.017f, 0.662f, 1.0f, 0.417f, 0.0f, -0.016f, 0.662f, 1.0f, 0.42f, 0.0f, -0.015f, 0.662f, 1.0f, 0.423f, 0.0f, -0.014f, 0.661f, 1.0f,
+	0.426f, 0.0f, -0.012f, 0.661f, 1.0f, 0.429f, 0.0f, -0.011f, 0.661f, 1.0f, 0.432f, 0.0f, -0.01f, 0.661f, 1.0f, 0.434f, 0.0f, -0.009f, 0.66f, 1.0f,
+	0.437f, 0.0f, -0.007f, 0.66f, 1.0f, 0.44f, 0.0f, -0.006f, 0.659f, 1.0f, 0.442f, 0.0f, -0.005f, 0.659f, 1.0f, 0.445f, 0.0f, -0.003f, 0.658f, 1.0f,
+	0.448f, 0.0f, -0.002f, 0.658f, 1.0f, 0.45f, 0.0f, -0.001f, 0.657f, 1.0f, 0.452f, 0.0f, 0.001f, 0.656f, 1.0f, 0.455f, 0.0f, 0.002f, 0.655f, 1.0f,
+	0.457f, 0.0f, 0.004f, 0.654f, 1.0f, 0.459f, 0.0f, 0.005f, 0.653f, 1.0f, 0.462f, 0.0f, 0.007f, 0.652f, 1.0f, 0.464f, 0.0f, 0.009f, 0.651f, 1.0f,
+	0.466f, 0.0f, 0.01f, 0.65f, 1.0f, 0.468f, 0.0f, 0.012f, 0.65f, 1.0f, 0.47f, 0.0f, 0.014f, 0.649f, 1.0f, 0.472f, 0.0f, 0.016f, 0.648f, 1.0f,
+	0.474f, 0.0f, 0.018f, 0.647f, 1.0f, 0.476f, 0.0f, 0.019f, 0.646f, 1.0f, 0.478f, 0.0f, 0.021f, 0.645f, 1.0f, 0.479f, 0.0f, 0.023f, 0.644f, 1.0f,
+	0.481f, 0.0f, 0.025f, 0.643f, 1.0f, 0.483f, 0.0f, 0.027f, 0.642f, 1.0f, 0.485f, 0.0f, 0.03f, 0.642f, 1.0f, 0.486f, 0.0f, 0.032f, 0.641f, 1.0f,
+	0.488f, 0.0f, 0.034f, 0.64f, 1.0f, 0.49f, 0.0f, 0.036f, 0.639f, 1.0f, 0.491f, 0.0f, 0.038f, 0.638f, 1.0f, 0.493f, 0.0f, 0.041f, 0.637f, 1.0f,
+	0.494f, 0.0f, 0.043f, 0.636f, 1.0f, 0.496f, 0.0f, 0.045f, 0.635f, 1.0f, 0.497f, 0.0f, 0.048f, 0.635f, 1.0f, 0.499f, 0.0f, 0.05f, 0.634f, 1.0f,
+	0.5f, 0.0f, 0.053f, 0.633f, 1.0f, 0.502f, 0.0f, 0.055f, 0.632f, 1.0f, 0.503f, 0.0f, 0.058f, 0.631f, 1.0f, 0.505f, 0.0f, 0.06f, 0.63f, 1.0f,
+	0.506f, 0.0f, 0.063f, 0.63f, 1.0f, 0.507f, 0.0f, 0.066f, 0.629f, 1.0f, 0.509f, 0.0f, 0.068f, 0.628f, 1.0f, 0.51f, 0.0f, 0.071f, 0.628f, 1.0f,
+	0.511f, 0.0f, 0.074f, 0.627f, 1.0f, 0.513f, 0.0f, 0.077f, 0.626f, 1.0f, 0.514f, 0.0f, 0.079f, 0.625f, 1.0f, 0.515f, 0.0f, 0.082f, 0.625f, 1.0f,
+	0.516f, 0.0f, 0.085f, 0.624f, 1.0f, 0.518f, 0.0f, 0.088f, 0.623f, 1.0f, 0.519f, 0.0f, 0.091f, 0.622f, 1.0f, 0.52f, 0.0f, 0.094f, 0.62f, 1.0f,
+	0.521f, 0.0f, 0.098f, 0.619f, 1.0f, 0.522f, 0.0f, 0.101f, 0.617f, 1.0f, 0.523f, 0.0f, 0.104f, 0.615f, 1.0f, 0.524f, 0.0f, 0.107f, 0.613f, 1.0f,
+	0.525f, 0.0f, 0.111f, 0.611f, 1.0f, 0.526f, 0.0f, 0.114f, 0.609f, 1.0f, 0.527f, 0.0f, 0.118f, 0.607f, 1.0f, 0.527f, 0.0f, 0.121f, 0.605f, 1.0f,
+	0.528f, 0.0f, 0.124f, 0.603f, 1.0f, 0.529f, 0.0f, 0.128f, 0.602f, 1.0f, 0.529f, 0.0f, 0.132f, 0.6f, 1.0f, 0.53f, 0.0f, 0.135f, 0.599f, 1.0f,
+	0.531f, 0.0f, 0.139f, 0.598f, 1.0f, 0.531f, 0.0f, 0.142f, 0.598f, 1.0f, 0.531f, 0.0f, 0.146f, 0.597f, 1.0f, 0.532f, 0.0f, 0.15f, 0.596f, 1.0f,
+	0.532f, 0.0f, 0.154f, 0.596f, 1.0f, 0.532f, 0.0f, 0.157f, 0.595f, 1.0f, 0.532f, 0.0f, 0.161f, 0.595f, 1.0f, 0.532f, 0.0f, 0.165f, 0.594f, 1.0f,
+	0.532f, 0.0f, 0.169f, 0.593f, 1.0f, 0.532f, 0.0f, 0.173f, 0.592f, 1.0f, 0.532f, 0.0f, 0.177f, 0.591f, 1.0f, 0.532f, 0.0f, 0.181f, 0.59f, 1.0f,
+	0.531f, 0.0f, 0.185f, 0.589f, 1.0f, 0.531f, 0.0f, 0.189f, 0.588f, 1.0f, 0.53f, 0.0f, 0.194f, 0.587f, 1.0f, 0.529f, 0.0f, 0.198f, 0.586f, 1.0f,
+	0.528f, 0.0f, 0.202f, 0.585f, 1.0f, 0.527f, 0.0f, 0.207f, 0.584f, 1.0f, 0.526f, 0.0f, 0.211f, 0.584f, 1.0f, 0.525f, 0.0f, 0.215f, 0.583f, 1.0f,
+	0.523f, 0.0f, 0.22f, 0.583f, 1.0f, 0.522f, 0.0f, 0.224f, 0.583f, 1.0f, 0.52f, 0.0f, 0.229f, 0.582f, 1.0f, 0.518f, 0.0f, 0.234f, 0.582f, 1.0f,
+	0.515f, 0.0f, 0.238f, 0.582f, 1.0f, 0.513f, 0.0f, 0.243f, 0.581f, 1.0f, 0.51f, 0.0f, 0.247f, 0.58f, 1.0f, 0.508f, 0.0f, 0.252f, 0.579f, 1.0f,
+	0.505f, 0.0f, 0.257f, 0.578f, 1.0f, 0.502f, 0.0f, 0.261f, 0.576f, 1.0f, 0.499f, 0.0f, 0.266f, 0.573f, 1.0f, 0.496f, 0.0f, 0.27f, 0.57f, 1.0f,
+	0.492f, 0.0f, 0.275f, 0.566f, 1.0f, 0.489f, 0.0f, 0.279f, 0.561f, 1.0f, 0.485f, 0.0f, 0.284f, 0.555f, 1.0f, 0.481f, 0.0f, 0.288f, 0.548f, 1.0f,
+	0.478f, 0.0f, 0.293f, 0.54f, 1.0f, 0.473f, 0.0f, 0.297f, 0.531f, 1.0f, 0.469f, 0.0f, 0.301f, 0.521f, 1.0f, 0.465f, 0.0f, 0.305f, 0.509f, 1.0f,
+	0.461f, 0.0f, 0.309f, 0.496f, 1.0f, 0.456f, 0.0f, 0.313f, 0.481f, 1.0f, 0.452f, 0.0f, 0.317f, 0.464f, 1.0f, 0.448f, 0.0f, 0.321f, 0.445f, 1.0f,
+	0.443f, 0.0f, 0.324f, 0.424f, 1.0f, 0.438f, 0.0f, 0.328f, 0.401f, 1.0f, 0.434f, 0.0f, 0.331f, 0.374f, 1.0f, 0.429f, 0.0f, 0.334f, 0.346f, 1.0f,
+	0.425f, 0.0f, 0.337f, 0.314f, 1.0f, 0.421f, 0.0f, 0.34f, 0.281f, 1.0f, 0.416f, 0.0f, 0.343f, 0.245f, 1.0f, 0.412f, 0.0f, 0.346f, 0.208f, 1.0f,
+	0.408f, 0.0f, 0.349f, 0.169f, 1.0f, 0.404f, 0.0f, 0.351f, 0.13f, 1.0f, 0.401f, 0.0f, 0.354f, 0.089f, 1.0f, 0.398f, 0.0f, 0.356f, 0.054f, 1.0f,
+	0.394f, 0.0f, 0.359f, 0.0f, 1.0f,
+};
+
+static const float data23[209 * GP_PRIM_DATABUF_SIZE] = {
+	-0.751f, 0.0f, 0.173f, 0.0f, 1.0f, -0.751f, 0.0f, 0.168f, 0.0f, 1.0f, -0.75f, 0.0f, 0.164f, 0.0f, 1.0f, -0.75f, 0.0f, 0.16f, 0.0f, 1.0f,
+	-0.75f, 0.0f, 0.156f, 0.0f, 1.0f, -0.749f, 0.0f, 0.152f, 0.0f, 1.0f, -0.749f, 0.0f, 0.148f, 0.0f, 1.0f, -0.748f, 0.0f, 0.144f, 0.0f, 1.0f,
+	-0.747f, 0.0f, 0.14f, 0.001f, 1.0f, -0.747f, 0.0f, 0.137f, 0.002f, 1.0f, -0.746f, 0.0f, 0.133f, 0.005f, 1.0f, -0.745f, 0.0f, 0.129f, 0.008f, 1.0f,
+	-0.745f, 0.0f, 0.125f, 0.013f, 1.0f, -0.744f, 0.0f, 0.122f, 0.02f, 1.0f, -0.743f, 0.0f, 0.118f, 0.028f, 1.0f, -0.742f, 0.0f, 0.115f, 0.038f, 1.0f,
+	-0.741f, 0.0f, 0.111f, 0.049f, 1.0f, -0.74f, 0.0f, 0.108f, 0.061f, 1.0f, -0.739f, 0.0f, 0.105f, 0.073f, 1.0f, -0.738f, 0.0f, 0.101f, 0.085f, 1.0f,
+	-0.736f, 0.0f, 0.098f, 0.097f, 1.0f, -0.735f, 0.0f, 0.095f, 0.109f, 1.0f, -0.734f, 0.0f, 0.091f, 0.119f, 1.0f, -0.732f, 0.0f, 0.088f, 0.129f, 1.0f,
+	-0.731f, 0.0f, 0.085f, 0.138f, 1.0f, -0.729f, 0.0f, 0.082f, 0.146f, 1.0f, -0.728f, 0.0f, 0.079f, 0.153f, 1.0f, -0.726f, 0.0f, 0.076f, 0.158f, 1.0f,
+	-0.725f, 0.0f, 0.073f, 0.163f, 1.0f, -0.723f, 0.0f, 0.07f, 0.167f, 1.0f, -0.722f, 0.0f, 0.067f, 0.17f, 1.0f, -0.72f, 0.0f, 0.065f, 0.173f, 1.0f,
+	-0.718f, 0.0f, 0.062f, 0.174f, 1.0f, -0.717f, 0.0f, 0.059f, 0.175f, 1.0f, -0.715f, 0.0f, 0.057f, 0.176f, 1.0f, -0.714f, 0.0f, 0.054f, 0.176f, 1.0f,
+	-0.712f, 0.0f, 0.051f, 0.176f, 1.0f, -0.71f, 0.0f, 0.049f, 0.176f, 1.0f, -0.709f, 0.0f, 0.046f, 0.176f, 1.0f, -0.707f, 0.0f, 0.043f, 0.176f, 1.0f,
+	-0.705f, 0.0f, 0.041f, 0.176f, 1.0f, -0.703f, 0.0f, 0.038f, 0.176f, 1.0f, -0.701f, 0.0f, 0.035f, 0.176f, 1.0f, -0.7f, 0.0f, 0.033f, 0.177f, 1.0f,
+	-0.698f, 0.0f, 0.03f, 0.177f, 1.0f, -0.696f, 0.0f, 0.027f, 0.178f, 1.0f, -0.694f, 0.0f, 0.024f, 0.179f, 1.0f, -0.692f, 0.0f, 0.022f, 0.18f, 1.0f,
+	-0.69f, 0.0f, 0.019f, 0.181f, 1.0f, -0.688f, 0.0f, 0.016f, 0.182f, 1.0f, -0.685f, 0.0f, 0.013f, 0.184f, 1.0f, -0.683f, 0.0f, 0.01f, 0.187f, 1.0f,
+	-0.681f, 0.0f, 0.007f, 0.19f, 1.0f, -0.679f, 0.0f, 0.004f, 0.194f, 1.0f, -0.677f, 0.0f, 0.001f, 0.198f, 1.0f, -0.675f, 0.0f, -0.002f, 0.203f, 1.0f,
+	-0.673f, 0.0f, -0.005f, 0.209f, 1.0f, -0.67f, 0.0f, -0.008f, 0.215f, 1.0f, -0.668f, 0.0f, -0.011f, 0.222f, 1.0f, -0.666f, 0.0f, -0.014f, 0.229f, 1.0f,
+	-0.664f, 0.0f, -0.017f, 0.237f, 1.0f, -0.661f, 0.0f, -0.02f, 0.246f, 1.0f, -0.659f, 0.0f, -0.023f, 0.255f, 1.0f, -0.657f, 0.0f, -0.025f, 0.264f, 1.0f,
+	-0.654f, 0.0f, -0.028f, 0.275f, 1.0f, -0.652f, 0.0f, -0.031f, 0.285f, 1.0f, -0.65f, 0.0f, -0.034f, 0.297f, 1.0f, -0.647f, 0.0f, -0.037f, 0.309f, 1.0f,
+	-0.644f, 0.0f, -0.04f, 0.322f, 1.0f, -0.642f, 0.0f, -0.043f, 0.335f, 1.0f, -0.639f, 0.0f, -0.046f, 0.348f, 1.0f, -0.636f, 0.0f, -0.049f, 0.361f, 1.0f,
+	-0.633f, 0.0f, -0.052f, 0.374f, 1.0f, -0.63f, 0.0f, -0.055f, 0.386f, 1.0f, -0.627f, 0.0f, -0.058f, 0.397f, 1.0f, -0.624f, 0.0f, -0.061f, 0.408f, 1.0f,
+	-0.62f, 0.0f, -0.064f, 0.418f, 1.0f, -0.617f, 0.0f, -0.067f, 0.427f, 1.0f, -0.614f, 0.0f, -0.07f, 0.435f, 1.0f, -0.611f, 0.0f, -0.073f, 0.443f, 1.0f,
+	-0.607f, 0.0f, -0.075f, 0.451f, 1.0f, -0.604f, 0.0f, -0.078f, 0.458f, 1.0f, -0.6f, 0.0f, -0.081f, 0.465f, 1.0f, -0.597f, 0.0f, -0.084f, 0.472f, 1.0f,
+	-0.593f, 0.0f, -0.086f, 0.479f, 1.0f, -0.59f, 0.0f, -0.089f, 0.486f, 1.0f, -0.586f, 0.0f, -0.092f, 0.492f, 1.0f, -0.583f, 0.0f, -0.094f, 0.499f, 1.0f,
+	-0.579f, 0.0f, -0.097f, 0.505f, 1.0f, -0.575f, 0.0f, -0.099f, 0.512f, 1.0f, -0.571f, 0.0f, -0.102f, 0.518f, 1.0f, -0.567f, 0.0f, -0.105f, 0.524f, 1.0f,
+	-0.563f, 0.0f, -0.107f, 0.53f, 1.0f, -0.559f, 0.0f, -0.11f, 0.536f, 1.0f, -0.555f, 0.0f, -0.112f, 0.541f, 1.0f, -0.551f, 0.0f, -0.115f, 0.546f, 1.0f,
+	-0.546f, 0.0f, -0.117f, 0.551f, 1.0f, -0.542f, 0.0f, -0.12f, 0.555f, 1.0f, -0.538f, 0.0f, -0.122f, 0.559f, 1.0f, -0.533f, 0.0f, -0.125f, 0.562f, 1.0f,
+	-0.529f, 0.0f, -0.127f, 0.565f, 1.0f, -0.525f, 0.0f, -0.129f, 0.568f, 1.0f, -0.52f, 0.0f, -0.132f, 0.57f, 1.0f, -0.516f, 0.0f, -0.134f, 0.572f, 1.0f,
+	-0.512f, 0.0f, -0.137f, 0.574f, 1.0f, -0.508f, 0.0f, -0.139f, 0.576f, 1.0f, -0.503f, 0.0f, -0.141f, 0.577f, 1.0f, -0.499f, 0.0f, -0.144f, 0.578f, 1.0f,
+	-0.495f, 0.0f, -0.146f, 0.579f, 1.0f, -0.491f, 0.0f, -0.148f, 0.579f, 1.0f, -0.487f, 0.0f, -0.151f, 0.578f, 1.0f, -0.483f, 0.0f, -0.153f, 0.577f, 1.0f,
+	-0.479f, 0.0f, -0.155f, 0.574f, 1.0f, -0.475f, 0.0f, -0.158f, 0.571f, 1.0f, -0.471f, 0.0f, -0.16f, 0.567f, 1.0f, -0.467f, 0.0f, -0.162f, 0.561f, 1.0f,
+	-0.463f, 0.0f, -0.165f, 0.555f, 1.0f, -0.459f, 0.0f, -0.167f, 0.548f, 1.0f, -0.456f, 0.0f, -0.169f, 0.54f, 1.0f, -0.452f, 0.0f, -0.172f, 0.532f, 1.0f,
+	-0.448f, 0.0f, -0.174f, 0.523f, 1.0f, -0.445f, 0.0f, -0.176f, 0.514f, 1.0f, -0.441f, 0.0f, -0.179f, 0.505f, 1.0f, -0.438f, 0.0f, -0.181f, 0.497f, 1.0f,
+	-0.435f, 0.0f, -0.183f, 0.488f, 1.0f, -0.431f, 0.0f, -0.185f, 0.48f, 1.0f, -0.428f, 0.0f, -0.188f, 0.472f, 1.0f, -0.425f, 0.0f, -0.19f, 0.464f, 1.0f,
+	-0.422f, 0.0f, -0.192f, 0.457f, 1.0f, -0.419f, 0.0f, -0.194f, 0.451f, 1.0f, -0.416f, 0.0f, -0.196f, 0.444f, 1.0f, -0.413f, 0.0f, -0.198f, 0.439f, 1.0f,
+	-0.41f, 0.0f, -0.2f, 0.434f, 1.0f, -0.407f, 0.0f, -0.202f, 0.429f, 1.0f, -0.404f, 0.0f, -0.204f, 0.426f, 1.0f, -0.401f, 0.0f, -0.206f, 0.422f, 1.0f,
+	-0.398f, 0.0f, -0.208f, 0.419f, 1.0f, -0.396f, 0.0f, -0.21f, 0.417f, 1.0f, -0.393f, 0.0f, -0.212f, 0.415f, 1.0f, -0.39f, 0.0f, -0.213f, 0.413f, 1.0f,
+	-0.388f, 0.0f, -0.215f, 0.412f, 1.0f, -0.385f, 0.0f, -0.217f, 0.411f, 1.0f, -0.382f, 0.0f, -0.219f, 0.41f, 1.0f, -0.38f, 0.0f, -0.221f, 0.41f, 1.0f,
+	-0.377f, 0.0f, -0.222f, 0.409f, 1.0f, -0.375f, 0.0f, -0.224f, 0.409f, 1.0f, -0.372f, 0.0f, -0.226f, 0.409f, 1.0f, -0.37f, 0.0f, -0.228f, 0.409f, 1.0f,
+	-0.367f, 0.0f, -0.229f, 0.409f, 1.0f, -0.365f, 0.0f, -0.231f, 0.409f, 1.0f, -0.362f, 0.0f, -0.233f, 0.409f, 1.0f, -0.36f, 0.0f, -0.235f, 0.409f, 1.0f,
+	-0.357f, 0.0f, -0.236f, 0.409f, 1.0f, -0.355f, 0.0f, -0.238f, 0.409f, 1.0f, -0.352f, 0.0f, -0.24f, 0.408f, 1.0f, -0.35f, 0.0f, -0.242f, 0.408f, 1.0f,
+	-0.348f, 0.0f, -0.243f, 0.407f, 1.0f, -0.345f, 0.0f, -0.245f, 0.406f, 1.0f, -0.343f, 0.0f, -0.247f, 0.405f, 1.0f, -0.34f, 0.0f, -0.249f, 0.404f, 1.0f,
+	-0.338f, 0.0f, -0.251f, 0.403f, 1.0f, -0.336f, 0.0f, -0.253f, 0.401f, 1.0f, -0.333f, 0.0f, -0.255f, 0.399f, 1.0f, -0.331f, 0.0f, -0.256f, 0.397f, 1.0f,
+	-0.329f, 0.0f, -0.258f, 0.394f, 1.0f, -0.327f, 0.0f, -0.26f, 0.391f, 1.0f, -0.324f, 0.0f, -0.262f, 0.387f, 1.0f, -0.322f, 0.0f, -0.264f, 0.383f, 1.0f,
+	-0.32f, 0.0f, -0.266f, 0.379f, 1.0f, -0.318f, 0.0f, -0.268f, 0.374f, 1.0f, -0.316f, 0.0f, -0.27f, 0.368f, 1.0f, -0.314f, 0.0f, -0.272f, 0.362f, 1.0f,
+	-0.312f, 0.0f, -0.275f, 0.356f, 1.0f, -0.309f, 0.0f, -0.277f, 0.349f, 1.0f, -0.307f, 0.0f, -0.279f, 0.341f, 1.0f, -0.305f, 0.0f, -0.281f, 0.333f, 1.0f,
+	-0.303f, 0.0f, -0.283f, 0.325f, 1.0f, -0.301f, 0.0f, -0.286f, 0.316f, 1.0f, -0.299f, 0.0f, -0.288f, 0.307f, 1.0f, -0.297f, 0.0f, -0.29f, 0.298f, 1.0f,
+	-0.295f, 0.0f, -0.293f, 0.289f, 1.0f, -0.293f, 0.0f, -0.295f, 0.279f, 1.0f, -0.291f, 0.0f, -0.298f, 0.269f, 1.0f, -0.29f, 0.0f, -0.3f, 0.259f, 1.0f,
+	-0.288f, 0.0f, -0.303f, 0.249f, 1.0f, -0.286f, 0.0f, -0.306f, 0.238f, 1.0f, -0.284f, 0.0f, -0.308f, 0.227f, 1.0f, -0.282f, 0.0f, -0.311f, 0.215f, 1.0f,
+	-0.28f, 0.0f, -0.314f, 0.203f, 1.0f, -0.278f, 0.0f, -0.317f, 0.191f, 1.0f, -0.277f, 0.0f, -0.32f, 0.178f, 1.0f, -0.275f, 0.0f, -0.323f, 0.165f, 1.0f,
+	-0.273f, 0.0f, -0.326f, 0.151f, 1.0f, -0.271f, 0.0f, -0.33f, 0.138f, 1.0f, -0.27f, 0.0f, -0.333f, 0.124f, 1.0f, -0.268f, 0.0f, -0.336f, 0.11f, 1.0f,
+	-0.267f, 0.0f, -0.34f, 0.097f, 1.0f, -0.265f, 0.0f, -0.343f, 0.085f, 1.0f, -0.264f, 0.0f, -0.346f, 0.073f, 1.0f, -0.262f, 0.0f, -0.35f, 0.062f, 1.0f,
+	-0.261f, 0.0f, -0.353f, 0.052f, 1.0f, -0.259f, 0.0f, -0.357f, 0.043f, 1.0f, -0.258f, 0.0f, -0.36f, 0.035f, 1.0f, -0.257f, 0.0f, -0.363f, 0.028f, 1.0f,
+	-0.255f, 0.0f, -0.366f, 0.021f, 1.0f, -0.254f, 0.0f, -0.369f, 0.016f, 1.0f, -0.253f, 0.0f, -0.372f, 0.01f, 1.0f, -0.252f, 0.0f, -0.375f, 0.006f, 1.0f,
+	-0.251f, 0.0f, -0.379f, 0.0f, 1.0f,
+};
+
+static const float data24[133 * GP_PRIM_DATABUF_SIZE] = {
+	0.233f, 0.0f, -0.376f, 0.021f, 1.0f, 0.234f, 0.0f, -0.372f, 0.08f, 1.0f, 0.234f, 0.0f, -0.369f, 0.116f, 1.0f, 0.234f, 0.0f, -0.366f, 0.156f, 1.0f,
+	0.235f, 0.0f, -0.362f, 0.191f, 1.0f, 0.236f, 0.0f, -0.359f, 0.222f, 1.0f, 0.236f, 0.0f, -0.356f, 0.248f, 1.0f, 0.237f, 0.0f, -0.353f, 0.27f, 1.0f,
+	0.238f, 0.0f, -0.35f, 0.289f, 1.0f, 0.239f, 0.0f, -0.346f, 0.304f, 1.0f, 0.24f, 0.0f, -0.343f, 0.319f, 1.0f, 0.241f, 0.0f, -0.34f, 0.334f, 1.0f,
+	0.242f, 0.0f, -0.337f, 0.35f, 1.0f, 0.243f, 0.0f, -0.335f, 0.367f, 1.0f, 0.244f, 0.0f, -0.332f, 0.385f, 1.0f, 0.245f, 0.0f, -0.329f, 0.401f, 1.0f,
+	0.247f, 0.0f, -0.327f, 0.415f, 1.0f, 0.248f, 0.0f, -0.324f, 0.426f, 1.0f, 0.249f, 0.0f, -0.322f, 0.435f, 1.0f, 0.251f, 0.0f, -0.32f, 0.443f, 1.0f,
+	0.252f, 0.0f, -0.318f, 0.449f, 1.0f, 0.254f, 0.0f, -0.316f, 0.455f, 1.0f, 0.255f, 0.0f, -0.314f, 0.461f, 1.0f, 0.257f, 0.0f, -0.312f, 0.467f, 1.0f,
+	0.258f, 0.0f, -0.311f, 0.474f, 1.0f, 0.26f, 0.0f, -0.309f, 0.48f, 1.0f, 0.262f, 0.0f, -0.307f, 0.487f, 1.0f, 0.263f, 0.0f, -0.305f, 0.493f, 1.0f,
+	0.265f, 0.0f, -0.303f, 0.499f, 1.0f, 0.267f, 0.0f, -0.3f, 0.505f, 1.0f, 0.269f, 0.0f, -0.298f, 0.511f, 1.0f, 0.271f, 0.0f, -0.296f, 0.518f, 1.0f,
+	0.273f, 0.0f, -0.294f, 0.524f, 1.0f, 0.276f, 0.0f, -0.291f, 0.531f, 1.0f, 0.278f, 0.0f, -0.289f, 0.539f, 1.0f, 0.281f, 0.0f, -0.287f, 0.546f, 1.0f,
+	0.283f, 0.0f, -0.284f, 0.552f, 1.0f, 0.286f, 0.0f, -0.281f, 0.557f, 1.0f, 0.289f, 0.0f, -0.279f, 0.561f, 1.0f, 0.292f, 0.0f, -0.276f, 0.565f, 1.0f,
+	0.294f, 0.0f, -0.274f, 0.568f, 1.0f, 0.297f, 0.0f, -0.271f, 0.57f, 1.0f, 0.3f, 0.0f, -0.269f, 0.572f, 1.0f, 0.303f, 0.0f, -0.267f, 0.574f, 1.0f,
+	0.306f, 0.0f, -0.264f, 0.575f, 1.0f, 0.308f, 0.0f, -0.262f, 0.576f, 1.0f, 0.311f, 0.0f, -0.26f, 0.577f, 1.0f, 0.314f, 0.0f, -0.257f, 0.578f, 1.0f,
+	0.316f, 0.0f, -0.255f, 0.578f, 1.0f, 0.319f, 0.0f, -0.253f, 0.579f, 1.0f, 0.322f, 0.0f, -0.25f, 0.579f, 1.0f, 0.325f, 0.0f, -0.248f, 0.58f, 1.0f,
+	0.328f, 0.0f, -0.246f, 0.58f, 1.0f, 0.331f, 0.0f, -0.243f, 0.58f, 1.0f, 0.334f, 0.0f, -0.241f, 0.58f, 1.0f, 0.337f, 0.0f, -0.239f, 0.58f, 1.0f,
+	0.341f, 0.0f, -0.236f, 0.58f, 1.0f, 0.344f, 0.0f, -0.233f, 0.581f, 1.0f, 0.348f, 0.0f, -0.231f, 0.581f, 1.0f, 0.352f, 0.0f, -0.228f, 0.581f, 1.0f,
+	0.356f, 0.0f, -0.225f, 0.582f, 1.0f, 0.36f, 0.0f, -0.222f, 0.582f, 1.0f, 0.365f, 0.0f, -0.219f, 0.582f, 1.0f, 0.369f, 0.0f, -0.216f, 0.582f, 1.0f,
+	0.374f, 0.0f, -0.214f, 0.582f, 1.0f, 0.378f, 0.0f, -0.211f, 0.582f, 1.0f, 0.383f, 0.0f, -0.208f, 0.583f, 1.0f, 0.387f, 0.0f, -0.205f, 0.583f, 1.0f,
+	0.392f, 0.0f, -0.202f, 0.583f, 1.0f, 0.397f, 0.0f, -0.199f, 0.583f, 1.0f, 0.401f, 0.0f, -0.197f, 0.583f, 1.0f, 0.406f, 0.0f, -0.194f, 0.583f, 1.0f,
+	0.411f, 0.0f, -0.191f, 0.583f, 1.0f, 0.416f, 0.0f, -0.188f, 0.583f, 1.0f, 0.42f, 0.0f, -0.186f, 0.583f, 1.0f, 0.425f, 0.0f, -0.183f, 0.583f, 1.0f,
+	0.43f, 0.0f, -0.18f, 0.583f, 1.0f, 0.434f, 0.0f, -0.178f, 0.583f, 1.0f, 0.439f, 0.0f, -0.175f, 0.583f, 1.0f, 0.444f, 0.0f, -0.172f, 0.583f, 1.0f,
+	0.449f, 0.0f, -0.17f, 0.584f, 1.0f, 0.453f, 0.0f, -0.167f, 0.584f, 1.0f, 0.458f, 0.0f, -0.164f, 0.584f, 1.0f, 0.463f, 0.0f, -0.161f, 0.585f, 1.0f,
+	0.468f, 0.0f, -0.158f, 0.585f, 1.0f, 0.473f, 0.0f, -0.155f, 0.585f, 1.0f, 0.478f, 0.0f, -0.152f, 0.585f, 1.0f, 0.483f, 0.0f, -0.149f, 0.585f, 1.0f,
+	0.488f, 0.0f, -0.146f, 0.585f, 1.0f, 0.492f, 0.0f, -0.143f, 0.585f, 1.0f, 0.497f, 0.0f, -0.14f, 0.586f, 1.0f, 0.501f, 0.0f, -0.137f, 0.586f, 1.0f,
+	0.506f, 0.0f, -0.134f, 0.586f, 1.0f, 0.51f, 0.0f, -0.13f, 0.586f, 1.0f, 0.515f, 0.0f, -0.127f, 0.586f, 1.0f, 0.52f, 0.0f, -0.124f, 0.586f, 1.0f,
+	0.524f, 0.0f, -0.12f, 0.586f, 1.0f, 0.529f, 0.0f, -0.117f, 0.586f, 1.0f, 0.534f, 0.0f, -0.113f, 0.586f, 1.0f, 0.539f, 0.0f, -0.109f, 0.586f, 1.0f,
+	0.544f, 0.0f, -0.105f, 0.586f, 1.0f, 0.55f, 0.0f, -0.1f, 0.586f, 1.0f, 0.555f, 0.0f, -0.095f, 0.586f, 1.0f, 0.561f, 0.0f, -0.09f, 0.586f, 1.0f,
+	0.567f, 0.0f, -0.084f, 0.587f, 1.0f, 0.573f, 0.0f, -0.078f, 0.587f, 1.0f, 0.579f, 0.0f, -0.071f, 0.587f, 1.0f, 0.586f, 0.0f, -0.063f, 0.588f, 1.0f,
+	0.593f, 0.0f, -0.055f, 0.588f, 1.0f, 0.6f, 0.0f, -0.047f, 0.588f, 1.0f, 0.607f, 0.0f, -0.038f, 0.589f, 1.0f, 0.614f, 0.0f, -0.028f, 0.589f, 1.0f,
+	0.621f, 0.0f, -0.018f, 0.589f, 1.0f, 0.629f, 0.0f, -0.007f, 0.589f, 1.0f, 0.636f, 0.0f, 0.004f, 0.589f, 1.0f, 0.643f, 0.0f, 0.015f, 0.59f, 1.0f,
+	0.65f, 0.0f, 0.026f, 0.589f, 1.0f, 0.656f, 0.0f, 0.038f, 0.589f, 1.0f, 0.663f, 0.0f, 0.049f, 0.588f, 1.0f, 0.669f, 0.0f, 0.06f, 0.587f, 1.0f,
+	0.676f, 0.0f, 0.072f, 0.584f, 1.0f, 0.682f, 0.0f, 0.084f, 0.579f, 1.0f, 0.688f, 0.0f, 0.096f, 0.571f, 1.0f, 0.694f, 0.0f, 0.108f, 0.558f, 1.0f,
+	0.7f, 0.0f, 0.12f, 0.54f, 1.0f, 0.706f, 0.0f, 0.133f, 0.514f, 1.0f, 0.712f, 0.0f, 0.145f, 0.478f, 1.0f, 0.718f, 0.0f, 0.158f, 0.431f, 1.0f,
+	0.723f, 0.0f, 0.17f, 0.369f, 1.0f, 0.728f, 0.0f, 0.182f, 0.294f, 1.0f, 0.733f, 0.0f, 0.194f, 0.205f, 1.0f, 0.737f, 0.0f, 0.204f, 0.125f, 1.0f,
+	0.743f, 0.0f, 0.218f, 0.0f, 1.0f,
+};
+
+static const float data25[389 * GP_PRIM_DATABUF_SIZE] = {
+	-0.284f, 0.0f, -0.444f, 0.0f, 1.0f, -0.285f, 0.0f, -0.448f, 0.0f, 1.0f, -0.285f, 0.0f, -0.45f, 0.0f, 1.0f, -0.286f, 0.0f, -0.454f, 0.0f, 1.0f,
+	-0.286f, 0.0f, -0.457f, 0.0f, 1.0f, -0.287f, 0.0f, -0.46f, 0.0f, 1.0f, -0.288f, 0.0f, -0.463f, 0.0f, 1.0f, -0.289f, 0.0f, -0.466f, 0.0f, 1.0f,
+	-0.289f, 0.0f, -0.47f, 0.0f, 1.0f, -0.29f, 0.0f, -0.473f, 0.0f, 1.0f, -0.291f, 0.0f, -0.476f, 0.0f, 1.0f, -0.292f, 0.0f, -0.48f, 0.0f, 1.0f,
+	-0.293f, 0.0f, -0.484f, 0.0f, 1.0f, -0.294f, 0.0f, -0.487f, 0.0f, 1.0f, -0.295f, 0.0f, -0.491f, 0.0f, 1.0f, -0.296f, 0.0f, -0.494f, 0.0f, 1.0f,
+	-0.297f, 0.0f, -0.498f, 0.0f, 1.0f, -0.298f, 0.0f, -0.502f, 0.0f, 1.0f, -0.299f, 0.0f, -0.505f, 0.0f, 1.0f, -0.3f, 0.0f, -0.509f, 0.0f, 1.0f,
+	-0.301f, 0.0f, -0.513f, 0.0f, 1.0f, -0.302f, 0.0f, -0.517f, 0.0f, 1.0f, -0.303f, 0.0f, -0.52f, 0.0f, 1.0f, -0.304f, 0.0f, -0.524f, 0.0f, 1.0f,
+	-0.305f, 0.0f, -0.528f, 0.0f, 1.0f, -0.306f, 0.0f, -0.532f, 0.0f, 1.0f, -0.307f, 0.0f, -0.535f, 0.0f, 1.0f, -0.308f, 0.0f, -0.539f, 0.0f, 1.0f,
+	-0.309f, 0.0f, -0.543f, 0.0f, 1.0f, -0.31f, 0.0f, -0.547f, 0.0f, 1.0f, -0.311f, 0.0f, -0.55f, 0.0f, 1.0f, -0.312f, 0.0f, -0.554f, 0.0f, 1.0f,
+	-0.313f, 0.0f, -0.558f, 0.0f, 1.0f, -0.314f, 0.0f, -0.562f, 0.0f, 1.0f, -0.315f, 0.0f, -0.565f, 0.0f, 1.0f, -0.316f, 0.0f, -0.569f, 0.0f, 1.0f,
+	-0.317f, 0.0f, -0.573f, 0.0f, 1.0f, -0.318f, 0.0f, -0.576f, 0.0f, 1.0f, -0.319f, 0.0f, -0.58f, 0.0f, 1.0f, -0.32f, 0.0f, -0.583f, 0.0f, 1.0f,
+	-0.321f, 0.0f, -0.587f, 0.0f, 1.0f, -0.322f, 0.0f, -0.591f, 0.0f, 1.0f, -0.323f, 0.0f, -0.594f, 0.0f, 1.0f, -0.323f, 0.0f, -0.598f, 0.0f, 1.0f,
+	-0.324f, 0.0f, -0.601f, 0.0f, 1.0f, -0.325f, 0.0f, -0.605f, 0.0f, 1.0f, -0.326f, 0.0f, -0.608f, 0.0f, 1.0f, -0.326f, 0.0f, -0.612f, 0.0f, 1.0f,
+	-0.327f, 0.0f, -0.615f, 0.0f, 1.0f, -0.328f, 0.0f, -0.619f, 0.0f, 1.0f, -0.328f, 0.0f, -0.622f, 0.0f, 1.0f, -0.329f, 0.0f, -0.625f, 0.0f, 1.0f,
+	-0.33f, 0.0f, -0.629f, 0.0f, 1.0f, -0.33f, 0.0f, -0.632f, 0.0f, 1.0f, -0.331f, 0.0f, -0.635f, 0.001f, 1.0f, -0.331f, 0.0f, -0.639f, 0.001f, 1.0f,
+	-0.332f, 0.0f, -0.642f, 0.002f, 1.0f, -0.332f, 0.0f, -0.645f, 0.002f, 1.0f, -0.333f, 0.0f, -0.649f, 0.003f, 1.0f, -0.333f, 0.0f, -0.652f, 0.005f, 1.0f,
+	-0.334f, 0.0f, -0.655f, 0.006f, 1.0f, -0.334f, 0.0f, -0.658f, 0.009f, 1.0f, -0.335f, 0.0f, -0.662f, 0.011f, 1.0f, -0.335f, 0.0f, -0.665f, 0.015f, 1.0f,
+	-0.335f, 0.0f, -0.668f, 0.019f, 1.0f, -0.336f, 0.0f, -0.672f, 0.024f, 1.0f, -0.336f, 0.0f, -0.675f, 0.031f, 1.0f, -0.337f, 0.0f, -0.678f, 0.038f, 1.0f,
+	-0.337f, 0.0f, -0.682f, 0.046f, 1.0f, -0.337f, 0.0f, -0.685f, 0.056f, 1.0f, -0.338f, 0.0f, -0.689f, 0.067f, 1.0f, -0.338f, 0.0f, -0.692f, 0.079f, 1.0f,
+	-0.338f, 0.0f, -0.696f, 0.093f, 1.0f, -0.339f, 0.0f, -0.699f, 0.107f, 1.0f, -0.339f, 0.0f, -0.703f, 0.123f, 1.0f, -0.34f, 0.0f, -0.706f, 0.139f, 1.0f,
+	-0.34f, 0.0f, -0.71f, 0.157f, 1.0f, -0.34f, 0.0f, -0.714f, 0.174f, 1.0f, -0.34f, 0.0f, -0.717f, 0.193f, 1.0f, -0.341f, 0.0f, -0.721f, 0.211f, 1.0f,
+	-0.341f, 0.0f, -0.725f, 0.23f, 1.0f, -0.341f, 0.0f, -0.729f, 0.248f, 1.0f, -0.342f, 0.0f, -0.732f, 0.266f, 1.0f, -0.342f, 0.0f, -0.736f, 0.284f, 1.0f,
+	-0.342f, 0.0f, -0.74f, 0.302f, 1.0f, -0.342f, 0.0f, -0.744f, 0.318f, 1.0f, -0.342f, 0.0f, -0.748f, 0.334f, 1.0f, -0.342f, 0.0f, -0.752f, 0.349f, 1.0f,
+	-0.343f, 0.0f, -0.756f, 0.364f, 1.0f, -0.343f, 0.0f, -0.76f, 0.377f, 1.0f, -0.343f, 0.0f, -0.763f, 0.389f, 1.0f, -0.343f, 0.0f, -0.767f, 0.401f, 1.0f,
+	-0.343f, 0.0f, -0.771f, 0.411f, 1.0f, -0.343f, 0.0f, -0.775f, 0.421f, 1.0f, -0.342f, 0.0f, -0.779f, 0.429f, 1.0f, -0.342f, 0.0f, -0.783f, 0.437f, 1.0f,
+	-0.342f, 0.0f, -0.786f, 0.444f, 1.0f, -0.342f, 0.0f, -0.79f, 0.451f, 1.0f, -0.342f, 0.0f, -0.794f, 0.456f, 1.0f, -0.341f, 0.0f, -0.797f, 0.461f, 1.0f,
+	-0.341f, 0.0f, -0.801f, 0.466f, 1.0f, -0.34f, 0.0f, -0.805f, 0.469f, 1.0f, -0.34f, 0.0f, -0.808f, 0.473f, 1.0f, -0.339f, 0.0f, -0.812f, 0.476f, 1.0f,
+	-0.339f, 0.0f, -0.815f, 0.478f, 1.0f, -0.338f, 0.0f, -0.818f, 0.48f, 1.0f, -0.338f, 0.0f, -0.822f, 0.482f, 1.0f, -0.337f, 0.0f, -0.825f, 0.483f, 1.0f,
+	-0.336f, 0.0f, -0.828f, 0.484f, 1.0f, -0.335f, 0.0f, -0.831f, 0.485f, 1.0f, -0.334f, 0.0f, -0.834f, 0.486f, 1.0f, -0.333f, 0.0f, -0.837f, 0.487f, 1.0f,
+	-0.332f, 0.0f, -0.84f, 0.487f, 1.0f, -0.331f, 0.0f, -0.843f, 0.487f, 1.0f, -0.33f, 0.0f, -0.846f, 0.488f, 1.0f, -0.329f, 0.0f, -0.849f, 0.488f, 1.0f,
+	-0.328f, 0.0f, -0.852f, 0.488f, 1.0f, -0.326f, 0.0f, -0.855f, 0.488f, 1.0f, -0.325f, 0.0f, -0.857f, 0.488f, 1.0f, -0.324f, 0.0f, -0.86f, 0.488f, 1.0f,
+	-0.322f, 0.0f, -0.863f, 0.488f, 1.0f, -0.321f, 0.0f, -0.865f, 0.488f, 1.0f, -0.319f, 0.0f, -0.868f, 0.488f, 1.0f, -0.318f, 0.0f, -0.871f, 0.488f, 1.0f,
+	-0.316f, 0.0f, -0.873f, 0.489f, 1.0f, -0.314f, 0.0f, -0.876f, 0.489f, 1.0f, -0.312f, 0.0f, -0.878f, 0.489f, 1.0f, -0.311f, 0.0f, -0.881f, 0.489f, 1.0f,
+	-0.309f, 0.0f, -0.883f, 0.489f, 1.0f, -0.307f, 0.0f, -0.885f, 0.489f, 1.0f, -0.305f, 0.0f, -0.888f, 0.49f, 1.0f, -0.303f, 0.0f, -0.89f, 0.491f, 1.0f,
+	-0.301f, 0.0f, -0.892f, 0.491f, 1.0f, -0.298f, 0.0f, -0.894f, 0.492f, 1.0f, -0.296f, 0.0f, -0.897f, 0.494f, 1.0f, -0.294f, 0.0f, -0.899f, 0.495f, 1.0f,
+	-0.292f, 0.0f, -0.901f, 0.497f, 1.0f, -0.289f, 0.0f, -0.903f, 0.5f, 1.0f, -0.287f, 0.0f, -0.905f, 0.502f, 1.0f, -0.284f, 0.0f, -0.907f, 0.505f, 1.0f,
+	-0.282f, 0.0f, -0.909f, 0.509f, 1.0f, -0.279f, 0.0f, -0.912f, 0.512f, 1.0f, -0.277f, 0.0f, -0.914f, 0.517f, 1.0f, -0.274f, 0.0f, -0.916f, 0.521f, 1.0f,
+	-0.271f, 0.0f, -0.918f, 0.526f, 1.0f, -0.269f, 0.0f, -0.919f, 0.531f, 1.0f, -0.266f, 0.0f, -0.921f, 0.537f, 1.0f, -0.263f, 0.0f, -0.923f, 0.543f, 1.0f,
+	-0.26f, 0.0f, -0.925f, 0.548f, 1.0f, -0.257f, 0.0f, -0.927f, 0.554f, 1.0f, -0.255f, 0.0f, -0.929f, 0.56f, 1.0f, -0.252f, 0.0f, -0.931f, 0.566f, 1.0f,
+	-0.249f, 0.0f, -0.932f, 0.571f, 1.0f, -0.246f, 0.0f, -0.934f, 0.577f, 1.0f, -0.243f, 0.0f, -0.936f, 0.582f, 1.0f, -0.24f, 0.0f, -0.938f, 0.587f, 1.0f,
+	-0.237f, 0.0f, -0.939f, 0.592f, 1.0f, -0.234f, 0.0f, -0.941f, 0.597f, 1.0f, -0.231f, 0.0f, -0.943f, 0.601f, 1.0f, -0.228f, 0.0f, -0.944f, 0.605f, 1.0f,
+	-0.225f, 0.0f, -0.946f, 0.609f, 1.0f, -0.222f, 0.0f, -0.948f, 0.613f, 1.0f, -0.219f, 0.0f, -0.949f, 0.617f, 1.0f, -0.216f, 0.0f, -0.951f, 0.62f, 1.0f,
+	-0.213f, 0.0f, -0.953f, 0.624f, 1.0f, -0.21f, 0.0f, -0.954f, 0.627f, 1.0f, -0.207f, 0.0f, -0.956f, 0.63f, 1.0f, -0.204f, 0.0f, -0.958f, 0.633f, 1.0f,
+	-0.201f, 0.0f, -0.959f, 0.636f, 1.0f, -0.198f, 0.0f, -0.961f, 0.639f, 1.0f, -0.195f, 0.0f, -0.962f, 0.641f, 1.0f, -0.191f, 0.0f, -0.964f, 0.643f, 1.0f,
+	-0.188f, 0.0f, -0.965f, 0.646f, 1.0f, -0.185f, 0.0f, -0.967f, 0.648f, 1.0f, -0.181f, 0.0f, -0.968f, 0.649f, 1.0f, -0.178f, 0.0f, -0.969f, 0.651f, 1.0f,
+	-0.175f, 0.0f, -0.971f, 0.653f, 1.0f, -0.171f, 0.0f, -0.972f, 0.654f, 1.0f, -0.168f, 0.0f, -0.973f, 0.655f, 1.0f, -0.165f, 0.0f, -0.974f, 0.657f, 1.0f,
+	-0.161f, 0.0f, -0.976f, 0.658f, 1.0f, -0.158f, 0.0f, -0.977f, 0.659f, 1.0f, -0.154f, 0.0f, -0.978f, 0.66f, 1.0f, -0.151f, 0.0f, -0.979f, 0.661f, 1.0f,
+	-0.148f, 0.0f, -0.98f, 0.662f, 1.0f, -0.144f, 0.0f, -0.981f, 0.664f, 1.0f, -0.141f, 0.0f, -0.982f, 0.665f, 1.0f, -0.137f, 0.0f, -0.983f, 0.667f, 1.0f,
+	-0.134f, 0.0f, -0.984f, 0.669f, 1.0f, -0.13f, 0.0f, -0.985f, 0.671f, 1.0f, -0.127f, 0.0f, -0.986f, 0.673f, 1.0f, -0.124f, 0.0f, -0.987f, 0.675f, 1.0f,
+	-0.12f, 0.0f, -0.988f, 0.678f, 1.0f, -0.117f, 0.0f, -0.989f, 0.68f, 1.0f, -0.113f, 0.0f, -0.99f, 0.683f, 1.0f, -0.11f, 0.0f, -0.991f, 0.685f, 1.0f,
+	-0.107f, 0.0f, -0.992f, 0.688f, 1.0f, -0.103f, 0.0f, -0.992f, 0.691f, 1.0f, -0.1f, 0.0f, -0.993f, 0.693f, 1.0f, -0.097f, 0.0f, -0.994f, 0.696f, 1.0f,
+	-0.093f, 0.0f, -0.995f, 0.698f, 1.0f, -0.09f, 0.0f, -0.996f, 0.701f, 1.0f, -0.087f, 0.0f, -0.997f, 0.703f, 1.0f, -0.084f, 0.0f, -0.997f, 0.705f, 1.0f,
+	-0.08f, 0.0f, -0.998f, 0.707f, 1.0f, -0.077f, 0.0f, -0.999f, 0.708f, 1.0f, -0.074f, 0.0f, -1.0f, 0.71f, 1.0f, -0.07f, 0.0f, -1.0f, 0.712f, 1.0f,
+	-0.067f, 0.0f, -1.001f, 0.713f, 1.0f, -0.063f, 0.0f, -1.002f, 0.715f, 1.0f, -0.06f, 0.0f, -1.002f, 0.717f, 1.0f, -0.056f, 0.0f, -1.003f, 0.718f, 1.0f,
+	-0.053f, 0.0f, -1.003f, 0.72f, 1.0f, -0.049f, 0.0f, -1.004f, 0.723f, 1.0f, -0.045f, 0.0f, -1.004f, 0.725f, 1.0f, -0.041f, 0.0f, -1.005f, 0.728f, 1.0f,
+	-0.038f, 0.0f, -1.005f, 0.73f, 1.0f, -0.034f, 0.0f, -1.006f, 0.733f, 1.0f, -0.03f, 0.0f, -1.006f, 0.736f, 1.0f, -0.026f, 0.0f, -1.007f, 0.738f, 1.0f,
+	-0.022f, 0.0f, -1.007f, 0.741f, 1.0f, -0.018f, 0.0f, -1.007f, 0.743f, 1.0f, -0.014f, 0.0f, -1.008f, 0.746f, 1.0f, -0.01f, 0.0f, -1.008f, 0.748f, 1.0f,
+	-0.006f, 0.0f, -1.009f, 0.75f, 1.0f, -0.001f, 0.0f, -1.009f, 0.752f, 1.0f, 0.003f, 0.0f, -1.009f, 0.754f, 1.0f, 0.007f, 0.0f, -1.01f, 0.755f, 1.0f,
+	0.011f, 0.0f, -1.01f, 0.757f, 1.0f, 0.015f, 0.0f, -1.01f, 0.758f, 1.0f, 0.02f, 0.0f, -1.011f, 0.759f, 1.0f, 0.024f, 0.0f, -1.011f, 0.76f, 1.0f,
+	0.028f, 0.0f, -1.011f, 0.761f, 1.0f, 0.033f, 0.0f, -1.011f, 0.761f, 1.0f, 0.037f, 0.0f, -1.012f, 0.762f, 1.0f, 0.041f, 0.0f, -1.012f, 0.762f, 1.0f,
+	0.045f, 0.0f, -1.012f, 0.763f, 1.0f, 0.05f, 0.0f, -1.012f, 0.763f, 1.0f, 0.054f, 0.0f, -1.012f, 0.764f, 1.0f, 0.058f, 0.0f, -1.013f, 0.764f, 1.0f,
+	0.062f, 0.0f, -1.013f, 0.764f, 1.0f, 0.066f, 0.0f, -1.013f, 0.764f, 1.0f, 0.071f, 0.0f, -1.013f, 0.764f, 1.0f, 0.075f, 0.0f, -1.013f, 0.765f, 1.0f,
+	0.079f, 0.0f, -1.013f, 0.765f, 1.0f, 0.083f, 0.0f, -1.013f, 0.765f, 1.0f, 0.087f, 0.0f, -1.013f, 0.765f, 1.0f, 0.091f, 0.0f, -1.013f, 0.765f, 1.0f,
+	0.095f, 0.0f, -1.013f, 0.765f, 1.0f, 0.099f, 0.0f, -1.013f, 0.766f, 1.0f, 0.103f, 0.0f, -1.013f, 0.766f, 1.0f, 0.108f, 0.0f, -1.012f, 0.766f, 1.0f,
+	0.112f, 0.0f, -1.012f, 0.766f, 1.0f, 0.116f, 0.0f, -1.012f, 0.766f, 1.0f, 0.119f, 0.0f, -1.012f, 0.767f, 1.0f, 0.123f, 0.0f, -1.011f, 0.767f, 1.0f,
+	0.127f, 0.0f, -1.011f, 0.767f, 1.0f, 0.131f, 0.0f, -1.01f, 0.767f, 1.0f, 0.135f, 0.0f, -1.01f, 0.767f, 1.0f, 0.139f, 0.0f, -1.009f, 0.768f, 1.0f,
+	0.143f, 0.0f, -1.009f, 0.768f, 1.0f, 0.147f, 0.0f, -1.008f, 0.768f, 1.0f, 0.151f, 0.0f, -1.007f, 0.769f, 1.0f, 0.154f, 0.0f, -1.007f, 0.769f, 1.0f,
+	0.158f, 0.0f, -1.006f, 0.769f, 1.0f, 0.162f, 0.0f, -1.005f, 0.769f, 1.0f, 0.166f, 0.0f, -1.004f, 0.77f, 1.0f, 0.17f, 0.0f, -1.003f, 0.77f, 1.0f,
+	0.173f, 0.0f, -1.003f, 0.77f, 1.0f, 0.177f, 0.0f, -1.002f, 0.771f, 1.0f, 0.181f, 0.0f, -1.001f, 0.771f, 1.0f, 0.184f, 0.0f, -1.0f, 0.772f, 1.0f,
+	0.188f, 0.0f, -0.999f, 0.772f, 1.0f, 0.192f, 0.0f, -0.998f, 0.773f, 1.0f, 0.195f, 0.0f, -0.997f, 0.773f, 1.0f, 0.199f, 0.0f, -0.996f, 0.774f, 1.0f,
+	0.202f, 0.0f, -0.995f, 0.774f, 1.0f, 0.206f, 0.0f, -0.994f, 0.775f, 1.0f, 0.209f, 0.0f, -0.993f, 0.776f, 1.0f, 0.213f, 0.0f, -0.992f, 0.776f, 1.0f,
+	0.216f, 0.0f, -0.991f, 0.777f, 1.0f, 0.22f, 0.0f, -0.99f, 0.777f, 1.0f, 0.223f, 0.0f, -0.988f, 0.778f, 1.0f, 0.227f, 0.0f, -0.987f, 0.778f, 1.0f,
+	0.23f, 0.0f, -0.986f, 0.778f, 1.0f, 0.233f, 0.0f, -0.985f, 0.779f, 1.0f, 0.237f, 0.0f, -0.983f, 0.779f, 1.0f, 0.24f, 0.0f, -0.982f, 0.779f, 1.0f,
+	0.243f, 0.0f, -0.981f, 0.779f, 1.0f, 0.246f, 0.0f, -0.979f, 0.778f, 1.0f, 0.249f, 0.0f, -0.978f, 0.778f, 1.0f, 0.252f, 0.0f, -0.976f, 0.777f, 1.0f,
+	0.255f, 0.0f, -0.975f, 0.777f, 1.0f, 0.258f, 0.0f, -0.973f, 0.776f, 1.0f, 0.261f, 0.0f, -0.972f, 0.775f, 1.0f, 0.264f, 0.0f, -0.97f, 0.773f, 1.0f,
+	0.267f, 0.0f, -0.968f, 0.772f, 1.0f, 0.269f, 0.0f, -0.967f, 0.77f, 1.0f, 0.272f, 0.0f, -0.965f, 0.769f, 1.0f, 0.275f, 0.0f, -0.963f, 0.767f, 1.0f,
+	0.277f, 0.0f, -0.961f, 0.765f, 1.0f, 0.279f, 0.0f, -0.959f, 0.763f, 1.0f, 0.282f, 0.0f, -0.957f, 0.761f, 1.0f, 0.284f, 0.0f, -0.955f, 0.759f, 1.0f,
+	0.286f, 0.0f, -0.953f, 0.756f, 1.0f, 0.288f, 0.0f, -0.951f, 0.754f, 1.0f, 0.29f, 0.0f, -0.948f, 0.752f, 1.0f, 0.292f, 0.0f, -0.946f, 0.749f, 1.0f,
+	0.294f, 0.0f, -0.944f, 0.746f, 1.0f, 0.296f, 0.0f, -0.941f, 0.744f, 1.0f, 0.298f, 0.0f, -0.939f, 0.741f, 1.0f, 0.3f, 0.0f, -0.937f, 0.738f, 1.0f,
+	0.302f, 0.0f, -0.934f, 0.736f, 1.0f, 0.303f, 0.0f, -0.932f, 0.733f, 1.0f, 0.305f, 0.0f, -0.929f, 0.73f, 1.0f, 0.306f, 0.0f, -0.926f, 0.727f, 1.0f,
+	0.308f, 0.0f, -0.924f, 0.724f, 1.0f, 0.309f, 0.0f, -0.921f, 0.721f, 1.0f, 0.311f, 0.0f, -0.918f, 0.719f, 1.0f, 0.312f, 0.0f, -0.916f, 0.716f, 1.0f,
+	0.313f, 0.0f, -0.913f, 0.713f, 1.0f, 0.315f, 0.0f, -0.91f, 0.71f, 1.0f, 0.316f, 0.0f, -0.907f, 0.707f, 1.0f, 0.317f, 0.0f, -0.904f, 0.704f, 1.0f,
+	0.318f, 0.0f, -0.901f, 0.7f, 1.0f, 0.319f, 0.0f, -0.898f, 0.697f, 1.0f, 0.32f, 0.0f, -0.895f, 0.693f, 1.0f, 0.321f, 0.0f, -0.892f, 0.69f, 1.0f,
+	0.322f, 0.0f, -0.889f, 0.686f, 1.0f, 0.323f, 0.0f, -0.886f, 0.681f, 1.0f, 0.324f, 0.0f, -0.883f, 0.677f, 1.0f, 0.325f, 0.0f, -0.88f, 0.672f, 1.0f,
+	0.326f, 0.0f, -0.876f, 0.667f, 1.0f, 0.326f, 0.0f, -0.873f, 0.661f, 1.0f, 0.327f, 0.0f, -0.87f, 0.655f, 1.0f, 0.328f, 0.0f, -0.867f, 0.649f, 1.0f,
+	0.329f, 0.0f, -0.864f, 0.643f, 1.0f, 0.329f, 0.0f, -0.861f, 0.637f, 1.0f, 0.33f, 0.0f, -0.857f, 0.63f, 1.0f, 0.331f, 0.0f, -0.854f, 0.624f, 1.0f,
+	0.331f, 0.0f, -0.851f, 0.618f, 1.0f, 0.332f, 0.0f, -0.848f, 0.613f, 1.0f, 0.333f, 0.0f, -0.845f, 0.607f, 1.0f, 0.333f, 0.0f, -0.841f, 0.603f, 1.0f,
+	0.334f, 0.0f, -0.838f, 0.598f, 1.0f, 0.334f, 0.0f, -0.835f, 0.594f, 1.0f, 0.335f, 0.0f, -0.832f, 0.591f, 1.0f, 0.335f, 0.0f, -0.828f, 0.588f, 1.0f,
+	0.335f, 0.0f, -0.825f, 0.586f, 1.0f, 0.336f, 0.0f, -0.821f, 0.584f, 1.0f, 0.336f, 0.0f, -0.818f, 0.582f, 1.0f, 0.336f, 0.0f, -0.814f, 0.581f, 1.0f,
+	0.337f, 0.0f, -0.811f, 0.58f, 1.0f, 0.337f, 0.0f, -0.807f, 0.58f, 1.0f, 0.337f, 0.0f, -0.803f, 0.579f, 1.0f, 0.337f, 0.0f, -0.799f, 0.579f, 1.0f,
+	0.337f, 0.0f, -0.795f, 0.578f, 1.0f, 0.337f, 0.0f, -0.79f, 0.578f, 1.0f, 0.337f, 0.0f, -0.786f, 0.578f, 1.0f, 0.338f, 0.0f, -0.782f, 0.577f, 1.0f,
+	0.338f, 0.0f, -0.777f, 0.576f, 1.0f, 0.337f, 0.0f, -0.772f, 0.574f, 1.0f, 0.337f, 0.0f, -0.767f, 0.572f, 1.0f, 0.337f, 0.0f, -0.762f, 0.569f, 1.0f,
+	0.337f, 0.0f, -0.756f, 0.565f, 1.0f, 0.337f, 0.0f, -0.751f, 0.559f, 1.0f, 0.337f, 0.0f, -0.745f, 0.553f, 1.0f, 0.336f, 0.0f, -0.739f, 0.544f, 1.0f,
+	0.336f, 0.0f, -0.732f, 0.534f, 1.0f, 0.335f, 0.0f, -0.725f, 0.521f, 1.0f, 0.334f, 0.0f, -0.718f, 0.505f, 1.0f, 0.333f, 0.0f, -0.711f, 0.487f, 1.0f,
+	0.332f, 0.0f, -0.703f, 0.466f, 1.0f, 0.331f, 0.0f, -0.694f, 0.441f, 1.0f, 0.33f, 0.0f, -0.686f, 0.413f, 1.0f, 0.328f, 0.0f, -0.677f, 0.383f, 1.0f,
+	0.326f, 0.0f, -0.667f, 0.35f, 1.0f, 0.325f, 0.0f, -0.657f, 0.316f, 1.0f, 0.323f, 0.0f, -0.647f, 0.281f, 1.0f, 0.32f, 0.0f, -0.636f, 0.246f, 1.0f,
+	0.318f, 0.0f, -0.625f, 0.212f, 1.0f, 0.316f, 0.0f, -0.614f, 0.18f, 1.0f, 0.313f, 0.0f, -0.603f, 0.149f, 1.0f, 0.311f, 0.0f, -0.592f, 0.12f, 1.0f,
+	0.308f, 0.0f, -0.581f, 0.093f, 1.0f, 0.306f, 0.0f, -0.57f, 0.069f, 1.0f, 0.303f, 0.0f, -0.559f, 0.046f, 1.0f, 0.301f, 0.0f, -0.55f, 0.027f, 1.0f,
+	0.298f, 0.0f, -0.537f, 0.0f, 1.0f,
+};
+
+static const float data26[41 * GP_PRIM_DATABUF_SIZE] = {
+	-0.104f, 0.0f, -0.795f, 0.258f, 1.0f, -0.1f, 0.0f, -0.799f, 0.28f, 1.0f, -0.097f, 0.0f, -0.801f, 0.294f, 1.0f, -0.094f, 0.0f, -0.805f, 0.312f, 1.0f,
+	-0.09f, 0.0f, -0.808f, 0.328f, 1.0f, -0.086f, 0.0f, -0.811f, 0.345f, 1.0f, -0.082f, 0.0f, -0.815f, 0.361f, 1.0f, -0.078f, 0.0f, -0.818f, 0.377f, 1.0f,
+	-0.073f, 0.0f, -0.821f, 0.392f, 1.0f, -0.068f, 0.0f, -0.824f, 0.407f, 1.0f, -0.063f, 0.0f, -0.827f, 0.421f, 1.0f, -0.057f, 0.0f, -0.83f, 0.435f, 1.0f,
+	-0.051f, 0.0f, -0.833f, 0.448f, 1.0f, -0.045f, 0.0f, -0.835f, 0.46f, 1.0f, -0.039f, 0.0f, -0.837f, 0.471f, 1.0f, -0.033f, 0.0f, -0.839f, 0.481f, 1.0f,
+	-0.026f, 0.0f, -0.841f, 0.491f, 1.0f, -0.019f, 0.0f, -0.842f, 0.5f, 1.0f, -0.012f, 0.0f, -0.843f, 0.508f, 1.0f, -0.005f, 0.0f, -0.843f, 0.515f, 1.0f,
+	0.002f, 0.0f, -0.843f, 0.522f, 1.0f, 0.009f, 0.0f, -0.843f, 0.527f, 1.0f, 0.016f, 0.0f, -0.842f, 0.532f, 1.0f, 0.023f, 0.0f, -0.841f, 0.535f, 1.0f,
+	0.03f, 0.0f, -0.839f, 0.538f, 1.0f, 0.037f, 0.0f, -0.837f, 0.538f, 1.0f, 0.044f, 0.0f, -0.835f, 0.537f, 1.0f, 0.05f, 0.0f, -0.833f, 0.532f, 1.0f,
+	0.056f, 0.0f, -0.83f, 0.524f, 1.0f, 0.062f, 0.0f, -0.827f, 0.513f, 1.0f, 0.068f, 0.0f, -0.823f, 0.496f, 1.0f, 0.074f, 0.0f, -0.82f, 0.474f, 1.0f,
+	0.079f, 0.0f, -0.817f, 0.446f, 1.0f, 0.084f, 0.0f, -0.813f, 0.411f, 1.0f, 0.089f, 0.0f, -0.809f, 0.37f, 1.0f, 0.093f, 0.0f, -0.806f, 0.323f, 1.0f,
+	0.098f, 0.0f, -0.802f, 0.269f, 1.0f, 0.102f, 0.0f, -0.798f, 0.211f, 1.0f, 0.106f, 0.0f, -0.795f, 0.146f, 1.0f, 0.109f, 0.0f, -0.792f, 0.089f, 1.0f,
+	0.114f, 0.0f, -0.787f, 0.0f, 1.0f,
+};
+
+static const float data27[77 * GP_PRIM_DATABUF_SIZE] = {
+	-0.105f, 0.0f, -0.259f, 0.214f, 1.0f, -0.103f, 0.0f, -0.253f, 0.263f, 1.0f, -0.101f, 0.0f, -0.249f, 0.291f, 1.0f, -0.099f, 0.0f, -0.244f, 0.324f, 1.0f,
+	-0.098f, 0.0f, -0.24f, 0.351f, 1.0f, -0.096f, 0.0f, -0.235f, 0.376f, 1.0f, -0.094f, 0.0f, -0.231f, 0.397f, 1.0f, -0.092f, 0.0f, -0.227f, 0.416f, 1.0f,
+	-0.09f, 0.0f, -0.222f, 0.432f, 1.0f, -0.088f, 0.0f, -0.218f, 0.446f, 1.0f, -0.086f, 0.0f, -0.215f, 0.458f, 1.0f, -0.084f, 0.0f, -0.211f, 0.469f, 1.0f,
+	-0.082f, 0.0f, -0.208f, 0.478f, 1.0f, -0.079f, 0.0f, -0.205f, 0.486f, 1.0f, -0.077f, 0.0f, -0.203f, 0.494f, 1.0f, -0.075f, 0.0f, -0.2f, 0.501f, 1.0f,
+	-0.073f, 0.0f, -0.198f, 0.508f, 1.0f, -0.071f, 0.0f, -0.197f, 0.515f, 1.0f, -0.068f, 0.0f, -0.195f, 0.521f, 1.0f, -0.066f, 0.0f, -0.194f, 0.528f, 1.0f,
+	-0.064f, 0.0f, -0.194f, 0.534f, 1.0f, -0.061f, 0.0f, -0.194f, 0.54f, 1.0f, -0.059f, 0.0f, -0.194f, 0.546f, 1.0f, -0.056f, 0.0f, -0.194f, 0.551f, 1.0f,
+	-0.054f, 0.0f, -0.195f, 0.555f, 1.0f, -0.051f, 0.0f, -0.196f, 0.559f, 1.0f, -0.049f, 0.0f, -0.198f, 0.562f, 1.0f, -0.046f, 0.0f, -0.2f, 0.565f, 1.0f,
+	-0.044f, 0.0f, -0.201f, 0.567f, 1.0f, -0.041f, 0.0f, -0.204f, 0.568f, 1.0f, -0.039f, 0.0f, -0.206f, 0.569f, 1.0f, -0.036f, 0.0f, -0.208f, 0.57f, 1.0f,
+	-0.034f, 0.0f, -0.21f, 0.571f, 1.0f, -0.032f, 0.0f, -0.213f, 0.571f, 1.0f, -0.029f, 0.0f, -0.215f, 0.571f, 1.0f, -0.027f, 0.0f, -0.217f, 0.572f, 1.0f,
+	-0.024f, 0.0f, -0.219f, 0.572f, 1.0f, -0.022f, 0.0f, -0.221f, 0.572f, 1.0f, -0.019f, 0.0f, -0.222f, 0.572f, 1.0f, -0.016f, 0.0f, -0.224f, 0.572f, 1.0f,
+	-0.013f, 0.0f, -0.225f, 0.572f, 1.0f, -0.01f, 0.0f, -0.226f, 0.573f, 1.0f, -0.007f, 0.0f, -0.227f, 0.573f, 1.0f, -0.004f, 0.0f, -0.227f, 0.573f, 1.0f,
+	-0.001f, 0.0f, -0.227f, 0.574f, 1.0f, 0.002f, 0.0f, -0.227f, 0.575f, 1.0f, 0.005f, 0.0f, -0.227f, 0.576f, 1.0f, 0.008f, 0.0f, -0.226f, 0.577f, 1.0f,
+	0.011f, 0.0f, -0.225f, 0.578f, 1.0f, 0.015f, 0.0f, -0.224f, 0.579f, 1.0f, 0.018f, 0.0f, -0.222f, 0.58f, 1.0f, 0.021f, 0.0f, -0.221f, 0.581f, 1.0f,
+	0.024f, 0.0f, -0.219f, 0.582f, 1.0f, 0.027f, 0.0f, -0.217f, 0.582f, 1.0f, 0.03f, 0.0f, -0.215f, 0.583f, 1.0f, 0.033f, 0.0f, -0.213f, 0.583f, 1.0f,
+	0.036f, 0.0f, -0.212f, 0.583f, 1.0f, 0.039f, 0.0f, -0.21f, 0.583f, 1.0f, 0.042f, 0.0f, -0.208f, 0.583f, 1.0f, 0.045f, 0.0f, -0.207f, 0.583f, 1.0f,
+	0.048f, 0.0f, -0.205f, 0.583f, 1.0f, 0.051f, 0.0f, -0.204f, 0.583f, 1.0f, 0.054f, 0.0f, -0.203f, 0.583f, 1.0f, 0.058f, 0.0f, -0.203f, 0.583f, 1.0f,
+	0.061f, 0.0f, -0.202f, 0.583f, 1.0f, 0.064f, 0.0f, -0.202f, 0.574f, 1.0f, 0.067f, 0.0f, -0.202f, 0.565f, 1.0f, 0.07f, 0.0f, -0.203f, 0.556f, 1.0f,
+	0.073f, 0.0f, -0.203f, 0.547f, 1.0f, 0.075f, 0.0f, -0.204f, 0.515f, 1.0f, 0.078f, 0.0f, -0.204f, 0.483f, 1.0f, 0.08f, 0.0f, -0.205f, 0.451f, 1.0f,
+	0.083f, 0.0f, -0.206f, 0.419f, 1.0f, 0.085f, 0.0f, -0.207f, 0.314f, 1.0f, 0.087f, 0.0f, -0.208f, 0.21f, 1.0f, 0.089f, 0.0f, -0.209f, 0.105f, 1.0f,
+	0.091f, 0.0f, -0.21f, 0.0f, 1.0f,
+};
+
+static const float data28[257 * GP_PRIM_DATABUF_SIZE] = {
+	-0.637f, 0.0f, -0.172f, 0.0f, 1.0f, -0.641f, 0.0f, -0.172f, 0.0f, 1.0f, -0.643f, 0.0f, -0.172f, 0.0f, 1.0f, -0.646f, 0.0f, -0.172f, 0.0f, 1.0f,
+	-0.65f, 0.0f, -0.172f, 0.0f, 1.0f, -0.653f, 0.0f, -0.172f, 0.0f, 1.0f, -0.657f, 0.0f, -0.172f, 0.0f, 1.0f, -0.66f, 0.0f, -0.172f, 0.0f, 1.0f,
+	-0.664f, 0.0f, -0.171f, 0.0f, 1.0f, -0.668f, 0.0f, -0.171f, 0.0f, 1.0f, -0.672f, 0.0f, -0.171f, 0.0f, 1.0f, -0.677f, 0.0f, -0.171f, 0.0f, 1.0f,
+	-0.681f, 0.0f, -0.171f, 0.0f, 1.0f, -0.685f, 0.0f, -0.171f, 0.0f, 1.0f, -0.69f, 0.0f, -0.17f, 0.0f, 1.0f, -0.694f, 0.0f, -0.17f, 0.0f, 1.0f,
+	-0.699f, 0.0f, -0.17f, 0.0f, 1.0f, -0.704f, 0.0f, -0.169f, 0.0f, 1.0f, -0.708f, 0.0f, -0.169f, 0.0f, 1.0f, -0.713f, 0.0f, -0.168f, 0.0f, 1.0f,
+	-0.717f, 0.0f, -0.168f, 0.0f, 1.0f, -0.722f, 0.0f, -0.167f, 0.0f, 1.0f, -0.727f, 0.0f, -0.167f, 0.0f, 1.0f, -0.731f, 0.0f, -0.166f, 0.0f, 1.0f,
+	-0.735f, 0.0f, -0.166f, 0.0f, 1.0f, -0.74f, 0.0f, -0.165f, 0.0f, 1.0f, -0.744f, 0.0f, -0.164f, 0.0f, 1.0f, -0.749f, 0.0f, -0.163f, 0.0f, 1.0f,
+	-0.753f, 0.0f, -0.163f, 0.0f, 1.0f, -0.757f, 0.0f, -0.162f, 0.0f, 1.0f, -0.761f, 0.0f, -0.161f, 0.0f, 1.0f, -0.765f, 0.0f, -0.16f, 0.0f, 1.0f,
+	-0.769f, 0.0f, -0.159f, 0.0f, 1.0f, -0.773f, 0.0f, -0.158f, 0.0f, 1.0f, -0.777f, 0.0f, -0.157f, 0.0f, 1.0f, -0.781f, 0.0f, -0.156f, 0.001f, 1.0f,
+	-0.785f, 0.0f, -0.155f, 0.001f, 1.0f, -0.789f, 0.0f, -0.154f, 0.002f, 1.0f, -0.793f, 0.0f, -0.153f, 0.003f, 1.0f, -0.797f, 0.0f, -0.152f, 0.004f, 1.0f,
+	-0.801f, 0.0f, -0.15f, 0.005f, 1.0f, -0.805f, 0.0f, -0.149f, 0.006f, 1.0f, -0.81f, 0.0f, -0.147f, 0.008f, 1.0f, -0.814f, 0.0f, -0.146f, 0.009f, 1.0f,
+	-0.818f, 0.0f, -0.144f, 0.011f, 1.0f, -0.823f, 0.0f, -0.143f, 0.014f, 1.0f, -0.827f, 0.0f, -0.141f, 0.016f, 1.0f, -0.831f, 0.0f, -0.139f, 0.019f, 1.0f,
+	-0.836f, 0.0f, -0.138f, 0.022f, 1.0f, -0.84f, 0.0f, -0.136f, 0.024f, 1.0f, -0.844f, 0.0f, -0.135f, 0.026f, 1.0f, -0.849f, 0.0f, -0.133f, 0.027f, 1.0f,
+	-0.853f, 0.0f, -0.131f, 0.027f, 1.0f, -0.857f, 0.0f, -0.13f, 0.027f, 1.0f, -0.861f, 0.0f, -0.128f, 0.027f, 1.0f, -0.865f, 0.0f, -0.126f, 0.027f, 1.0f,
+	-0.868f, 0.0f, -0.125f, 0.026f, 1.0f, -0.872f, 0.0f, -0.123f, 0.025f, 1.0f, -0.876f, 0.0f, -0.121f, 0.025f, 1.0f, -0.879f, 0.0f, -0.119f, 0.024f, 1.0f,
+	-0.883f, 0.0f, -0.118f, 0.023f, 1.0f, -0.886f, 0.0f, -0.116f, 0.022f, 1.0f, -0.89f, 0.0f, -0.114f, 0.022f, 1.0f, -0.894f, 0.0f, -0.112f, 0.021f, 1.0f,
+	-0.898f, 0.0f, -0.11f, 0.022f, 1.0f, -0.901f, 0.0f, -0.107f, 0.022f, 1.0f, -0.905f, 0.0f, -0.105f, 0.024f, 1.0f, -0.909f, 0.0f, -0.103f, 0.026f, 1.0f,
+	-0.913f, 0.0f, -0.1f, 0.029f, 1.0f, -0.917f, 0.0f, -0.098f, 0.032f, 1.0f, -0.921f, 0.0f, -0.095f, 0.035f, 1.0f, -0.926f, 0.0f, -0.092f, 0.039f, 1.0f,
+	-0.93f, 0.0f, -0.09f, 0.043f, 1.0f, -0.934f, 0.0f, -0.087f, 0.047f, 1.0f, -0.938f, 0.0f, -0.084f, 0.051f, 1.0f, -0.942f, 0.0f, -0.081f, 0.055f, 1.0f,
+	-0.946f, 0.0f, -0.078f, 0.06f, 1.0f, -0.95f, 0.0f, -0.075f, 0.065f, 1.0f, -0.954f, 0.0f, -0.073f, 0.07f, 1.0f, -0.958f, 0.0f, -0.07f, 0.075f, 1.0f,
+	-0.961f, 0.0f, -0.067f, 0.081f, 1.0f, -0.965f, 0.0f, -0.064f, 0.087f, 1.0f, -0.968f, 0.0f, -0.061f, 0.092f, 1.0f, -0.972f, 0.0f, -0.058f, 0.098f, 1.0f,
+	-0.975f, 0.0f, -0.055f, 0.103f, 1.0f, -0.979f, 0.0f, -0.053f, 0.108f, 1.0f, -0.982f, 0.0f, -0.05f, 0.112f, 1.0f, -0.985f, 0.0f, -0.047f, 0.116f, 1.0f,
+	-0.988f, 0.0f, -0.045f, 0.12f, 1.0f, -0.991f, 0.0f, -0.042f, 0.123f, 1.0f, -0.994f, 0.0f, -0.039f, 0.126f, 1.0f, -0.997f, 0.0f, -0.037f, 0.129f, 1.0f,
+	-1.0f, 0.0f, -0.034f, 0.131f, 1.0f, -1.003f, 0.0f, -0.031f, 0.133f, 1.0f, -1.005f, 0.0f, -0.029f, 0.135f, 1.0f, -1.008f, 0.0f, -0.026f, 0.137f, 1.0f,
+	-1.01f, 0.0f, -0.024f, 0.139f, 1.0f, -1.013f, 0.0f, -0.021f, 0.141f, 1.0f, -1.016f, 0.0f, -0.018f, 0.143f, 1.0f, -1.018f, 0.0f, -0.016f, 0.144f, 1.0f,
+	-1.02f, 0.0f, -0.013f, 0.146f, 1.0f, -1.023f, 0.0f, -0.011f, 0.148f, 1.0f, -1.025f, 0.0f, -0.008f, 0.149f, 1.0f, -1.027f, 0.0f, -0.006f, 0.151f, 1.0f,
+	-1.029f, 0.0f, -0.003f, 0.152f, 1.0f, -1.032f, 0.0f, -0.001f, 0.154f, 1.0f, -1.034f, 0.0f, 0.001f, 0.154f, 1.0f, -1.036f, 0.0f, 0.004f, 0.155f, 1.0f,
+	-1.038f, 0.0f, 0.006f, 0.156f, 1.0f, -1.041f, 0.0f, 0.008f, 0.156f, 1.0f, -1.043f, 0.0f, 0.01f, 0.157f, 1.0f, -1.045f, 0.0f, 0.013f, 0.157f, 1.0f,
+	-1.047f, 0.0f, 0.015f, 0.157f, 1.0f, -1.049f, 0.0f, 0.018f, 0.158f, 1.0f, -1.051f, 0.0f, 0.02f, 0.158f, 1.0f, -1.053f, 0.0f, 0.023f, 0.158f, 1.0f,
+	-1.055f, 0.0f, 0.025f, 0.158f, 1.0f, -1.057f, 0.0f, 0.028f, 0.158f, 1.0f, -1.059f, 0.0f, 0.03f, 0.158f, 1.0f, -1.061f, 0.0f, 0.033f, 0.158f, 1.0f,
+	-1.063f, 0.0f, 0.036f, 0.158f, 1.0f, -1.065f, 0.0f, 0.038f, 0.158f, 1.0f, -1.067f, 0.0f, 0.041f, 0.158f, 1.0f, -1.069f, 0.0f, 0.044f, 0.157f, 1.0f,
+	-1.071f, 0.0f, 0.047f, 0.157f, 1.0f, -1.073f, 0.0f, 0.049f, 0.156f, 1.0f, -1.074f, 0.0f, 0.052f, 0.155f, 1.0f, -1.076f, 0.0f, 0.055f, 0.154f, 1.0f,
+	-1.078f, 0.0f, 0.058f, 0.153f, 1.0f, -1.08f, 0.0f, 0.061f, 0.152f, 1.0f, -1.082f, 0.0f, 0.064f, 0.15f, 1.0f, -1.083f, 0.0f, 0.067f, 0.148f, 1.0f,
+	-1.085f, 0.0f, 0.07f, 0.146f, 1.0f, -1.087f, 0.0f, 0.073f, 0.144f, 1.0f, -1.089f, 0.0f, 0.076f, 0.142f, 1.0f, -1.091f, 0.0f, 0.08f, 0.14f, 1.0f,
+	-1.092f, 0.0f, 0.083f, 0.138f, 1.0f, -1.094f, 0.0f, 0.086f, 0.136f, 1.0f, -1.096f, 0.0f, 0.09f, 0.135f, 1.0f, -1.097f, 0.0f, 0.093f, 0.134f, 1.0f,
+	-1.099f, 0.0f, 0.096f, 0.134f, 1.0f, -1.101f, 0.0f, 0.1f, 0.134f, 1.0f, -1.103f, 0.0f, 0.103f, 0.136f, 1.0f, -1.104f, 0.0f, 0.107f, 0.139f, 1.0f,
+	-1.106f, 0.0f, 0.111f, 0.144f, 1.0f, -1.107f, 0.0f, 0.114f, 0.15f, 1.0f, -1.109f, 0.0f, 0.118f, 0.158f, 1.0f, -1.11f, 0.0f, 0.122f, 0.167f, 1.0f,
+	-1.111f, 0.0f, 0.126f, 0.178f, 1.0f, -1.113f, 0.0f, 0.13f, 0.191f, 1.0f, -1.114f, 0.0f, 0.134f, 0.205f, 1.0f, -1.115f, 0.0f, 0.138f, 0.22f, 1.0f,
+	-1.116f, 0.0f, 0.142f, 0.237f, 1.0f, -1.117f, 0.0f, 0.146f, 0.254f, 1.0f, -1.118f, 0.0f, 0.15f, 0.272f, 1.0f, -1.119f, 0.0f, 0.155f, 0.291f, 1.0f,
+	-1.119f, 0.0f, 0.159f, 0.31f, 1.0f, -1.12f, 0.0f, 0.163f, 0.329f, 1.0f, -1.121f, 0.0f, 0.167f, 0.348f, 1.0f, -1.121f, 0.0f, 0.172f, 0.367f, 1.0f,
+	-1.122f, 0.0f, 0.176f, 0.386f, 1.0f, -1.122f, 0.0f, 0.18f, 0.405f, 1.0f, -1.123f, 0.0f, 0.184f, 0.423f, 1.0f, -1.123f, 0.0f, 0.189f, 0.441f, 1.0f,
+	-1.124f, 0.0f, 0.193f, 0.458f, 1.0f, -1.124f, 0.0f, 0.197f, 0.475f, 1.0f, -1.124f, 0.0f, 0.202f, 0.492f, 1.0f, -1.124f, 0.0f, 0.206f, 0.508f, 1.0f,
+	-1.125f, 0.0f, 0.21f, 0.524f, 1.0f, -1.125f, 0.0f, 0.214f, 0.539f, 1.0f, -1.125f, 0.0f, 0.218f, 0.554f, 1.0f, -1.124f, 0.0f, 0.223f, 0.568f, 1.0f,
+	-1.124f, 0.0f, 0.227f, 0.581f, 1.0f, -1.124f, 0.0f, 0.231f, 0.593f, 1.0f, -1.124f, 0.0f, 0.235f, 0.604f, 1.0f, -1.123f, 0.0f, 0.239f, 0.614f, 1.0f,
+	-1.123f, 0.0f, 0.243f, 0.624f, 1.0f, -1.122f, 0.0f, 0.247f, 0.632f, 1.0f, -1.122f, 0.0f, 0.251f, 0.64f, 1.0f, -1.121f, 0.0f, 0.255f, 0.646f, 1.0f,
+	-1.121f, 0.0f, 0.258f, 0.653f, 1.0f, -1.12f, 0.0f, 0.262f, 0.658f, 1.0f, -1.119f, 0.0f, 0.266f, 0.663f, 1.0f, -1.118f, 0.0f, 0.269f, 0.668f, 1.0f,
+	-1.117f, 0.0f, 0.272f, 0.673f, 1.0f, -1.117f, 0.0f, 0.276f, 0.678f, 1.0f, -1.116f, 0.0f, 0.279f, 0.682f, 1.0f, -1.115f, 0.0f, 0.282f, 0.687f, 1.0f,
+	-1.113f, 0.0f, 0.285f, 0.692f, 1.0f, -1.112f, 0.0f, 0.289f, 0.697f, 1.0f, -1.111f, 0.0f, 0.292f, 0.702f, 1.0f, -1.11f, 0.0f, 0.294f, 0.708f, 1.0f,
+	-1.109f, 0.0f, 0.297f, 0.713f, 1.0f, -1.108f, 0.0f, 0.3f, 0.718f, 1.0f, -1.106f, 0.0f, 0.303f, 0.724f, 1.0f, -1.105f, 0.0f, 0.306f, 0.73f, 1.0f,
+	-1.104f, 0.0f, 0.309f, 0.735f, 1.0f, -1.102f, 0.0f, 0.312f, 0.741f, 1.0f, -1.101f, 0.0f, 0.315f, 0.746f, 1.0f, -1.099f, 0.0f, 0.318f, 0.751f, 1.0f,
+	-1.098f, 0.0f, 0.321f, 0.756f, 1.0f, -1.096f, 0.0f, 0.323f, 0.761f, 1.0f, -1.094f, 0.0f, 0.326f, 0.766f, 1.0f, -1.093f, 0.0f, 0.329f, 0.771f, 1.0f,
+	-1.091f, 0.0f, 0.332f, 0.776f, 1.0f, -1.089f, 0.0f, 0.335f, 0.781f, 1.0f, -1.087f, 0.0f, 0.338f, 0.786f, 1.0f, -1.085f, 0.0f, 0.341f, 0.791f, 1.0f,
+	-1.082f, 0.0f, 0.344f, 0.797f, 1.0f, -1.08f, 0.0f, 0.347f, 0.802f, 1.0f, -1.078f, 0.0f, 0.349f, 0.808f, 1.0f, -1.075f, 0.0f, 0.352f, 0.814f, 1.0f,
+	-1.072f, 0.0f, 0.355f, 0.82f, 1.0f, -1.069f, 0.0f, 0.358f, 0.826f, 1.0f, -1.066f, 0.0f, 0.36f, 0.831f, 1.0f, -1.063f, 0.0f, 0.363f, 0.837f, 1.0f,
+	-1.059f, 0.0f, 0.366f, 0.842f, 1.0f, -1.055f, 0.0f, 0.368f, 0.847f, 1.0f, -1.051f, 0.0f, 0.371f, 0.851f, 1.0f, -1.047f, 0.0f, 0.373f, 0.856f, 1.0f,
+	-1.042f, 0.0f, 0.375f, 0.86f, 1.0f, -1.037f, 0.0f, 0.378f, 0.863f, 1.0f, -1.031f, 0.0f, 0.38f, 0.866f, 1.0f, -1.026f, 0.0f, 0.382f, 0.869f, 1.0f,
+	-1.02f, 0.0f, 0.384f, 0.871f, 1.0f, -1.014f, 0.0f, 0.386f, 0.873f, 1.0f, -1.007f, 0.0f, 0.387f, 0.875f, 1.0f, -1.0f, 0.0f, 0.389f, 0.876f, 1.0f,
+	-0.994f, 0.0f, 0.39f, 0.877f, 1.0f, -0.987f, 0.0f, 0.392f, 0.878f, 1.0f, -0.979f, 0.0f, 0.393f, 0.879f, 1.0f, -0.972f, 0.0f, 0.394f, 0.88f, 1.0f,
+	-0.964f, 0.0f, 0.395f, 0.881f, 1.0f, -0.956f, 0.0f, 0.395f, 0.881f, 1.0f, -0.948f, 0.0f, 0.395f, 0.882f, 1.0f, -0.94f, 0.0f, 0.395f, 0.882f, 1.0f,
+	-0.932f, 0.0f, 0.395f, 0.883f, 1.0f, -0.923f, 0.0f, 0.394f, 0.883f, 1.0f, -0.915f, 0.0f, 0.393f, 0.883f, 1.0f, -0.906f, 0.0f, 0.391f, 0.883f, 1.0f,
+	-0.896f, 0.0f, 0.389f, 0.881f, 1.0f, -0.887f, 0.0f, 0.386f, 0.876f, 1.0f, -0.877f, 0.0f, 0.382f, 0.866f, 1.0f, -0.867f, 0.0f, 0.378f, 0.85f, 1.0f,
+	-0.857f, 0.0f, 0.373f, 0.828f, 1.0f, -0.848f, 0.0f, 0.368f, 0.799f, 1.0f, -0.838f, 0.0f, 0.363f, 0.764f, 1.0f, -0.829f, 0.0f, 0.357f, 0.723f, 1.0f,
+	-0.819f, 0.0f, 0.352f, 0.679f, 1.0f, -0.811f, 0.0f, 0.347f, 0.631f, 1.0f, -0.802f, 0.0f, 0.342f, 0.579f, 1.0f, -0.794f, 0.0f, 0.338f, 0.525f, 1.0f,
+	-0.786f, 0.0f, 0.333f, 0.469f, 1.0f, -0.779f, 0.0f, 0.329f, 0.412f, 1.0f, -0.772f, 0.0f, 0.325f, 0.351f, 1.0f, -0.766f, 0.0f, 0.321f, 0.3f, 1.0f,
+	-0.757f, 0.0f, 0.317f, 0.219f, 1.0f,
+};
+
+static const float data29[205 * GP_PRIM_DATABUF_SIZE] = {
+	0.816f, 0.0f, 0.326f, 0.285f, 1.0f, 0.819f, 0.0f, 0.328f, 0.287f, 1.0f, 0.821f, 0.0f, 0.33f, 0.29f, 1.0f, 0.823f, 0.0f, 0.331f, 0.295f, 1.0f,
+	0.825f, 0.0f, 0.333f, 0.304f, 1.0f, 0.828f, 0.0f, 0.335f, 0.315f, 1.0f, 0.83f, 0.0f, 0.337f, 0.328f, 1.0f, 0.833f, 0.0f, 0.339f, 0.341f, 1.0f,
+	0.836f, 0.0f, 0.341f, 0.355f, 1.0f, 0.839f, 0.0f, 0.343f, 0.368f, 1.0f, 0.842f, 0.0f, 0.345f, 0.38f, 1.0f, 0.845f, 0.0f, 0.347f, 0.392f, 1.0f,
+	0.848f, 0.0f, 0.349f, 0.402f, 1.0f, 0.851f, 0.0f, 0.351f, 0.412f, 1.0f, 0.854f, 0.0f, 0.352f, 0.421f, 1.0f, 0.857f, 0.0f, 0.354f, 0.429f, 1.0f,
+	0.861f, 0.0f, 0.356f, 0.437f, 1.0f, 0.865f, 0.0f, 0.357f, 0.444f, 1.0f, 0.869f, 0.0f, 0.359f, 0.452f, 1.0f, 0.872f, 0.0f, 0.36f, 0.46f, 1.0f,
+	0.876f, 0.0f, 0.361f, 0.47f, 1.0f, 0.881f, 0.0f, 0.363f, 0.481f, 1.0f, 0.885f, 0.0f, 0.364f, 0.491f, 1.0f, 0.889f, 0.0f, 0.365f, 0.501f, 1.0f,
+	0.893f, 0.0f, 0.366f, 0.511f, 1.0f, 0.898f, 0.0f, 0.367f, 0.52f, 1.0f, 0.902f, 0.0f, 0.368f, 0.528f, 1.0f, 0.906f, 0.0f, 0.37f, 0.535f, 1.0f,
+	0.911f, 0.0f, 0.371f, 0.542f, 1.0f, 0.915f, 0.0f, 0.372f, 0.548f, 1.0f, 0.92f, 0.0f, 0.373f, 0.554f, 1.0f, 0.924f, 0.0f, 0.374f, 0.559f, 1.0f,
+	0.929f, 0.0f, 0.375f, 0.564f, 1.0f, 0.933f, 0.0f, 0.376f, 0.567f, 1.0f, 0.938f, 0.0f, 0.377f, 0.57f, 1.0f, 0.943f, 0.0f, 0.378f, 0.572f, 1.0f,
+	0.947f, 0.0f, 0.378f, 0.574f, 1.0f, 0.952f, 0.0f, 0.379f, 0.576f, 1.0f, 0.956f, 0.0f, 0.38f, 0.577f, 1.0f, 0.961f, 0.0f, 0.38f, 0.579f, 1.0f,
+	0.966f, 0.0f, 0.381f, 0.581f, 1.0f, 0.971f, 0.0f, 0.381f, 0.585f, 1.0f, 0.975f, 0.0f, 0.382f, 0.588f, 1.0f, 0.98f, 0.0f, 0.382f, 0.591f, 1.0f,
+	0.985f, 0.0f, 0.382f, 0.595f, 1.0f, 0.989f, 0.0f, 0.382f, 0.597f, 1.0f, 0.994f, 0.0f, 0.382f, 0.6f, 1.0f, 0.999f, 0.0f, 0.382f, 0.603f, 1.0f,
+	1.003f, 0.0f, 0.382f, 0.605f, 1.0f, 1.008f, 0.0f, 0.381f, 0.607f, 1.0f, 1.013f, 0.0f, 0.381f, 0.61f, 1.0f, 1.017f, 0.0f, 0.381f, 0.611f, 1.0f,
+	1.021f, 0.0f, 0.381f, 0.613f, 1.0f, 1.025f, 0.0f, 0.38f, 0.613f, 1.0f, 1.029f, 0.0f, 0.38f, 0.614f, 1.0f, 1.033f, 0.0f, 0.379f, 0.614f, 1.0f,
+	1.037f, 0.0f, 0.379f, 0.614f, 1.0f, 1.041f, 0.0f, 0.378f, 0.614f, 1.0f, 1.044f, 0.0f, 0.378f, 0.614f, 1.0f, 1.048f, 0.0f, 0.377f, 0.614f, 1.0f,
+	1.051f, 0.0f, 0.376f, 0.613f, 1.0f, 1.054f, 0.0f, 0.375f, 0.612f, 1.0f, 1.057f, 0.0f, 0.374f, 0.611f, 1.0f, 1.06f, 0.0f, 0.373f, 0.61f, 1.0f,
+	1.063f, 0.0f, 0.372f, 0.609f, 1.0f, 1.066f, 0.0f, 0.371f, 0.609f, 1.0f, 1.068f, 0.0f, 0.37f, 0.608f, 1.0f, 1.071f, 0.0f, 0.368f, 0.608f, 1.0f,
+	1.073f, 0.0f, 0.367f, 0.608f, 1.0f, 1.076f, 0.0f, 0.365f, 0.608f, 1.0f, 1.078f, 0.0f, 0.364f, 0.607f, 1.0f, 1.081f, 0.0f, 0.362f, 0.607f, 1.0f,
+	1.083f, 0.0f, 0.36f, 0.607f, 1.0f, 1.085f, 0.0f, 0.358f, 0.606f, 1.0f, 1.087f, 0.0f, 0.356f, 0.606f, 1.0f, 1.09f, 0.0f, 0.354f, 0.606f, 1.0f,
+	1.092f, 0.0f, 0.352f, 0.606f, 1.0f, 1.094f, 0.0f, 0.35f, 0.606f, 1.0f, 1.096f, 0.0f, 0.348f, 0.606f, 1.0f, 1.097f, 0.0f, 0.346f, 0.606f, 1.0f,
+	1.099f, 0.0f, 0.344f, 0.606f, 1.0f, 1.101f, 0.0f, 0.341f, 0.606f, 1.0f, 1.103f, 0.0f, 0.339f, 0.606f, 1.0f, 1.104f, 0.0f, 0.337f, 0.607f, 1.0f,
+	1.106f, 0.0f, 0.335f, 0.607f, 1.0f, 1.108f, 0.0f, 0.332f, 0.607f, 1.0f, 1.109f, 0.0f, 0.33f, 0.608f, 1.0f, 1.111f, 0.0f, 0.327f, 0.608f, 1.0f,
+	1.113f, 0.0f, 0.324f, 0.608f, 1.0f, 1.114f, 0.0f, 0.322f, 0.609f, 1.0f, 1.116f, 0.0f, 0.319f, 0.609f, 1.0f, 1.117f, 0.0f, 0.316f, 0.609f, 1.0f,
+	1.118f, 0.0f, 0.313f, 0.609f, 1.0f, 1.12f, 0.0f, 0.31f, 0.609f, 1.0f, 1.121f, 0.0f, 0.307f, 0.609f, 1.0f, 1.123f, 0.0f, 0.304f, 0.608f, 1.0f,
+	1.124f, 0.0f, 0.301f, 0.608f, 1.0f, 1.125f, 0.0f, 0.297f, 0.607f, 1.0f, 1.126f, 0.0f, 0.294f, 0.606f, 1.0f, 1.127f, 0.0f, 0.29f, 0.605f, 1.0f,
+	1.129f, 0.0f, 0.287f, 0.603f, 1.0f, 1.13f, 0.0f, 0.283f, 0.601f, 1.0f, 1.131f, 0.0f, 0.279f, 0.599f, 1.0f, 1.132f, 0.0f, 0.276f, 0.597f, 1.0f,
+	1.132f, 0.0f, 0.272f, 0.595f, 1.0f, 1.133f, 0.0f, 0.268f, 0.593f, 1.0f, 1.134f, 0.0f, 0.264f, 0.592f, 1.0f, 1.135f, 0.0f, 0.26f, 0.591f, 1.0f,
+	1.135f, 0.0f, 0.256f, 0.59f, 1.0f, 1.136f, 0.0f, 0.252f, 0.589f, 1.0f, 1.136f, 0.0f, 0.248f, 0.588f, 1.0f, 1.137f, 0.0f, 0.244f, 0.587f, 1.0f,
+	1.137f, 0.0f, 0.24f, 0.586f, 1.0f, 1.138f, 0.0f, 0.236f, 0.585f, 1.0f, 1.138f, 0.0f, 0.232f, 0.584f, 1.0f, 1.138f, 0.0f, 0.228f, 0.582f, 1.0f,
+	1.138f, 0.0f, 0.224f, 0.581f, 1.0f, 1.138f, 0.0f, 0.22f, 0.579f, 1.0f, 1.138f, 0.0f, 0.216f, 0.578f, 1.0f, 1.138f, 0.0f, 0.212f, 0.576f, 1.0f,
+	1.138f, 0.0f, 0.208f, 0.575f, 1.0f, 1.138f, 0.0f, 0.204f, 0.573f, 1.0f, 1.137f, 0.0f, 0.2f, 0.572f, 1.0f, 1.137f, 0.0f, 0.196f, 0.571f, 1.0f,
+	1.137f, 0.0f, 0.192f, 0.569f, 1.0f, 1.136f, 0.0f, 0.188f, 0.568f, 1.0f, 1.136f, 0.0f, 0.184f, 0.567f, 1.0f, 1.135f, 0.0f, 0.18f, 0.566f, 1.0f,
+	1.134f, 0.0f, 0.176f, 0.565f, 1.0f, 1.133f, 0.0f, 0.172f, 0.563f, 1.0f, 1.132f, 0.0f, 0.168f, 0.561f, 1.0f, 1.131f, 0.0f, 0.164f, 0.559f, 1.0f,
+	1.13f, 0.0f, 0.16f, 0.556f, 1.0f, 1.129f, 0.0f, 0.156f, 0.552f, 1.0f, 1.128f, 0.0f, 0.152f, 0.548f, 1.0f, 1.127f, 0.0f, 0.148f, 0.543f, 1.0f,
+	1.126f, 0.0f, 0.144f, 0.537f, 1.0f, 1.124f, 0.0f, 0.14f, 0.53f, 1.0f, 1.123f, 0.0f, 0.136f, 0.522f, 1.0f, 1.122f, 0.0f, 0.132f, 0.514f, 1.0f,
+	1.12f, 0.0f, 0.128f, 0.505f, 1.0f, 1.118f, 0.0f, 0.123f, 0.495f, 1.0f, 1.117f, 0.0f, 0.119f, 0.486f, 1.0f, 1.115f, 0.0f, 0.115f, 0.476f, 1.0f,
+	1.113f, 0.0f, 0.111f, 0.466f, 1.0f, 1.111f, 0.0f, 0.107f, 0.456f, 1.0f, 1.11f, 0.0f, 0.102f, 0.446f, 1.0f, 1.108f, 0.0f, 0.098f, 0.436f, 1.0f,
+	1.105f, 0.0f, 0.094f, 0.425f, 1.0f, 1.103f, 0.0f, 0.09f, 0.414f, 1.0f, 1.101f, 0.0f, 0.085f, 0.402f, 1.0f, 1.099f, 0.0f, 0.081f, 0.389f, 1.0f,
+	1.096f, 0.0f, 0.077f, 0.377f, 1.0f, 1.094f, 0.0f, 0.072f, 0.364f, 1.0f, 1.091f, 0.0f, 0.068f, 0.351f, 1.0f, 1.088f, 0.0f, 0.063f, 0.338f, 1.0f,
+	1.085f, 0.0f, 0.059f, 0.325f, 1.0f, 1.082f, 0.0f, 0.054f, 0.313f, 1.0f, 1.079f, 0.0f, 0.05f, 0.301f, 1.0f, 1.075f, 0.0f, 0.045f, 0.29f, 1.0f,
+	1.071f, 0.0f, 0.04f, 0.281f, 1.0f, 1.067f, 0.0f, 0.035f, 0.272f, 1.0f, 1.063f, 0.0f, 0.031f, 0.266f, 1.0f, 1.059f, 0.0f, 0.026f, 0.261f, 1.0f,
+	1.054f, 0.0f, 0.021f, 0.258f, 1.0f, 1.049f, 0.0f, 0.016f, 0.257f, 1.0f, 1.043f, 0.0f, 0.011f, 0.259f, 1.0f, 1.037f, 0.0f, 0.006f, 0.264f, 1.0f,
+	1.031f, 0.0f, 0.0f, 0.272f, 1.0f, 1.025f, 0.0f, -0.005f, 0.283f, 1.0f, 1.018f, 0.0f, -0.01f, 0.296f, 1.0f, 1.011f, 0.0f, -0.015f, 0.313f, 1.0f,
+	1.003f, 0.0f, -0.021f, 0.33f, 1.0f, 0.996f, 0.0f, -0.026f, 0.348f, 1.0f, 0.988f, 0.0f, -0.032f, 0.365f, 1.0f, 0.979f, 0.0f, -0.038f, 0.379f, 1.0f,
+	0.971f, 0.0f, -0.044f, 0.389f, 1.0f, 0.962f, 0.0f, -0.05f, 0.394f, 1.0f, 0.953f, 0.0f, -0.057f, 0.392f, 1.0f, 0.944f, 0.0f, -0.063f, 0.384f, 1.0f,
+	0.934f, 0.0f, -0.069f, 0.368f, 1.0f, 0.924f, 0.0f, -0.075f, 0.347f, 1.0f, 0.914f, 0.0f, -0.081f, 0.32f, 1.0f, 0.903f, 0.0f, -0.087f, 0.289f, 1.0f,
+	0.893f, 0.0f, -0.092f, 0.256f, 1.0f, 0.882f, 0.0f, -0.098f, 0.223f, 1.0f, 0.871f, 0.0f, -0.103f, 0.191f, 1.0f, 0.86f, 0.0f, -0.108f, 0.162f, 1.0f,
+	0.849f, 0.0f, -0.112f, 0.136f, 1.0f, 0.838f, 0.0f, -0.117f, 0.112f, 1.0f, 0.827f, 0.0f, -0.121f, 0.091f, 1.0f, 0.815f, 0.0f, -0.125f, 0.074f, 1.0f,
+	0.804f, 0.0f, -0.128f, 0.059f, 1.0f, 0.793f, 0.0f, -0.132f, 0.046f, 1.0f, 0.782f, 0.0f, -0.135f, 0.036f, 1.0f, 0.771f, 0.0f, -0.138f, 0.028f, 1.0f,
+	0.76f, 0.0f, -0.141f, 0.021f, 1.0f, 0.749f, 0.0f, -0.144f, 0.016f, 1.0f, 0.738f, 0.0f, -0.147f, 0.012f, 1.0f, 0.728f, 0.0f, -0.149f, 0.009f, 1.0f,
+	0.718f, 0.0f, -0.152f, 0.006f, 1.0f, 0.708f, 0.0f, -0.154f, 0.004f, 1.0f, 0.699f, 0.0f, -0.157f, 0.003f, 1.0f, 0.691f, 0.0f, -0.159f, 0.002f, 1.0f,
+	0.68f, 0.0f, -0.162f, 0.0f, 1.0f,
+};
+
+static const float data30[33 * GP_PRIM_DATABUF_SIZE] = {
+	-1.02f, 0.0f, 0.179f, 0.21f, 1.0f, -1.014f, 0.0f, 0.182f, 0.301f, 1.0f, -1.01f, 0.0f, 0.184f, 0.36f, 1.0f, -1.004f, 0.0f, 0.186f, 0.426f, 1.0f,
+	-0.999f, 0.0f, 0.188f, 0.479f, 1.0f, -0.993f, 0.0f, 0.19f, 0.519f, 1.0f, -0.987f, 0.0f, 0.191f, 0.545f, 1.0f, -0.981f, 0.0f, 0.192f, 0.562f, 1.0f,
+	-0.975f, 0.0f, 0.193f, 0.575f, 1.0f, -0.968f, 0.0f, 0.193f, 0.582f, 1.0f, -0.961f, 0.0f, 0.193f, 0.587f, 1.0f, -0.954f, 0.0f, 0.191f, 0.592f, 1.0f,
+	-0.946f, 0.0f, 0.19f, 0.597f, 1.0f, -0.938f, 0.0f, 0.187f, 0.6f, 1.0f, -0.93f, 0.0f, 0.183f, 0.603f, 1.0f, -0.922f, 0.0f, 0.178f, 0.606f, 1.0f,
+	-0.913f, 0.0f, 0.173f, 0.608f, 1.0f, -0.905f, 0.0f, 0.168f, 0.61f, 1.0f, -0.898f, 0.0f, 0.162f, 0.612f, 1.0f, -0.89f, 0.0f, 0.156f, 0.613f, 1.0f,
+	-0.883f, 0.0f, 0.15f, 0.612f, 1.0f, -0.877f, 0.0f, 0.143f, 0.608f, 1.0f, -0.871f, 0.0f, 0.137f, 0.602f, 1.0f, -0.865f, 0.0f, 0.131f, 0.593f, 1.0f,
+	-0.86f, 0.0f, 0.125f, 0.577f, 1.0f, -0.855f, 0.0f, 0.12f, 0.554f, 1.0f, -0.85f, 0.0f, 0.114f, 0.524f, 1.0f, -0.846f, 0.0f, 0.109f, 0.487f, 1.0f,
+	-0.842f, 0.0f, 0.104f, 0.443f, 1.0f, -0.838f, 0.0f, 0.1f, 0.394f, 1.0f, -0.835f, 0.0f, 0.095f, 0.339f, 1.0f, -0.832f, 0.0f, 0.091f, 0.295f, 1.0f,
+	-0.828f, 0.0f, 0.086f, 0.227f, 1.0f,
+};
+
+static const float data31[37 * GP_PRIM_DATABUF_SIZE] = {
+	0.777f, 0.0f, 0.096f, 0.278f, 1.0f, 0.779f, 0.0f, 0.1f, 0.307f, 1.0f, 0.781f, 0.0f, 0.103f, 0.326f, 1.0f, 0.782f, 0.0f, 0.106f, 0.349f, 1.0f,
+	0.784f, 0.0f, 0.109f, 0.372f, 1.0f, 0.786f, 0.0f, 0.112f, 0.395f, 1.0f, 0.789f, 0.0f, 0.116f, 0.418f, 1.0f, 0.791f, 0.0f, 0.119f, 0.44f, 1.0f,
+	0.794f, 0.0f, 0.123f, 0.462f, 1.0f, 0.798f, 0.0f, 0.127f, 0.484f, 1.0f, 0.801f, 0.0f, 0.13f, 0.504f, 1.0f, 0.806f, 0.0f, 0.134f, 0.522f, 1.0f,
+	0.81f, 0.0f, 0.138f, 0.54f, 1.0f, 0.815f, 0.0f, 0.142f, 0.556f, 1.0f, 0.82f, 0.0f, 0.146f, 0.571f, 1.0f, 0.826f, 0.0f, 0.15f, 0.584f, 1.0f,
+	0.832f, 0.0f, 0.154f, 0.596f, 1.0f, 0.839f, 0.0f, 0.159f, 0.607f, 1.0f, 0.846f, 0.0f, 0.163f, 0.616f, 1.0f, 0.854f, 0.0f, 0.166f, 0.623f, 1.0f,
+	0.862f, 0.0f, 0.17f, 0.628f, 1.0f, 0.87f, 0.0f, 0.174f, 0.632f, 1.0f, 0.878f, 0.0f, 0.177f, 0.632f, 1.0f, 0.887f, 0.0f, 0.18f, 0.63f, 1.0f,
+	0.895f, 0.0f, 0.183f, 0.623f, 1.0f, 0.903f, 0.0f, 0.186f, 0.611f, 1.0f, 0.912f, 0.0f, 0.188f, 0.592f, 1.0f, 0.92f, 0.0f, 0.19f, 0.567f, 1.0f,
+	0.928f, 0.0f, 0.192f, 0.533f, 1.0f, 0.935f, 0.0f, 0.193f, 0.492f, 1.0f, 0.943f, 0.0f, 0.194f, 0.442f, 1.0f, 0.95f, 0.0f, 0.196f, 0.385f, 1.0f,
+	0.957f, 0.0f, 0.197f, 0.321f, 1.0f, 0.963f, 0.0f, 0.197f, 0.253f, 1.0f, 0.97f, 0.0f, 0.198f, 0.175f, 1.0f, 0.975f, 0.0f, 0.199f, 0.107f, 1.0f,
+	0.983f, 0.0f, 0.199f, 0.0f, 1.0f,
+};
+
+static const float data32[201 * GP_PRIM_DATABUF_SIZE] = {
+	-0.437f, 0.0f, 0.508f, 0.0f, 1.0f, -0.435f, 0.0f, 0.51f, 0.0f, 1.0f, -0.434f, 0.0f, 0.511f, 0.0f, 1.0f, -0.432f, 0.0f, 0.512f, 0.0f, 1.0f,
+	-0.43f, 0.0f, 0.513f, 0.0f, 1.0f, -0.428f, 0.0f, 0.514f, 0.001f, 1.0f, -0.426f, 0.0f, 0.515f, 0.002f, 1.0f, -0.424f, 0.0f, 0.517f, 0.004f, 1.0f,
+	-0.422f, 0.0f, 0.518f, 0.007f, 1.0f, -0.42f, 0.0f, 0.519f, 0.012f, 1.0f, -0.418f, 0.0f, 0.521f, 0.018f, 1.0f, -0.416f, 0.0f, 0.522f, 0.025f, 1.0f,
+	-0.414f, 0.0f, 0.523f, 0.034f, 1.0f, -0.411f, 0.0f, 0.525f, 0.043f, 1.0f, -0.409f, 0.0f, 0.526f, 0.053f, 1.0f, -0.407f, 0.0f, 0.528f, 0.063f, 1.0f,
+	-0.404f, 0.0f, 0.529f, 0.073f, 1.0f, -0.402f, 0.0f, 0.531f, 0.083f, 1.0f, -0.399f, 0.0f, 0.532f, 0.092f, 1.0f, -0.396f, 0.0f, 0.534f, 0.101f, 1.0f,
+	-0.394f, 0.0f, 0.535f, 0.11f, 1.0f, -0.391f, 0.0f, 0.536f, 0.118f, 1.0f, -0.388f, 0.0f, 0.538f, 0.126f, 1.0f, -0.386f, 0.0f, 0.539f, 0.133f, 1.0f,
+	-0.383f, 0.0f, 0.54f, 0.14f, 1.0f, -0.38f, 0.0f, 0.542f, 0.147f, 1.0f, -0.377f, 0.0f, 0.543f, 0.153f, 1.0f, -0.374f, 0.0f, 0.544f, 0.159f, 1.0f,
+	-0.37f, 0.0f, 0.545f, 0.166f, 1.0f, -0.367f, 0.0f, 0.546f, 0.172f, 1.0f, -0.364f, 0.0f, 0.547f, 0.179f, 1.0f, -0.361f, 0.0f, 0.548f, 0.186f, 1.0f,
+	-0.357f, 0.0f, 0.549f, 0.193f, 1.0f, -0.354f, 0.0f, 0.55f, 0.202f, 1.0f, -0.35f, 0.0f, 0.551f, 0.211f, 1.0f, -0.347f, 0.0f, 0.552f, 0.221f, 1.0f,
+	-0.343f, 0.0f, 0.552f, 0.233f, 1.0f, -0.339f, 0.0f, 0.553f, 0.245f, 1.0f, -0.336f, 0.0f, 0.553f, 0.258f, 1.0f, -0.332f, 0.0f, 0.554f, 0.272f, 1.0f,
+	-0.328f, 0.0f, 0.554f, 0.286f, 1.0f, -0.324f, 0.0f, 0.554f, 0.301f, 1.0f, -0.321f, 0.0f, 0.555f, 0.317f, 1.0f, -0.317f, 0.0f, 0.555f, 0.332f, 1.0f,
+	-0.313f, 0.0f, 0.555f, 0.348f, 1.0f, -0.309f, 0.0f, 0.555f, 0.364f, 1.0f, -0.305f, 0.0f, 0.555f, 0.38f, 1.0f, -0.302f, 0.0f, 0.555f, 0.396f, 1.0f,
+	-0.298f, 0.0f, 0.555f, 0.411f, 1.0f, -0.294f, 0.0f, 0.555f, 0.426f, 1.0f, -0.29f, 0.0f, 0.554f, 0.44f, 1.0f, -0.287f, 0.0f, 0.554f, 0.454f, 1.0f,
+	-0.283f, 0.0f, 0.554f, 0.467f, 1.0f, -0.28f, 0.0f, 0.553f, 0.479f, 1.0f, -0.276f, 0.0f, 0.553f, 0.49f, 1.0f, -0.273f, 0.0f, 0.552f, 0.5f, 1.0f,
+	-0.269f, 0.0f, 0.552f, 0.51f, 1.0f, -0.266f, 0.0f, 0.551f, 0.519f, 1.0f, -0.263f, 0.0f, 0.55f, 0.527f, 1.0f, -0.26f, 0.0f, 0.549f, 0.534f, 1.0f,
+	-0.256f, 0.0f, 0.549f, 0.541f, 1.0f, -0.253f, 0.0f, 0.548f, 0.547f, 1.0f, -0.25f, 0.0f, 0.547f, 0.552f, 1.0f, -0.247f, 0.0f, 0.546f, 0.557f, 1.0f,
+	-0.244f, 0.0f, 0.545f, 0.561f, 1.0f, -0.241f, 0.0f, 0.544f, 0.564f, 1.0f, -0.238f, 0.0f, 0.543f, 0.567f, 1.0f, -0.235f, 0.0f, 0.542f, 0.57f, 1.0f,
+	-0.233f, 0.0f, 0.541f, 0.572f, 1.0f, -0.23f, 0.0f, 0.54f, 0.574f, 1.0f, -0.227f, 0.0f, 0.539f, 0.575f, 1.0f, -0.224f, 0.0f, 0.538f, 0.576f, 1.0f,
+	-0.221f, 0.0f, 0.537f, 0.577f, 1.0f, -0.219f, 0.0f, 0.535f, 0.578f, 1.0f, -0.216f, 0.0f, 0.534f, 0.578f, 1.0f, -0.213f, 0.0f, 0.533f, 0.579f, 1.0f,
+	-0.211f, 0.0f, 0.532f, 0.579f, 1.0f, -0.208f, 0.0f, 0.53f, 0.579f, 1.0f, -0.206f, 0.0f, 0.529f, 0.578f, 1.0f, -0.203f, 0.0f, 0.528f, 0.578f, 1.0f,
+	-0.2f, 0.0f, 0.526f, 0.577f, 1.0f, -0.198f, 0.0f, 0.525f, 0.576f, 1.0f, -0.195f, 0.0f, 0.523f, 0.575f, 1.0f, -0.193f, 0.0f, 0.522f, 0.574f, 1.0f,
+	-0.19f, 0.0f, 0.52f, 0.572f, 1.0f, -0.188f, 0.0f, 0.518f, 0.571f, 1.0f, -0.185f, 0.0f, 0.517f, 0.569f, 1.0f, -0.182f, 0.0f, 0.515f, 0.568f, 1.0f,
+	-0.18f, 0.0f, 0.513f, 0.567f, 1.0f, -0.177f, 0.0f, 0.512f, 0.565f, 1.0f, -0.174f, 0.0f, 0.51f, 0.564f, 1.0f, -0.172f, 0.0f, 0.508f, 0.562f, 1.0f,
+	-0.169f, 0.0f, 0.506f, 0.56f, 1.0f, -0.166f, 0.0f, 0.504f, 0.559f, 1.0f, -0.164f, 0.0f, 0.502f, 0.556f, 1.0f, -0.161f, 0.0f, 0.501f, 0.554f, 1.0f,
+	-0.158f, 0.0f, 0.499f, 0.552f, 1.0f, -0.155f, 0.0f, 0.497f, 0.55f, 1.0f, -0.153f, 0.0f, 0.495f, 0.547f, 1.0f, -0.15f, 0.0f, 0.493f, 0.545f, 1.0f,
+	-0.147f, 0.0f, 0.491f, 0.543f, 1.0f, -0.144f, 0.0f, 0.489f, 0.54f, 1.0f, -0.142f, 0.0f, 0.487f, 0.538f, 1.0f, -0.139f, 0.0f, 0.485f, 0.536f, 1.0f,
+	-0.136f, 0.0f, 0.483f, 0.533f, 1.0f, -0.133f, 0.0f, 0.481f, 0.53f, 1.0f, -0.13f, 0.0f, 0.479f, 0.527f, 1.0f, -0.127f, 0.0f, 0.477f, 0.524f, 1.0f,
+	-0.124f, 0.0f, 0.475f, 0.521f, 1.0f, -0.121f, 0.0f, 0.473f, 0.519f, 1.0f, -0.118f, 0.0f, 0.471f, 0.516f, 1.0f, -0.115f, 0.0f, 0.469f, 0.514f, 1.0f,
+	-0.112f, 0.0f, 0.467f, 0.511f, 1.0f, -0.109f, 0.0f, 0.465f, 0.509f, 1.0f, -0.106f, 0.0f, 0.463f, 0.506f, 1.0f, -0.103f, 0.0f, 0.461f, 0.503f, 1.0f,
+	-0.099f, 0.0f, 0.458f, 0.501f, 1.0f, -0.096f, 0.0f, 0.456f, 0.5f, 1.0f, -0.093f, 0.0f, 0.454f, 0.498f, 1.0f, -0.09f, 0.0f, 0.452f, 0.497f, 1.0f,
+	-0.086f, 0.0f, 0.45f, 0.496f, 1.0f, -0.083f, 0.0f, 0.448f, 0.496f, 1.0f, -0.079f, 0.0f, 0.446f, 0.495f, 1.0f, -0.076f, 0.0f, 0.444f, 0.495f, 1.0f,
+	-0.072f, 0.0f, 0.442f, 0.494f, 1.0f, -0.069f, 0.0f, 0.44f, 0.494f, 1.0f, -0.065f, 0.0f, 0.438f, 0.494f, 1.0f, -0.062f, 0.0f, 0.436f, 0.494f, 1.0f,
+	-0.058f, 0.0f, 0.435f, 0.494f, 1.0f, -0.054f, 0.0f, 0.433f, 0.494f, 1.0f, -0.05f, 0.0f, 0.431f, 0.494f, 1.0f, -0.046f, 0.0f, 0.43f, 0.494f, 1.0f,
+	-0.042f, 0.0f, 0.428f, 0.494f, 1.0f, -0.038f, 0.0f, 0.427f, 0.494f, 1.0f, -0.033f, 0.0f, 0.426f, 0.494f, 1.0f, -0.029f, 0.0f, 0.425f, 0.494f, 1.0f,
+	-0.025f, 0.0f, 0.424f, 0.494f, 1.0f, -0.02f, 0.0f, 0.423f, 0.494f, 1.0f, -0.015f, 0.0f, 0.422f, 0.494f, 1.0f, -0.011f, 0.0f, 0.422f, 0.494f, 1.0f,
+	-0.006f, 0.0f, 0.421f, 0.494f, 1.0f, -0.001f, 0.0f, 0.421f, 0.495f, 1.0f, 0.004f, 0.0f, 0.421f, 0.495f, 1.0f, 0.009f, 0.0f, 0.421f, 0.495f, 1.0f,
+	0.014f, 0.0f, 0.422f, 0.495f, 1.0f, 0.019f, 0.0f, 0.422f, 0.495f, 1.0f, 0.024f, 0.0f, 0.423f, 0.495f, 1.0f, 0.029f, 0.0f, 0.424f, 0.495f, 1.0f,
+	0.034f, 0.0f, 0.426f, 0.495f, 1.0f, 0.039f, 0.0f, 0.427f, 0.495f, 1.0f, 0.044f, 0.0f, 0.429f, 0.496f, 1.0f, 0.049f, 0.0f, 0.43f, 0.497f, 1.0f,
+	0.054f, 0.0f, 0.432f, 0.498f, 1.0f, 0.059f, 0.0f, 0.435f, 0.5f, 1.0f, 0.064f, 0.0f, 0.438f, 0.502f, 1.0f, 0.069f, 0.0f, 0.44f, 0.506f, 1.0f,
+	0.074f, 0.0f, 0.443f, 0.51f, 1.0f, 0.08f, 0.0f, 0.446f, 0.516f, 1.0f, 0.085f, 0.0f, 0.45f, 0.522f, 1.0f, 0.09f, 0.0f, 0.453f, 0.528f, 1.0f,
+	0.095f, 0.0f, 0.456f, 0.533f, 1.0f, 0.101f, 0.0f, 0.46f, 0.537f, 1.0f, 0.107f, 0.0f, 0.463f, 0.539f, 1.0f, 0.112f, 0.0f, 0.467f, 0.542f, 1.0f,
+	0.118f, 0.0f, 0.471f, 0.543f, 1.0f, 0.124f, 0.0f, 0.475f, 0.545f, 1.0f, 0.13f, 0.0f, 0.478f, 0.546f, 1.0f, 0.137f, 0.0f, 0.482f, 0.546f, 1.0f,
+	0.143f, 0.0f, 0.486f, 0.547f, 1.0f, 0.149f, 0.0f, 0.49f, 0.546f, 1.0f, 0.156f, 0.0f, 0.493f, 0.544f, 1.0f, 0.163f, 0.0f, 0.497f, 0.54f, 1.0f,
+	0.17f, 0.0f, 0.5f, 0.533f, 1.0f, 0.176f, 0.0f, 0.503f, 0.525f, 1.0f, 0.183f, 0.0f, 0.507f, 0.515f, 1.0f, 0.191f, 0.0f, 0.509f, 0.503f, 1.0f,
+	0.198f, 0.0f, 0.512f, 0.491f, 1.0f, 0.205f, 0.0f, 0.515f, 0.477f, 1.0f, 0.214f, 0.0f, 0.518f, 0.462f, 1.0f, 0.222f, 0.0f, 0.521f, 0.445f, 1.0f,
+	0.23f, 0.0f, 0.524f, 0.427f, 1.0f, 0.238f, 0.0f, 0.527f, 0.409f, 1.0f, 0.245f, 0.0f, 0.529f, 0.388f, 1.0f, 0.254f, 0.0f, 0.531f, 0.366f, 1.0f,
+	0.262f, 0.0f, 0.532f, 0.343f, 1.0f, 0.272f, 0.0f, 0.533f, 0.317f, 1.0f, 0.282f, 0.0f, 0.534f, 0.289f, 1.0f, 0.292f, 0.0f, 0.535f, 0.258f, 1.0f,
+	0.301f, 0.0f, 0.535f, 0.224f, 1.0f, 0.311f, 0.0f, 0.536f, 0.189f, 1.0f, 0.32f, 0.0f, 0.536f, 0.153f, 1.0f, 0.328f, 0.0f, 0.536f, 0.117f, 1.0f,
+	0.338f, 0.0f, 0.537f, 0.084f, 1.0f, 0.346f, 0.0f, 0.537f, 0.057f, 1.0f, 0.353f, 0.0f, 0.536f, 0.037f, 1.0f, 0.361f, 0.0f, 0.536f, 0.022f, 1.0f,
+	0.37f, 0.0f, 0.537f, 0.013f, 1.0f, 0.376f, 0.0f, 0.536f, 0.007f, 1.0f, 0.384f, 0.0f, 0.536f, 0.004f, 1.0f, 0.39f, 0.0f, 0.536f, 0.002f, 1.0f,
+	0.399f, 0.0f, 0.535f, 0.0f, 1.0f,
+};
+
+static const float data33[69 * GP_PRIM_DATABUF_SIZE] = {
+	-0.308f, 0.0f, 0.151f, 0.363f, 1.0f, -0.31f, 0.0f, 0.15f, 0.377f, 1.0f, -0.311f, 0.0f, 0.149f, 0.386f, 1.0f, -0.313f, 0.0f, 0.149f, 0.397f, 1.0f,
+	-0.314f, 0.0f, 0.149f, 0.408f, 1.0f, -0.316f, 0.0f, 0.148f, 0.42f, 1.0f, -0.318f, 0.0f, 0.148f, 0.431f, 1.0f, -0.32f, 0.0f, 0.148f, 0.443f, 1.0f,
+	-0.322f, 0.0f, 0.148f, 0.455f, 1.0f, -0.325f, 0.0f, 0.149f, 0.467f, 1.0f, -0.327f, 0.0f, 0.149f, 0.478f, 1.0f, -0.33f, 0.0f, 0.151f, 0.49f, 1.0f,
+	-0.333f, 0.0f, 0.152f, 0.501f, 1.0f, -0.336f, 0.0f, 0.154f, 0.512f, 1.0f, -0.34f, 0.0f, 0.157f, 0.522f, 1.0f, -0.343f, 0.0f, 0.161f, 0.533f, 1.0f,
+	-0.346f, 0.0f, 0.166f, 0.543f, 1.0f, -0.349f, 0.0f, 0.171f, 0.553f, 1.0f, -0.351f, 0.0f, 0.178f, 0.563f, 1.0f, -0.352f, 0.0f, 0.186f, 0.572f, 1.0f,
+	-0.353f, 0.0f, 0.193f, 0.582f, 1.0f, -0.352f, 0.0f, 0.2f, 0.591f, 1.0f, -0.351f, 0.0f, 0.206f, 0.6f, 1.0f, -0.349f, 0.0f, 0.211f, 0.608f, 1.0f,
+	-0.347f, 0.0f, 0.215f, 0.616f, 1.0f, -0.345f, 0.0f, 0.219f, 0.623f, 1.0f, -0.343f, 0.0f, 0.222f, 0.63f, 1.0f, -0.341f, 0.0f, 0.224f, 0.637f, 1.0f,
+	-0.339f, 0.0f, 0.226f, 0.642f, 1.0f, -0.337f, 0.0f, 0.228f, 0.647f, 1.0f, -0.335f, 0.0f, 0.229f, 0.652f, 1.0f, -0.333f, 0.0f, 0.23f, 0.656f, 1.0f,
+	-0.332f, 0.0f, 0.231f, 0.66f, 1.0f, -0.33f, 0.0f, 0.232f, 0.663f, 1.0f, -0.328f, 0.0f, 0.232f, 0.666f, 1.0f, -0.327f, 0.0f, 0.233f, 0.669f, 1.0f,
+	-0.325f, 0.0f, 0.233f, 0.672f, 1.0f, -0.324f, 0.0f, 0.234f, 0.676f, 1.0f, -0.322f, 0.0f, 0.234f, 0.679f, 1.0f, -0.321f, 0.0f, 0.234f, 0.682f, 1.0f,
+	-0.319f, 0.0f, 0.234f, 0.686f, 1.0f, -0.317f, 0.0f, 0.234f, 0.689f, 1.0f, -0.316f, 0.0f, 0.234f, 0.693f, 1.0f, -0.314f, 0.0f, 0.234f, 0.697f, 1.0f,
+	-0.312f, 0.0f, 0.233f, 0.701f, 1.0f, -0.31f, 0.0f, 0.232f, 0.705f, 1.0f, -0.307f, 0.0f, 0.231f, 0.709f, 1.0f, -0.305f, 0.0f, 0.23f, 0.713f, 1.0f,
+	-0.302f, 0.0f, 0.228f, 0.716f, 1.0f, -0.299f, 0.0f, 0.225f, 0.719f, 1.0f, -0.295f, 0.0f, 0.222f, 0.722f, 1.0f, -0.292f, 0.0f, 0.217f, 0.725f, 1.0f,
+	-0.289f, 0.0f, 0.21f, 0.727f, 1.0f, -0.287f, 0.0f, 0.202f, 0.728f, 1.0f, -0.285f, 0.0f, 0.194f, 0.729f, 1.0f, -0.286f, 0.0f, 0.185f, 0.729f, 1.0f,
+	-0.287f, 0.0f, 0.178f, 0.728f, 1.0f, -0.289f, 0.0f, 0.171f, 0.726f, 1.0f, -0.292f, 0.0f, 0.166f, 0.723f, 1.0f, -0.294f, 0.0f, 0.162f, 0.717f, 1.0f,
+	-0.297f, 0.0f, 0.159f, 0.71f, 1.0f, -0.299f, 0.0f, 0.157f, 0.701f, 1.0f, -0.301f, 0.0f, 0.155f, 0.689f, 1.0f, -0.303f, 0.0f, 0.154f, 0.675f, 1.0f,
+	-0.305f, 0.0f, 0.152f, 0.659f, 1.0f, -0.306f, 0.0f, 0.151f, 0.641f, 1.0f, -0.308f, 0.0f, 0.151f, 0.62f, 1.0f, -0.309f, 0.0f, 0.15f, 0.602f, 1.0f,
+	-0.31f, 0.0f, 0.15f, 0.572f, 1.0f,
+};
+
+static const float data34[57 * GP_PRIM_DATABUF_SIZE] = {
+	0.302f, 0.0f, 0.166f, 0.25f, 1.0f, 0.301f, 0.0f, 0.167f, 0.319f, 1.0f, 0.3f, 0.0f, 0.167f, 0.363f, 1.0f, 0.299f, 0.0f, 0.167f, 0.414f, 1.0f,
+	0.298f, 0.0f, 0.167f, 0.459f, 1.0f, 0.296f, 0.0f, 0.168f, 0.501f, 1.0f, 0.295f, 0.0f, 0.168f, 0.539f, 1.0f, 0.293f, 0.0f, 0.169f, 0.573f, 1.0f,
+	0.291f, 0.0f, 0.17f, 0.603f, 1.0f, 0.289f, 0.0f, 0.171f, 0.629f, 1.0f, 0.286f, 0.0f, 0.173f, 0.652f, 1.0f, 0.283f, 0.0f, 0.176f, 0.672f, 1.0f,
+	0.279f, 0.0f, 0.18f, 0.69f, 1.0f, 0.276f, 0.0f, 0.186f, 0.705f, 1.0f, 0.272f, 0.0f, 0.195f, 0.719f, 1.0f, 0.271f, 0.0f, 0.205f, 0.73f, 1.0f,
+	0.272f, 0.0f, 0.217f, 0.741f, 1.0f, 0.275f, 0.0f, 0.227f, 0.75f, 1.0f, 0.279f, 0.0f, 0.234f, 0.758f, 1.0f, 0.283f, 0.0f, 0.24f, 0.765f, 1.0f,
+	0.287f, 0.0f, 0.243f, 0.771f, 1.0f, 0.291f, 0.0f, 0.245f, 0.776f, 1.0f, 0.294f, 0.0f, 0.247f, 0.781f, 1.0f, 0.296f, 0.0f, 0.248f, 0.785f, 1.0f,
+	0.299f, 0.0f, 0.249f, 0.789f, 1.0f, 0.301f, 0.0f, 0.249f, 0.793f, 1.0f, 0.303f, 0.0f, 0.249f, 0.796f, 1.0f, 0.305f, 0.0f, 0.25f, 0.799f, 1.0f,
+	0.306f, 0.0f, 0.25f, 0.802f, 1.0f, 0.308f, 0.0f, 0.249f, 0.805f, 1.0f, 0.31f, 0.0f, 0.249f, 0.808f, 1.0f, 0.311f, 0.0f, 0.249f, 0.81f, 1.0f,
+	0.313f, 0.0f, 0.249f, 0.813f, 1.0f, 0.314f, 0.0f, 0.248f, 0.816f, 1.0f, 0.316f, 0.0f, 0.248f, 0.819f, 1.0f, 0.317f, 0.0f, 0.247f, 0.822f, 1.0f,
+	0.319f, 0.0f, 0.246f, 0.825f, 1.0f, 0.321f, 0.0f, 0.245f, 0.828f, 1.0f, 0.323f, 0.0f, 0.244f, 0.832f, 1.0f, 0.325f, 0.0f, 0.243f, 0.835f, 1.0f,
+	0.328f, 0.0f, 0.24f, 0.838f, 1.0f, 0.33f, 0.0f, 0.237f, 0.841f, 1.0f, 0.333f, 0.0f, 0.233f, 0.844f, 1.0f, 0.337f, 0.0f, 0.228f, 0.847f, 1.0f,
+	0.339f, 0.0f, 0.219f, 0.849f, 1.0f, 0.341f, 0.0f, 0.209f, 0.852f, 1.0f, 0.34f, 0.0f, 0.197f, 0.854f, 1.0f, 0.336f, 0.0f, 0.186f, 0.856f, 1.0f,
+	0.331f, 0.0f, 0.178f, 0.858f, 1.0f, 0.325f, 0.0f, 0.173f, 0.86f, 1.0f, 0.321f, 0.0f, 0.17f, 0.861f, 1.0f, 0.318f, 0.0f, 0.169f, 0.862f, 1.0f,
+	0.315f, 0.0f, 0.168f, 0.864f, 1.0f, 0.312f, 0.0f, 0.167f, 0.865f, 1.0f, 0.311f, 0.0f, 0.167f, 0.866f, 1.0f, 0.309f, 0.0f, 0.166f, 0.867f, 1.0f,
+	0.308f, 0.0f, 0.166f, 0.868f, 1.0f,
+};
+
+static const float data35[261 * GP_PRIM_DATABUF_SIZE] = {
+	-0.685f, 0.0f, 0.408f, 0.0f, 1.0f, -0.683f, 0.0f, 0.41f, 0.023f, 1.0f, -0.681f, 0.0f, 0.412f, 0.051f, 1.0f, -0.679f, 0.0f, 0.414f, 0.092f, 1.0f,
+	-0.678f, 0.0f, 0.415f, 0.125f, 1.0f, -0.676f, 0.0f, 0.417f, 0.149f, 1.0f, -0.674f, 0.0f, 0.419f, 0.167f, 1.0f, -0.672f, 0.0f, 0.42f, 0.183f, 1.0f,
+	-0.67f, 0.0f, 0.422f, 0.199f, 1.0f, -0.668f, 0.0f, 0.424f, 0.218f, 1.0f, -0.666f, 0.0f, 0.426f, 0.237f, 1.0f, -0.664f, 0.0f, 0.429f, 0.257f, 1.0f,
+	-0.661f, 0.0f, 0.431f, 0.275f, 1.0f, -0.659f, 0.0f, 0.434f, 0.291f, 1.0f, -0.657f, 0.0f, 0.436f, 0.305f, 1.0f, -0.655f, 0.0f, 0.439f, 0.315f, 1.0f,
+	-0.653f, 0.0f, 0.442f, 0.322f, 1.0f, -0.65f, 0.0f, 0.444f, 0.327f, 1.0f, -0.648f, 0.0f, 0.447f, 0.331f, 1.0f, -0.646f, 0.0f, 0.45f, 0.334f, 1.0f,
+	-0.643f, 0.0f, 0.453f, 0.334f, 1.0f, -0.641f, 0.0f, 0.456f, 0.334f, 1.0f, -0.639f, 0.0f, 0.459f, 0.334f, 1.0f, -0.636f, 0.0f, 0.462f, 0.333f, 1.0f,
+	-0.634f, 0.0f, 0.466f, 0.332f, 1.0f, -0.631f, 0.0f, 0.469f, 0.332f, 1.0f, -0.628f, 0.0f, 0.473f, 0.332f, 1.0f, -0.625f, 0.0f, 0.476f, 0.333f, 1.0f,
+	-0.622f, 0.0f, 0.48f, 0.335f, 1.0f, -0.618f, 0.0f, 0.483f, 0.338f, 1.0f, -0.615f, 0.0f, 0.488f, 0.342f, 1.0f, -0.611f, 0.0f, 0.492f, 0.347f, 1.0f,
+	-0.608f, 0.0f, 0.495f, 0.352f, 1.0f, -0.605f, 0.0f, 0.5f, 0.358f, 1.0f, -0.601f, 0.0f, 0.505f, 0.363f, 1.0f, -0.597f, 0.0f, 0.509f, 0.366f, 1.0f,
+	-0.593f, 0.0f, 0.514f, 0.367f, 1.0f, -0.589f, 0.0f, 0.518f, 0.367f, 1.0f, -0.585f, 0.0f, 0.522f, 0.369f, 1.0f, -0.582f, 0.0f, 0.526f, 0.372f, 1.0f,
+	-0.578f, 0.0f, 0.531f, 0.376f, 1.0f, -0.575f, 0.0f, 0.535f, 0.382f, 1.0f, -0.571f, 0.0f, 0.539f, 0.388f, 1.0f, -0.567f, 0.0f, 0.543f, 0.394f, 1.0f,
+	-0.563f, 0.0f, 0.547f, 0.4f, 1.0f, -0.56f, 0.0f, 0.551f, 0.406f, 1.0f, -0.556f, 0.0f, 0.555f, 0.411f, 1.0f, -0.552f, 0.0f, 0.559f, 0.415f, 1.0f,
+	-0.548f, 0.0f, 0.563f, 0.418f, 1.0f, -0.544f, 0.0f, 0.566f, 0.419f, 1.0f, -0.54f, 0.0f, 0.569f, 0.42f, 1.0f, -0.537f, 0.0f, 0.572f, 0.421f, 1.0f,
+	-0.533f, 0.0f, 0.576f, 0.421f, 1.0f, -0.529f, 0.0f, 0.579f, 0.421f, 1.0f, -0.526f, 0.0f, 0.582f, 0.422f, 1.0f, -0.523f, 0.0f, 0.585f, 0.422f, 1.0f,
+	-0.52f, 0.0f, 0.588f, 0.423f, 1.0f, -0.516f, 0.0f, 0.591f, 0.426f, 1.0f, -0.513f, 0.0f, 0.594f, 0.43f, 1.0f, -0.51f, 0.0f, 0.597f, 0.435f, 1.0f,
+	-0.507f, 0.0f, 0.6f, 0.441f, 1.0f, -0.504f, 0.0f, 0.603f, 0.447f, 1.0f, -0.501f, 0.0f, 0.606f, 0.453f, 1.0f, -0.498f, 0.0f, 0.609f, 0.458f, 1.0f,
+	-0.496f, 0.0f, 0.611f, 0.461f, 1.0f, -0.493f, 0.0f, 0.614f, 0.465f, 1.0f, -0.49f, 0.0f, 0.616f, 0.468f, 1.0f, -0.487f, 0.0f, 0.619f, 0.472f, 1.0f,
+	-0.484f, 0.0f, 0.621f, 0.476f, 1.0f, -0.482f, 0.0f, 0.624f, 0.48f, 1.0f, -0.479f, 0.0f, 0.627f, 0.484f, 1.0f, -0.476f, 0.0f, 0.629f, 0.487f, 1.0f,
+	-0.473f, 0.0f, 0.632f, 0.491f, 1.0f, -0.471f, 0.0f, 0.634f, 0.495f, 1.0f, -0.468f, 0.0f, 0.637f, 0.499f, 1.0f, -0.465f, 0.0f, 0.639f, 0.504f, 1.0f,
+	-0.462f, 0.0f, 0.641f, 0.508f, 1.0f, -0.459f, 0.0f, 0.643f, 0.513f, 1.0f, -0.456f, 0.0f, 0.646f, 0.519f, 1.0f, -0.453f, 0.0f, 0.648f, 0.525f, 1.0f,
+	-0.45f, 0.0f, 0.65f, 0.533f, 1.0f, -0.447f, 0.0f, 0.652f, 0.54f, 1.0f, -0.444f, 0.0f, 0.655f, 0.546f, 1.0f, -0.441f, 0.0f, 0.657f, 0.553f, 1.0f,
+	-0.438f, 0.0f, 0.659f, 0.56f, 1.0f, -0.435f, 0.0f, 0.662f, 0.567f, 1.0f, -0.432f, 0.0f, 0.664f, 0.574f, 1.0f, -0.429f, 0.0f, 0.666f, 0.58f, 1.0f,
+	-0.426f, 0.0f, 0.669f, 0.585f, 1.0f, -0.423f, 0.0f, 0.671f, 0.591f, 1.0f, -0.419f, 0.0f, 0.673f, 0.595f, 1.0f, -0.416f, 0.0f, 0.675f, 0.6f, 1.0f,
+	-0.412f, 0.0f, 0.678f, 0.604f, 1.0f, -0.409f, 0.0f, 0.68f, 0.609f, 1.0f, -0.405f, 0.0f, 0.682f, 0.613f, 1.0f, -0.401f, 0.0f, 0.684f, 0.618f, 1.0f,
+	-0.398f, 0.0f, 0.687f, 0.622f, 1.0f, -0.394f, 0.0f, 0.689f, 0.627f, 1.0f, -0.39f, 0.0f, 0.692f, 0.632f, 1.0f, -0.386f, 0.0f, 0.694f, 0.638f, 1.0f,
+	-0.381f, 0.0f, 0.697f, 0.643f, 1.0f, -0.377f, 0.0f, 0.7f, 0.649f, 1.0f, -0.373f, 0.0f, 0.702f, 0.654f, 1.0f, -0.368f, 0.0f, 0.705f, 0.659f, 1.0f,
+	-0.363f, 0.0f, 0.707f, 0.663f, 1.0f, -0.359f, 0.0f, 0.71f, 0.667f, 1.0f, -0.354f, 0.0f, 0.712f, 0.671f, 1.0f, -0.349f, 0.0f, 0.715f, 0.674f, 1.0f,
+	-0.345f, 0.0f, 0.717f, 0.677f, 1.0f, -0.34f, 0.0f, 0.72f, 0.68f, 1.0f, -0.335f, 0.0f, 0.722f, 0.683f, 1.0f, -0.33f, 0.0f, 0.725f, 0.685f, 1.0f,
+	-0.326f, 0.0f, 0.727f, 0.687f, 1.0f, -0.321f, 0.0f, 0.73f, 0.689f, 1.0f, -0.316f, 0.0f, 0.732f, 0.691f, 1.0f, -0.312f, 0.0f, 0.734f, 0.693f, 1.0f,
+	-0.307f, 0.0f, 0.736f, 0.694f, 1.0f, -0.302f, 0.0f, 0.738f, 0.696f, 1.0f, -0.298f, 0.0f, 0.74f, 0.697f, 1.0f, -0.293f, 0.0f, 0.741f, 0.698f, 1.0f,
+	-0.288f, 0.0f, 0.743f, 0.699f, 1.0f, -0.284f, 0.0f, 0.745f, 0.699f, 1.0f, -0.279f, 0.0f, 0.746f, 0.7f, 1.0f, -0.275f, 0.0f, 0.748f, 0.701f, 1.0f,
+	-0.27f, 0.0f, 0.749f, 0.702f, 1.0f, -0.265f, 0.0f, 0.751f, 0.702f, 1.0f, -0.261f, 0.0f, 0.752f, 0.704f, 1.0f, -0.256f, 0.0f, 0.753f, 0.705f, 1.0f,
+	-0.252f, 0.0f, 0.755f, 0.706f, 1.0f, -0.247f, 0.0f, 0.756f, 0.707f, 1.0f, -0.242f, 0.0f, 0.757f, 0.709f, 1.0f, -0.237f, 0.0f, 0.758f, 0.711f, 1.0f,
+	-0.233f, 0.0f, 0.759f, 0.713f, 1.0f, -0.228f, 0.0f, 0.761f, 0.715f, 1.0f, -0.223f, 0.0f, 0.762f, 0.717f, 1.0f, -0.218f, 0.0f, 0.763f, 0.719f, 1.0f,
+	-0.213f, 0.0f, 0.764f, 0.721f, 1.0f, -0.209f, 0.0f, 0.765f, 0.723f, 1.0f, -0.204f, 0.0f, 0.765f, 0.726f, 1.0f, -0.199f, 0.0f, 0.766f, 0.728f, 1.0f,
+	-0.194f, 0.0f, 0.767f, 0.73f, 1.0f, -0.189f, 0.0f, 0.768f, 0.731f, 1.0f, -0.183f, 0.0f, 0.769f, 0.733f, 1.0f, -0.178f, 0.0f, 0.77f, 0.735f, 1.0f,
+	-0.173f, 0.0f, 0.77f, 0.736f, 1.0f, -0.168f, 0.0f, 0.771f, 0.738f, 1.0f, -0.163f, 0.0f, 0.772f, 0.739f, 1.0f, -0.158f, 0.0f, 0.772f, 0.741f, 1.0f,
+	-0.152f, 0.0f, 0.773f, 0.742f, 1.0f, -0.147f, 0.0f, 0.774f, 0.744f, 1.0f, -0.142f, 0.0f, 0.774f, 0.746f, 1.0f, -0.137f, 0.0f, 0.775f, 0.748f, 1.0f,
+	-0.132f, 0.0f, 0.775f, 0.749f, 1.0f, -0.127f, 0.0f, 0.776f, 0.751f, 1.0f, -0.122f, 0.0f, 0.776f, 0.752f, 1.0f, -0.117f, 0.0f, 0.776f, 0.753f, 1.0f,
+	-0.112f, 0.0f, 0.777f, 0.754f, 1.0f, -0.108f, 0.0f, 0.777f, 0.755f, 1.0f, -0.103f, 0.0f, 0.777f, 0.755f, 1.0f, -0.099f, 0.0f, 0.777f, 0.756f, 1.0f,
+	-0.095f, 0.0f, 0.778f, 0.757f, 1.0f, -0.09f, 0.0f, 0.778f, 0.758f, 1.0f, -0.086f, 0.0f, 0.778f, 0.759f, 1.0f, -0.082f, 0.0f, 0.778f, 0.759f, 1.0f,
+	-0.077f, 0.0f, 0.778f, 0.76f, 1.0f, -0.073f, 0.0f, 0.779f, 0.76f, 1.0f, -0.069f, 0.0f, 0.779f, 0.761f, 1.0f, -0.064f, 0.0f, 0.779f, 0.761f, 1.0f,
+	-0.06f, 0.0f, 0.779f, 0.761f, 1.0f, -0.055f, 0.0f, 0.78f, 0.762f, 1.0f, -0.051f, 0.0f, 0.78f, 0.762f, 1.0f, -0.046f, 0.0f, 0.78f, 0.762f, 1.0f,
+	-0.041f, 0.0f, 0.78f, 0.762f, 1.0f, -0.037f, 0.0f, 0.781f, 0.762f, 1.0f, -0.032f, 0.0f, 0.781f, 0.763f, 1.0f, -0.027f, 0.0f, 0.781f, 0.763f, 1.0f,
+	-0.022f, 0.0f, 0.781f, 0.763f, 1.0f, -0.017f, 0.0f, 0.781f, 0.764f, 1.0f, -0.012f, 0.0f, 0.782f, 0.764f, 1.0f, -0.006f, 0.0f, 0.782f, 0.764f, 1.0f,
+	-0.001f, 0.0f, 0.782f, 0.765f, 1.0f, 0.004f, 0.0f, 0.782f, 0.766f, 1.0f, 0.009f, 0.0f, 0.782f, 0.766f, 1.0f, 0.015f, 0.0f, 0.782f, 0.767f, 1.0f,
+	0.02f, 0.0f, 0.782f, 0.768f, 1.0f, 0.025f, 0.0f, 0.782f, 0.769f, 1.0f, 0.031f, 0.0f, 0.782f, 0.77f, 1.0f, 0.036f, 0.0f, 0.782f, 0.771f, 1.0f,
+	0.042f, 0.0f, 0.782f, 0.772f, 1.0f, 0.048f, 0.0f, 0.782f, 0.773f, 1.0f, 0.053f, 0.0f, 0.782f, 0.774f, 1.0f, 0.059f, 0.0f, 0.782f, 0.775f, 1.0f,
+	0.065f, 0.0f, 0.782f, 0.775f, 1.0f, 0.07f, 0.0f, 0.782f, 0.776f, 1.0f, 0.076f, 0.0f, 0.782f, 0.776f, 1.0f, 0.082f, 0.0f, 0.782f, 0.776f, 1.0f,
+	0.088f, 0.0f, 0.782f, 0.776f, 1.0f, 0.094f, 0.0f, 0.782f, 0.777f, 1.0f, 0.1f, 0.0f, 0.781f, 0.777f, 1.0f, 0.106f, 0.0f, 0.781f, 0.778f, 1.0f,
+	0.111f, 0.0f, 0.781f, 0.779f, 1.0f, 0.117f, 0.0f, 0.781f, 0.779f, 1.0f, 0.123f, 0.0f, 0.781f, 0.78f, 1.0f, 0.129f, 0.0f, 0.78f, 0.78f, 1.0f,
+	0.135f, 0.0f, 0.78f, 0.781f, 1.0f, 0.141f, 0.0f, 0.779f, 0.781f, 1.0f, 0.147f, 0.0f, 0.779f, 0.782f, 1.0f, 0.153f, 0.0f, 0.778f, 0.783f, 1.0f,
+	0.159f, 0.0f, 0.777f, 0.784f, 1.0f, 0.165f, 0.0f, 0.776f, 0.785f, 1.0f, 0.171f, 0.0f, 0.775f, 0.786f, 1.0f, 0.178f, 0.0f, 0.774f, 0.787f, 1.0f,
+	0.185f, 0.0f, 0.773f, 0.788f, 1.0f, 0.192f, 0.0f, 0.772f, 0.789f, 1.0f, 0.2f, 0.0f, 0.771f, 0.79f, 1.0f, 0.208f, 0.0f, 0.77f, 0.791f, 1.0f,
+	0.218f, 0.0f, 0.768f, 0.793f, 1.0f, 0.228f, 0.0f, 0.766f, 0.796f, 1.0f, 0.239f, 0.0f, 0.764f, 0.799f, 1.0f, 0.25f, 0.0f, 0.762f, 0.802f, 1.0f,
+	0.261f, 0.0f, 0.759f, 0.806f, 1.0f, 0.271f, 0.0f, 0.755f, 0.81f, 1.0f, 0.282f, 0.0f, 0.752f, 0.815f, 1.0f, 0.293f, 0.0f, 0.748f, 0.819f, 1.0f,
+	0.304f, 0.0f, 0.744f, 0.825f, 1.0f, 0.315f, 0.0f, 0.74f, 0.83f, 1.0f, 0.326f, 0.0f, 0.736f, 0.836f, 1.0f, 0.337f, 0.0f, 0.731f, 0.843f, 1.0f,
+	0.349f, 0.0f, 0.727f, 0.85f, 1.0f, 0.361f, 0.0f, 0.722f, 0.858f, 1.0f, 0.372f, 0.0f, 0.718f, 0.866f, 1.0f, 0.384f, 0.0f, 0.712f, 0.874f, 1.0f,
+	0.395f, 0.0f, 0.706f, 0.882f, 1.0f, 0.407f, 0.0f, 0.7f, 0.89f, 1.0f, 0.418f, 0.0f, 0.693f, 0.898f, 1.0f, 0.43f, 0.0f, 0.685f, 0.905f, 1.0f,
+	0.442f, 0.0f, 0.677f, 0.912f, 1.0f, 0.458f, 0.0f, 0.666f, 0.918f, 1.0f, 0.473f, 0.0f, 0.654f, 0.924f, 1.0f, 0.49f, 0.0f, 0.64f, 0.93f, 1.0f,
+	0.506f, 0.0f, 0.625f, 0.935f, 1.0f, 0.522f, 0.0f, 0.611f, 0.939f, 1.0f, 0.538f, 0.0f, 0.596f, 0.941f, 1.0f, 0.554f, 0.0f, 0.58f, 0.942f, 1.0f,
+	0.569f, 0.0f, 0.564f, 0.941f, 1.0f, 0.584f, 0.0f, 0.548f, 0.935f, 1.0f, 0.598f, 0.0f, 0.533f, 0.925f, 1.0f, 0.612f, 0.0f, 0.517f, 0.91f, 1.0f,
+	0.625f, 0.0f, 0.501f, 0.891f, 1.0f, 0.638f, 0.0f, 0.484f, 0.868f, 1.0f, 0.65f, 0.0f, 0.468f, 0.839f, 1.0f, 0.662f, 0.0f, 0.452f, 0.806f, 1.0f,
+	0.671f, 0.0f, 0.437f, 0.766f, 1.0f, 0.679f, 0.0f, 0.423f, 0.718f, 1.0f, 0.685f, 0.0f, 0.412f, 0.661f, 1.0f, 0.691f, 0.0f, 0.403f, 0.595f, 1.0f,
+	0.697f, 0.0f, 0.396f, 0.519f, 1.0f, 0.701f, 0.0f, 0.391f, 0.44f, 1.0f, 0.704f, 0.0f, 0.387f, 0.344f, 1.0f, 0.707f, 0.0f, 0.384f, 0.264f, 1.0f,
+	0.711f, 0.0f, 0.38f, 0.133f, 1.0f,
+};
+
+/* ***************************************************************** */
+/* Monkey Color Data */
+
+static const ColorTemplate gp_monkey_pct_black = {
+	"Black",
+	{0.0f, 0.0f, 0.0f, 1.0f},
+	{0.0f, 0.0f, 0.0f, 0.0f},
+};
+
+static const ColorTemplate gp_monkey_pct_skin = {
+	"Skin",
+	{0.553f, 0.39f, 0.266f, 0.0f},
+	{0.733f, 0.567f, 0.359f, 1.0f},
+};
+
+static const ColorTemplate gp_monkey_pct_skin_light = {
+	"Skin_Light",
+	{0.553f, 0.39f, 0.266f, 0.0f},
+	{0.913f, 0.828f, 0.637f, 1.0f},
+};
+
+static const ColorTemplate gp_monkey_pct_skin_shadow = {
+	"Skin_Shadow",
+	{0.553f, 0.39f, 0.266f, 0.0f},
+	{0.32f, 0.29f, 0.223f, 1.0f},
+};
+
+static const ColorTemplate gp_monkey_pct_eyes = {
+	"Eyes",
+	{0.553f, 0.39f, 0.266f, 0.0f},
+	{0.773f, 0.762f, 0.73f, 1.0f},
+};
+
+static const ColorTemplate gp_monkey_pct_pupils = {
+	"Pupils",
+	{0.107f, 0.075f, 0.051f, 0.0f},
+	{0.153f, 0.057f, 0.063f, 1.0f},
+};
+
+/* ***************************************************************** */
+/* Monkey API */
+
+/* add a 2D Suzanne (original model created by Matias Mendiola) */
+void ED_gpencil_create_monkey(bContext *C, float mat[4][4])
+{
+	Main *bmain = CTX_data_main(C);
+	Object *ob = CTX_data_active_object(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+	bGPdata *gpd = (bGPdata *)ob->data;
+	bGPDstroke *gps;
+
+	/* create colors */
+	int color_Black = gpencil_monkey_color(bmain, ob, &gp_monkey_pct_black);
+	int color_Skin = gpencil_monkey_color(bmain, ob, &gp_monkey_pct_skin);
+	int color_Skin_Light = gpencil_monkey_color(bmain, ob, &gp_monkey_pct_skin_light);
+	int color_Skin_Shadow = gpencil_monkey_color(bmain, ob, &gp_monkey_pct_skin_shadow);
+	int color_Eyes = gpencil_monkey_color(bmain, ob, &gp_monkey_pct_eyes);
+	int color_Pupils = gpencil_monkey_color(bmain, ob, &gp_monkey_pct_pupils);
+
+	/* layers */
+	/* NOTE: For now, we just add new layers, to make it easier to separate out old/new instances */
+	bGPDlayer *Colors = BKE_gpencil_layer_addnew(gpd, "Colors", false);
+	bGPDlayer *Lines = BKE_gpencil_layer_addnew(gpd, "Lines", true);
+
+	/* frames */
+	/* NOTE: No need to check for existing, as this will tkae care of it for us */
+	bGPDframe *frameColor = BKE_gpencil_frame_addnew(Colors, cfra_eval);
+	bGPDframe *frameLines = BKE_gpencil_frame_addnew(Lines, cfra_eval);
+
+	/* generate strokes */
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin, 538, 3);
+	BKE_gpencil_stroke_add_points(gps, data0, 538, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Eyes, 136, 3);
+	BKE_gpencil_stroke_add_points(gps, data1, 136, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin, 2, 3);
+	BKE_gpencil_stroke_add_points(gps, data2, 2, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Light, 1, 3);
+	BKE_gpencil_stroke_add_points(gps, data3, 1, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Light, 1, 3);
+	BKE_gpencil_stroke_add_points(gps, data4, 1, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Light, 48, 3);
+	BKE_gpencil_stroke_add_points(gps, data5, 48, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Light, 47, 3);
+	BKE_gpencil_stroke_add_points(gps, data6, 47, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Light, 162, 3);
+	BKE_gpencil_stroke_add_points(gps, data7, 162, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Light, 55, 3);
+	BKE_gpencil_stroke_add_points(gps, data8, 55, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Light, 70, 3);
+	BKE_gpencil_stroke_add_points(gps, data9, 70, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Light, 227, 3);
+	BKE_gpencil_stroke_add_points(gps, data10, 227, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Shadow, 1, 3);
+	BKE_gpencil_stroke_add_points(gps, data11, 1, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Shadow, 123, 3);
+	BKE_gpencil_stroke_add_points(gps, data12, 123, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Shadow, 125, 3);
+	BKE_gpencil_stroke_add_points(gps, data13, 125, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Shadow, 45, 3);
+	BKE_gpencil_stroke_add_points(gps, data14, 45, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Shadow, 44, 3);
+	BKE_gpencil_stroke_add_points(gps, data15, 44, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Shadow, 84, 3);
+	BKE_gpencil_stroke_add_points(gps, data16, 84, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Shadow, 56, 3);
+	BKE_gpencil_stroke_add_points(gps, data17, 56, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Shadow, 59, 3);
+	BKE_gpencil_stroke_add_points(gps, data18, 59, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Skin_Shadow, 100, 3);
+	BKE_gpencil_stroke_add_points(gps, data19, 100, mat);
+
+	gps = BKE_gpencil_add_stroke(frameColor, color_Eyes, 136, 3);
+	BKE_gpencil_stroke_add_points(gps, data20, 136, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 353, 3);
+	BKE_gpencil_stroke_add_points(gps, data21, 353, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 309, 3);
+	BKE_gpencil_stroke_add_points(gps, data22, 309, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 209, 3);
+	BKE_gpencil_stroke_add_points(gps, data23, 209, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 133, 3);
+	BKE_gpencil_stroke_add_points(gps, data24, 133, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 389, 3);
+	BKE_gpencil_stroke_add_points(gps, data25, 389, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 41, 3);
+	BKE_gpencil_stroke_add_points(gps, data26, 41, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 77, 3);
+	BKE_gpencil_stroke_add_points(gps, data27, 77, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 257, 3);
+	BKE_gpencil_stroke_add_points(gps, data28, 257, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 205, 3);
+	BKE_gpencil_stroke_add_points(gps, data29, 205, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 33, 3);
+	BKE_gpencil_stroke_add_points(gps, data30, 33, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 37, 3);
+	BKE_gpencil_stroke_add_points(gps, data31, 37, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 201, 3);
+	BKE_gpencil_stroke_add_points(gps, data32, 201, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Pupils, 69, 3);
+	BKE_gpencil_stroke_add_points(gps, data33, 69, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Pupils, 57, 3);
+	BKE_gpencil_stroke_add_points(gps, data34, 57, mat);
+
+	gps = BKE_gpencil_add_stroke(frameLines, color_Black, 261, 3);
+	BKE_gpencil_stroke_add_points(gps, data35, 261, mat);
+
+	/* update depsgraph */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	gpd->flag |= GP_DATA_CACHE_IS_DIRTY;
+}
+
+
+/* ***************************************************************** */
diff --git a/source/blender/editors/gpencil/gpencil_add_stroke.c b/source/blender/editors/gpencil/gpencil_add_stroke.c
new file mode 100644
index 00000000000..c5020593bcb
--- /dev/null
+++ b/source/blender/editors/gpencil/gpencil_add_stroke.c
@@ -0,0 +1,248 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2017 Blender Foundation
+ * This is a new part of Blender
+ *
+ * Contributor(s): Antonio Vazquez, Matias Mendiola
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/gpencil/gpencil_add_stroke.c
+ *  \ingroup edgpencil
+ */
+
+#include "BLI_blenlib.h"
+#include "BLI_math.h"
+#include "BLI_utildefines.h"
+
+#include "DNA_gpencil_types.h"
+#include "DNA_object_types.h"
+#include "DNA_scene_types.h"
+
+#include "BKE_context.h"
+#include "BKE_gpencil.h"
+#include "BKE_main.h"
+#include "BKE_material.h"
+
+#include "DEG_depsgraph.h"
+#include "DEG_depsgraph_query.h"
+
+#include "ED_gpencil.h"
+
+/* Definition of the most important info from a color */
+typedef struct ColorTemplate {
+	const char *name;
+	float line[4];
+	float fill[4];
+} ColorTemplate;
+
+/* Add color an ensure duplications (matched by name) */
+static int gp_stroke_material(Main *bmain, Object *ob, const ColorTemplate *pct)
+{
+	short *totcol = give_totcolp(ob);
+	Material *ma = NULL;
+	for (short i = 0; i < *totcol; i++) {
+		ma = give_current_material(ob, i + 1);
+		if (STREQ(ma->id.name, pct->name)) {
+			return i;
+		}
+	}
+
+	/* create a new one */
+	BKE_object_material_slot_add(bmain, ob);
+	ma = BKE_material_add_gpencil(bmain, pct->name);
+	assign_material(bmain, ob, ma, ob->totcol, BKE_MAT_ASSIGN_USERPREF);
+
+	copy_v4_v4(ma->gp_style->stroke_rgba, pct->line);
+	copy_v4_v4(ma->gp_style->fill_rgba, pct->fill);
+
+	return BKE_gpencil_get_material_index(ob, ma) - 1;
+}
+
+/* ***************************************************************** */
+/* Stroke Geometry */
+
+static const float data0[175 * GP_PRIM_DATABUF_SIZE] = {
+	-1.281f, 0.0f, -0.315f, 0.038f, 1.0f, -1.269f, 0.0f, -0.302f, 0.069f, 1.0f,
+	-1.261f, 0.0f, -0.293f, 0.089f, 1.0f, -1.251f, 0.0f, -0.282f, 0.112f, 1.0f,
+	-1.241f, 0.0f, -0.271f, 0.134f, 1.0f, -1.23f, 0.0f, -0.259f, 0.155f, 1.0f,
+	-1.219f, 0.0f, -0.247f, 0.175f, 1.0f, -1.208f, 0.0f, -0.234f, 0.194f, 1.0f,
+	-1.196f, 0.0f, -0.221f, 0.211f, 1.0f, -1.184f, 0.0f, -0.208f, 0.227f, 1.0f,
+	-1.172f, 0.0f, -0.194f, 0.242f, 1.0f, -1.159f, 0.0f, -0.18f, 0.256f, 1.0f,
+	-1.147f, 0.0f, -0.165f, 0.268f, 1.0f, -1.134f, 0.0f, -0.151f, 0.28f, 1.0f,
+	-1.121f, 0.0f, -0.136f, 0.29f, 1.0f, -1.108f, 0.0f, -0.121f, 0.299f, 1.0f,
+	-1.094f, 0.0f, -0.106f, 0.307f, 1.0f, -1.08f, 0.0f, -0.091f, 0.315f, 1.0f,
+	-1.066f, 0.0f, -0.076f, 0.322f, 1.0f, -1.052f, 0.0f, -0.061f, 0.329f, 1.0f,
+	-1.037f, 0.0f, -0.047f, 0.335f, 1.0f, -1.022f, 0.0f, -0.032f, 0.341f, 1.0f,
+	-1.007f, 0.0f, -0.017f, 0.346f, 1.0f, -0.991f, 0.0f, -0.003f, 0.351f, 1.0f,
+	-0.975f, 0.0f, 0.012f, 0.355f, 1.0f, -0.959f, 0.0f, 0.027f, 0.36f, 1.0f,
+	-0.942f, 0.0f, 0.041f, 0.364f, 1.0f, -0.926f, 0.0f, 0.056f, 0.368f, 1.0f,
+	-0.909f, 0.0f, 0.071f, 0.371f, 1.0f, -0.893f, 0.0f, 0.086f, 0.373f, 1.0f,
+	-0.876f, 0.0f, 0.1f, 0.376f, 1.0f, -0.859f, 0.0f, 0.115f, 0.377f, 1.0f,
+	-0.842f, 0.0f, 0.129f, 0.378f, 1.0f, -0.824f, 0.0f, 0.144f, 0.379f, 1.0f,
+	-0.807f, 0.0f, 0.158f, 0.379f, 1.0f, -0.79f, 0.0f, 0.172f, 0.379f, 1.0f,
+	-0.773f, 0.0f, 0.186f, 0.38f, 1.0f, -0.755f, 0.0f, 0.199f, 0.38f, 1.0f,
+	-0.738f, 0.0f, 0.212f, 0.381f, 1.0f, -0.721f, 0.0f, 0.224f, 0.382f, 1.0f,
+	-0.703f, 0.0f, 0.236f, 0.384f, 1.0f, -0.686f, 0.0f, 0.248f, 0.386f, 1.0f,
+	-0.67f, 0.0f, 0.26f, 0.388f, 1.0f, -0.653f, 0.0f, 0.27f, 0.39f, 1.0f,
+	-0.637f, 0.0f, 0.28f, 0.393f, 1.0f, -0.621f, 0.0f, 0.29f, 0.396f, 1.0f,
+	-0.605f, 0.0f, 0.298f, 0.399f, 1.0f, -0.589f, 0.0f, 0.306f, 0.403f, 1.0f,
+	-0.574f, 0.0f, 0.313f, 0.407f, 1.0f, -0.559f, 0.0f, 0.319f, 0.411f, 1.0f,
+	-0.544f, 0.0f, 0.325f, 0.415f, 1.0f, -0.53f, 0.0f, 0.331f, 0.42f, 1.0f,
+	-0.516f, 0.0f, 0.336f, 0.425f, 1.0f, -0.503f, 0.0f, 0.34f, 0.431f, 1.0f,
+	-0.489f, 0.0f, 0.344f, 0.437f, 1.0f, -0.477f, 0.0f, 0.347f, 0.443f, 1.0f,
+	-0.464f, 0.0f, 0.35f, 0.45f, 1.0f, -0.452f, 0.0f, 0.352f, 0.457f, 1.0f,
+	-0.44f, 0.0f, 0.354f, 0.464f, 1.0f, -0.429f, 0.0f, 0.355f, 0.471f, 1.0f,
+	-0.418f, 0.0f, 0.355f, 0.479f, 1.0f, -0.407f, 0.0f, 0.355f, 0.487f, 1.0f,
+	-0.397f, 0.0f, 0.354f, 0.495f, 1.0f, -0.387f, 0.0f, 0.353f, 0.503f, 1.0f,
+	-0.378f, 0.0f, 0.351f, 0.512f, 1.0f, -0.368f, 0.0f, 0.348f, 0.52f, 1.0f,
+	-0.36f, 0.0f, 0.344f, 0.528f, 1.0f, -0.351f, 0.0f, 0.34f, 0.537f, 1.0f,
+	-0.344f, 0.0f, 0.336f, 0.545f, 1.0f, -0.336f, 0.0f, 0.33f, 0.553f, 1.0f,
+	-0.329f, 0.0f, 0.324f, 0.562f, 1.0f, -0.322f, 0.0f, 0.318f, 0.57f, 1.0f,
+	-0.316f, 0.0f, 0.31f, 0.579f, 1.0f, -0.311f, 0.0f, 0.303f, 0.588f, 1.0f,
+	-0.306f, 0.0f, 0.294f, 0.597f, 1.0f, -0.301f, 0.0f, 0.285f, 0.606f, 1.0f,
+	-0.297f, 0.0f, 0.275f, 0.615f, 1.0f, -0.293f, 0.0f, 0.264f, 0.625f, 1.0f,
+	-0.29f, 0.0f, 0.253f, 0.635f, 1.0f, -0.288f, 0.0f, 0.241f, 0.644f, 1.0f,
+	-0.286f, 0.0f, 0.229f, 0.654f, 1.0f, -0.285f, 0.0f, 0.216f, 0.664f, 1.0f,
+	-0.284f, 0.0f, 0.202f, 0.675f, 1.0f, -0.283f, 0.0f, 0.188f, 0.685f, 1.0f,
+	-0.283f, 0.0f, 0.173f, 0.696f, 1.0f, -0.284f, 0.0f, 0.158f, 0.707f, 1.0f,
+	-0.285f, 0.0f, 0.142f, 0.718f, 1.0f, -0.286f, 0.0f, 0.125f, 0.729f, 1.0f,
+	-0.288f, 0.0f, 0.108f, 0.74f, 1.0f, -0.29f, 0.0f, 0.091f, 0.751f, 1.0f,
+	-0.293f, 0.0f, 0.073f, 0.761f, 1.0f, -0.295f, 0.0f, 0.054f, 0.772f, 1.0f,
+	-0.298f, 0.0f, 0.035f, 0.782f, 1.0f, -0.302f, 0.0f, 0.016f, 0.793f, 1.0f,
+	-0.305f, 0.0f, -0.004f, 0.804f, 1.0f, -0.309f, 0.0f, -0.024f, 0.815f, 1.0f,
+	-0.313f, 0.0f, -0.044f, 0.828f, 1.0f, -0.317f, 0.0f, -0.065f, 0.843f, 1.0f,
+	-0.321f, 0.0f, -0.085f, 0.86f, 1.0f, -0.326f, 0.0f, -0.106f, 0.879f, 1.0f,
+	-0.33f, 0.0f, -0.127f, 0.897f, 1.0f, -0.335f, 0.0f, -0.148f, 0.915f, 1.0f,
+	-0.339f, 0.0f, -0.168f, 0.932f, 1.0f, -0.344f, 0.0f, -0.189f, 0.947f, 1.0f,
+	-0.348f, 0.0f, -0.21f, 0.962f, 1.0f, -0.353f, 0.0f, -0.23f, 0.974f, 1.0f,
+	-0.357f, 0.0f, -0.25f, 0.985f, 1.0f, -0.361f, 0.0f, -0.27f, 0.995f, 1.0f,
+	-0.365f, 0.0f, -0.29f, 1.004f, 1.0f, -0.369f, 0.0f, -0.309f, 1.011f, 1.0f,
+	-0.372f, 0.0f, -0.328f, 1.018f, 1.0f, -0.375f, 0.0f, -0.347f, 1.024f, 1.0f,
+	-0.377f, 0.0f, -0.365f, 1.029f, 1.0f, -0.379f, 0.0f, -0.383f, 1.033f, 1.0f,
+	-0.38f, 0.0f, -0.4f, 1.036f, 1.0f, -0.38f, 0.0f, -0.417f, 1.037f, 1.0f,
+	-0.38f, 0.0f, -0.434f, 1.037f, 1.0f, -0.379f, 0.0f, -0.449f, 1.035f, 1.0f,
+	-0.377f, 0.0f, -0.464f, 1.032f, 1.0f, -0.374f, 0.0f, -0.478f, 1.029f, 1.0f,
+	-0.371f, 0.0f, -0.491f, 1.026f, 1.0f, -0.366f, 0.0f, -0.503f, 1.023f, 1.0f,
+	-0.361f, 0.0f, -0.513f, 1.021f, 1.0f, -0.354f, 0.0f, -0.523f, 1.019f, 1.0f,
+	-0.347f, 0.0f, -0.531f, 1.017f, 1.0f, -0.339f, 0.0f, -0.538f, 1.016f, 1.0f,
+	-0.33f, 0.0f, -0.543f, 1.016f, 1.0f, -0.32f, 0.0f, -0.547f, 1.016f, 1.0f,
+	-0.31f, 0.0f, -0.549f, 1.016f, 1.0f, -0.298f, 0.0f, -0.55f, 1.017f, 1.0f,
+	-0.286f, 0.0f, -0.55f, 1.017f, 1.0f, -0.274f, 0.0f, -0.548f, 1.018f, 1.0f,
+	-0.261f, 0.0f, -0.544f, 1.017f, 1.0f, -0.247f, 0.0f, -0.539f, 1.017f, 1.0f,
+	-0.232f, 0.0f, -0.533f, 1.016f, 1.0f, -0.218f, 0.0f, -0.525f, 1.015f, 1.0f,
+	-0.202f, 0.0f, -0.515f, 1.013f, 1.0f, -0.186f, 0.0f, -0.503f, 1.009f, 1.0f,
+	-0.169f, 0.0f, -0.49f, 1.005f, 1.0f, -0.151f, 0.0f, -0.475f, 0.998f, 1.0f,
+	-0.132f, 0.0f, -0.458f, 0.99f, 1.0f, -0.112f, 0.0f, -0.44f, 0.98f, 1.0f,
+	-0.091f, 0.0f, -0.42f, 0.968f, 1.0f, -0.069f, 0.0f, -0.398f, 0.955f, 1.0f,
+	-0.045f, 0.0f, -0.375f, 0.939f, 1.0f, -0.021f, 0.0f, -0.35f, 0.923f, 1.0f,
+	0.005f, 0.0f, -0.324f, 0.908f, 1.0f, 0.031f, 0.0f, -0.297f, 0.895f, 1.0f,
+	0.06f, 0.0f, -0.268f, 0.882f, 1.0f, 0.089f, 0.0f, -0.238f, 0.87f, 1.0f,
+	0.12f, 0.0f, -0.207f, 0.858f, 1.0f, 0.153f, 0.0f, -0.175f, 0.844f, 1.0f,
+	0.187f, 0.0f, -0.14f, 0.828f, 1.0f, 0.224f, 0.0f, -0.104f, 0.81f, 1.0f,
+	0.262f, 0.0f, -0.067f, 0.79f, 1.0f, 0.302f, 0.0f, -0.027f, 0.769f, 1.0f,
+	0.344f, 0.0f, 0.014f, 0.747f, 1.0f, 0.388f, 0.0f, 0.056f, 0.724f, 1.0f,
+	0.434f, 0.0f, 0.1f, 0.7f, 1.0f, 0.483f, 0.0f, 0.145f, 0.676f, 1.0f,
+	0.533f, 0.0f, 0.191f, 0.651f, 1.0f, 0.585f, 0.0f, 0.238f, 0.625f, 1.0f,
+	0.637f, 0.0f, 0.284f, 0.599f, 1.0f, 0.69f, 0.0f, 0.33f, 0.573f, 1.0f,
+	0.746f, 0.0f, 0.376f, 0.546f, 1.0f, 0.802f, 0.0f, 0.421f, 0.516f, 1.0f,
+	0.859f, 0.0f, 0.464f, 0.483f, 1.0f, 0.915f, 0.0f, 0.506f, 0.446f, 1.0f,
+	0.97f, 0.0f, 0.545f, 0.407f, 1.0f, 1.023f, 0.0f, 0.581f, 0.365f, 1.0f,
+	1.075f, 0.0f, 0.614f, 0.322f, 1.0f, 1.122f, 0.0f, 0.643f, 0.28f, 1.0f,
+	1.169f, 0.0f, 0.671f, 0.236f, 1.0f, 1.207f, 0.0f, 0.693f, 0.202f, 1.0f,
+	1.264f, 0.0f, 0.725f, 0.155f, 1.0f,
+};
+
+/* ***************************************************************** */
+/* Color Data */
+
+static const ColorTemplate gp_stroke_material_black = {
+	"Black",
+	{0.0f, 0.0f, 0.0f, 1.0f},
+	{0.0f, 0.0f, 0.0f, 0.0f},
+};
+
+static const ColorTemplate gp_stroke_material_white = {
+	"White",
+	{1.0f, 1.0f, 1.0f, 1.0f},
+	{0.0f, 0.0f, 0.0f, 0.0f},
+};
+
+static const ColorTemplate gp_stroke_material_red = {
+	"Red",
+	{1.0f, 0.0f, 0.0f, 1.0f},
+	{0.0f, 0.0f, 0.0f, 0.0f},
+};
+
+static const ColorTemplate gp_stroke_material_green = {
+	"Green",
+	{0.0f, 1.0f, 0.0f, 1.0f},
+	{0.0f, 0.0f, 0.0f, 0.0f},
+};
+
+static const ColorTemplate gp_stroke_material_blue = {
+	"Blue",
+	{0.0f, 0.0f, 1.0f, 1.0f},
+	{0.0f, 0.0f, 0.0f, 0.0f},
+};
+
+static const ColorTemplate gp_stroke_material_grey = {
+	"Grey",
+	{0.358f, 0.358f, 0.358f, 1.0f},
+	{0.5f, 0.5f, 0.5f, 1.0f},
+};
+
+/* ***************************************************************** */
+/* Stroke API */
+
+/* add a Simple stroke with colors (original design created by Daniel M. Lara and Matias Mendiola) */
+void ED_gpencil_create_stroke(bContext *C, float mat[4][4])
+{
+	Main *bmain = CTX_data_main(C);
+	Object *ob = CTX_data_active_object(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+	bGPdata *gpd = (bGPdata *)ob->data;
+	bGPDstroke *gps;
+
+	/* create colors */
+	int color_black = gp_stroke_material(bmain, ob, &gp_stroke_material_black);
+	gp_stroke_material(bmain, ob, &gp_stroke_material_white);
+	gp_stroke_material(bmain, ob, &gp_stroke_material_red);
+	gp_stroke_material(bmain, ob, &gp_stroke_material_green);
+	gp_stroke_material(bmain, ob, &gp_stroke_material_blue);
+	gp_stroke_material(bmain, ob, &gp_stroke_material_grey);
+
+	/* layers */
+	bGPDlayer *colors = BKE_gpencil_layer_addnew(gpd, "Colors", false);
+	bGPDlayer *lines = BKE_gpencil_layer_addnew(gpd, "Lines", false);
+
+	/* frames */
+	bGPDframe *frame_color = BKE_gpencil_frame_addnew(colors, cfra_eval);
+	bGPDframe *frame_lines = BKE_gpencil_frame_addnew(lines, cfra_eval);
+	UNUSED_VARS(frame_color);
+
+	/* generate stroke */
+	gps = BKE_gpencil_add_stroke(frame_lines, color_black, 175, 3);
+	BKE_gpencil_stroke_add_points(gps, data0, 175, mat);
+
+	/* update depsgraph */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	gpd->flag |= GP_DATA_CACHE_IS_DIRTY;
+}
diff --git a/source/blender/editors/gpencil/gpencil_brush.c b/source/blender/editors/gpencil/gpencil_brush.c
index 0ddd8700c09..d8be0dd665a 100644
--- a/source/blender/editors/gpencil/gpencil_brush.c
+++ b/source/blender/editors/gpencil/gpencil_brush.c
@@ -48,6 +48,7 @@
 
 #include "BLT_translation.h"
 
+#include "DNA_meshdata_types.h"
 #include "DNA_scene_types.h"
 #include "DNA_screen_types.h"
 #include "DNA_space_types.h"
@@ -60,6 +61,9 @@
 #include "BKE_library.h"
 #include "BKE_report.h"
 #include "BKE_screen.h"
+#include "BKE_object_deform.h"
+#include "BKE_colortools.h"
+#include "BKE_material.h"
 
 #include "UI_interface.h"
 
@@ -80,6 +84,9 @@
 #include "GPU_immediate_util.h"
 #include "GPU_state.h"
 
+#include "DEG_depsgraph.h"
+#include "DEG_depsgraph_query.h"
+
 #include "gpencil_intern.h"
 
 /* ************************************************ */
@@ -89,7 +96,9 @@
 typedef struct tGP_BrushEditData {
 	/* Current editor/region/etc. */
 	/* NOTE: This stuff is mainly needed to handle 3D view projection stuff... */
+	Depsgraph *depsgraph;
 	Scene *scene;
+	Object *object;
 
 	ScrArea *sa;
 	ARegion *ar;
@@ -114,6 +123,10 @@ typedef struct tGP_BrushEditData {
 	/* Start of new sculpt stroke */
 	bool first;
 
+	/* Is multiframe editing enabled, and are we using falloff for that? */
+	bool is_multiframe;
+	bool use_multiframe_falloff;
+
 	/* Current frame */
 	int cfra;
 
@@ -128,6 +141,13 @@ typedef struct tGP_BrushEditData {
 	/* - effect vector (e.g. 2D/3D translation for grab brush) */
 	float dvec[3];
 
+	/* - multiframe falloff factor */
+	float mf_falloff;
+
+	/* active vertex group */
+	int vrgroup;
+
+
 	/* brush geometry (bounding box) */
 	rcti brush_rect;
 
@@ -147,12 +167,34 @@ typedef struct tGP_BrushEditData {
 
 
 /* Callback for performing some brush operation on a single point */
-typedef bool (*GP_BrushApplyCb)(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
+typedef bool (*GP_BrushApplyCb)(tGP_BrushEditData *gso, bGPDstroke *gps, int pt_index,
                                 const int radius, const int co[2]);
 
 /* ************************************************ */
 /* Utility Functions */
 
+/* apply lock axis reset */
+static void gpsculpt_compute_lock_axis(tGP_BrushEditData *gso, bGPDspoint *pt, const float save_pt[3])
+{
+	if (gso->sa->spacetype != SPACE_VIEW3D) {
+		return;
+	}
+
+	ToolSettings *ts = gso->scene->toolsettings;
+	int axis = ts->gp_sculpt.lock_axis;
+
+	/* lock axis control */
+	if (axis == 1) {
+		pt->x = save_pt[0];
+	}
+	if (axis == 2) {
+		pt->y = save_pt[1];
+	}
+	if (axis == 3) {
+		pt->z = save_pt[2];
+	}
+}
+
 /* Context ---------------------------------------- */
 
 /* Get the sculpting settings */
@@ -162,10 +204,18 @@ static GP_BrushEdit_Settings *gpsculpt_get_settings(Scene *scene)
 }
 
 /* Get the active brush */
-static GP_EditBrush_Data *gpsculpt_get_brush(Scene *scene)
+static GP_EditBrush_Data *gpsculpt_get_brush(Scene *scene, bool is_weight_mode)
 {
 	GP_BrushEdit_Settings *gset = &scene->toolsettings->gp_sculpt;
-	return &gset->brush[gset->brushtype];
+	GP_EditBrush_Data *brush = NULL;
+	if (is_weight_mode) {
+		brush = &gset->brush[gset->weighttype];
+	}
+	else {
+		brush = &gset->brush[gset->brushtype];
+	}
+
+	return brush;
 }
 
 /* Brush Operations ------------------------------- */
@@ -181,6 +231,14 @@ static bool gp_brush_invert_check(tGP_BrushEditData *gso)
 		invert ^= true;
 	}
 
+	/* set temporary status */
+	if (invert) {
+		gso->brush->flag |= GP_EDITBRUSH_FLAG_TMP_INVERT;
+	}
+	else {
+		gso->brush->flag &= ~GP_EDITBRUSH_FLAG_TMP_INVERT;
+	}
+
 	return invert;
 }
 
@@ -208,6 +266,9 @@ static float gp_brush_influence_calc(tGP_BrushEditData *gso, const int radius, c
 		influence *= fac;
 	}
 
+	/* apply multiframe falloff */
+	influence *= gso->mf_falloff;
+
 	/* return influence */
 	return influence;
 }
@@ -222,29 +283,34 @@ static float gp_brush_influence_calc(tGP_BrushEditData *gso, const int radius, c
 /* Smooth Brush */
 
 /* A simple (but slower + inaccurate) smooth-brush implementation to test the algorithm for stroke smoothing */
-static bool gp_brush_smooth_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
-                                  const int radius, const int co[2])
+static bool gp_brush_smooth_apply(
+        tGP_BrushEditData *gso, bGPDstroke *gps, int pt_index,
+        const int radius, const int co[2])
 {
-	GP_EditBrush_Data *brush = gso->brush;
+	// GP_EditBrush_Data *brush = gso->brush;
 	float inf = gp_brush_influence_calc(gso, radius, co);
-	bool affect_pressure = (brush->flag & GP_EDITBRUSH_FLAG_SMOOTH_PRESSURE) != 0;
 	/* need one flag enabled by default */
-	if ((gso->settings->flag & (GP_BRUSHEDIT_FLAG_APPLY_POSITION |
-	                            GP_BRUSHEDIT_FLAG_APPLY_STRENGTH |
-	                            GP_BRUSHEDIT_FLAG_APPLY_THICKNESS)) == 0)
+	if ((gso->settings->flag &
+	     (GP_BRUSHEDIT_FLAG_APPLY_POSITION |
+	      GP_BRUSHEDIT_FLAG_APPLY_STRENGTH |
+	      GP_BRUSHEDIT_FLAG_APPLY_THICKNESS |
+	      GP_BRUSHEDIT_FLAG_APPLY_UV)) == 0)
 	{
 		gso->settings->flag |= GP_BRUSHEDIT_FLAG_APPLY_POSITION;
 	}
 
 	/* perform smoothing */
 	if (gso->settings->flag & GP_BRUSHEDIT_FLAG_APPLY_POSITION) {
-		gp_smooth_stroke(gps, i, inf, affect_pressure);
+		BKE_gpencil_smooth_stroke(gps, pt_index, inf);
 	}
 	if (gso->settings->flag & GP_BRUSHEDIT_FLAG_APPLY_STRENGTH) {
-		gp_smooth_stroke_strength(gps, i, inf);
+		BKE_gpencil_smooth_stroke_strength(gps, pt_index, inf);
 	}
 	if (gso->settings->flag & GP_BRUSHEDIT_FLAG_APPLY_THICKNESS) {
-		gp_smooth_stroke_thickness(gps, i, inf);
+		BKE_gpencil_smooth_stroke_thickness(gps, pt_index, inf);
+	}
+	if (gso->settings->flag & GP_BRUSHEDIT_FLAG_APPLY_UV) {
+		BKE_gpencil_smooth_stroke_uv(gps, pt_index, inf);
 	}
 
 	return true;
@@ -254,10 +320,11 @@ static bool gp_brush_smooth_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i
 /* Line Thickness Brush */
 
 /* Make lines thicker or thinner by the specified amounts */
-static bool gp_brush_thickness_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
-                                     const int radius, const int co[2])
+static bool gp_brush_thickness_apply(
+        tGP_BrushEditData *gso, bGPDstroke *gps, int pt_index,
+        const int radius, const int co[2])
 {
-	bGPDspoint *pt = gps->points + i;
+	bGPDspoint *pt = gps->points + pt_index;
 	float inf;
 
 	/* Compute strength of effect
@@ -294,28 +361,29 @@ static bool gp_brush_thickness_apply(tGP_BrushEditData *gso, bGPDstroke *gps, in
 
 /* Make color more or less transparent by the specified amounts */
 static bool gp_brush_strength_apply(
-        tGP_BrushEditData *gso, bGPDstroke *gps, int i,
+        tGP_BrushEditData *gso, bGPDstroke *gps, int pt_index,
         const int radius, const int co[2])
 {
-	bGPDspoint *pt = gps->points + i;
+	bGPDspoint *pt = gps->points + pt_index;
 	float inf;
 
 	/* Compute strength of effect
-	 * - We divide the strength by 10, so that users can set "sane" values.
+	 * - We divide the strength, so that users can set "sane" values.
 	 *   Otherwise, good default values are in the range of 0.093
 	 */
-	inf = gp_brush_influence_calc(gso, radius, co) / 10.0f;
+	inf = gp_brush_influence_calc(gso, radius, co) / 20.0f;
 
 	/* apply */
-	// XXX: this is much too strong, and it should probably do some smoothing with the surrounding stuff
 	if (gp_brush_invert_check(gso)) {
-		/* make line thinner - reduce stroke pressure */
+		/* make line more transparent - reduce alpha factor */
 		pt->strength -= inf;
 	}
 	else {
-		/* make line thicker - increase stroke pressure */
+		/* make line more opaque - increase stroke strength */
 		pt->strength += inf;
 	}
+	/* smooth the strength */
+	BKE_gpencil_smooth_stroke_strength(gps, pt_index, inf);
 
 	/* Strength should stay within [0.0, 1.0] */
 	CLAMP(pt->strength, 0.0f, 1.0f);
@@ -382,8 +450,9 @@ static void gp_brush_grab_stroke_init(tGP_BrushEditData *gso, bGPDstroke *gps)
 }
 
 /* store references to stroke points in the initial stage */
-static bool gp_brush_grab_store_points(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
-                                       const int radius, const int co[2])
+static bool gp_brush_grab_store_points(
+        tGP_BrushEditData *gso, bGPDstroke *gps, int pt_index,
+        const int radius, const int co[2])
 {
 	tGPSB_Grab_StrokeData *data = BLI_ghash_lookup(gso->stroke_customdata, gps);
 	float inf = gp_brush_influence_calc(gso, radius, co);
@@ -392,7 +461,7 @@ static bool gp_brush_grab_store_points(tGP_BrushEditData *gso, bGPDstroke *gps,
 	BLI_assert(data->size < data->capacity);
 
 	/* insert this point into the set of affected points */
-	data->points[data->size]  = i;
+	data->points[data->size]  = pt_index;
 	data->weights[data->size] = inf;
 	data->size++;
 
@@ -431,7 +500,7 @@ static void gp_brush_grab_calc_dvec(tGP_BrushEditData *gso)
 
 /* Apply grab transform to all relevant points of the affected strokes */
 static void gp_brush_grab_apply_cached(
-        tGP_BrushEditData *gso, bGPDstroke *gps, bool parented, float diff_mat[4][4])
+        tGP_BrushEditData *gso, bGPDstroke *gps, float diff_mat[4][4])
 {
 	tGPSB_Grab_StrokeData *data = BLI_ghash_lookup(gso->stroke_customdata, gps);
 	int i;
@@ -443,23 +512,21 @@ static void gp_brush_grab_apply_cached(
 
 		/* adjust the amount of displacement to apply */
 		mul_v3_v3fl(delta, gso->dvec, data->weights[i]);
-		if (!parented) {
-			/* apply */
-			add_v3_v3(&pt->x, delta);
-		}
-		else {
-			float fpt[3];
-			/* apply transformation */
-			mul_v3_m4v3(fpt, diff_mat, &pt->x);
-			/* apply */
-			add_v3_v3(fpt, delta);
-			copy_v3_v3(&pt->x, fpt);
-			/* undo transformation to the init parent position */
-			float inverse_diff_mat[4][4];
-			invert_m4_m4(inverse_diff_mat, diff_mat);
-			mul_m4_v3(inverse_diff_mat, &pt->x);
-		}
 
+		float fpt[3];
+		float save_pt[3];
+		copy_v3_v3(save_pt, &pt->x);
+		/* apply transformation */
+		mul_v3_m4v3(fpt, diff_mat, &pt->x);
+		/* apply */
+		add_v3_v3v3(&pt->x, fpt, delta);
+		/* undo transformation to the init parent position */
+		float inverse_diff_mat[4][4];
+		invert_m4_m4(inverse_diff_mat, diff_mat);
+		mul_m4_v3(inverse_diff_mat, &pt->x);
+
+		/* compute lock axis */
+		gpsculpt_compute_lock_axis(gso, pt, save_pt);
 	}
 }
 
@@ -480,10 +547,14 @@ static void gp_brush_grab_stroke_free(void *ptr)
 /* Push Brush */
 /* NOTE: Depends on gp_brush_grab_calc_dvec() */
 
-static bool gp_brush_push_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
-                                const int radius, const int co[2])
+static bool gp_brush_push_apply(
+        tGP_BrushEditData *gso, bGPDstroke *gps, int pt_index,
+        const int radius, const int co[2])
 {
-	bGPDspoint *pt = gps->points + i;
+	bGPDspoint *pt = gps->points + pt_index;
+	float save_pt[3];
+	copy_v3_v3(save_pt, &pt->x);
+
 	float inf = gp_brush_influence_calc(gso, radius, co);
 	float delta[3] = {0.0f};
 
@@ -493,6 +564,9 @@ static bool gp_brush_push_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
 	/* apply */
 	add_v3_v3(&pt->x, delta);
 
+	/* compute lock axis */
+	gpsculpt_compute_lock_axis(gso, pt, save_pt);
+
 	/* done */
 	return true;
 }
@@ -512,7 +586,8 @@ static void gp_brush_calc_midpoint(tGP_BrushEditData *gso)
 		float *rvec = ED_view3d_cursor3d_get(gso->scene, v3d)->location;
 		float zfac = ED_view3d_calc_zfac(rv3d, rvec, NULL);
 
-		float mval_f[2] = {UNPACK2(gso->mval)};
+		float mval_f[2];
+		copy_v2fl_v2i(mval_f, gso->mval);
 		float mval_prj[2];
 		float dvec[3];
 
@@ -536,12 +611,15 @@ static void gp_brush_calc_midpoint(tGP_BrushEditData *gso)
 }
 
 /* Shrink distance between midpoint and this point... */
-static bool gp_brush_pinch_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
-                                 const int radius, const int co[2])
+static bool gp_brush_pinch_apply(
+        tGP_BrushEditData *gso, bGPDstroke *gps, int pt_index,
+        const int radius, const int co[2])
 {
-	bGPDspoint *pt = gps->points + i;
+	bGPDspoint *pt = gps->points + pt_index;
 	float fac, inf;
 	float vec[3];
+	float save_pt[3];
+	copy_v3_v3(save_pt, &pt->x);
 
 	/* Scale down standard influence value to get it more manageable...
 	 *  - No damping = Unmanageable at > 0.5 strength
@@ -571,6 +649,9 @@ static bool gp_brush_pinch_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
 	/* 3) Translate back to original space, with the shrinkage applied */
 	add_v3_v3v3(&pt->x, gso->dvec, vec);
 
+	/* compute lock axis */
+	gpsculpt_compute_lock_axis(gso, pt, save_pt);
+
 	/* done */
 	return true;
 }
@@ -582,11 +663,14 @@ static bool gp_brush_pinch_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
  * convert the rotated point and convert it into "data" space
  */
 
-static bool gp_brush_twist_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
-                                 const int radius, const int co[2])
+static bool gp_brush_twist_apply(
+        tGP_BrushEditData *gso, bGPDstroke *gps, int pt_index,
+        const int radius, const int co[2])
 {
-	bGPDspoint *pt = gps->points + i;
+	bGPDspoint *pt = gps->points + pt_index;
 	float angle, inf;
+	float save_pt[3];
+	copy_v3_v3(save_pt, &pt->x);
 
 	/* Angle to rotate by */
 	inf = gp_brush_influence_calc(gso, radius, co);
@@ -615,6 +699,9 @@ static bool gp_brush_twist_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
 		sub_v3_v3v3(vec, &pt->x, gso->dvec); /* make relative to center (center is stored in dvec) */
 		mul_m3_v3(rmat, vec);
 		add_v3_v3v3(&pt->x, vec, gso->dvec); /* restore */
+
+		/* compute lock axis */
+		gpsculpt_compute_lock_axis(gso, pt, save_pt);
 	}
 	else {
 		const float axis[3] = {0.0f, 0.0f, 1.0f};
@@ -654,10 +741,13 @@ static bool gp_brush_twist_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
 /* Randomize Brush */
 
 /* Apply some random jitter to the point */
-static bool gp_brush_randomize_apply(tGP_BrushEditData *gso, bGPDstroke *gps, int i,
-                                     const int radius, const int co[2])
+static bool gp_brush_randomize_apply(
+        tGP_BrushEditData *gso, bGPDstroke *gps, int pt_index,
+        const int radius, const int co[2])
 {
-	bGPDspoint *pt = gps->points + i;
+	bGPDspoint *pt = gps->points + pt_index;
+	float save_pt[3];
+	copy_v3_v3(save_pt, &pt->x);
 
 	/* Amount of jitter to apply depends on the distance of the point to the cursor,
 	 * as well as the strength of the brush
@@ -665,9 +755,11 @@ static bool gp_brush_randomize_apply(tGP_BrushEditData *gso, bGPDstroke *gps, in
 	const float inf = gp_brush_influence_calc(gso, radius, co) / 2.0f;
 	const float fac = BLI_rng_get_float(gso->rng) * inf;
 	/* need one flag enabled by default */
-	if ((gso->settings->flag & (GP_BRUSHEDIT_FLAG_APPLY_POSITION |
-	                            GP_BRUSHEDIT_FLAG_APPLY_STRENGTH |
-	                            GP_BRUSHEDIT_FLAG_APPLY_THICKNESS)) == 0)
+	if ((gso->settings->flag &
+	     (GP_BRUSHEDIT_FLAG_APPLY_POSITION |
+	      GP_BRUSHEDIT_FLAG_APPLY_STRENGTH |
+	      GP_BRUSHEDIT_FLAG_APPLY_THICKNESS |
+	      GP_BRUSHEDIT_FLAG_APPLY_UV)) == 0)
 	{
 		gso->settings->flag |= GP_BRUSHEDIT_FLAG_APPLY_POSITION;
 	}
@@ -710,6 +802,8 @@ static bool gp_brush_randomize_apply(tGP_BrushEditData *gso, bGPDstroke *gps, in
 					float dvec[3];
 					ED_view3d_win_to_delta(gso->gsc.ar, svec, dvec, zfac);
 					add_v3_v3(&pt->x, dvec);
+					/* compute lock axis */
+					gpsculpt_compute_lock_axis(gso, pt, save_pt);
 				}
 			}
 			else {
@@ -749,11 +843,76 @@ static bool gp_brush_randomize_apply(tGP_BrushEditData *gso, bGPDstroke *gps, in
 		/* only limit lower value */
 		CLAMP_MIN(pt->pressure, 0.0f);
 	}
+	/* apply random to UV (use pressure) */
+	if (gso->settings->flag & GP_BRUSHEDIT_FLAG_APPLY_UV) {
+		if (BLI_rng_get_float(gso->rng) > 0.5f) {
+			pt->uv_rot += fac;
+		}
+		else {
+			pt->uv_rot -= fac;
+		}
+		CLAMP(pt->uv_rot, -M_PI_2, M_PI_2);
+	}
 
 	/* done */
 	return true;
 }
 
+/* Weight Paint Brush */
+
+/* Change weight paint for vertex groups */
+static bool gp_brush_weight_apply(
+        tGP_BrushEditData *gso, bGPDstroke *gps, int pt_index,
+        const int radius, const int co[2])
+{
+	bGPDspoint *pt = gps->points + pt_index;
+	MDeformVert *dvert = gps->dvert + pt_index;
+	float inf;
+
+	/* Compute strength of effect
+	* - We divide the strength by 10, so that users can set "sane" values.
+	*   Otherwise, good default values are in the range of 0.093
+	*/
+	inf = gp_brush_influence_calc(gso, radius, co) / 10.0f;
+
+	/* need a vertex group */
+	if (gso->vrgroup == -1) {
+		if (gso->object) {
+			BKE_object_defgroup_add(gso->object);
+			gso->vrgroup = 0;
+		}
+	}
+	/* get current weight */
+	float curweight = 0.0f;
+	for (int i = 0; i < dvert->totweight; i++) {
+		MDeformWeight *gpw = &dvert->dw[i];
+		if (gpw->def_nr == gso->vrgroup) {
+			curweight = gpw->weight;
+			break;
+		}
+	}
+
+	if (gp_brush_invert_check(gso)) {
+		/* reduce weight */
+		curweight -= inf;
+	}
+	else {
+		/* increase weight */
+		curweight += inf;
+	}
+
+	CLAMP(curweight, 0.0f, 1.0f);
+	BKE_gpencil_vgroup_add_point_weight(dvert, gso->vrgroup, curweight);
+
+	/* weight should stay within [0.0, 1.0]	*/
+	if (pt->pressure < 0.0f)
+		pt->pressure = 0.0f;
+
+	return true;
+}
+
+
+
 /* ************************************************ */
 /* Non Callback-Based Brushes */
 
@@ -827,7 +986,7 @@ static void gp_brush_clone_init(bContext *C, tGP_BrushEditData *gso)
 	/* Init colormap for mapping between the pasted stroke's source colour(names)
 	 * and the final colours that will be used here instead...
 	 */
-	data->new_colors = gp_copybuf_validate_colormap(gso->gpd);
+	data->new_colors = gp_copybuf_validate_colormap(C);
 }
 
 /* Free custom data used for "clone" brush */
@@ -857,9 +1016,12 @@ static void gp_brush_clone_add(bContext *C, tGP_BrushEditData *gso)
 {
 	tGPSB_CloneBrushData *data = gso->customdata;
 
-	Scene *scene = gso->scene;
+	Object *ob = CTX_data_active_object(C);
 	bGPDlayer *gpl = CTX_data_active_gpencil_layer(C);
-	bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, CFRA, true);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+
+	bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, cfra_eval, true);
 	bGPDstroke *gps;
 
 	float delta[3];
@@ -882,17 +1044,22 @@ static void gp_brush_clone_add(bContext *C, tGP_BrushEditData *gso)
 			new_stroke = MEM_dupallocN(gps);
 
 			new_stroke->points = MEM_dupallocN(gps->points);
+			new_stroke->dvert = MEM_dupallocN(gps->dvert);
+			BKE_gpencil_stroke_weights_duplicate(gps, new_stroke);
 			new_stroke->triangles = MEM_dupallocN(gps->triangles);
 
 			new_stroke->next = new_stroke->prev = NULL;
 			BLI_addtail(&gpf->strokes, new_stroke);
 
 			/* Fix color references */
-			BLI_assert(new_stroke->colorname[0] != '\0');
-			new_stroke->palcolor = BLI_ghash_lookup(data->new_colors, new_stroke->colorname);
-
-			BLI_assert(new_stroke->palcolor != NULL);
-			BLI_strncpy(new_stroke->colorname, new_stroke->palcolor->info, sizeof(new_stroke->colorname));
+			Material *ma = BLI_ghash_lookup(data->new_colors, &new_stroke->mat_nr);
+			if ((ma) && (BKE_gpencil_get_material_index(ob, ma) > 0)) {
+				gps->mat_nr = BKE_gpencil_get_material_index(ob, ma) - 1;
+				CLAMP_MIN(gps->mat_nr, 0);
+			}
+			else {
+				gps->mat_nr = 0; /* only if the color is not found */
+			}
 
 			/* Adjust all the stroke's points, so that the strokes
 			 * get pasted relative to where the cursor is now
@@ -977,57 +1144,6 @@ static bool gpsculpt_brush_apply_clone(bContext *C, tGP_BrushEditData *gso)
 }
 
 /* ************************************************ */
-/* Cursor drawing */
-
-/* Helper callback for drawing the cursor itself */
-static void gp_brush_drawcursor(bContext *C, int x, int y, void *UNUSED(customdata))
-{
-	GP_EditBrush_Data *brush = gpsculpt_get_brush(CTX_data_scene(C));
-
-	if (brush) {
-		Gwn_VertFormat *format = immVertexFormat();
-		uint pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
-		immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
-
-		GPU_line_smooth(true);
-		GPU_blend(true);
-
-		/* Inner Ring: Light color for action of the brush */
-		/* TODO: toggle between add and remove? */
-		immUniformColor4ub(255, 255, 255, 200);
-		imm_draw_circle_wire_2d(pos, x, y, brush->size, 40);
-
-		/* Outer Ring: Dark color for contrast on light backgrounds (e.g. gray on white) */
-		immUniformColor3ub(30, 30, 30);
-		imm_draw_circle_wire_2d(pos, x, y, brush->size + 1, 40);
-
-		immUnbindProgram();
-
-		GPU_blend(false);
-		GPU_line_smooth(false);
-	}
-}
-
-/* Turn brush cursor in on/off */
-static void gpencil_toggle_brush_cursor(bContext *C, bool enable)
-{
-	GP_BrushEdit_Settings *gset = gpsculpt_get_settings(CTX_data_scene(C));
-
-	if (gset->paintcursor && !enable) {
-		/* clear cursor */
-		WM_paint_cursor_end(CTX_wm_manager(C), gset->paintcursor);
-		gset->paintcursor = NULL;
-	}
-	else if (enable) {
-		/* enable cursor */
-		gset->paintcursor = WM_paint_cursor_activate(CTX_wm_manager(C),
-		                                             NULL,
-		                                             gp_brush_drawcursor, NULL);
-	}
-}
-
-
-/* ************************************************ */
 /* Header Info for GPencil Sculpt */
 
 static void gpsculpt_brush_header_set(bContext *C, tGP_BrushEditData *gso)
@@ -1054,17 +1170,40 @@ static void gpsculpt_brush_header_set(bContext *C, tGP_BrushEditData *gso)
 static bool gpsculpt_brush_init(bContext *C, wmOperator *op)
 {
 	Scene *scene = CTX_data_scene(C);
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	Object *ob = CTX_data_active_object(C);
+
+	const bool is_weight_mode = ob->mode == OB_MODE_GPENCIL_WEIGHT;
+	/* set the brush using the tool */
+	GP_BrushEdit_Settings *gset = &ts->gp_sculpt;
+	eGP_EditBrush_Types mode = RNA_enum_get(op->ptr, "mode");
+	const bool keep_brush = RNA_boolean_get(op->ptr, "keep_brush");
+
+	if (!keep_brush) {
+		if (is_weight_mode) {
+			gset->weighttype = mode;
+		}
+		else {
+			gset->brushtype = mode;
+		}
+	}
 	tGP_BrushEditData *gso;
 
 	/* setup operator data */
 	gso = MEM_callocN(sizeof(tGP_BrushEditData), "tGP_BrushEditData");
 	op->customdata = gso;
 
+	gso->depsgraph = CTX_data_depsgraph(C);
 	/* store state */
 	gso->settings = gpsculpt_get_settings(scene);
-	gso->brush = gpsculpt_get_brush(scene);
+	gso->brush = gpsculpt_get_brush(scene, is_weight_mode);
 
-	gso->brush_type = gso->settings->brushtype;
+	if (is_weight_mode) {
+		gso->brush_type = gso->settings->weighttype;
+	}
+	else {
+		gso->brush_type = gso->settings->brushtype;
+	}
 
 	/* Random generator, only init once. */
 	uint rng_seed = (uint)(PIL_check_seconds_timer_i() & UINT_MAX);
@@ -1078,10 +1217,31 @@ static bool gpsculpt_brush_init(bContext *C, wmOperator *op)
 	gso->cfra = INT_MAX; /* NOTE: So that first stroke will get handled in init_stroke() */
 
 	gso->scene = scene;
+	gso->object = ob;
+	if (ob) {
+		gso->vrgroup = ob->actdef - 1;
+		if (!BLI_findlink(&ob->defbase, gso->vrgroup)) {
+			gso->vrgroup = -1;
+		}
+	}
+	else {
+		gso->vrgroup = - 1;
+	}
 
 	gso->sa = CTX_wm_area(C);
 	gso->ar = CTX_wm_region(C);
 
+	/* multiframe settings */
+	gso->is_multiframe = (bool)GPENCIL_MULTIEDIT_SESSIONS_ON(gso->gpd);
+	gso->use_multiframe_falloff = (ts->gp_sculpt.flag & GP_BRUSHEDIT_FLAG_FRAME_FALLOFF) != 0;
+
+	/* init multiedit falloff curve data before doing anything,
+	 * so we won't have to do it again later
+	 */
+	if (gso->is_multiframe) {
+		curvemapping_initialize(ts->gp_sculpt.cur_falloff);
+	}
+
 	/* initialise custom data for brushes */
 	switch (gso->brush_type) {
 		case GP_EDITBRUSH_TYPE_CLONE:
@@ -1133,9 +1293,10 @@ static bool gpsculpt_brush_init(bContext *C, wmOperator *op)
 	gpsculpt_brush_header_set(C, gso);
 
 	/* setup cursor drawing */
-	WM_cursor_modal_set(CTX_wm_window(C), BC_CROSSCURSOR);
-	gpencil_toggle_brush_cursor(C, true);
-
+	//WM_cursor_modal_set(CTX_wm_window(C), BC_CROSSCURSOR);
+	if (gso->sa->spacetype != SPACE_VIEW3D) {
+		ED_gpencil_toggle_brush_cursor(C, true, NULL);
+	}
 	return true;
 }
 
@@ -1179,7 +1340,12 @@ static void gpsculpt_brush_exit(bContext *C, wmOperator *op)
 	/* disable cursor and headerprints */
 	ED_workspace_status_text(C, NULL);
 	WM_cursor_modal_restore(win);
-	gpencil_toggle_brush_cursor(C, false);
+	if (gso->sa->spacetype != SPACE_VIEW3D) {
+		ED_gpencil_toggle_brush_cursor(C, false, NULL);
+	}
+
+	/* disable temp invert flag */
+	gso->brush->flag &= ~GP_EDITBRUSH_FLAG_TMP_INVERT;
 
 	/* free operator data */
 	MEM_freeN(gso);
@@ -1197,13 +1363,13 @@ static bool gpsculpt_brush_poll(bContext *C)
 
 static void gpsculpt_brush_init_stroke(tGP_BrushEditData *gso)
 {
-	Scene *scene = gso->scene;
 	bGPdata *gpd = gso->gpd;
+
 	bGPDlayer *gpl;
-	int cfra = CFRA;
+	int cfra_eval = (int)DEG_get_ctime(gso->depsgraph);
 
 	/* only try to add a new frame if this is the first stroke, or the frame has changed */
-	if ((gpd == NULL) || (cfra == gso->cfra))
+	if ((gpd == NULL) || (cfra_eval == gso->cfra))
 		return;
 
 	/* go through each layer, and ensure that we've got a valid frame to use */
@@ -1217,21 +1383,21 @@ static void gpsculpt_brush_init_stroke(tGP_BrushEditData *gso)
 			 *   spent too much time editing the wrong frame...
 			 */
 			// XXX: should this be allowed when framelock is enabled?
-			if (gpf->framenum != cfra) {
-				BKE_gpencil_frame_addcopy(gpl, cfra);
+			if (gpf->framenum != cfra_eval) {
+				BKE_gpencil_frame_addcopy(gpl, cfra_eval);
 			}
 		}
 	}
 
 	/* save off new current frame, so that next update works fine */
-	gso->cfra = cfra;
+	gso->cfra = cfra_eval;
 }
 
 /* Apply ----------------------------------------------- */
 
 /* Apply brush operation to points in this stroke */
 static bool gpsculpt_brush_do_stroke(
-        tGP_BrushEditData *gso, bGPDstroke *gps, bool parented,
+        tGP_BrushEditData *gso, bGPDstroke *gps,
         float diff_mat[4][4], GP_BrushApplyCb apply)
 {
 	GP_SpaceConversion *gsc = &gso->gsc;
@@ -1246,14 +1412,9 @@ static bool gpsculpt_brush_do_stroke(
 	bool changed = false;
 
 	if (gps->totpoints == 1) {
-		if (!parented) {
-			gp_point_to_xy(gsc, gps, gps->points, &pc1[0], &pc1[1]);
-		}
-		else {
-			bGPDspoint pt_temp;
-			gp_point_to_parent_space(gps->points, diff_mat, &pt_temp);
-			gp_point_to_xy(gsc, gps, &pt_temp, &pc1[0], &pc1[1]);
-		}
+		bGPDspoint pt_temp;
+		gp_point_to_parent_space(gps->points, diff_mat, &pt_temp);
+		gp_point_to_xy(gsc, gps, &pt_temp, &pc1[0], &pc1[1]);
 
 		/* do boundbox check first */
 		if ((!ELEM(V2D_IS_CLIPPED, pc1[0], pc1[1])) && BLI_rcti_isect_pt(rect, pc1[0], pc1[1])) {
@@ -1280,19 +1441,12 @@ static bool gpsculpt_brush_do_stroke(
 					continue;
 				}
 			}
-			if (!parented) {
-				gp_point_to_xy(gsc, gps, pt1, &pc1[0], &pc1[1]);
-				gp_point_to_xy(gsc, gps, pt2, &pc2[0], &pc2[1]);
-			}
-			else {
-				bGPDspoint npt;
-				gp_point_to_parent_space(pt1, diff_mat, &npt);
-				gp_point_to_xy(gsc, gps, &npt, &pc1[0], &pc1[1]);
-
-				gp_point_to_parent_space(pt2, diff_mat, &npt);
-				gp_point_to_xy(gsc, gps, &npt, &pc2[0], &pc2[1]);
-			}
+			bGPDspoint npt;
+			gp_point_to_parent_space(pt1, diff_mat, &npt);
+			gp_point_to_xy(gsc, gps, &npt, &pc1[0], &pc1[1]);
 
+			gp_point_to_parent_space(pt2, diff_mat, &npt);
+			gp_point_to_xy(gsc, gps, &npt, &pc2[0], &pc2[1]);
 
 			/* Check that point segment of the boundbox of the selection stroke */
 			if (((!ELEM(V2D_IS_CLIPPED, pc1[0], pc1[1])) && BLI_rcti_isect_pt(rect, pc1[0], pc1[1])) ||
@@ -1342,9 +1496,114 @@ static bool gpsculpt_brush_do_stroke(
 	return changed;
 }
 
+/* Apply sculpt brushes to strokes in the given frame */
+static bool gpsculpt_brush_do_frame(
+        bContext *C, tGP_BrushEditData *gso,
+        bGPDlayer *gpl, bGPDframe *gpf,
+        float diff_mat[4][4])
+{
+	bool changed = false;
+	Object *ob = CTX_data_active_object(C);
+
+	for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
+		/* skip strokes that are invalid for current view */
+		if (ED_gpencil_stroke_can_use(C, gps) == false) {
+			continue;
+		}
+		/* check if the color is editable */
+		if (ED_gpencil_stroke_color_use(ob, gpl, gps) == false) {
+			continue;
+		}
+
+		switch (gso->brush_type) {
+			case GP_EDITBRUSH_TYPE_SMOOTH: /* Smooth strokes */
+			{
+				changed |= gpsculpt_brush_do_stroke(gso, gps, diff_mat, gp_brush_smooth_apply);
+				break;
+			}
+
+			case GP_EDITBRUSH_TYPE_THICKNESS: /* Adjust stroke thickness */
+			{
+				changed |= gpsculpt_brush_do_stroke(gso, gps, diff_mat, gp_brush_thickness_apply);
+				break;
+			}
+
+			case GP_EDITBRUSH_TYPE_STRENGTH: /* Adjust stroke color strength */
+			{
+				changed |= gpsculpt_brush_do_stroke(gso, gps, diff_mat, gp_brush_strength_apply);
+				break;
+			}
+
+			case GP_EDITBRUSH_TYPE_GRAB: /* Grab points */
+			{
+				if (gso->first) {
+					/* First time this brush stroke is being applied:
+					 * 1) Prepare data buffers (init/clear) for this stroke
+					 * 2) Use the points now under the cursor
+					 */
+					gp_brush_grab_stroke_init(gso, gps);
+					changed |= gpsculpt_brush_do_stroke(gso, gps, diff_mat, gp_brush_grab_store_points);
+				}
+				else {
+					/* Apply effect to the stored points */
+					gp_brush_grab_apply_cached(gso, gps, diff_mat);
+					changed |= true;
+				}
+				break;
+			}
+
+			case GP_EDITBRUSH_TYPE_PUSH: /* Push points */
+			{
+				changed |= gpsculpt_brush_do_stroke(gso, gps, diff_mat, gp_brush_push_apply);
+				break;
+			}
+
+			case GP_EDITBRUSH_TYPE_PINCH: /* Pinch points */
+			{
+				changed |= gpsculpt_brush_do_stroke(gso, gps, diff_mat, gp_brush_pinch_apply);
+				break;
+			}
+
+			case GP_EDITBRUSH_TYPE_TWIST: /* Twist points around midpoint */
+			{
+				changed |= gpsculpt_brush_do_stroke(gso, gps, diff_mat, gp_brush_twist_apply);
+				break;
+			}
+
+			case GP_EDITBRUSH_TYPE_RANDOMIZE: /* Apply jitter */
+			{
+				changed |= gpsculpt_brush_do_stroke(gso, gps, diff_mat, gp_brush_randomize_apply);
+				break;
+			}
+
+			case GP_EDITBRUSH_TYPE_WEIGHT: /* Adjust vertex group weight */
+			{
+				changed |= gpsculpt_brush_do_stroke(gso, gps, diff_mat, gp_brush_weight_apply);
+				break;
+			}
+
+
+			default:
+				printf("ERROR: Unknown type of GPencil Sculpt brush - %u\n", gso->brush_type);
+				break;
+		}
+		/* Triangulation must be calculated if changed */
+		if (changed) {
+			gps->flag |= GP_STROKE_RECALC_CACHES;
+			gps->tot_triangles = 0;
+		}
+	}
+
+	return changed;
+}
+
 /* Perform two-pass brushes which modify the existing strokes */
 static bool gpsculpt_brush_apply_standard(bContext *C, tGP_BrushEditData *gso)
 {
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);                                      \
+	Object *obact = gso->object;
+	bGPdata *gpd = gso->gpd;
 	bool changed = false;
 
 	/* Calculate brush-specific data which applies equally to all points */
@@ -1378,104 +1637,53 @@ static bool gpsculpt_brush_apply_standard(bContext *C, tGP_BrushEditData *gso)
 
 
 	/* Find visible strokes, and perform operations on those if hit */
-	float diff_mat[4][4];
-	bool parented = false;
-
 	CTX_DATA_BEGIN(C, bGPDlayer *, gpl, editable_gpencil_layers)
 	{
-		bGPDframe *gpf = gpl->actframe;
-		if (gpf == NULL)
+		/* If no active frame, don't do anything... */
+		if (gpl->actframe == NULL) {
 			continue;
-
-		/* calculate difference matrix if parent object */
-		if (gpl->parent != NULL) {
-			ED_gpencil_parent_location(gpl, diff_mat);
-			parented = true;
-		}
-		else {
-			parented = false;
 		}
 
-		for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
-			/* skip strokes that are invalid for current view */
-			if (ED_gpencil_stroke_can_use(C, gps) == false)
-				continue;
-			/* check if the color is editable */
-			if (ED_gpencil_stroke_color_use(gpl, gps) == false) {
-				continue;
-			}
+		/* calculate difference matrix */
+		float diff_mat[4][4];
+		ED_gpencil_parent_location(depsgraph, obact, gpd, gpl, diff_mat);
 
-			switch (gso->brush_type) {
-				case GP_EDITBRUSH_TYPE_SMOOTH: /* Smooth strokes */
-				{
-					changed |= gpsculpt_brush_do_stroke(gso, gps, parented, diff_mat, gp_brush_smooth_apply);
-					break;
-				}
-
-				case GP_EDITBRUSH_TYPE_THICKNESS: /* Adjust stroke thickness */
-				{
-					changed |= gpsculpt_brush_do_stroke(gso, gps, parented, diff_mat, gp_brush_thickness_apply);
-					break;
-				}
+		/* Active Frame or MultiFrame? */
+		if (gso->is_multiframe) {
+			/* init multiframe falloff options */
+			int f_init = 0;
+			int f_end = 0;
 
-				case GP_EDITBRUSH_TYPE_STRENGTH: /* Adjust stroke color strength */
-				{
-					changed |= gpsculpt_brush_do_stroke(gso, gps, parented, diff_mat, gp_brush_strength_apply);
-					break;
-				}
+			if (gso->use_multiframe_falloff) {
+				BKE_gpencil_get_range_selected(gpl, &f_init, &f_end);
+			}
 
-				case GP_EDITBRUSH_TYPE_GRAB: /* Grab points */
-				{
-					if (gso->first) {
-						/* First time this brush stroke is being applied:
-						 * 1) Prepare data buffers (init/clear) for this stroke
-						 * 2) Use the points now under the cursor
-						 */
-						gp_brush_grab_stroke_init(gso, gps);
-						changed |= gpsculpt_brush_do_stroke(gso, gps, parented, diff_mat, gp_brush_grab_store_points);
+			for (bGPDframe *gpf = gpl->frames.first; gpf; gpf = gpf->next) {
+				/* Always do active frame; Otherwise, only include selected frames */
+				if ((gpf == gpl->actframe) || (gpf->flag & GP_FRAME_SELECT)) {
+					/* compute multiframe falloff factor */
+					if (gso->use_multiframe_falloff) {
+						/* Faloff depends on distance to active frame (relative to the overall frame range) */
+						gso->mf_falloff = BKE_gpencil_multiframe_falloff_calc(
+						                    gpf, gpl->actframe->framenum,
+						                    f_init, f_end,
+						                    ts->gp_sculpt.cur_falloff);
 					}
 					else {
-						/* Apply effect to the stored points */
-						gp_brush_grab_apply_cached(gso, gps, parented, diff_mat);
-						changed |= true;
+						/* No falloff */
+						gso->mf_falloff = 1.0f;
 					}
-					break;
-				}
-
-				case GP_EDITBRUSH_TYPE_PUSH: /* Push points */
-				{
-					changed |= gpsculpt_brush_do_stroke(gso, gps, parented, diff_mat, gp_brush_push_apply);
-					break;
-				}
-
-				case GP_EDITBRUSH_TYPE_PINCH: /* Pinch points */
-				{
-					changed |= gpsculpt_brush_do_stroke(gso, gps, parented, diff_mat, gp_brush_pinch_apply);
-					break;
-				}
-
-				case GP_EDITBRUSH_TYPE_TWIST: /* Twist points around midpoint */
-				{
-					changed |= gpsculpt_brush_do_stroke(gso, gps, parented, diff_mat, gp_brush_twist_apply);
-					break;
-				}
 
-				case GP_EDITBRUSH_TYPE_RANDOMIZE: /* Apply jitter */
-				{
-					changed |= gpsculpt_brush_do_stroke(gso, gps, parented, diff_mat, gp_brush_randomize_apply);
-					break;
+					/* affect strokes in this frame */
+					changed |= gpsculpt_brush_do_frame(C, gso, gpl, gpf, diff_mat);
 				}
-
-				default:
-					printf("ERROR: Unknown type of GPencil Sculpt brush - %u\n", gso->brush_type);
-					break;
-			}
-			/* Triangulation must be calculated if changed */
-			if (changed) {
-				gps->flag |= GP_STROKE_RECALC_CACHES;
-				gps->tot_triangles = 0;
 			}
 		}
+		else {
+			/* Apply to active frame's strokes */
+			gso->mf_falloff = 1.0f;
+			changed |= gpsculpt_brush_do_frame(C, gso, gpl, gpl->actframe, diff_mat);
+		}
 	}
 	CTX_DATA_END;
 
@@ -1529,6 +1737,7 @@ static void gpsculpt_brush_apply(bContext *C, wmOperator *op, PointerRNA *itempt
 
 	/* Updates */
 	if (changed) {
+		DEG_id_tag_update(&gso->gpd->id, OB_RECALC_DATA);
 		WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 	}
 
@@ -1605,9 +1814,18 @@ static int gpsculpt_brush_invoke(bContext *C, wmOperator *op, const wmEvent *eve
 {
 	tGP_BrushEditData *gso = NULL;
 	const bool is_modal = RNA_boolean_get(op->ptr, "wait_for_input");
+	const bool is_playing = ED_screen_animation_playing(CTX_wm_manager(C)) != NULL;
 	bool needs_timer = false;
 	float brush_rate = 0.0f;
 
+	/* the operator cannot work while play animation */
+	if (is_playing) {
+		BKE_report(op->reports, RPT_ERROR,
+			"Cannot sculpt while play animation");
+
+		return OPERATOR_CANCELLED;
+	}
+
 	/* init painting data */
 	if (!gpsculpt_brush_init(C, op))
 		return OPERATOR_CANCELLED;
@@ -1832,7 +2050,7 @@ static int gpsculpt_brush_modal(bContext *C, wmOperator *op, const wmEvent *even
 			case DOWNARROWKEY:
 				return OPERATOR_PASS_THROUGH;
 
-			/* Camera/View Manipulations - Allowed */
+			/* Camera/View Gizmo's - Allowed */
 			/* (See rationale in gpencil_paint.c -> gpencil_draw_modal()) */
 			case PAD0:  case PAD1:  case PAD2:  case PAD3:  case PAD4:
 			case PAD5:  case PAD6:  case PAD7:  case PAD8:  case PAD9:
@@ -1852,6 +2070,7 @@ static int gpsculpt_brush_modal(bContext *C, wmOperator *op, const wmEvent *even
 
 	/* Redraw toolsettings (brush settings)? */
 	if (redraw_toolsettings) {
+		DEG_id_tag_update(&gso->gpd->id, OB_RECALC_DATA);
 		WM_event_add_notifier(C, NC_SCENE | ND_TOOLSETTINGS, NULL);
 	}
 
@@ -1860,6 +2079,19 @@ static int gpsculpt_brush_modal(bContext *C, wmOperator *op, const wmEvent *even
 
 
 /* Operator --------------------------------------------- */
+static const EnumPropertyItem prop_gpencil_sculpt_brush_items[] = {
+	{GP_EDITBRUSH_TYPE_SMOOTH, "SMOOTH", 0, "Smooth", "Smooth stroke points" },
+	{GP_EDITBRUSH_TYPE_THICKNESS, "THICKNESS", 0, "Thickness", "Adjust thickness of strokes" },
+	{GP_EDITBRUSH_TYPE_STRENGTH, "STRENGTH", 0, "Strength", "Adjust color strength of strokes" },
+	{GP_EDITBRUSH_TYPE_GRAB, "GRAB", 0, "Grab", "Translate the set of points initially within the brush circle" },
+	{GP_EDITBRUSH_TYPE_PUSH, "PUSH", 0, "Push", "Move points out of the way, as if combing them" },
+	{GP_EDITBRUSH_TYPE_TWIST, "TWIST", 0, "Twist", "Rotate points around the midpoint of the brush" },
+	{GP_EDITBRUSH_TYPE_PINCH, "PINCH", 0, "Pinch", "Pull points towards the midpoint of the brush" },
+	{GP_EDITBRUSH_TYPE_RANDOMIZE, "RANDOMIZE", 0, "Randomize", "Introduce jitter/randomness into strokes" },
+	{GP_EDITBRUSH_TYPE_CLONE, "CLONE", 0, "Clone", "Paste copies of the strokes stored on the clipboard" },
+	{GP_EDITBRUSH_TYPE_WEIGHT, "WEIGHT", 0, "Weight", "Weight Paint" },
+	{0, NULL, 0, NULL, NULL }
+};
 
 void GPENCIL_OT_brush_paint(wmOperatorType *ot)
 {
@@ -1879,13 +2111,20 @@ void GPENCIL_OT_brush_paint(wmOperatorType *ot)
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_BLOCKING;
 
 	/* properties */
+	ot->prop = RNA_def_enum(ot->srna, "mode", prop_gpencil_sculpt_brush_items, 0, "Mode", "Brush mode");
+	RNA_def_property_flag(ot->prop, PROP_HIDDEN | PROP_SKIP_SAVE);
+
 	PropertyRNA *prop;
 	prop = RNA_def_collection_runtime(ot->srna, "stroke", &RNA_OperatorStrokeElement, "Stroke", "");
 	RNA_def_property_flag(prop, PROP_HIDDEN | PROP_SKIP_SAVE);
 
 	prop = RNA_def_boolean(ot->srna, "wait_for_input", true, "Wait for Input",
 	                       "Enter a mini 'sculpt-mode' if enabled, otherwise, exit after drawing a single stroke");
-	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
+	RNA_def_property_flag(prop, PROP_HIDDEN | PROP_SKIP_SAVE);
+
+	prop = RNA_def_boolean(ot->srna, "keep_brush", false, "Keep Brush",
+		"Keep current brush activated");
+	RNA_def_property_flag(prop, PROP_HIDDEN | PROP_SKIP_SAVE);
 }
 
 /* ************************************************ */
diff --git a/source/blender/editors/gpencil/gpencil_convert.c b/source/blender/editors/gpencil/gpencil_convert.c
index ccdbcba71f9..f662e9b42be 100644
--- a/source/blender/editors/gpencil/gpencil_convert.c
+++ b/source/blender/editors/gpencil/gpencil_convert.c
@@ -56,7 +56,6 @@
 #include "DNA_space_types.h"
 #include "DNA_view3d_types.h"
 #include "DNA_gpencil_types.h"
-#include "DNA_workspace_types.h"
 
 #include "BKE_collection.h"
 #include "BKE_context.h"
@@ -74,6 +73,7 @@
 #include "BKE_tracking.h"
 
 #include "DEG_depsgraph.h"
+#include "DEG_depsgraph_query.h"
 
 #include "UI_interface.h"
 
@@ -149,28 +149,24 @@ static const EnumPropertyItem *rna_GPConvert_mode_items(bContext *UNUSED(C), Poi
  *	- assumes that the active space is the 3D-View
  */
 static void gp_strokepoint_convertcoords(
-        bContext *C, bGPDlayer *gpl, bGPDstroke *gps, bGPDspoint *source_pt,
+        bContext *C, bGPdata *gpd, bGPDlayer *gpl, bGPDstroke *gps, bGPDspoint *source_pt,
         float p3d[3], const rctf *subrect)
 {
 	Scene *scene = CTX_data_scene(C);
 	View3D *v3d = CTX_wm_view3d(C);
 	ARegion *ar = CTX_wm_region(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);                                      \
+	Object *obact = CTX_data_active_object(C);
 	bGPDspoint mypt, *pt;
 
 	float diff_mat[4][4];
 	pt = &mypt;
 
-	/* calculate difference matrix if parent object */
-	if (gpl->parent == NULL) {
-		copy_v3_v3(&pt->x, &source_pt->x);
-	}
-	else {
-		/* apply parent transform */
-		float fpt[3];
-		ED_gpencil_parent_location(gpl, diff_mat);
-		mul_v3_m4v3(fpt, diff_mat, &source_pt->x);
-		copy_v3_v3(&pt->x, fpt);
-	}
+	/* apply parent transform */
+	float fpt[3];
+	ED_gpencil_parent_location(depsgraph, obact, gpd, gpl, diff_mat);
+	mul_v3_m4v3(fpt, diff_mat, &source_pt->x);
+	copy_v3_v3(&pt->x, fpt);
 
 
 	if (gps->flag & GP_STROKE_3DSPACE) {
@@ -591,7 +587,7 @@ static void gp_stroke_to_path_add_point(tGpTimingData *gtd, BPoint *bp, const fl
 	}
 }
 
-static void gp_stroke_to_path(bContext *C, bGPDlayer *gpl, bGPDstroke *gps, Curve *cu, rctf *subrect, Nurb **curnu,
+static void gp_stroke_to_path(bContext *C, bGPdata *gpd, bGPDlayer *gpl, bGPDstroke *gps, Curve *cu, rctf *subrect, Nurb **curnu,
                               float minmax_weights[2], const float rad_fac, bool stitch, const bool add_start_point,
                               const bool add_end_point, tGpTimingData *gtd)
 {
@@ -655,7 +651,7 @@ static void gp_stroke_to_path(bContext *C, bGPDlayer *gpl, bGPDstroke *gps, Curv
 		bp = &nu->bp[old_nbp - 1];
 
 		/* First point */
-		gp_strokepoint_convertcoords(C, gpl, gps, gps->points, p, subrect);
+		gp_strokepoint_convertcoords(C, gpd, gpl, gps, gps->points, p, subrect);
 		if (prev_bp) {
 			interp_v3_v3v3(p1, bp->vec, prev_bp->vec, -GAP_DFAC);
 			if (do_gtd) {
@@ -676,7 +672,7 @@ static void gp_stroke_to_path(bContext *C, bGPDlayer *gpl, bGPDstroke *gps, Curv
 		/* Second point */
 		/* Note dt2 is always negative, which marks the gap. */
 		if (gps->totpoints > 1) {
-			gp_strokepoint_convertcoords(C, gpl, gps, gps->points + 1, next_p, subrect);
+			gp_strokepoint_convertcoords(C, gpd, gpl, gps, gps->points + 1, next_p, subrect);
 			interp_v3_v3v3(p2, p, next_p, -GAP_DFAC);
 			if (do_gtd) {
 				dt2 = interpf(gps->points[1].time, gps->points[0].time, -GAP_DFAC);
@@ -697,9 +693,9 @@ static void gp_stroke_to_path(bContext *C, bGPDlayer *gpl, bGPDstroke *gps, Curv
 		float p[3], next_p[3];
 		float dt = 0.0f;
 
-		gp_strokepoint_convertcoords(C, gpl, gps, gps->points, p, subrect);
+		gp_strokepoint_convertcoords(C, gpd, gpl, gps, gps->points, p, subrect);
 		if (gps->totpoints > 1) {
-			gp_strokepoint_convertcoords(C, gpl, gps, gps->points + 1, next_p, subrect);
+			gp_strokepoint_convertcoords(C, gpd, gpl, gps, gps->points + 1, next_p, subrect);
 			interp_v3_v3v3(p, p, next_p, -GAP_DFAC);
 			if (do_gtd) {
 				dt = interpf(gps->points[1].time, gps->points[0].time, -GAP_DFAC);
@@ -728,10 +724,10 @@ static void gp_stroke_to_path(bContext *C, bGPDlayer *gpl, bGPDstroke *gps, Curv
 	     i++, pt++, bp++)
 	{
 		float p[3];
-		float width = pt->pressure * (gps->thickness + gpl->thickness) * WIDTH_CORR_FAC;
+		float width = pt->pressure * (gps->thickness + gpl->line_change) * WIDTH_CORR_FAC;
 
 		/* get coordinates to add at */
-		gp_strokepoint_convertcoords(C, gpl, gps, pt, p, subrect);
+		gp_strokepoint_convertcoords(C, gpd, gpl, gps, pt, p, subrect);
 
 		gp_stroke_to_path_add_point(gtd, bp, p, (prev_bp) ? prev_bp->vec : p, do_gtd, gps->inittime, pt->time,
 		                            width, rad_fac, minmax_weights);
@@ -801,7 +797,7 @@ static void gp_stroke_to_bezier_add_point(tGpTimingData *gtd, BezTriple *bezt,
 	}
 }
 
-static void gp_stroke_to_bezier(bContext *C, bGPDlayer *gpl, bGPDstroke *gps, Curve *cu, rctf *subrect, Nurb **curnu,
+static void gp_stroke_to_bezier(bContext *C, bGPdata *gpd, bGPDlayer *gpl, bGPDstroke *gps, Curve *cu, rctf *subrect, Nurb **curnu,
                                 float minmax_weights[2], const float rad_fac, bool stitch, const bool add_start_point,
                                 const bool add_end_point, tGpTimingData *gtd)
 {
@@ -843,12 +839,12 @@ static void gp_stroke_to_bezier(bContext *C, bGPDlayer *gpl, bGPDstroke *gps, Cu
 	/* get initial coordinates */
 	pt = gps->points;
 	if (tot) {
-		gp_strokepoint_convertcoords(C, gpl, gps, pt, (stitch) ? p3d_prev : p3d_cur, subrect);
+		gp_strokepoint_convertcoords(C, gpd, gpl, gps, pt, (stitch) ? p3d_prev : p3d_cur, subrect);
 		if (tot > 1) {
-			gp_strokepoint_convertcoords(C, gpl, gps, pt + 1, (stitch) ? p3d_cur : p3d_next, subrect);
+			gp_strokepoint_convertcoords(C, gpd, gpl, gps, pt + 1, (stitch) ? p3d_cur : p3d_next, subrect);
 		}
 		if (stitch && tot > 2) {
-			gp_strokepoint_convertcoords(C, gpl, gps, pt + 2, p3d_next, subrect);
+			gp_strokepoint_convertcoords(C, gpd, gpl, gps, pt + 2, p3d_next, subrect);
 		}
 	}
 
@@ -967,7 +963,7 @@ static void gp_stroke_to_bezier(bContext *C, bGPDlayer *gpl, bGPDstroke *gps, Cu
 
 	/* add points */
 	for (i = stitch ? 1 : 0, bezt = &nu->bezt[old_nbezt]; i < tot; i++, pt++, bezt++) {
-		float width = pt->pressure * (gps->thickness + gpl->thickness) * WIDTH_CORR_FAC;
+		float width = pt->pressure * (gps->thickness + gpl->line_change) * WIDTH_CORR_FAC;
 
 		if (i || old_nbezt) {
 			interp_v3_v3v3(h1, p3d_cur, p3d_prev, BEZT_HANDLE_FAC);
@@ -991,7 +987,7 @@ static void gp_stroke_to_bezier(bContext *C, bGPDlayer *gpl, bGPDstroke *gps, Cu
 		copy_v3_v3(p3d_cur, p3d_next);
 
 		if (i + 2 < tot) {
-			gp_strokepoint_convertcoords(C, gpl, gps, pt + 2, p3d_next, subrect);
+			gp_strokepoint_convertcoords(C, gpd, gpl, gps, pt + 2, p3d_next, subrect);
 		}
 
 		prev_bezt = bezt;
@@ -1130,10 +1126,12 @@ static void gp_layer_to_curve(bContext *C, ReportList *reports, bGPdata *gpd, bG
                               const bool norm_weights, const float rad_fac, const bool link_strokes, tGpTimingData *gtd)
 {
 	struct Main *bmain = CTX_data_main(C);
-	Scene *scene = CTX_data_scene(C);
 	ViewLayer *view_layer = CTX_data_view_layer(C);
 	Collection *collection = CTX_data_collection(C);
-	bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, CFRA, 0);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+
+	bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, cfra_eval, 0);
 	bGPDstroke *gps, *prev_gps = NULL;
 	Object *ob;
 	Curve *cu;
@@ -1192,12 +1190,12 @@ static void gp_layer_to_curve(bContext *C, ReportList *reports, bGPdata *gpd, bG
 
 		switch (mode) {
 			case GP_STROKECONVERT_PATH:
-				gp_stroke_to_path(C, gpl, gps, cu, subrect_ptr, &nu, minmax_weights, rad_fac, stitch,
+				gp_stroke_to_path(C, gpd, gpl, gps, cu, subrect_ptr, &nu, minmax_weights, rad_fac, stitch,
 				                  add_start_point, add_end_point, gtd);
 				break;
 			case GP_STROKECONVERT_CURVE:
 			case GP_STROKECONVERT_POLY:  /* convert after */
-				gp_stroke_to_bezier(C, gpl, gps, cu, subrect_ptr, &nu, minmax_weights, rad_fac, stitch,
+				gp_stroke_to_bezier(C, gpd, gpl, gps, cu, subrect_ptr, &nu, minmax_weights, rad_fac, stitch,
 				                    add_start_point, add_end_point, gtd);
 				break;
 			default:
@@ -1238,7 +1236,9 @@ static void gp_layer_to_curve(bContext *C, ReportList *reports, bGPdata *gpd, bG
  */
 static bool gp_convert_check_has_valid_timing(bContext *C, bGPDlayer *gpl, wmOperator *op)
 {
-	Scene *scene = CTX_data_scene(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+
 	bGPDframe *gpf = NULL;
 	bGPDstroke *gps = NULL;
 	bGPDspoint *pt;
@@ -1246,7 +1246,7 @@ static bool gp_convert_check_has_valid_timing(bContext *C, bGPDlayer *gpl, wmOpe
 	int i;
 	bool valid = true;
 
-	if (!gpl || !(gpf = BKE_gpencil_layer_getframe(gpl, CFRA, 0)) || !(gps = gpf->strokes.first))
+	if (!gpl || !(gpf = BKE_gpencil_layer_getframe(gpl, cfra_eval, 0)) || !(gps = gpf->strokes.first))
 		return false;
 
 	do {
@@ -1294,10 +1294,12 @@ static void gp_convert_set_end_frame(struct Main *UNUSED(main), struct Scene *UN
 static bool gp_convert_poll(bContext *C)
 {
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+
 	bGPDlayer *gpl = NULL;
 	bGPDframe *gpf = NULL;
 	ScrArea *sa = CTX_wm_area(C);
-	Scene *scene = CTX_data_scene(C);
 	ViewLayer *view_layer = CTX_data_view_layer(C);
 
 	/* only if the current view is 3D View, if there's valid data (i.e. at least one stroke!),
@@ -1305,7 +1307,7 @@ static bool gp_convert_poll(bContext *C)
 	 */
 	return ((sa && sa->spacetype == SPACE_VIEW3D) &&
 	        (gpl = BKE_gpencil_layer_getactive(gpd)) &&
-	        (gpf = BKE_gpencil_layer_getframe(gpl, CFRA, 0)) &&
+	        (gpf = BKE_gpencil_layer_getframe(gpl, cfra_eval, 0)) &&
 	        (gpf->strokes.first) &&
 	        (OBEDIT_FROM_VIEW_LAYER(view_layer) == NULL));
 }
@@ -1382,8 +1384,9 @@ static int gp_convert_layer_exec(bContext *C, wmOperator *op)
 	return OPERATOR_FINISHED;
 }
 
-static bool gp_convert_draw_check_prop(PointerRNA *ptr, PropertyRNA *prop)
+static bool gp_convert_poll_property(const bContext *UNUSED(C), wmOperator *op, const PropertyRNA *prop)
 {
+	PointerRNA *ptr = op->ptr;
 	const char *prop_id = RNA_property_identifier(prop);
 	const bool link_strokes = RNA_boolean_get(ptr, "use_link_strokes");
 	int timing_mode = RNA_enum_get(ptr, "timing_mode");
@@ -1446,18 +1449,6 @@ static bool gp_convert_draw_check_prop(PointerRNA *ptr, PropertyRNA *prop)
 	return false;
 }
 
-static void gp_convert_ui(bContext *C, wmOperator *op)
-{
-	uiLayout *layout = op->layout;
-	wmWindowManager *wm = CTX_wm_manager(C);
-	PointerRNA ptr;
-
-	RNA_pointer_create(&wm->id, op->type->srna, op->properties, &ptr);
-
-	/* Main auto-draw call */
-	uiDefAutoButsRNA(layout, &ptr, gp_convert_draw_check_prop, UI_BUT_LABEL_ALIGN_NONE, false);
-}
-
 void GPENCIL_OT_convert(wmOperatorType *ot)
 {
 	PropertyRNA *prop;
@@ -1471,7 +1462,7 @@ void GPENCIL_OT_convert(wmOperatorType *ot)
 	ot->invoke = WM_menu_invoke;
 	ot->exec = gp_convert_layer_exec;
 	ot->poll = gp_convert_poll;
-	ot->ui = gp_convert_ui;
+	ot->poll_property = gp_convert_poll_property;
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
diff --git a/source/blender/editors/gpencil/gpencil_data.c b/source/blender/editors/gpencil/gpencil_data.c
index c28fea0fc41..faeee4db169 100644
--- a/source/blender/editors/gpencil/gpencil_data.c
+++ b/source/blender/editors/gpencil/gpencil_data.c
@@ -46,18 +46,31 @@
 
 #include "BLT_translation.h"
 
+#include "DNA_anim_types.h"
+#include "DNA_brush_types.h"
+#include "DNA_gpencil_types.h"
+#include "DNA_meshdata_types.h"
+#include "DNA_modifier_types.h"
+#include "DNA_object_types.h"
 #include "DNA_scene_types.h"
 #include "DNA_screen_types.h"
 #include "DNA_space_types.h"
 #include "DNA_view3d_types.h"
-#include "DNA_gpencil_types.h"
 
-#include "BKE_colortools.h"
+#include "BKE_main.h"
+#include "BKE_brush.h"
+#include "BKE_animsys.h"
 #include "BKE_context.h"
+#include "BKE_deform.h"
+#include "BKE_fcurve.h"
+#include "BKE_global.h"
 #include "BKE_gpencil.h"
+#include "BKE_gpencil_modifier.h"
 #include "BKE_library.h"
-#include "BKE_main.h"
+#include "BKE_modifier.h"
 #include "BKE_object.h"
+#include "BKE_material.h"
+#include "BKE_paint.h"
 #include "BKE_report.h"
 #include "BKE_scene.h"
 #include "BKE_screen.h"
@@ -72,8 +85,13 @@
 #include "RNA_define.h"
 #include "RNA_enum_types.h"
 
+#include "ED_object.h"
 #include "ED_gpencil.h"
 
+#include "DEG_depsgraph.h"
+#include "DEG_depsgraph_build.h"
+#include "DEG_depsgraph_query.h"
+
 #include "gpencil_intern.h"
 
 /* ************************************************ */
@@ -84,9 +102,9 @@
 /* add new datablock - wrapper around API */
 static int gp_data_add_exec(bContext *C, wmOperator *op)
 {
-	Main *bmain = CTX_data_main(C);
-	bGPdata **gpd_ptr = ED_gpencil_data_get_pointers(C, NULL);
-	ToolSettings *ts = CTX_data_tool_settings(C);
+	PointerRNA gpd_owner = {{NULL}};
+	bGPdata **gpd_ptr = ED_gpencil_data_get_pointers(C, &gpd_owner);
+	bool is_annotation = ED_gpencil_data_owner_is_annotation(&gpd_owner);
 
 	if (gpd_ptr == NULL) {
 		BKE_report(op->reports, RPT_ERROR, "Nowhere for grease pencil data to go");
@@ -94,19 +112,36 @@ static int gp_data_add_exec(bContext *C, wmOperator *op)
 	}
 	else {
 		/* decrement user count and add new datablock */
-		bGPdata *gpd = (*gpd_ptr);
+		/* TODO: if a datablock exists, we should make a copy of it instead of starting fresh (as in other areas) */
+		Main *bmain = CTX_data_main(C);
 
-		id_us_min(&gpd->id);
-		*gpd_ptr = BKE_gpencil_data_addnew(bmain, DATA_("GPencil"));
+		/* decrement user count of old GP datablock */
+		if (*gpd_ptr) {
+			bGPdata *gpd = (*gpd_ptr);
+			id_us_min(&gpd->id);
+		}
 
-		/* if not exist brushes, create a new set */
-		if (ts) {
-			if (BLI_listbase_is_empty(&ts->gp_brushes)) {
-				/* create new brushes */
-				BKE_gpencil_brush_init_presets(ts);
-			}
+		/* add new datablock, with a single layer ready to use (so users don't have to perform an extra step) */
+		if (is_annotation) {
+			bGPdata *gpd = BKE_gpencil_data_addnew(bmain, DATA_("Annotations"));
+			*gpd_ptr = gpd;
+
+			/* tag for annotations */
+			gpd->flag |= GP_DATA_ANNOTATIONS;
+
+			/* add new layer (i.e. a "note") */
+			BKE_gpencil_layer_addnew(*gpd_ptr, DATA_("Note"), true);
 		}
+		else {
+			/* GP Object Case - This shouldn't happen! */
+			*gpd_ptr = BKE_gpencil_data_addnew(bmain, DATA_("GPencil"));
+
+			/* add default sets of colors and brushes */
+			ED_gpencil_add_defaults(C);
 
+			/* add new layer */
+			BKE_gpencil_layer_addnew(*gpd_ptr, DATA_("GP_Layer"), true);
+		}
 	}
 
 	/* notifiers */
@@ -185,28 +220,42 @@ void GPENCIL_OT_data_unlink(wmOperatorType *ot)
 /* add new layer - wrapper around API */
 static int gp_layer_add_exec(bContext *C, wmOperator *op)
 {
-	Main *bmain = CTX_data_main(C);
-	bGPdata **gpd_ptr = ED_gpencil_data_get_pointers(C, NULL);
-	ToolSettings *ts = CTX_data_tool_settings(C);
+	PointerRNA gpd_owner = {{NULL}};
+	bGPdata **gpd_ptr = ED_gpencil_data_get_pointers(C, &gpd_owner);
+	bool is_annotation = ED_gpencil_data_owner_is_annotation(&gpd_owner);
 
 	/* if there's no existing Grease-Pencil data there, add some */
 	if (gpd_ptr == NULL) {
 		BKE_report(op->reports, RPT_ERROR, "Nowhere for grease pencil data to go");
 		return OPERATOR_CANCELLED;
 	}
-	if (*gpd_ptr == NULL)
-		*gpd_ptr = BKE_gpencil_data_addnew(bmain, DATA_("GPencil"));
 
-	/* if not exist brushes, create a new set */
-	if (ts) {
-		if (BLI_listbase_is_empty(&ts->gp_brushes)) {
-			/* create new brushes */
-			BKE_gpencil_brush_init_presets(ts);
+	if (*gpd_ptr == NULL) {
+		Main *bmain = CTX_data_main(C);
+		if (is_annotation) {
+			/* Annotations */
+			*gpd_ptr = BKE_gpencil_data_addnew(bmain, DATA_("Annotations"));
+
+			/* mark as annotation */
+			(*gpd_ptr)->flag |= GP_DATA_ANNOTATIONS;
+		}
+		else {
+			/* GP Object */
+			/* NOTE: This shouldn't actually happen in practice */
+			*gpd_ptr = BKE_gpencil_data_addnew(bmain, DATA_("GPencil"));
+
+			/* add default sets of colors and brushes */
+			ED_gpencil_add_defaults(C);
 		}
 	}
 
 	/* add new layer now */
-	BKE_gpencil_layer_addnew(*gpd_ptr, DATA_("GP_Layer"), true);
+	if (is_annotation) {
+		BKE_gpencil_layer_addnew(*gpd_ptr, DATA_("Note"), true);
+	}
+	else {
+		BKE_gpencil_layer_addnew(*gpd_ptr, DATA_("GP_Layer"), true);
+	}
 
 	/* notifiers */
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
@@ -219,7 +268,7 @@ void GPENCIL_OT_layer_add(wmOperatorType *ot)
 	/* identifiers */
 	ot->name = "Add New Layer";
 	ot->idname = "GPENCIL_OT_layer_add";
-	ot->description = "Add new Grease Pencil layer for the active Grease Pencil data-block";
+	ot->description = "Add new layer or note for the active data-block";
 
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
@@ -257,6 +306,7 @@ static int gp_layer_remove_exec(bContext *C, wmOperator *op)
 	BKE_gpencil_layer_delete(gpd, gpl);
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -296,6 +346,7 @@ static int gp_layer_move_exec(bContext *C, wmOperator *op)
 
 	BLI_assert(ELEM(direction, -1, 0, 1)); /* we use value below */
 	if (BLI_listbase_link_move(&gpd->layers, gpl, direction)) {
+		DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 		WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 	}
 
@@ -346,6 +397,7 @@ static int gp_layer_copy_exec(bContext *C, wmOperator *UNUSED(op))
 	BKE_gpencil_layer_setactive(gpd, new_layer);
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -366,6 +418,153 @@ void GPENCIL_OT_layer_duplicate(wmOperatorType *ot)
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
 
+/* ********************* Duplicate Frame ************************** */
+enum {
+	GP_FRAME_DUP_ACTIVE = 0,
+	GP_FRAME_DUP_ALL = 1
+};
+
+static int gp_frame_duplicate_exec(bContext *C, wmOperator *op)
+{
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	bGPDlayer *gpl = BKE_gpencil_layer_getactive(gpd);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+
+	int mode = RNA_enum_get(op->ptr, "mode");
+
+	/* sanity checks */
+	if (ELEM(NULL, gpd, gpl))
+		return OPERATOR_CANCELLED;
+
+	if (mode == 0) {
+		BKE_gpencil_frame_addcopy(gpl, cfra_eval);
+	}
+	else {
+		for (gpl = gpd->layers.first; gpl; gpl = gpl->next) {
+			if ((gpl->flag & GP_LAYER_LOCKED) == 0) {
+				BKE_gpencil_frame_addcopy(gpl, cfra_eval);
+			}
+		}
+
+	}
+	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+
+	return OPERATOR_FINISHED;
+}
+
+void GPENCIL_OT_frame_duplicate(wmOperatorType *ot)
+{
+	static const EnumPropertyItem duplicate_mode[] = {
+		{ GP_FRAME_DUP_ACTIVE, "ACTIVE", 0, "Active", "Duplicate frame in active layer only" },
+		{ GP_FRAME_DUP_ALL, "ALL", 0, "All", "Duplicate active frames in all layers" },
+		{ 0, NULL, 0, NULL, NULL }
+	};
+
+	/* identifiers */
+	ot->name = "Duplicate Frame";
+	ot->idname = "GPENCIL_OT_frame_duplicate";
+	ot->description = "Make a copy of the active Grease Pencil Frame";
+
+	/* callbacks */
+	ot->exec = gp_frame_duplicate_exec;
+	ot->poll = gp_active_layer_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	ot->prop = RNA_def_enum(ot->srna, "mode", duplicate_mode, GP_FRAME_DUP_ACTIVE, "Mode", "");
+}
+
+/* ********************* Clean Fill Boundaries on Frame ************************** */
+enum {
+	GP_FRAME_CLEAN_FILL_ACTIVE = 0,
+	GP_FRAME_CLEAN_FILL_ALL = 1
+};
+
+static int gp_frame_clean_fill_exec(bContext *C, wmOperator *op)
+{
+	bool changed = false;
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	int mode = RNA_enum_get(op->ptr, "mode");
+
+	CTX_DATA_BEGIN(C, bGPDlayer *, gpl, editable_gpencil_layers)
+	{
+		bGPDframe *init_gpf = gpl->actframe;
+		if (mode == GP_FRAME_CLEAN_FILL_ALL) {
+			init_gpf = gpl->frames.first;
+		}
+
+		for (bGPDframe *gpf = init_gpf; gpf; gpf = gpf->next) {
+			if ((gpf == gpl->actframe) || (mode == GP_FRAME_CLEAN_FILL_ALL)) {
+				bGPDstroke *gps, *gpsn;
+
+				if (gpf == NULL)
+					continue;
+
+				/* simply delete strokes which are no fill */
+				for (gps = gpf->strokes.first; gps; gps = gpsn) {
+					gpsn = gps->next;
+
+					/* skip strokes that are invalid for current view */
+					if (ED_gpencil_stroke_can_use(C, gps) == false)
+						continue;
+
+					/* free stroke */
+					if (gps->flag & GP_STROKE_NOFILL) {
+						/* free stroke memory arrays, then stroke itself */
+						if (gps->points) {
+							MEM_freeN(gps->points);
+						}
+						if (gps->dvert) {
+							BKE_gpencil_free_stroke_weights(gps);
+							MEM_freeN(gps->dvert);
+						}
+						MEM_SAFE_FREE(gps->triangles);
+						BLI_freelinkN(&gpf->strokes, gps);
+
+						changed = true;
+					}
+				}
+			}
+		}
+	}
+	CTX_DATA_END;
+
+	/* notifiers */
+	if (changed) {
+		DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+		WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+	}
+
+	return OPERATOR_FINISHED;
+}
+
+void GPENCIL_OT_frame_clean_fill(wmOperatorType *ot)
+{
+	static const EnumPropertyItem duplicate_mode[] = {
+	{ GP_FRAME_CLEAN_FILL_ACTIVE, "ACTIVE", 0, "Active Frame Only", "Clean active frame only" },
+	{ GP_FRAME_CLEAN_FILL_ALL, "ALL", 0, "All Frames", "Clean all frames in all layers" },
+	{ 0, NULL, 0, NULL, NULL }
+	};
+
+	/* identifiers */
+	ot->name = "Clean Fill Boundaries";
+	ot->idname = "GPENCIL_OT_frame_clean_fill";
+	ot->description = "Remove 'no fill' boundary strokes";
+
+	/* callbacks */
+	ot->exec = gp_frame_clean_fill_exec;
+	ot->poll = gp_active_layer_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	ot->prop = RNA_def_enum(ot->srna, "mode", duplicate_mode, GP_FRAME_DUP_ACTIVE, "Mode", "");
+}
+
 /* *********************** Hide Layers ******************************** */
 
 static int gp_hide_exec(bContext *C, wmOperator *op)
@@ -394,6 +593,7 @@ static int gp_hide_exec(bContext *C, wmOperator *op)
 	}
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -481,6 +681,7 @@ static int gp_reveal_exec(bContext *C, wmOperator *op)
 	}
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -521,6 +722,7 @@ static int gp_lock_all_exec(bContext *C, wmOperator *UNUSED(op))
 	}
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -558,6 +760,7 @@ static int gp_unlock_all_exec(bContext *C, wmOperator *UNUSED(op))
 	}
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -630,6 +833,7 @@ static int gp_isolate_layer_exec(bContext *C, wmOperator *op)
 	}
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -673,22 +877,28 @@ static int gp_merge_layer_exec(bContext *C, wmOperator *op)
 		BLI_ghash_insert(gh_frames_cur, SET_INT_IN_POINTER(gpf->framenum), gpf);
 	}
 
-	/* read all frames from next layer */
+	/* read all frames from next layer and add any missing in current layer */
 	for (bGPDframe *gpf = gpl_next->frames.first; gpf; gpf = gpf->next) {
-		/* try to find frame in active layer */
+		/* try to find frame in current layer */
 		bGPDframe *frame = BLI_ghash_lookup(gh_frames_cur, SET_INT_IN_POINTER(gpf->framenum));
 		if (!frame) {
-			/* nothing found, create new */
+			bGPDframe *actframe = BKE_gpencil_layer_getframe(gpl_current, gpf->framenum, GP_GETFRAME_USE_PREV);
 			frame = BKE_gpencil_frame_addnew(gpl_current, gpf->framenum);
+			/* duplicate strokes of current active frame */
+			if (actframe) {
+				BKE_gpencil_frame_copy_strokes(actframe, frame);
+			}
 		}
 		/* add to tail all strokes */
 		BLI_movelisttolist(&frame->strokes, &gpf->strokes);
 	}
+
 	/* Now delete next layer */
 	BKE_gpencil_layer_delete(gpd, gpl_next);
 	BLI_ghash_free(gh_frames_cur, NULL, NULL);
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -750,6 +960,7 @@ static int gp_layer_change_exec(bContext *C, wmOperator *op)
 	BKE_gpencil_layer_setactive(gpd, gpl);
 
 	/* updates */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -788,6 +999,7 @@ enum {
 
 static int gp_stroke_arrange_exec(bContext *C, wmOperator *op)
 {
+	Object *ob = CTX_data_active_object(C);
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
 	bGPDlayer *gpl = BKE_gpencil_layer_getactive(gpd);
 	bGPDstroke *gps;
@@ -797,79 +1009,95 @@ static int gp_stroke_arrange_exec(bContext *C, wmOperator *op)
 		return OPERATOR_CANCELLED;
 	}
 
-	bGPDframe *gpf = gpl->actframe;
-	/* temp listbase to store selected strokes */
-	ListBase selected = {NULL};
 	const int direction = RNA_enum_get(op->ptr, "direction");
 
-	/* verify if any selected stroke is in the extreme of the stack and select to move */
-	for (gps = gpf->strokes.first; gps; gps = gps->next) {
-		/* only if selected */
-		if (gps->flag & GP_STROKE_SELECT) {
-			/* skip strokes that are invalid for current view */
-			if (ED_gpencil_stroke_can_use(C, gps) == false) {
-				continue;
-			}
-			/* check if the color is editable */
-			if (ED_gpencil_stroke_color_use(gpl, gps) == false) {
-				continue;
-			}
-			/* some stroke is already at front*/
-			if ((direction == GP_STROKE_MOVE_TOP) || (direction == GP_STROKE_MOVE_UP)) {
-				if (gps == gpf->strokes.last) {
-					return OPERATOR_CANCELLED;
+	for (gpl = gpd->layers.first; gpl; gpl = gpl->next) {
+		/* temp listbase to store selected strokes by layer */
+		ListBase selected = { NULL };
+		bGPDframe *gpf = gpl->actframe;
+		if (gpl->flag & GP_LAYER_LOCKED) {
+			continue;
+		}
+
+		if (gpf == NULL) {
+			continue;
+		}
+		bool gpf_lock = false;
+		/* verify if any selected stroke is in the extreme of the stack and select to move */
+		for (gps = gpf->strokes.first; gps; gps = gps->next) {
+			/* only if selected */
+			if (gps->flag & GP_STROKE_SELECT) {
+				/* skip strokes that are invalid for current view */
+				if (ED_gpencil_stroke_can_use(C, gps) == false) {
+					continue;
 				}
-			}
-			/* some stroke is already at botom */
-			if ((direction == GP_STROKE_MOVE_BOTTOM) || (direction == GP_STROKE_MOVE_DOWN)) {
-				if (gps == gpf->strokes.first) {
-					return OPERATOR_CANCELLED;
+				/* check if the color is editable */
+				if (ED_gpencil_stroke_color_use(ob, gpl, gps) == false) {
+					continue;
+				}
+				/* some stroke is already at front*/
+				if ((direction == GP_STROKE_MOVE_TOP) || (direction == GP_STROKE_MOVE_UP)) {
+					if (gps == gpf->strokes.last) {
+						gpf_lock = true;
+						continue;
+					}
+				}
+				/* some stroke is already at botom */
+				if ((direction == GP_STROKE_MOVE_BOTTOM) || (direction == GP_STROKE_MOVE_DOWN)) {
+					if (gps == gpf->strokes.first) {
+						gpf_lock = true;
+						continue;
+					}
+				}
+				/* add to list (if not locked) */
+				if (!gpf_lock) {
+					BLI_addtail(&selected, BLI_genericNodeN(gps));
 				}
 			}
-			/* add to list */
-			BLI_addtail(&selected, BLI_genericNodeN(gps));
 		}
-	}
-
-	/* Now do the movement of the stroke */
-	switch (direction) {
-		/* Bring to Front */
-		case GP_STROKE_MOVE_TOP:
-			for (LinkData *link = selected.first; link; link = link->next) {
-				gps = link->data;
-				BLI_remlink(&gpf->strokes, gps);
-				BLI_addtail(&gpf->strokes, gps);
-			}
-			break;
-		/* Bring Forward */
-		case GP_STROKE_MOVE_UP:
-			for (LinkData *link = selected.last; link; link = link->prev) {
-				gps = link->data;
-				BLI_listbase_link_move(&gpf->strokes, gps, 1);
-			}
-			break;
-		/* Send Backward */
-		case GP_STROKE_MOVE_DOWN:
-			for (LinkData *link = selected.first; link; link = link->next) {
-				gps = link->data;
-				BLI_listbase_link_move(&gpf->strokes, gps, -1);
-			}
-			break;
-		/* Send to Back */
-		case GP_STROKE_MOVE_BOTTOM:
-			for (LinkData *link = selected.last; link; link = link->prev) {
-				gps = link->data;
-				BLI_remlink(&gpf->strokes, gps);
-				BLI_addhead(&gpf->strokes, gps);
+		/* Now do the movement of the stroke */
+		if (!gpf_lock) {
+			switch (direction) {
+				/* Bring to Front */
+				case GP_STROKE_MOVE_TOP:
+					for (LinkData *link = selected.first; link; link = link->next) {
+						gps = link->data;
+						BLI_remlink(&gpf->strokes, gps);
+						BLI_addtail(&gpf->strokes, gps);
+					}
+					break;
+				/* Bring Forward */
+				case GP_STROKE_MOVE_UP:
+					for (LinkData *link = selected.last; link; link = link->prev) {
+						gps = link->data;
+						BLI_listbase_link_move(&gpf->strokes, gps, 1);
+					}
+					break;
+				/* Send Backward */
+				case GP_STROKE_MOVE_DOWN:
+					for (LinkData *link = selected.first; link; link = link->next) {
+						gps = link->data;
+						BLI_listbase_link_move(&gpf->strokes, gps, -1);
+					}
+					break;
+				/* Send to Back */
+				case GP_STROKE_MOVE_BOTTOM:
+					for (LinkData *link = selected.last; link; link = link->prev) {
+						gps = link->data;
+						BLI_remlink(&gpf->strokes, gps);
+						BLI_addhead(&gpf->strokes, gps);
+					}
+					break;
+				default:
+					BLI_assert(0);
+					break;
 			}
-			break;
-		default:
-			BLI_assert(0);
-			break;
+		}
+		BLI_freelistN(&selected);
 	}
-	BLI_freelistN(&selected);
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -890,58 +1118,87 @@ void GPENCIL_OT_stroke_arrange(wmOperatorType *ot)
 	ot->idname = "GPENCIL_OT_stroke_arrange";
 	ot->description = "Arrange selected strokes up/down in the drawing order of the active layer";
 
-	/* api callbacks */
+	/* callbacks */
 	ot->exec = gp_stroke_arrange_exec;
 	ot->poll = gp_active_layer_poll;
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
+	/* properties */
 	ot->prop = RNA_def_enum(ot->srna, "direction", slot_move, GP_STROKE_MOVE_UP, "Direction", "");
 }
+
 /* ******************* Move Stroke to new color ************************** */
 
-static int gp_stroke_change_color_exec(bContext *C, wmOperator *UNUSED(op))
+static int gp_stroke_change_color_exec(bContext *C, wmOperator *op)
 {
+	Main *bmain = CTX_data_main(C);
+	Material *ma = NULL;
+	char name[MAX_ID_NAME - 2];
+	RNA_string_get(op->ptr, "material", name);
+
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette;
-	bGPDpalettecolor *color;
+	Object *ob = CTX_data_active_object(C);
+	if (name[0] == '\0') {
+		ma = give_current_material(ob, ob->actcol);
+	}
+	else {
+		ma = (Material *)BKE_libblock_find_name(bmain, ID_MA, name);
+		if (ma == NULL) {
+			return OPERATOR_CANCELLED;
+		}
+	}
+	/* try to find slot */
+	int idx = BKE_gpencil_get_material_index(ob, ma) - 1;
+	if (idx <= 0) {
+		return OPERATOR_CANCELLED;
+	}
 
 	/* sanity checks */
 	if (ELEM(NULL, gpd)) {
 		return OPERATOR_CANCELLED;
 	}
 
-	palette = BKE_gpencil_palette_getactive(gpd);
-	color = BKE_gpencil_palettecolor_getactive(palette);
-	if (ELEM(NULL, palette, color)) {
+	bool is_multiedit = (bool)GPENCIL_MULTIEDIT_SESSIONS_ON(gpd);
+	if (ELEM(NULL, ma)) {
 		return OPERATOR_CANCELLED;
 	}
 
 	/* loop all strokes */
-	for (bGPDlayer *gpl = gpd->layers.first; gpl; gpl = gpl->next) {
-		/* only editable and visible layers are considered */
-		if (gpencil_layer_is_editable(gpl) && (gpl->actframe != NULL)) {
-			for (bGPDstroke *gps = gpl->actframe->strokes.last; gps; gps = gps->prev) {
-				/* only if selected */
-				if (gps->flag & GP_STROKE_SELECT) {
-					/* skip strokes that are invalid for current view */
-					if (ED_gpencil_stroke_can_use(C, gps) == false)
-						continue;
-					/* check if the color is editable */
-					if (ED_gpencil_stroke_color_use(gpl, gps) == false)
-						continue;
+	CTX_DATA_BEGIN(C, bGPDlayer *, gpl, editable_gpencil_layers)
+	{
+		bGPDframe *init_gpf = gpl->actframe;
+		if (is_multiedit) {
+			init_gpf = gpl->frames.first;
+		}
+
+		for (bGPDframe *gpf = init_gpf; gpf; gpf = gpf->next) {
+			if ((gpf == gpl->actframe) || ((gpf->flag & GP_FRAME_SELECT) && (is_multiedit))) {
+				if (gpf == NULL)
+					continue;
 
-					/* asign new color (only if different) */
-					if ((STREQ(gps->colorname, color->info) == false) || (gps->palcolor != color)) {
-						BLI_strncpy(gps->colorname, color->info, sizeof(gps->colorname));
-						gps->palcolor = color;
+				for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
+					/* only if selected */
+					if (gps->flag & GP_STROKE_SELECT) {
+						/* skip strokes that are invalid for current view */
+						if (ED_gpencil_stroke_can_use(C, gps) == false)
+							continue;
+						/* check if the color is editable */
+						if (ED_gpencil_stroke_color_use(ob, gpl, gps) == false)
+							continue;
+
+						/* asign new color */
+						gps->mat_nr = idx;
 					}
 				}
 			}
 		}
 	}
+	CTX_DATA_END;
+
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -952,11 +1209,17 @@ void GPENCIL_OT_stroke_change_color(wmOperatorType *ot)
 	/* identifiers */
 	ot->name = "Change Stroke Color";
 	ot->idname = "GPENCIL_OT_stroke_change_color";
-	ot->description = "Move selected strokes to active color";
+	ot->description = "Move selected strokes to active material";
 
-	/* api callbacks */
+	/* callbacks */
 	ot->exec = gp_stroke_change_color_exec;
 	ot->poll = gp_active_layer_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	RNA_def_string(ot->srna, "material", NULL, MAX_ID_NAME - 2, "Material", "Name of the material");
+
 }
 
 /* ******************* Lock color of non selected Strokes colors ************************** */
@@ -964,19 +1227,19 @@ void GPENCIL_OT_stroke_change_color(wmOperatorType *ot)
 static int gp_stroke_lock_color_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette;
+
+	Object *ob = CTX_data_active_object(C);
+
+	short *totcol = give_totcolp(ob);
 
 	/* sanity checks */
 	if (ELEM(NULL, gpd))
 		return OPERATOR_CANCELLED;
 
-	palette = BKE_gpencil_palette_getactive(gpd);
-	if (ELEM(NULL, palette))
-		return OPERATOR_CANCELLED;
-
 	/* first lock all colors */
-	for (bGPDpalettecolor *palcolor = palette->colors.first; palcolor; palcolor = palcolor->next) {
-		palcolor->flag |= PC_COLOR_LOCKED;
+	for (short i = 0; i < *totcol; i++) {
+		Material *tmp_ma = give_current_material(ob, i + 1);
+		tmp_ma->gp_style->flag |= GP_STYLE_COLOR_LOCKED;
 	}
 
 	/* loop all selected strokes and unlock any color */
@@ -991,14 +1254,15 @@ static int gp_stroke_lock_color_exec(bContext *C, wmOperator *UNUSED(op))
 						continue;
 					}
 					/* unlock color */
-					if (gps->palcolor != NULL) {
-						gps->palcolor->flag &= ~PC_COLOR_LOCKED;
-					}
+					Material *tmp_ma = give_current_material(ob, gps->mat_nr + 1);
+
+					tmp_ma->gp_style->flag &= ~GP_STYLE_COLOR_LOCKED;
 				}
 			}
 		}
 	}
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -1014,25 +1278,18 @@ void GPENCIL_OT_stroke_lock_color(wmOperatorType *ot)
 	/* api callbacks */
 	ot->exec = gp_stroke_lock_color_exec;
 	ot->poll = gp_active_layer_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
 
 /* ************************************************ */
 /* Drawing Brushes Operators */
 
-/* ******************* Add New Brush ************************ */
-
-/* add new brush - wrapper around API */
-static int gp_brush_add_exec(bContext *C, wmOperator *op)
+/* ******************* Brush create presets ************************** */
+static int gp_brush_presets_create_exec(bContext *C, wmOperator *UNUSED(op))
 {
-	ToolSettings *ts = CTX_data_tool_settings(C);
-
-	/* if there's no existing container */
-	if (ts == NULL) {
-		BKE_report(op->reports, RPT_ERROR, "Nowhere for brush data to go");
-		return OPERATOR_CANCELLED;
-	}
-	/* add new brush now */
-	BKE_gpencil_brush_addnew(ts, DATA_("GP_Brush"), true);
+	BKE_brush_gpencil_presets(C);
 
 	/* notifiers */
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
@@ -1040,513 +1297,757 @@ static int gp_brush_add_exec(bContext *C, wmOperator *op)
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_brush_add(wmOperatorType *ot)
+void GPENCIL_OT_brush_presets_create(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name = "Add Brush";
-	ot->idname = "GPENCIL_OT_brush_add";
-	ot->description = "Add new Grease Pencil drawing brush for the active Grease Pencil data-block";
+	ot->name = "Create Preset Brushes";
+	ot->idname = "GPENCIL_OT_brush_presets_create";
+	ot->description = "Create a set of predefined Grease Pencil drawing brushes";
 
+	/* api callbacks */
+	ot->exec = gp_brush_presets_create_exec;
+
+	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
-	/* callbacks */
-	ot->exec = gp_brush_add_exec;
-	ot->poll = gp_add_poll;
 }
 
-/* ******************* Remove Active Brush ************************* */
+/* ***************** Select Brush ************************ */
 
-static int gp_brush_remove_exec(bContext *C, wmOperator *op)
+static int gp_brush_select_exec(bContext *C, wmOperator *op)
 {
 	ToolSettings *ts = CTX_data_tool_settings(C);
-	bGPDbrush *brush = BKE_gpencil_brush_getactive(ts);
-
-	/* sanity checks */
-	if (ELEM(NULL, ts, brush))
-		return OPERATOR_CANCELLED;
+	Main *bmain = CTX_data_main(C);
 
-	if (BLI_listbase_count_at_most(&ts->gp_brushes, 2) < 2) {
-		BKE_report(op->reports, RPT_ERROR, "Grease Pencil needs a brush, unable to delete the last one");
+	/* if there's no existing container */
+	if (ts == NULL) {
+		BKE_report(op->reports, RPT_ERROR, "Nowhere to go");
 		return OPERATOR_CANCELLED;
 	}
 
+	const int index = RNA_int_get(op->ptr, "index");
 
-	/* make the brush before this the new active brush
-	 * - use the one after if this is the first
-	 * - if this is the only brush, this naturally becomes NULL
-	 */
-	if (brush->prev)
-		BKE_gpencil_brush_setactive(ts, brush->prev);
-	else
-		BKE_gpencil_brush_setactive(ts, brush->next);
-
-	/* delete the brush now... */
-	BKE_gpencil_brush_delete(ts, brush);
+	Paint *paint = BKE_brush_get_gpencil_paint(ts);
+	int i = 0;
+	for (Brush *brush = bmain->brush.first; brush; brush = brush->id.next) {
+		if (brush->ob_mode == OB_MODE_GPENCIL_PAINT) {
+			if (i == index) {
+				BKE_paint_brush_set(paint, brush);
 
-	/* notifiers */
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+				/* notifiers */
+				WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+				return OPERATOR_FINISHED;
+			}
+			i++;
+		}
+	}
 
-	return OPERATOR_FINISHED;
+	return OPERATOR_CANCELLED;
 }
 
-void GPENCIL_OT_brush_remove(wmOperatorType *ot)
+void GPENCIL_OT_brush_select(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name = "Remove Brush";
-	ot->idname = "GPENCIL_OT_brush_remove";
-	ot->description = "Remove active Grease Pencil drawing brush";
-
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+	ot->name = "Select Brush";
+	ot->idname = "GPENCIL_OT_brush_select";
+	ot->description = "Select a Grease Pencil drawing brush";
 
 	/* callbacks */
-	ot->exec = gp_brush_remove_exec;
+	ot->exec = gp_brush_select_exec;
 	ot->poll = gp_active_brush_poll;
-}
-
-/* ********************** Change Brush ***************************** */
 
-static int gp_brush_change_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(evt))
-{
-	uiPopupMenu *pup;
-	uiLayout *layout;
-
-	/* call the menu, which will call this operator again, hence the canceled */
-	pup = UI_popup_menu_begin(C, op->type->name, ICON_NONE);
-	layout = UI_popup_menu_layout(pup);
-	uiItemsEnumO(layout, "GPENCIL_OT_brush_change", "brush");
-	UI_popup_menu_end(C, pup);
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
-	return OPERATOR_INTERFACE;
+	/* properties */
+	RNA_def_int(ot->srna, "index", 0, 0, INT_MAX, "Index", "Index of Drawing Brush", 0, INT_MAX);
 }
 
-static int gp_brush_change_exec(bContext *C, wmOperator *op)
+/* ***************** Select Sculpt Brush ************************ */
+
+static int gp_sculpt_select_exec(bContext *C, wmOperator *op)
 {
 	ToolSettings *ts = CTX_data_tool_settings(C);
-	bGPDbrush *brush = NULL;
-	int brush_num = RNA_enum_get(op->ptr, "brush");
 
-	/* Get brush or create new one */
-	if (brush_num == -1) {
-		/* Create brush */
-		brush = BKE_gpencil_brush_addnew(ts, DATA_("GP_Brush"), true);
+	/* if there's no existing container */
+	if (ts == NULL) {
+		BKE_report(op->reports, RPT_ERROR, "Nowhere to go");
+		return OPERATOR_CANCELLED;
 	}
-	else {
-		/* Try to get brush */
-		brush = BLI_findlink(&ts->gp_brushes, brush_num);
 
-		if (brush == NULL) {
-			BKE_reportf(op->reports, RPT_ERROR, "Cannot change to non-existent brush (index = %d)", brush_num);
-			return OPERATOR_CANCELLED;
-		}
+	const int index = RNA_int_get(op->ptr, "index");
+	GP_BrushEdit_Settings *gp_sculpt = &ts->gp_sculpt;
+	/* sanity checks */
+	if (ELEM(NULL, gp_sculpt)) {
+		return OPERATOR_CANCELLED;
 	}
 
-	/* Set active brush */
-	BKE_gpencil_brush_setactive(ts, brush);
-
-	/* updates */
+	if (index < TOT_GP_EDITBRUSH_TYPES - 1) {
+		gp_sculpt->brushtype = index;
+	}
+	/* notifiers */
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_brush_change(wmOperatorType *ot)
+void GPENCIL_OT_sculpt_select(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name = "Change Brush";
-	ot->idname = "GPENCIL_OT_brush_change";
-	ot->description = "Change active Grease Pencil drawing brush";
+	ot->name = "Select Sculpt Brush";
+	ot->idname = "GPENCIL_OT_sculpt_select";
+	ot->description = "Select a Grease Pencil sculpt brush";
 
 	/* callbacks */
-	ot->invoke = gp_brush_change_invoke;
-	ot->exec = gp_brush_change_exec;
-	ot->poll = gp_active_brush_poll;
+	ot->exec = gp_sculpt_select_exec;
+	ot->poll = gp_add_poll;
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
-	/* gp brush to use (dynamic enum) */
-	ot->prop = RNA_def_enum(ot->srna, "brush", DummyRNA_DEFAULT_items, 0, "Grease Pencil Brush", "");
-	RNA_def_enum_funcs(ot->prop, ED_gpencil_brushes_enum_itemf);
+	/* properties */
+	RNA_def_int(ot->srna, "index", 0, 0, INT_MAX, "Index", "Index of Sculpt Brush", 0, INT_MAX);
 }
 
-/* ******************* Move Brush Up/Down ************************** */
+/*********************** Vertex Groups ***********************************/
 
-enum {
-	GP_BRUSH_MOVE_UP = -1,
-	GP_BRUSH_MOVE_DOWN = 1
-};
+static bool gpencil_vertex_group_poll(bContext *C)
+{
+	Object *ob = CTX_data_active_object(C);
+
+	if ((ob) && (ob->type == OB_GPENCIL)) {
+		if (!ID_IS_LINKED(ob) && !ID_IS_LINKED(ob->data) && ob->defbase.first) {
+			if (ELEM(ob->mode,
+			         OB_MODE_GPENCIL_EDIT,
+			         OB_MODE_GPENCIL_SCULPT))
+			{
+				return true;
+			}
+		}
+	}
 
-static int gp_brush_move_exec(bContext *C, wmOperator *op)
+	return false;
+}
+
+static bool gpencil_vertex_group_weight_poll(bContext *C)
 {
-	ToolSettings *ts = CTX_data_tool_settings(C);
-	bGPDbrush *brush = BKE_gpencil_brush_getactive(ts);
+	Object *ob = CTX_data_active_object(C);
 
-	int direction = RNA_enum_get(op->ptr, "type");
+	if ((ob) && (ob->type == OB_GPENCIL)) {
+		if (!ID_IS_LINKED(ob) && !ID_IS_LINKED(ob->data) && ob->defbase.first) {
+			if (ob->mode == OB_MODE_GPENCIL_WEIGHT) {
+				return true;
+			}
+		}
+	}
+
+	return false;
+}
+
+static int gpencil_vertex_group_assign_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	Object *ob = CTX_data_active_object(C);
 
 	/* sanity checks */
-	if (ELEM(NULL, ts, brush)) {
+	if (ELEM(NULL, ts, ob, ob->data))
 		return OPERATOR_CANCELLED;
-	}
 
-	/* up or down? */
-	if (direction == GP_BRUSH_MOVE_UP) {
-		/* up */
-		BLI_remlink(&ts->gp_brushes, brush);
-		BLI_insertlinkbefore(&ts->gp_brushes, brush->prev, brush);
-	}
-	else if (direction == GP_BRUSH_MOVE_DOWN) {
-		/* down */
-		BLI_remlink(&ts->gp_brushes, brush);
-		BLI_insertlinkafter(&ts->gp_brushes, brush->next, brush);
-	}
-	else {
-		BLI_assert(0);
-	}
+	ED_gpencil_vgroup_assign(C, ob, ts->vgroup_weight);
 
 	/* notifiers */
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+	bGPdata *gpd = ob->data;
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED | ND_SPACE_PROPERTIES, NULL);
 
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_brush_move(wmOperatorType *ot)
+void GPENCIL_OT_vertex_group_assign(wmOperatorType *ot)
 {
-	static const EnumPropertyItem slot_move[] = {
-		{GP_BRUSH_MOVE_UP, "UP", 0, "Up", ""},
-		{GP_BRUSH_MOVE_DOWN, "DOWN", 0, "Down", ""},
-		{0, NULL, 0, NULL, NULL }
-	};
-
 	/* identifiers */
-	ot->name = "Move Brush";
-	ot->idname = "GPENCIL_OT_brush_move";
-	ot->description = "Move the active Grease Pencil drawing brush up/down in the list";
+	ot->name = "Assign to Vertex Group";
+	ot->idname = "GPENCIL_OT_vertex_group_assign";
+	ot->description = "Assign the selected vertices to the active vertex group";
 
 	/* api callbacks */
-	ot->exec = gp_brush_move_exec;
-	ot->poll = gp_active_brush_poll;
+	ot->poll = gpencil_vertex_group_poll;
+	ot->exec = gpencil_vertex_group_assign_exec;
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-
-	ot->prop = RNA_def_enum(ot->srna, "type", slot_move, GP_BRUSH_MOVE_UP, "Type", "");
 }
 
-/* ******************* Brush create presets ************************** */
-
-static int gp_brush_presets_create_exec(bContext *C, wmOperator *UNUSED(op))
+/* remove point from vertex group */
+static int gpencil_vertex_group_remove_from_exec(bContext *C, wmOperator *UNUSED(op))
 {
-	ToolSettings *ts = CTX_data_tool_settings(C);
-	BKE_gpencil_brush_init_presets(ts);
+	Object *ob = CTX_data_active_object(C);
+
+	/* sanity checks */
+	if (ELEM(NULL, ob, ob->data))
+		return OPERATOR_CANCELLED;
+
+	ED_gpencil_vgroup_remove(C, ob);
 
 	/* notifiers */
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+	bGPdata *gpd = ob->data;
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED | ND_SPACE_PROPERTIES, NULL);
 
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_brush_presets_create(wmOperatorType *ot)
+void GPENCIL_OT_vertex_group_remove_from(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name = "Create Preset Brushes";
-	ot->idname = "GPENCIL_OT_brush_presets_create";
-	ot->description = "Create a set of predefined Grease Pencil drawing brushes";
+	ot->name = "Remove from Vertex Group";
+	ot->idname = "GPENCIL_OT_vertex_group_remove_from";
+	ot->description = "Remove the selected vertices from active or all vertex group(s)";
 
 	/* api callbacks */
-	ot->exec = gp_brush_presets_create_exec;
+	ot->poll = gpencil_vertex_group_poll;
+	ot->exec = gpencil_vertex_group_remove_from_exec;
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
 }
 
-/* ***************** Copy Brush ************************ */
-
-static int gp_brush_copy_exec(bContext *C, wmOperator *op)
+static int gpencil_vertex_group_select_exec(bContext *C, wmOperator *UNUSED(op))
 {
-	ToolSettings *ts = CTX_data_tool_settings(C);
-
-	/* if there's no existing container */
-	if (ts == NULL) {
-		BKE_report(op->reports, RPT_ERROR, "Nowhere for brush data to go");
-		return OPERATOR_CANCELLED;
-	}
-
-	bGPDbrush *brush = BKE_gpencil_brush_getactive(ts);
-	bGPDbrush *newbrush;
+	Object *ob = CTX_data_active_object(C);
 
 	/* sanity checks */
-	if (ELEM(NULL, brush))
+	if (ELEM(NULL, ob, ob->data))
 		return OPERATOR_CANCELLED;
 
-	/* create a brush and duplicate data */
-	newbrush = BKE_gpencil_brush_addnew(ts, brush->info, true);
-	newbrush->thickness = brush->thickness;
-	newbrush->draw_smoothfac = brush->draw_smoothfac;
-	newbrush->draw_smoothlvl = brush->draw_smoothlvl;
-	newbrush->sublevel = brush->sublevel;
-	newbrush->flag = brush->flag;
-	newbrush->draw_sensitivity = brush->draw_sensitivity;
-	newbrush->draw_strength = brush->draw_strength;
-	newbrush->draw_jitter = brush->draw_jitter;
-	newbrush->draw_angle = brush->draw_angle;
-	newbrush->draw_angle_factor = brush->draw_angle_factor;
-	newbrush->draw_random_press = brush->draw_random_press;
-	newbrush->draw_random_sub = brush->draw_random_sub;
-
-	/* free automatic curves created by default (replaced by copy) */
-	curvemapping_free(newbrush->cur_sensitivity);
-	curvemapping_free(newbrush->cur_strength);
-	curvemapping_free(newbrush->cur_jitter);
-
-	/* make a copy of curves */
-	newbrush->cur_sensitivity = curvemapping_copy(brush->cur_sensitivity);
-	newbrush->cur_strength = curvemapping_copy(brush->cur_strength);
-	newbrush->cur_jitter = curvemapping_copy(brush->cur_jitter);
-
-	BKE_gpencil_brush_setactive(ts, newbrush);
+	ED_gpencil_vgroup_select(C, ob);
+
 	/* notifiers */
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+	bGPdata *gpd = ob->data;
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED | ND_SPACE_PROPERTIES, NULL);
 
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_brush_copy(wmOperatorType *ot)
+void GPENCIL_OT_vertex_group_select(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name = "Copy Brush";
-	ot->idname = "GPENCIL_OT_brush_copy";
-	ot->description = "Copy current Grease Pencil drawing brush";
+	ot->name = "Select Vertex Group";
+	ot->idname = "GPENCIL_OT_vertex_group_select";
+	ot->description = "Select all the vertices assigned to the active vertex group";
 
-	/* callbacks */
-	ot->exec = gp_brush_copy_exec;
-	ot->poll = gp_active_brush_poll;
+	/* api callbacks */
+	ot->poll = gpencil_vertex_group_poll;
+	ot->exec = gpencil_vertex_group_select_exec;
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
 
-/* ***************** Select Brush ************************ */
-
-static int gp_brush_select_exec(bContext *C, wmOperator *op)
+static int gpencil_vertex_group_deselect_exec(bContext *C, wmOperator *UNUSED(op))
 {
-	ToolSettings *ts = CTX_data_tool_settings(C);
+	Object *ob = CTX_data_active_object(C);
 
-	/* if there's no existing container */
-	if (ts == NULL) {
-		BKE_report(op->reports, RPT_ERROR, "Nowhere to go");
-		return OPERATOR_CANCELLED;
-	}
-
-	const int index = RNA_int_get(op->ptr, "index");
-	bGPDbrush *brush = BLI_findlink(&ts->gp_brushes, index);
 	/* sanity checks */
-	if (ELEM(NULL, brush)) {
+	if (ELEM(NULL, ob, ob->data))
 		return OPERATOR_CANCELLED;
-	}
 
-	BKE_gpencil_brush_setactive(ts, brush);
+	ED_gpencil_vgroup_deselect(C, ob);
 
 	/* notifiers */
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+	bGPdata *gpd = ob->data;
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED | ND_SPACE_PROPERTIES, NULL);
 
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_brush_select(wmOperatorType *ot)
+void GPENCIL_OT_vertex_group_deselect(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name = "Select Brush";
-	ot->idname = "GPENCIL_OT_brush_select";
-	ot->description = "Select a Grease Pencil drawing brush";
+	ot->name = "Deselect Vertex Group";
+	ot->idname = "GPENCIL_OT_vertex_group_deselect";
+	ot->description = "Deselect all selected vertices assigned to the active vertex group";
 
-	/* callbacks */
-	ot->exec = gp_brush_select_exec;
-	ot->poll = gp_active_brush_poll;
+	/* api callbacks */
+	ot->poll = gpencil_vertex_group_poll;
+	ot->exec = gpencil_vertex_group_deselect_exec;
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-
-	/* properties */
-	RNA_def_int(ot->srna, "index", 0, 0, INT_MAX, "Index", "Index of Drawing Brush", 0, INT_MAX);
 }
 
-/* ************************************************ */
-/* Palette Operators */
-
-/* ******************* Add New Palette ************************ */
-
-/* add new palette - wrapper around API */
-static int gp_palette_add_exec(bContext *C, wmOperator *op)
+/* invert */
+static int gpencil_vertex_group_invert_exec(bContext *C, wmOperator *UNUSED(op))
 {
-	Main *bmain = CTX_data_main(C);
-	bGPdata **gpd_ptr = ED_gpencil_data_get_pointers(C, NULL);
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	Object *ob = CTX_data_active_object(C);
 
-	/* if there's no existing Grease-Pencil data there, add some */
-	if (gpd_ptr == NULL) {
-		BKE_report(op->reports, RPT_ERROR, "Nowhere for grease pencil data to go");
+	/* sanity checks */
+	if (ELEM(NULL, ts, ob, ob->data))
+		return OPERATOR_CANCELLED;
+
+	MDeformVert *dvert;
+	const int def_nr = ob->actdef - 1;
+	if (!BLI_findlink(&ob->defbase, def_nr))
 		return OPERATOR_CANCELLED;
-	}
-	if (*gpd_ptr == NULL)
-		*gpd_ptr = BKE_gpencil_data_addnew(bmain, DATA_("GPencil"));
 
-	/* add new palette now */
-	BKE_gpencil_palette_addnew(*gpd_ptr, DATA_("GP_Palette"), true);
+	CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
+	{
+		for (int i = 0; i < gps->totpoints; i++) {
+			dvert = &gps->dvert[i];
+			if (dvert->dw == NULL) {
+				BKE_gpencil_vgroup_add_point_weight(dvert, def_nr, 1.0f);
+			}
+			else if (dvert->dw->weight == 1.0f) {
+				BKE_gpencil_vgroup_remove_point_weight(dvert, def_nr);
+			}
+			else {
+				dvert->dw->weight = 1.0f - dvert->dw->weight;
+			}
+		}
+	}
+	CTX_DATA_END;
 
 	/* notifiers */
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+	bGPdata *gpd = ob->data;
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED | ND_SPACE_PROPERTIES, NULL);
 
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_palette_add(wmOperatorType *ot)
+void GPENCIL_OT_vertex_group_invert(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name = "Add Palette";
-	ot->idname = "GPENCIL_OT_palette_add";
-	ot->description = "Add new Grease Pencil palette for the active Grease Pencil data-block";
+	ot->name = "Invert Vertex Group";
+	ot->idname = "GPENCIL_OT_vertex_group_invert";
+	ot->description = "Invert weights to the active vertex group";
 
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+	/* api callbacks */
+	ot->poll = gpencil_vertex_group_weight_poll;
+	ot->exec = gpencil_vertex_group_invert_exec;
 
-	/* callbacks */
-	ot->exec = gp_palette_add_exec;
-	ot->poll = gp_add_poll;
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
 
-/* ******************* Remove Active Palette ************************* */
-
-static int gp_palette_remove_exec(bContext *C, wmOperator *op)
+/* smooth */
+static int gpencil_vertex_group_smooth_exec(bContext *C, wmOperator *op)
 {
-	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
+	const float fac = RNA_float_get(op->ptr, "factor");
+	const int repeat = RNA_int_get(op->ptr, "repeat");
+
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	Object *ob = CTX_data_active_object(C);
 
 	/* sanity checks */
-	if (ELEM(NULL, gpd, palette))
+	if (ELEM(NULL, ts, ob, ob->data))
 		return OPERATOR_CANCELLED;
 
-	if (BLI_listbase_count_at_most(&gpd->palettes, 2) < 2) {
-		BKE_report(op->reports, RPT_ERROR, "Grease Pencil needs a palette, unable to delete the last one");
-		return OPERATOR_CANCELLED;
-	}
+	bGPDspoint *pta, *ptb, *ptc;
+	MDeformVert *dverta, *dvertb;
 
+	const int def_nr = ob->actdef - 1;
+	if (!BLI_findlink(&ob->defbase, def_nr))
+		return OPERATOR_CANCELLED;
 
-	/* make the palette before this the new active palette
-	 * - use the one after if this is the first
-	 * - if this is the only palette, this naturally becomes NULL
-	 */
-	if (palette->prev)
-		BKE_gpencil_palette_setactive(gpd, palette->prev);
-	else
-		BKE_gpencil_palette_setactive(gpd, palette->next);
+	CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
+	{
+		for (int s = 0; s < repeat; s++) {
+			for (int i = 0; i < gps->totpoints; i++) {
+				/* previous point */
+				if (i > 0) {
+					pta = &gps->points[i - 1];
+					dverta = &gps->dvert[i - 1];
+				}
+				else {
+					pta = &gps->points[i];
+					dverta = &gps->dvert[i];
+				}
+				/* current */
+				ptb = &gps->points[i];
+				dvertb = &gps->dvert[i];
+				/* next point */
+				if (i + 1 < gps->totpoints) {
+					ptc = &gps->points[i + 1];
+				}
+				else {
+					ptc = &gps->points[i];
+				}
 
-	/* delete the palette now... */
-	BKE_gpencil_palette_delete(gpd, palette);
+				float wa = BKE_gpencil_vgroup_use_index(dverta, def_nr);
+				float wb = BKE_gpencil_vgroup_use_index(dvertb, def_nr);
+				CLAMP_MIN(wa, 0.0f);
+				CLAMP_MIN(wb, 0.0f);
+
+				/* the optimal value is the corresponding to the interpolation of the weight
+				*  at the distance of point b
+				*/
+				const float opfac = line_point_factor_v3(&ptb->x, &pta->x, &ptc->x);
+				const float optimal = interpf(wa, wb, opfac);
+				/* Based on influence factor, blend between original and optimal */
+				wb = interpf(wb, optimal, fac);
+				BKE_gpencil_vgroup_add_point_weight(dvertb, def_nr, wb);
+			}
+		}
+	}
+	CTX_DATA_END;
 
 	/* notifiers */
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+	bGPdata *gpd = ob->data;
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED | ND_SPACE_PROPERTIES, NULL);
 
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_palette_remove(wmOperatorType *ot)
+void GPENCIL_OT_vertex_group_smooth(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name = "Remove palette";
-	ot->idname = "GPENCIL_OT_palette_remove";
-	ot->description = "Remove active Grease Pencil palette";
+	ot->name = "Smooth Vertex Group";
+	ot->idname = "GPENCIL_OT_vertex_group_smooth";
+	ot->description = "Smooth weights to the active vertex group";
 
+	/* api callbacks */
+	ot->poll = gpencil_vertex_group_weight_poll;
+	ot->exec = gpencil_vertex_group_smooth_exec;
+
+	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
-	/* callbacks */
-	ot->exec = gp_palette_remove_exec;
-	ot->poll = gp_active_palette_poll;
+	RNA_def_float(ot->srna, "factor", 0.5f, 0.0f, 1.0, "Factor", "", 0.0f, 1.0f);
+	RNA_def_int(ot->srna, "repeat", 1, 1, 10000, "Iterations", "", 1, 200);
 }
 
-/* ********************** Change Palette ***************************** */
+/****************************** Join ***********************************/
+
+/* userdata for joined_gpencil_fix_animdata_cb() */
+typedef struct tJoinGPencil_AdtFixData {
+	bGPdata *src_gpd;
+	bGPdata *tar_gpd;
 
-static int gp_palette_change_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(evt))
+	GHash *names_map;
+} tJoinGPencil_AdtFixData;
+
+/* Callback to pass to BKE_fcurves_main_cb() for RNA Paths attached to each F-Curve used in the AnimData */
+static void joined_gpencil_fix_animdata_cb(ID *id, FCurve *fcu, void *user_data)
 {
-	uiPopupMenu *pup;
-	uiLayout *layout;
+	tJoinGPencil_AdtFixData *afd = (tJoinGPencil_AdtFixData *)user_data;
+	ID *src_id = &afd->src_gpd->id;
+	ID *dst_id = &afd->tar_gpd->id;
 
-	/* call the menu, which will call this operator again, hence the canceled */
-	pup = UI_popup_menu_begin(C, op->type->name, ICON_NONE);
-	layout = UI_popup_menu_layout(pup);
-	uiItemsEnumO(layout, "GPENCIL_OT_palette_change", "palette");
-	UI_popup_menu_end(C, pup);
+	GHashIterator gh_iter;
 
-	return OPERATOR_INTERFACE;
+	/* Fix paths - If this is the target datablock, it will have some "dirty" paths */
+	if ((id == src_id) && fcu->rna_path && strstr(fcu->rna_path, "layers[")) {
+		GHASH_ITER(gh_iter, afd->names_map) {
+			const char *old_name = BLI_ghashIterator_getKey(&gh_iter);
+			const char *new_name = BLI_ghashIterator_getValue(&gh_iter);
+
+			/* only remap if changed; this still means there will be some waste if there aren't many drivers/keys */
+			if (!STREQ(old_name, new_name) && strstr(fcu->rna_path, old_name)) {
+				fcu->rna_path = BKE_animsys_fix_rna_path_rename(id, fcu->rna_path, "layers",
+				                                                old_name, new_name, 0, 0, false);
+
+				/* we don't want to apply a second remapping on this F-Curve now,
+				 * so stop trying to fix names names
+				 */
+				break;
+			}
+		}
+	}
+
+	/* Fix driver targets */
+	if (fcu->driver) {
+		/* Fix driver references to invalid ID's */
+		for (DriverVar *dvar = fcu->driver->variables.first; dvar; dvar = dvar->next) {
+			/* only change the used targets, since the others will need fixing manually anyway */
+			DRIVER_TARGETS_USED_LOOPER(dvar)
+			{
+				/* change the ID's used... */
+				if (dtar->id == src_id) {
+					dtar->id = dst_id;
+
+					/* also check on the subtarget...
+					 * XXX: We duplicate the logic from drivers_path_rename_fix() here, with our own
+					 *      little twists so that we know that it isn't going to clobber the wrong data
+					 */
+					if (dtar->rna_path && strstr(dtar->rna_path, "layers[")) {
+						GHASH_ITER(gh_iter, afd->names_map) {
+							const char *old_name = BLI_ghashIterator_getKey(&gh_iter);
+							const char *new_name = BLI_ghashIterator_getValue(&gh_iter);
+
+							/* only remap if changed */
+							if (!STREQ(old_name, new_name)) {
+								if ((dtar->rna_path) && strstr(dtar->rna_path, old_name)) {
+									/* Fix up path */
+									dtar->rna_path = BKE_animsys_fix_rna_path_rename(id, dtar->rna_path, "layers",
+									                                                 old_name, new_name, 0, 0, false);
+									break; /* no need to try any more names for layer path */
+								}
+							}
+						}
+					}
+				}
+			}
+			DRIVER_TARGETS_LOOPER_END
+		}
+	}
 }
 
-static int gp_palette_change_exec(bContext *C, wmOperator *op)
+/* join objects called from OBJECT_OT_join */
+int ED_gpencil_join_objects_exec(bContext *C, wmOperator *op)
 {
-	bGPdata *gpd = CTX_data_gpencil_data(C);
-	bGPDpalette *palette = NULL;
-	int palette_num = RNA_enum_get(op->ptr, "palette");
+	Main *bmain = CTX_data_main(C);
+	Scene *scene = CTX_data_scene(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	Object  *obact = CTX_data_active_object(C);
+	bGPdata *gpd_dst = NULL;
+	bool ok = false;
+
+	/* Ensure we're in right mode and that the active object is correct */
+	if (!obact || obact->type != OB_GPENCIL)
+		return OPERATOR_CANCELLED;
 
-	/* Get palette or create new one */
-	if (palette_num == -1) {
-		/* Create palette */
-		palette = BKE_gpencil_palette_addnew(gpd, DATA_("GP_Palette"), true);
+	bGPdata *gpd = (bGPdata *)obact->data;
+	if ((!gpd) || GPENCIL_ANY_MODE(gpd)) {
+		return OPERATOR_CANCELLED;
 	}
-	else {
-		/* Try to get palette */
-		palette = BLI_findlink(&gpd->palettes, palette_num);
 
-		if (palette == NULL) {
-			BKE_reportf(op->reports, RPT_ERROR, "Cannot change to non-existent palette (index = %d)", palette_num);
-			return OPERATOR_CANCELLED;
+	/* Ensure all rotations are applied before */
+	// XXX: Why don't we apply them here instead of warning?
+	CTX_DATA_BEGIN(C, Base *, base, selected_editable_bases)
+	{
+		if (base->object->type == OB_GPENCIL) {
+			if ((base->object->rot[0] != 0) ||
+			    (base->object->rot[1] != 0) ||
+			    (base->object->rot[2] != 0))
+			{
+				BKE_report(op->reports, RPT_ERROR, "Apply all rotations before join objects");
+				return OPERATOR_CANCELLED;
+			}
 		}
 	}
+	CTX_DATA_END;
 
-	/* Set active palette */
-	BKE_gpencil_palette_setactive(gpd, palette);
+	CTX_DATA_BEGIN(C, Base *, base, selected_editable_bases)
+	{
+		if (base->object == obact) {
+			ok = true;
+			break;
+		}
+	}
+	CTX_DATA_END;
 
-	/* updates */
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+	/* that way the active object is always selected */
+	if (ok == false) {
+		BKE_report(op->reports, RPT_WARNING, "Active object is not a selected grease pencil");
+		return OPERATOR_CANCELLED;
+	}
 
-	return OPERATOR_FINISHED;
-}
+	gpd_dst = obact->data;
+	Object *ob_dst = obact;
+
+	/* loop and join all data */
+	CTX_DATA_BEGIN(C, Base *, base, selected_editable_bases)
+	{
+		if ((base->object->type == OB_GPENCIL) && (base->object != obact)) {
+			/* we assume that each datablock is not already used in active object */
+			if (obact->data != base->object->data) {
+				Object *ob_src = base->object;
+				bGPdata *gpd_src = base->object->data;
+
+				/* Apply all GP modifiers before */
+				for (GpencilModifierData *md = base->object->greasepencil_modifiers.first; md; md = md->next) {
+					const GpencilModifierTypeInfo *mti = BKE_gpencil_modifierType_getInfo(md->type);
+					if (mti->bakeModifier) {
+						mti->bakeModifier(bmain, depsgraph, md, base->object);
+					}
+				}
 
-void GPENCIL_OT_palette_change(wmOperatorType *ot)
-{
-	/* identifiers */
-	ot->name = "Change Palette";
-	ot->idname = "GPENCIL_OT_palette_change";
-	ot->description = "Change active Grease Pencil palette";
+				/* copy vertex groups to the base one's */
+				int old_idx = 0;
+				for (bDeformGroup *dg = base->object->defbase.first; dg; dg = dg->next) {
+					bDeformGroup *vgroup = MEM_dupallocN(dg);
+					int idx = BLI_listbase_count(&obact->defbase);
+					defgroup_unique_name(vgroup, obact);
+					BLI_addtail(&obact->defbase, vgroup);
+					/* update vertex groups in strokes in original data */
+					for (bGPDlayer *gpl_src = gpd->layers.first; gpl_src; gpl_src = gpl_src->next) {
+						for (bGPDframe *gpf = gpl_src->frames.first; gpf; gpf = gpf->next) {
+							for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
+								MDeformVert *dvert;
+								int i;
+								for (i = 0, dvert = gps->dvert; i < gps->totpoints; i++, dvert++) {
+									if ((dvert->dw) && (dvert->dw->def_nr == old_idx)) {
+										dvert->dw->def_nr = idx;
+									}
+								}
+							}
+						}
+					}
+					old_idx++;
+				}
+				if (obact->defbase.first && obact->actdef == 0)
+					obact->actdef = 1;
 
-	/* callbacks */
-	ot->invoke = gp_palette_change_invoke;
-	ot->exec = gp_palette_change_exec;
-	ot->poll = gp_active_palette_poll;
+				/* add missing materials reading source materials and checking in destination object */
+				short *totcol = give_totcolp(ob_src);
 
-	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+				for (short i = 0; i < *totcol; i++) {
+					Material *tmp_ma = give_current_material(ob_src, i + 1);
+					if (BKE_gpencil_get_material_index(ob_dst, tmp_ma) == 0) {
+						BKE_object_material_slot_add(bmain, ob_dst);
+						assign_material(bmain, ob_dst, tmp_ma, ob_dst->totcol, BKE_MAT_ASSIGN_USERPREF);
+					}
+				}
+
+				/* duplicate bGPDlayers  */
+				tJoinGPencil_AdtFixData afd = {0};
+				afd.src_gpd = gpd_src;
+				afd.tar_gpd = gpd_dst;
+				afd.names_map = BLI_ghash_str_new("joined_gp_layers_map");
+
+				float imat[3][3], bmat[3][3];
+				float offset_global[3];
+				float offset_local[3];
+
+				sub_v3_v3v3(offset_global, obact->loc, base->object->obmat[3]);
+				copy_m3_m4(bmat, obact->obmat);
+				invert_m3_m3(imat, bmat);
+				mul_m3_v3(imat, offset_global);
+				mul_v3_m3v3(offset_local, imat, offset_global);
+
+
+				for (bGPDlayer *gpl_src = gpd_src->layers.first; gpl_src; gpl_src = gpl_src->next) {
+					bGPDlayer *gpl_new = BKE_gpencil_layer_duplicate(gpl_src);
+					float diff_mat[4][4];
+					float inverse_diff_mat[4][4];
+
+					/* recalculate all stroke points */
+					ED_gpencil_parent_location(depsgraph, base->object, gpd_src, gpl_src, diff_mat);
+					invert_m4_m4(inverse_diff_mat, diff_mat);
+
+					Material *ma_src = NULL;
+					int idx;
+					for (bGPDframe *gpf = gpl_new->frames.first; gpf; gpf = gpf->next) {
+						for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
+
+							/* reasign material. Look old material and try to find in dst */
+							ma_src = give_current_material(ob_src, gps->mat_nr + 1);
+							if (ma_src != NULL) {
+								idx = BKE_gpencil_get_material_index(ob_dst, ma_src);
+								if (idx > 0) {
+									gps->mat_nr = idx - 1;
+								}
+								else {
+									gps->mat_nr = 0;
+								}
+							}
+							else {
+								gps->mat_nr = 0;
+							}
+
+							bGPDspoint *pt;
+							int i;
+							for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
+								float mpt[3];
+								mul_v3_m4v3(mpt, inverse_diff_mat, &pt->x);
+								sub_v3_v3(mpt, offset_local);
+								mul_v3_m4v3(&pt->x, diff_mat, mpt);
+							}
+						}
+					}
 
-	/* gp palette to use (dynamic enum) */
-	ot->prop = RNA_def_enum(ot->srna, "palette", DummyRNA_DEFAULT_items, 0, "Grease Pencil Palette", "");
-	RNA_def_enum_funcs(ot->prop, ED_gpencil_palettes_enum_itemf);
+					/* be sure name is unique in new object */
+					BLI_uniquename(&gpd_dst->layers, gpl_new, DATA_("GP_Layer"), '.', offsetof(bGPDlayer, info), sizeof(gpl_new->info));
+					BLI_ghash_insert(afd.names_map, BLI_strdup(gpl_src->info), gpl_new->info);
+
+					/* add to destination datablock */
+					BLI_addtail(&gpd_dst->layers, gpl_new);
+				}
+
+				/* Fix all the animation data */
+				BKE_fcurves_main_cb(bmain, joined_gpencil_fix_animdata_cb, &afd);
+				BLI_ghash_free(afd.names_map, MEM_freeN, NULL);
+
+				/* Only copy over animdata now, after all the remapping has been done,
+				 * so that we don't have to worry about ambiguities re which datablock
+				 * a layer came from!
+				 */
+				if (base->object->adt) {
+					if (obact->adt == NULL) {
+						/* no animdata, so just use a copy of the whole thing */
+						obact->adt = BKE_animdata_copy(bmain, base->object->adt, false, true);
+					}
+					else {
+						/* merge in data - we'll fix the drivers manually */
+						BKE_animdata_merge_copy(bmain, &obact->id, &base->object->id, ADT_MERGECOPY_KEEP_DST, false);
+					}
+				}
+
+				if (gpd_src->adt) {
+					if (gpd_dst->adt == NULL) {
+						/* no animdata, so just use a copy of the whole thing */
+						gpd_dst->adt = BKE_animdata_copy(bmain, gpd_src->adt, false, true);
+					}
+					else {
+						/* merge in data - we'll fix the drivers manually */
+						BKE_animdata_merge_copy(bmain, &gpd_dst->id, &gpd_src->id, ADT_MERGECOPY_KEEP_DST, false);
+					}
+				}
+			}
+
+			/* Free the old object */
+			ED_object_base_free_and_unlink(bmain, scene, base->object);
+		}
+	}
+	CTX_DATA_END;
+
+	DEG_relations_tag_update(bmain);  /* because we removed object(s) */
+
+	WM_event_add_notifier(C, NC_SCENE | ND_OB_ACTIVE, scene);
+
+	return OPERATOR_FINISHED;
 }
 
-/* ******************* Lock and hide any color non used in current layer ************************** */
+/* Color Handle operator */
+static bool gpencil_active_color_poll(bContext *C)
+{
+	Object *ob = CTX_data_active_object(C);
+	if (ob && ob->data && (ob->type == OB_GPENCIL)) {
+		short *totcolp = give_totcolp(ob);
+		return *totcolp > 0;
+	}
+	return false;
+}
 
-static int gp_palette_lock_layer_exec(bContext *C, wmOperator *UNUSED(op))
+
+/* ******************* Lock and hide any color non used in current layer ************************** */
+static int gpencil_lock_layer_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette;
+	Object *ob = CTX_data_active_object(C);
+	MaterialGPencilStyle *gp_style = NULL;
 
 	/* sanity checks */
 	if (ELEM(NULL, gpd))
 		return OPERATOR_CANCELLED;
 
-	palette = BKE_gpencil_palette_getactive(gpd);
-	if (ELEM(NULL, palette))
+	/* first lock and hide all colors */
+	Material *ma = NULL;
+	short *totcol = give_totcolp(ob);
+	if (totcol == 0)
 		return OPERATOR_CANCELLED;
 
-	/* first lock and hide all colors */
-	for (bGPDpalettecolor *palcolor = palette->colors.first; palcolor; palcolor = palcolor->next) {
-		palcolor->flag |= PC_COLOR_LOCKED;
-		palcolor->flag |= PC_COLOR_HIDE;
+	for (short i = 0; i < *totcol; i++) {
+		ma = give_current_material(ob, i + 1);
+		gp_style = ma->gp_style;
+		gp_style->flag |= GP_STYLE_COLOR_LOCKED;
+		gp_style->flag |= GP_STYLE_COLOR_HIDE;
 	}
 
 	/* loop all selected strokes and unlock any color used in active layer */
@@ -1558,140 +2059,49 @@ static int gp_palette_lock_layer_exec(bContext *C, wmOperator *UNUSED(op))
 				if (ED_gpencil_stroke_can_use(C, gps) == false)
 					continue;
 
+				gp_style = BKE_material_gpencil_settings_get(ob, gps->mat_nr + 1);
 				/* unlock/unhide color if not unlocked before */
-				if (gps->palcolor != NULL) {
-					gps->palcolor->flag &= ~PC_COLOR_LOCKED;
-					gps->palcolor->flag &= ~PC_COLOR_HIDE;
+				if (gp_style != NULL) {
+					gp_style->flag &= ~GP_STYLE_COLOR_LOCKED;
+					gp_style->flag &= ~GP_STYLE_COLOR_HIDE;
 				}
 			}
 		}
 	}
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_palette_lock_layer(wmOperatorType *ot)
+void GPENCIL_OT_lock_layer(wmOperatorType *ot)
 {
 	/* identifiers */
 	ot->name = "Disable Unused Layer Colors";
-	ot->idname = "GPENCIL_OT_palette_lock_layer";
+	ot->idname = "GPENCIL_OT_lock_layer";
 	ot->description = "Lock and hide any color not used in any layer";
 
 	/* api callbacks */
-	ot->exec = gp_palette_lock_layer_exec;
+	ot->exec = gpencil_lock_layer_exec;
 	ot->poll = gp_active_layer_poll;
 }
 
-/* ************************************************ */
-/* Palette Colors Operators */
-
-/* ******************* Add New Palette ************************ */
-
-/* add new palette - wrapper around API */
-static int gp_palettecolor_add_exec(bContext *C, wmOperator *op)
-{
-	Main *bmain = CTX_data_main(C);
-	bGPdata **gpd_ptr = ED_gpencil_data_get_pointers(C, NULL);
-
-	/* if there's no existing Grease-Pencil data there, add some */
-	if (gpd_ptr == NULL) {
-		BKE_report(op->reports, RPT_ERROR, "Nowhere for grease pencil data to go");
-		return OPERATOR_CANCELLED;
-	}
-	if (*gpd_ptr == NULL)
-		*gpd_ptr = BKE_gpencil_data_addnew(bmain, DATA_("GPencil"));
-
-	/* verify palette */
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(*gpd_ptr);
-	if (palette == NULL)
-		palette = BKE_gpencil_palette_addnew(*gpd_ptr, DATA_("GP_Palette"), true);
-
-	/* add new palette color now */
-	BKE_gpencil_palettecolor_addnew(palette, DATA_("Color"), true);
-
-	/* notifiers */
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
-
-	return OPERATOR_FINISHED;
-}
-
-void GPENCIL_OT_palettecolor_add(wmOperatorType *ot)
-{
-	/* identifiers */
-	ot->name = "Add Palette Color";
-	ot->idname = "GPENCIL_OT_palettecolor_add";
-	ot->description = "Add new Grease Pencil palette color for the active Grease Pencil data-block";
-
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-
-	/* callbacks */
-	ot->exec = gp_palettecolor_add_exec;
-	ot->poll = gp_add_poll;
-}
-
-/* ******************* Remove Active Palette color ************************* */
-
-static int gp_palettecolor_remove_exec(bContext *C, wmOperator *UNUSED(op))
-{
-	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-	bGPDpalettecolor *color = BKE_gpencil_palettecolor_getactive(palette);
-
-	/* sanity checks */
-	if (ELEM(NULL, gpd, palette, color))
-		return OPERATOR_CANCELLED;
-
-	/* make the palette color before this the new active color
-	 * - use the one after if this is the first
-	 * - if this is the only color, this naturally becomes NULL
-	 */
-	if (color->prev)
-		BKE_gpencil_palettecolor_setactive(palette, color->prev);
-	else
-		BKE_gpencil_palettecolor_setactive(palette, color->next);
+/* ********************** Isolate gpencil_ color **************************** */
 
-	/* delete the strokes */
-	BKE_gpencil_palettecolor_delete_strokes(gpd, color->info);
-
-	/* delete the palette color now... */
-	BKE_gpencil_palettecolor_delete(palette, color);
-
-	/* notifiers */
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
-
-	return OPERATOR_FINISHED;
-}
-
-void GPENCIL_OT_palettecolor_remove(wmOperatorType *ot)
-{
-	/* identifiers */
-	ot->name = "Remove palette color";
-	ot->idname = "GPENCIL_OT_palettecolor_remove";
-	ot->description = "Remove active Grease Pencil palette color";
-
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-
-	/* callbacks */
-	ot->exec = gp_palettecolor_remove_exec;
-	ot->poll = gp_active_palettecolor_poll;
-}
-
-/* ********************** Isolate palette color **************************** */
-
-static int gp_isolate_palettecolor_exec(bContext *C, wmOperator *op)
+static int gpencil_color_isolate_exec(bContext *C, wmOperator *op)
 {
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-	bGPDpalettecolor *active_color = BKE_gpencil_palettecolor_getactive(palette);
-	bGPDpalettecolor *palcolor;
+	Object *ob = CTX_data_active_object(C);
+	Material *active_ma = give_current_material(ob, ob->actcol);
+	MaterialGPencilStyle *active_color = BKE_material_gpencil_settings_get(ob, ob->actcol);
+	MaterialGPencilStyle *gp_style;
 
-	int flags = PC_COLOR_LOCKED;
+	int flags = GP_STYLE_COLOR_LOCKED;
 	bool isolate = false;
 
 	if (RNA_boolean_get(op->ptr, "affect_visibility"))
-		flags |= PC_COLOR_HIDE;
+		flags |= GP_STYLE_COLOR_HIDE;
 
 	if (ELEM(NULL, gpd, active_color)) {
 		BKE_report(op->reports, RPT_ERROR, "No active color to isolate");
@@ -1699,15 +2109,19 @@ static int gp_isolate_palettecolor_exec(bContext *C, wmOperator *op)
 	}
 
 	/* Test whether to isolate or clear all flags */
-	for (palcolor = palette->colors.first; palcolor; palcolor = palcolor->next) {
+	Material *ma = NULL;
+	short *totcol = give_totcolp(ob);
+	for (short i = 0; i < *totcol; i++) {
+		ma = give_current_material(ob, i + 1);
 		/* Skip if this is the active one */
-		if (palcolor == active_color)
+		if (ma == active_ma)
 			continue;
 
 		/* If the flags aren't set, that means that the color is
-		 * not alone, so we have some colors to isolate still
-		 */
-		if ((palcolor->flag & flags) == 0) {
+		* not alone, so we have some colors to isolate still
+		*/
+		gp_style = ma->gp_style;
+		if ((gp_style->flag & flags) == 0) {
 			isolate = true;
 			break;
 		}
@@ -1716,72 +2130,78 @@ static int gp_isolate_palettecolor_exec(bContext *C, wmOperator *op)
 	/* Set/Clear flags as appropriate */
 	if (isolate) {
 		/* Set flags on all "other" colors */
-		for (palcolor = palette->colors.first; palcolor; palcolor = palcolor->next) {
-			if (palcolor == active_color)
+		for (short i = 0; i < *totcol; i++) {
+			ma = give_current_material(ob, i + 1);
+			gp_style = ma->gp_style;
+			if (gp_style == active_color)
 				continue;
 			else
-				palcolor->flag |= flags;
+				gp_style->flag |= flags;
 		}
 	}
 	else {
 		/* Clear flags - Restore everything else */
-		for (palcolor = palette->colors.first; palcolor; palcolor = palcolor->next) {
-			palcolor->flag &= ~flags;
+		for (short i = 0; i < *totcol; i++) {
+			ma = give_current_material(ob, i + 1);
+			gp_style = ma->gp_style;
+			gp_style->flag &= ~flags;
 		}
 	}
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_palettecolor_isolate(wmOperatorType *ot)
+void GPENCIL_OT_color_isolate(wmOperatorType *ot)
 {
 	/* identifiers */
-	ot->name = "Isolate Palette Color";
-	ot->idname = "GPENCIL_OT_palettecolor_isolate";
+	ot->name = "Isolate Color";
+	ot->idname = "GPENCIL_OT_color_isolate";
 	ot->description = "Toggle whether the active color is the only one that is editable and/or visible";
 
 	/* callbacks */
-	ot->exec = gp_isolate_palettecolor_exec;
-	ot->poll = gp_active_palettecolor_poll;
+	ot->exec = gpencil_color_isolate_exec;
+	ot->poll = gpencil_active_color_poll;
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
 	/* properties */
 	RNA_def_boolean(ot->srna, "affect_visibility", false, "Affect Visibility", "In addition to toggling "
-	                "the editability, also affect the visibility");
+		"the editability, also affect the visibility");
 }
 
-/* *********************** Hide Palette colors ******************************** */
+/* *********************** Hide colors ******************************** */
 
-static int gp_palettecolor_hide_exec(bContext *C, wmOperator *op)
+static int gpencil_color_hide_exec(bContext *C, wmOperator *op)
 {
-	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-	bGPDpalettecolor *palcolor = BKE_gpencil_palettecolor_getactive(palette);
+	Object *ob = CTX_data_active_object(C);
+	MaterialGPencilStyle *active_color = BKE_material_gpencil_settings_get(ob, ob->actcol);
 
 	bool unselected = RNA_boolean_get(op->ptr, "unselected");
 
-	/* sanity checks */
-	if (ELEM(NULL, gpd, palette, palcolor))
+	Material *ma = NULL;
+	short *totcol = give_totcolp(ob);
+	if (totcol == 0)
 		return OPERATOR_CANCELLED;
 
 	if (unselected) {
-		bGPDpalettecolor *color;
-
 		/* hide unselected */
-		for (color = palette->colors.first; color; color = color->next) {
-			if (color != palcolor) {
-				color->flag |= PC_COLOR_HIDE;
+		MaterialGPencilStyle *color = NULL;
+		for (short i = 0; i < *totcol; i++) {
+			ma = give_current_material(ob, i + 1);
+			color = ma->gp_style;
+			if (active_color != color) {
+				color->flag |= GP_STYLE_COLOR_HIDE;
 			}
 		}
 	}
 	else {
 		/* hide selected/active */
-		palcolor->flag |= PC_COLOR_HIDE;
+		active_color->flag |= GP_STYLE_COLOR_HIDE;
 	}
 
 	/* notifiers */
@@ -1790,18 +2210,18 @@ static int gp_palettecolor_hide_exec(bContext *C, wmOperator *op)
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_palettecolor_hide(wmOperatorType *ot)
+void GPENCIL_OT_color_hide(wmOperatorType *ot)
 {
 	/* identifiers */
 	ot->name = "Hide Color(s)";
-	ot->idname = "GPENCIL_OT_palettecolor_hide";
+	ot->idname = "GPENCIL_OT_color_hide";
 	ot->description = "Hide selected/unselected Grease Pencil colors";
 
 	/* callbacks */
-	ot->exec = gp_palettecolor_hide_exec;
-	ot->poll = gp_active_palettecolor_poll; /* NOTE: we need an active color to play with */
+	ot->exec = gpencil_color_hide_exec;
+	ot->poll = gpencil_active_color_poll; /* NOTE: we need an active color to play with */
 
-	/* flags */
+										  /* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
 	/* props */
@@ -1810,25 +2230,22 @@ void GPENCIL_OT_palettecolor_hide(wmOperatorType *ot)
 
 /* ********************** Show All Colors ***************************** */
 
-/* poll callback for showing colors */
-static bool gp_palettecolor_reveal_poll(bContext *C)
-{
-	return ED_gpencil_data_get_active(C) != NULL;
-}
-
-static int gp_palettecolor_reveal_exec(bContext *C, wmOperator *UNUSED(op))
+static int gpencil_color_reveal_exec(bContext *C, wmOperator *UNUSED(op))
 {
-	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-	bGPDpalettecolor *palcolor;
+	Object *ob = CTX_data_active_object(C);
+	Material *ma = NULL;
+	short *totcol = give_totcolp(ob);
 
-	/* sanity checks */
-	if (ELEM(NULL, gpd, palette))
+	if (totcol == 0)
 		return OPERATOR_CANCELLED;
 
 	/* make all colors visible */
-	for (palcolor = palette->colors.first; palcolor; palcolor = palcolor->next) {
-		palcolor->flag &= ~PC_COLOR_HIDE;
+	MaterialGPencilStyle *gp_style = NULL;
+
+	for (short i = 0; i < *totcol; i++) {
+		ma = give_current_material(ob, i + 1);
+		gp_style = ma->gp_style;
+		gp_style->flag &= ~GP_STYLE_COLOR_HIDE;
 	}
 
 	/* notifiers */
@@ -1837,36 +2254,40 @@ static int gp_palettecolor_reveal_exec(bContext *C, wmOperator *UNUSED(op))
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_palettecolor_reveal(wmOperatorType *ot)
+void GPENCIL_OT_color_reveal(wmOperatorType *ot)
 {
 	/* identifiers */
 	ot->name = "Show All Colors";
-	ot->idname = "GPENCIL_OT_palettecolor_reveal";
-	ot->description = "Unhide all hidden Grease Pencil palette colors";
+	ot->idname = "GPENCIL_OT_color_reveal";
+	ot->description = "Unhide all hidden Grease Pencil gpencil_ colors";
 
 	/* callbacks */
-	ot->exec = gp_palettecolor_reveal_exec;
-	ot->poll = gp_palettecolor_reveal_poll;
+	ot->exec = gpencil_color_reveal_exec;
+	ot->poll = gpencil_active_color_poll;
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
 
-/* ***************** Lock/Unlock All Palette colors ************************ */
+/* ***************** Lock/Unlock All colors ************************ */
 
-static int gp_palettecolor_lock_all_exec(bContext *C, wmOperator *UNUSED(op))
+static int gpencil_color_lock_all_exec(bContext *C, wmOperator *UNUSED(op))
 {
-	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-	bGPDpalettecolor *palcolor;
 
-	/* sanity checks */
-	if (ELEM(NULL, gpd, palette))
+	Object *ob = CTX_data_active_object(C);
+	Material *ma = NULL;
+	short *totcol = give_totcolp(ob);
+
+	if (totcol == 0)
 		return OPERATOR_CANCELLED;
 
 	/* make all layers non-editable */
-	for (palcolor = palette->colors.first; palcolor; palcolor = palcolor->next) {
-		palcolor->flag |= PC_COLOR_LOCKED;
+	MaterialGPencilStyle *gp_style = NULL;
+
+	for (short i = 0; i < *totcol; i++) {
+		ma = give_current_material(ob, i + 1);
+		gp_style = ma->gp_style;
+		gp_style->flag |= GP_STYLE_COLOR_LOCKED;
 	}
 
 	/* notifiers */
@@ -1875,16 +2296,16 @@ static int gp_palettecolor_lock_all_exec(bContext *C, wmOperator *UNUSED(op))
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_palettecolor_lock_all(wmOperatorType *ot)
+void GPENCIL_OT_color_lock_all(wmOperatorType *ot)
 {
 	/* identifiers */
 	ot->name = "Lock All Colors";
-	ot->idname = "GPENCIL_OT_palettecolor_lock_all";
+	ot->idname = "GPENCIL_OT_color_lock_all";
 	ot->description = "Lock all Grease Pencil colors to prevent them from being accidentally modified";
 
 	/* callbacks */
-	ot->exec = gp_palettecolor_lock_all_exec;
-	ot->poll = gp_palettecolor_reveal_poll; /* XXX: could use dedicated poll later */
+	ot->exec = gpencil_color_lock_all_exec;
+	ot->poll = gpencil_active_color_poll;
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
@@ -1892,19 +2313,22 @@ void GPENCIL_OT_palettecolor_lock_all(wmOperatorType *ot)
 
 /* -------------------------- */
 
-static int gp_palettecolor_unlock_all_exec(bContext *C, wmOperator *UNUSED(op))
+static int gpencil_color_unlock_all_exec(bContext *C, wmOperator *UNUSED(op))
 {
-	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-	bGPDpalettecolor *palcolor;
+	Object *ob = CTX_data_active_object(C);
+	Material *ma = NULL;
+	short *totcol = give_totcolp(ob);
 
-	/* sanity checks */
-	if (ELEM(NULL, gpd, palette))
+	if (totcol == 0)
 		return OPERATOR_CANCELLED;
 
 	/* make all layers editable again*/
-	for (palcolor = palette->colors.first; palcolor; palcolor = palcolor->next) {
-		palcolor->flag &= ~PC_COLOR_LOCKED;
+	MaterialGPencilStyle *gp_style = NULL;
+
+	for (short i = 0; i < *totcol; i++) {
+		ma = give_current_material(ob, i + 1);
+		gp_style = ma->gp_style;
+		gp_style->flag &= ~GP_STYLE_COLOR_LOCKED;
 	}
 
 	/* notifiers */
@@ -1913,94 +2337,32 @@ static int gp_palettecolor_unlock_all_exec(bContext *C, wmOperator *UNUSED(op))
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_palettecolor_unlock_all(wmOperatorType *ot)
+void GPENCIL_OT_color_unlock_all(wmOperatorType *ot)
 {
 	/* identifiers */
 	ot->name = "Unlock All Colors";
-	ot->idname = "GPENCIL_OT_palettecolor_unlock_all";
+	ot->idname = "GPENCIL_OT_color_unlock_all";
 	ot->description = "Unlock all Grease Pencil colors so that they can be edited";
 
 	/* callbacks */
-	ot->exec = gp_palettecolor_unlock_all_exec;
-	ot->poll = gp_palettecolor_reveal_poll; /* XXX: could use dedicated poll later */
+	ot->exec = gpencil_color_unlock_all_exec;
+	ot->poll = gpencil_active_color_poll;
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 }
 
-/* ******************* Move Color Up/Down ************************** */
 
-enum {
-	GP_COLOR_MOVE_UP = -1,
-	GP_COLOR_MOVE_DOWN = 1
-};
+/* ***************** Select all strokes using color ************************ */
 
-static int gp_palettecolor_move_exec(bContext *C, wmOperator *op)
+static int gpencil_color_select_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-	bGPDpalettecolor *palcolor = BKE_gpencil_palettecolor_getactive(palette);
-
-	int direction = RNA_enum_get(op->ptr, "direction");
+	Object *ob = CTX_data_active_object(C);
+	MaterialGPencilStyle *gp_style = BKE_material_gpencil_settings_get(ob, ob->actcol);
 
 	/* sanity checks */
-	if (ELEM(NULL, gpd, palette, palcolor))
-		return OPERATOR_CANCELLED;
-
-	/* up or down? */
-	if (direction == GP_COLOR_MOVE_UP) {
-		/* up */
-		BLI_remlink(&palette->colors, palcolor);
-		BLI_insertlinkbefore(&palette->colors, palcolor->prev, palcolor);
-	}
-	else if (direction == GP_COLOR_MOVE_DOWN) {
-		/* down */
-		BLI_remlink(&palette->colors, palcolor);
-		BLI_insertlinkafter(&palette->colors, palcolor->next, palcolor);
-	}
-	else {
-		BLI_assert(0);
-	}
-
-	/* notifiers */
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
-
-	return OPERATOR_FINISHED;
-}
-
-void GPENCIL_OT_palettecolor_move(wmOperatorType *ot)
-{
-	static const EnumPropertyItem slot_move[] = {
-		{GP_COLOR_MOVE_UP, "UP", 0, "Up", ""},
-		{GP_COLOR_MOVE_DOWN, "DOWN", 0, "Down", ""},
-		{0, NULL, 0, NULL, NULL}
-	};
-
-	/* identifiers */
-	ot->name = "Move Palette color";
-	ot->idname = "GPENCIL_OT_palettecolor_move";
-	ot->description = "Move the active Grease Pencil palette color up/down in the list";
-
-	/* api callbacks */
-	ot->exec = gp_palettecolor_move_exec;
-	ot->poll = gp_palettecolor_reveal_poll; /* XXX: could use dedicated poll later */
-
-	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-
-	ot->prop = RNA_def_enum(ot->srna, "direction", slot_move, GP_COLOR_MOVE_UP, "Direction", "");
-}
-
-/* ***************** Select all strokes using Palette color ************************ */
-
-static int gp_palettecolor_select_exec(bContext *C, wmOperator *UNUSED(op))
-{
-	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-	bGPDpalettecolor *palcolor = BKE_gpencil_palettecolor_getactive(palette);
-
-	/* sanity checks */
-	if (ELEM(NULL, gpd, palette, palcolor))
+	if (ELEM(NULL, gpd, gp_style))
 		return OPERATOR_CANCELLED;
 
 	/* read all strokes and select*/
@@ -2013,11 +2375,11 @@ static int gp_palettecolor_select_exec(bContext *C, wmOperator *UNUSED(op))
 				if (ED_gpencil_stroke_can_use(C, gps) == false)
 					continue;
 				/* check if the color is editable */
-				if (ED_gpencil_stroke_color_use(gpl, gps) == false)
+				if (ED_gpencil_stroke_color_use(ob, gpl, gps) == false)
 					continue;
 
 				/* select */
-				if (strcmp(palcolor->info, gps->colorname) == 0) {
+				if (ob->actcol == gps->mat_nr) {
 					bGPDspoint *pt;
 					int i;
 
@@ -2035,56 +2397,16 @@ static int gp_palettecolor_select_exec(bContext *C, wmOperator *UNUSED(op))
 	return OPERATOR_FINISHED;
 }
 
-void GPENCIL_OT_palettecolor_select(wmOperatorType *ot)
+void GPENCIL_OT_color_select(wmOperatorType *ot)
 {
 	/* identifiers */
 	ot->name = "Select Color";
-	ot->idname = "GPENCIL_OT_palettecolor_select";
+	ot->idname = "GPENCIL_OT_color_select";
 	ot->description = "Select all Grease Pencil strokes using current color";
 
 	/* callbacks */
-	ot->exec = gp_palettecolor_select_exec;
-	ot->poll = gp_palettecolor_reveal_poll; /* XXX: could use dedicated poll later */
-
-	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
-}
-
-/* ***************** Copy Palette color ************************ */
-
-static int gp_palettecolor_copy_exec(bContext *C, wmOperator *UNUSED(op))
-{
-	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-	bGPDpalettecolor *palcolor = BKE_gpencil_palettecolor_getactive(palette);
-	bGPDpalettecolor *newcolor;
-
-	/* sanity checks */
-	if (ELEM(NULL, gpd, palette, palcolor))
-		return OPERATOR_CANCELLED;
-
-	/* create a new color and duplicate data */
-	newcolor = BKE_gpencil_palettecolor_addnew(palette, palcolor->info, true);
-	copy_v4_v4(newcolor->color, palcolor->color);
-	copy_v4_v4(newcolor->fill, palcolor->fill);
-	newcolor->flag = palcolor->flag;
-
-	/* notifiers */
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
-
-	return OPERATOR_FINISHED;
-}
-
-void GPENCIL_OT_palettecolor_copy(wmOperatorType *ot)
-{
-	/* identifiers */
-	ot->name = "Copy Color";
-	ot->idname = "GPENCIL_OT_palettecolor_copy";
-	ot->description = "Copy current Grease Pencil palette color";
-
-	/* callbacks */
-	ot->exec = gp_palettecolor_copy_exec;
-	ot->poll = gp_active_palettecolor_poll;
+	ot->exec = gpencil_color_select_exec;
+	ot->poll = gpencil_active_color_poll;
 
 	/* flags */
 	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
diff --git a/source/blender/editors/gpencil/gpencil_edit.c b/source/blender/editors/gpencil/gpencil_edit.c
index ec67b2da161..f7c08239647 100644
--- a/source/blender/editors/gpencil/gpencil_edit.c
+++ b/source/blender/editors/gpencil/gpencil_edit.c
@@ -47,6 +47,7 @@
 
 #include "BLT_translation.h"
 
+#include "DNA_meshdata_types.h"
 #include "DNA_object_types.h"
 #include "DNA_scene_types.h"
 #include "DNA_screen_types.h"
@@ -54,12 +55,18 @@
 #include "DNA_view3d_types.h"
 #include "DNA_gpencil_types.h"
 
+#include "BKE_main.h"
 #include "BKE_context.h"
+#include "BKE_global.h"
+#include "BKE_brush.h"
 #include "BKE_gpencil.h"
+#include "BKE_paint.h"
 #include "BKE_library.h"
-#include "BKE_main.h"
+#include "BKE_material.h"
+#include "BKE_object.h"
 #include "BKE_report.h"
 #include "BKE_screen.h"
+#include "BKE_workspace.h"
 
 #include "UI_interface.h"
 #include "UI_resources.h"
@@ -80,31 +87,70 @@
 #include "ED_space_api.h"
 
 #include "DEG_depsgraph.h"
+#include "DEG_depsgraph_build.h"
+#include "DEG_depsgraph_query.h"
 
 #include "gpencil_intern.h"
 
 /* ************************************************ */
 /* Stroke Edit Mode Management */
-
 static bool gpencil_editmode_toggle_poll(bContext *C)
 {
+	/* if using gpencil object, use this gpd */
+	Object *ob = CTX_data_active_object(C);
+	if ((ob) && (ob->type == OB_GPENCIL)) {
+		return ob->data != NULL;
+	}
 	return ED_gpencil_data_get_active(C) != NULL;
 }
 
-static int gpencil_editmode_toggle_exec(bContext *C, wmOperator *UNUSED(op))
+static int gpencil_editmode_toggle_exec(bContext *C, wmOperator *op)
 {
+	const int back = RNA_boolean_get(op->ptr, "back");
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);                                      \
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	bool is_object = false;
+	short mode;
+	/* if using a gpencil object, use this datablock */
+	Object *ob = CTX_data_active_object(C);
+	if ((ob) && (ob->type == OB_GPENCIL)) {
+		gpd = ob->data;
+		is_object = true;
+	}
 
-	if (gpd == NULL)
+	if (gpd == NULL) {
+		BKE_report(op->reports, RPT_ERROR, "No active GP data");
 		return OPERATOR_CANCELLED;
+	}
 
 	/* Just toggle editmode flag... */
 	gpd->flag ^= GP_DATA_STROKE_EDITMODE;
 	/* recalculate parent matrix */
 	if (gpd->flag & GP_DATA_STROKE_EDITMODE) {
-		ED_gpencil_reset_layers_parent(gpd);
+		ED_gpencil_reset_layers_parent(depsgraph, ob, gpd);
+	}
+	/* set mode */
+	if (gpd->flag & GP_DATA_STROKE_EDITMODE) {
+		mode = OB_MODE_GPENCIL_EDIT;
+	}
+	else {
+		mode = OB_MODE_OBJECT;
+	}
+
+	if (is_object) {
+		/* try to back previous mode */
+		if ((ob->restore_mode) && ((gpd->flag & GP_DATA_STROKE_EDITMODE) == 0) && (back == 1)) {
+			mode = ob->restore_mode;
+		}
+		ob->restore_mode = ob->mode;
+		ob->mode = mode;
 	}
 
+	/* setup other modes */
+	ED_gpencil_setup_modes(C, gpd, mode);
+	/* set cache as dirty */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA, NULL);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_GPENCIL_EDITMODE, NULL);
 	WM_event_add_notifier(C, NC_SCENE | ND_MODE, NULL);
@@ -114,6 +160,8 @@ static int gpencil_editmode_toggle_exec(bContext *C, wmOperator *UNUSED(op))
 
 void GPENCIL_OT_editmode_toggle(wmOperatorType *ot)
 {
+	PropertyRNA *prop;
+
 	/* identifiers */
 	ot->name = "Strokes Edit Mode Toggle";
 	ot->idname = "GPENCIL_OT_editmode_toggle";
@@ -125,6 +173,259 @@ void GPENCIL_OT_editmode_toggle(wmOperatorType *ot)
 
 	/* flags */
 	ot->flag = OPTYPE_UNDO | OPTYPE_REGISTER;
+
+	/* properties */
+	prop = RNA_def_boolean(ot->srna, "back", 0, "Return to Previous Mode", "Return to previous mode");
+	RNA_def_property_flag(prop, PROP_HIDDEN | PROP_SKIP_SAVE);
+}
+
+/* Stroke Paint Mode Management */
+
+static bool gpencil_paintmode_toggle_poll(bContext *C)
+{
+	/* if using gpencil object, use this gpd */
+	Object *ob = CTX_data_active_object(C);
+	if ((ob) && (ob->type == OB_GPENCIL)) {
+		return ob->data != NULL;
+	}
+	return ED_gpencil_data_get_active(C) != NULL;
+}
+
+static int gpencil_paintmode_toggle_exec(bContext *C, wmOperator *op)
+{
+	const bool back = RNA_boolean_get(op->ptr, "back");
+
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	ToolSettings *ts = CTX_data_tool_settings(C);
+
+	bool is_object = false;
+	short mode;
+	/* if using a gpencil object, use this datablock */
+	Object *ob = CTX_data_active_object(C);
+	if ((ob) && (ob->type == OB_GPENCIL)) {
+		gpd = ob->data;
+		is_object = true;
+	}
+
+	if (gpd == NULL)
+		return OPERATOR_CANCELLED;
+
+	/* Just toggle paintmode flag... */
+	gpd->flag ^= GP_DATA_STROKE_PAINTMODE;
+	/* set mode */
+	if (gpd->flag & GP_DATA_STROKE_PAINTMODE) {
+		mode = OB_MODE_GPENCIL_PAINT;
+	}
+	else {
+		mode = OB_MODE_OBJECT;
+	}
+
+	if (is_object) {
+		/* try to back previous mode */
+		if ((ob->restore_mode) && ((gpd->flag & GP_DATA_STROKE_PAINTMODE) == 0) && (back == 1)) {
+			mode = ob->restore_mode;
+		}
+		ob->restore_mode = ob->mode;
+		ob->mode = mode;
+	}
+
+	/* be sure we have brushes */
+	Paint *paint = BKE_brush_get_gpencil_paint(ts);
+	/* if not exist, create a new one */
+	if (paint->brush == NULL) {
+		BKE_brush_gpencil_presets(C);
+	}
+
+	/* setup other modes */
+	ED_gpencil_setup_modes(C, gpd, mode);
+	/* set cache as dirty */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | ND_GPENCIL_EDITMODE, NULL);
+	WM_event_add_notifier(C, NC_SCENE | ND_MODE, NULL);
+
+	return OPERATOR_FINISHED;
+}
+
+void GPENCIL_OT_paintmode_toggle(wmOperatorType *ot)
+{
+	PropertyRNA *prop;
+
+	/* identifiers */
+	ot->name = "Strokes Paint Mode Toggle";
+	ot->idname = "GPENCIL_OT_paintmode_toggle";
+	ot->description = "Enter/Exit paint mode for Grease Pencil strokes";
+
+	/* callbacks */
+	ot->exec = gpencil_paintmode_toggle_exec;
+	ot->poll = gpencil_paintmode_toggle_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_UNDO | OPTYPE_REGISTER;
+
+	/* properties */
+	prop = RNA_def_boolean(ot->srna, "back", 0, "Return to Previous Mode", "Return to previous mode");
+	RNA_def_property_flag(prop, PROP_HIDDEN | PROP_SKIP_SAVE);
+}
+
+/* Stroke Sculpt Mode Management */
+
+static bool gpencil_sculptmode_toggle_poll(bContext *C)
+{
+	/* if using gpencil object, use this gpd */
+	Object *ob = CTX_data_active_object(C);
+	if ((ob) && (ob->type == OB_GPENCIL)) {
+		return ob->data != NULL;
+	}
+	return ED_gpencil_data_get_active(C) != NULL;
+}
+
+static int gpencil_sculptmode_toggle_exec(bContext *C, wmOperator *op)
+{
+	const bool back = RNA_boolean_get(op->ptr, "back");
+
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	bool is_object = false;
+	short mode;
+	/* if using a gpencil object, use this datablock */
+	Object *ob = CTX_data_active_object(C);
+	if ((ob) && (ob->type == OB_GPENCIL)) {
+		gpd = ob->data;
+		is_object = true;
+	}
+
+	if (gpd == NULL)
+		return OPERATOR_CANCELLED;
+
+	/* Just toggle sculptmode flag... */
+	gpd->flag ^= GP_DATA_STROKE_SCULPTMODE;
+	/* set mode */
+	if (gpd->flag & GP_DATA_STROKE_SCULPTMODE) {
+		mode = OB_MODE_GPENCIL_SCULPT;
+	}
+	else {
+		mode = OB_MODE_OBJECT;
+	}
+
+	if (is_object) {
+		/* try to back previous mode */
+		if ((ob->restore_mode) && ((gpd->flag & GP_DATA_STROKE_SCULPTMODE) == 0) && (back == 1)) {
+			mode = ob->restore_mode;
+		}
+		ob->restore_mode = ob->mode;
+		ob->mode = mode;
+	}
+
+	/* setup other modes */
+	ED_gpencil_setup_modes(C, gpd, mode);
+	/* set cache as dirty */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | ND_GPENCIL_EDITMODE, NULL);
+	WM_event_add_notifier(C, NC_SCENE | ND_MODE, NULL);
+
+	return OPERATOR_FINISHED;
+}
+
+void GPENCIL_OT_sculptmode_toggle(wmOperatorType *ot)
+{
+	PropertyRNA *prop;
+
+	/* identifiers */
+	ot->name = "Strokes Sculpt Mode Toggle";
+	ot->idname = "GPENCIL_OT_sculptmode_toggle";
+	ot->description = "Enter/Exit sculpt mode for Grease Pencil strokes";
+
+	/* callbacks */
+	ot->exec = gpencil_sculptmode_toggle_exec;
+	ot->poll = gpencil_sculptmode_toggle_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_UNDO | OPTYPE_REGISTER;
+
+	/* properties */
+	prop = RNA_def_boolean(ot->srna, "back", 0, "Return to Previous Mode", "Return to previous mode");
+	RNA_def_property_flag(prop, PROP_HIDDEN | PROP_SKIP_SAVE);
+}
+
+/* Stroke Weight Paint Mode Management */
+
+static bool gpencil_weightmode_toggle_poll(bContext *C)
+{
+	/* if using gpencil object, use this gpd */
+	Object *ob = CTX_data_active_object(C);
+	if ((ob) && (ob->type == OB_GPENCIL)) {
+		return ob->data != NULL;
+	}
+	return ED_gpencil_data_get_active(C) != NULL;
+}
+
+static int gpencil_weightmode_toggle_exec(bContext *C, wmOperator *op)
+{
+	const bool back = RNA_boolean_get(op->ptr, "back");
+
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	bool is_object = false;
+	short mode;
+	/* if using a gpencil object, use this datablock */
+	Object *ob = CTX_data_active_object(C);
+	if ((ob) && (ob->type == OB_GPENCIL)) {
+		gpd = ob->data;
+		is_object = true;
+	}
+
+	if (gpd == NULL)
+		return OPERATOR_CANCELLED;
+
+	/* Just toggle weightmode flag... */
+	gpd->flag ^= GP_DATA_STROKE_WEIGHTMODE;
+	/* set mode */
+	if (gpd->flag & GP_DATA_STROKE_WEIGHTMODE) {
+		mode = OB_MODE_GPENCIL_WEIGHT;
+	}
+	else {
+		mode = OB_MODE_OBJECT;
+	}
+
+	if (is_object) {
+		/* try to back previous mode */
+		if ((ob->restore_mode) && ((gpd->flag & GP_DATA_STROKE_WEIGHTMODE) == 0) && (back == 1)) {
+			mode = ob->restore_mode;
+		}
+		ob->restore_mode = ob->mode;
+		ob->mode = mode;
+	}
+
+	/* setup other modes */
+	ED_gpencil_setup_modes(C, gpd, mode);
+	/* set cache as dirty */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | ND_GPENCIL_EDITMODE, NULL);
+	WM_event_add_notifier(C, NC_SCENE | ND_MODE, NULL);
+
+	return OPERATOR_FINISHED;
+}
+
+void GPENCIL_OT_weightmode_toggle(wmOperatorType *ot)
+{
+	PropertyRNA *prop;
+
+	/* identifiers */
+	ot->name = "Strokes Weight Mode Toggle";
+	ot->idname = "GPENCIL_OT_weightmode_toggle";
+	ot->description = "Enter/Exit weight paint mode for Grease Pencil strokes";
+
+	/* callbacks */
+	ot->exec = gpencil_weightmode_toggle_exec;
+	ot->poll = gpencil_weightmode_toggle_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_UNDO | OPTYPE_REGISTER;
+
+	/* properties */
+	prop = RNA_def_boolean(ot->srna, "back", 0, "Return to Previous Mode", "Return to previous mode");
+	RNA_def_property_flag(prop, PROP_HIDDEN | PROP_SKIP_SAVE);
 }
 
 /* ************************************************ */
@@ -137,21 +438,30 @@ static bool gp_stroke_edit_poll(bContext *C)
 	return CTX_DATA_COUNT(C, editable_gpencil_strokes) != 0;
 }
 
+/* poll callback to verify edit mode in 3D view only */
+static bool gp_strokes_edit3d_poll(bContext *C)
+{
+	/* 2 Requirements:
+	*  - 1) Editable GP data
+	*  - 2) 3D View only
+	*/
+	return (gp_stroke_edit_poll(C) && ED_operator_view3d_active(C));
+}
+
 /* ************ Stroke Hide selection Toggle ************** */
 
 static int gpencil_hideselect_toggle_exec(bContext *C, wmOperator *UNUSED(op))
 {
-	ToolSettings *ts = CTX_data_tool_settings(C);
-
-	if (ts == NULL)
+	View3D *v3d = CTX_wm_view3d(C);
+	if (v3d == NULL)
 		return OPERATOR_CANCELLED;
 
 	/* Just toggle alpha... */
-	if (ts->gp_sculpt.alpha > 0.0f) {
-		ts->gp_sculpt.alpha = 0.0f;
+	if (v3d->vertex_opacity > 0.0f) {
+		v3d->vertex_opacity = 0.0f;
 	}
 	else {
-		ts->gp_sculpt.alpha = 1.0f;
+		v3d->vertex_opacity = 1.0f;
 	}
 
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA, NULL);
@@ -220,7 +530,7 @@ static void gp_duplicate_points(const bGPDstroke *gps, ListBase *new_strokes, co
 
 				/* make a stupid copy first of the entire stroke (to get the flags too) */
 				gpsd = MEM_dupallocN(gps);
-				BLI_strncpy(gpsd->tmp_layerinfo, layername, sizeof(gpsd->tmp_layerinfo)); /* saves original layer name */
+				BLI_strncpy(gpsd->runtime.tmp_layerinfo, layername, sizeof(gpsd->runtime.tmp_layerinfo)); /* saves original layer name */
 
 				/* initialize triangle memory - will be calculated on next redraw */
 				gpsd->triangles = NULL;
@@ -232,6 +542,20 @@ static void gp_duplicate_points(const bGPDstroke *gps, ListBase *new_strokes, co
 				memcpy(gpsd->points, gps->points + start_idx, sizeof(bGPDspoint) * len);
 				gpsd->totpoints = len;
 
+				if (gps->dvert != NULL) {
+					gpsd->dvert = MEM_callocN(sizeof(MDeformVert) * len, "gps stroke weights copy");
+					memcpy(gpsd->dvert, gps->dvert + start_idx, sizeof(MDeformVert) * len);
+
+					/* Copy weights */
+					int e = start_idx;
+					for (int j = 0; j < gpsd->totpoints; j++) {
+						MDeformVert *dvert_dst = &gps->dvert[e];
+						MDeformVert *dvert_src = &gps->dvert[j];
+						dvert_dst->dw = MEM_dupallocN(dvert_src->dw);
+						e++;
+					}
+				}
+
 				/* add to temp buffer */
 				gpsd->next = gpsd->prev = NULL;
 				BLI_addtail(new_strokes, gpsd);
@@ -252,6 +576,11 @@ static int gp_duplicate_exec(bContext *C, wmOperator *op)
 		return OPERATOR_CANCELLED;
 	}
 
+	if (GPENCIL_MULTIEDIT_SESSIONS_ON(gpd)) {
+		BKE_report(op->reports, RPT_ERROR, "Operator not supported in multiframe edition");
+		return OPERATOR_CANCELLED;
+	}
+
 	/* for each visible (and editable) layer's selected strokes,
 	 * copy the strokes into a temporary buffer, then append
 	 * once all done
@@ -279,8 +608,12 @@ static int gp_duplicate_exec(bContext *C, wmOperator *op)
 
 					/* make direct copies of the stroke and its points */
 					gpsd = MEM_dupallocN(gps);
-					BLI_strncpy(gpsd->tmp_layerinfo, gpl->info, sizeof(gpsd->tmp_layerinfo));
+					BLI_strncpy(gpsd->runtime.tmp_layerinfo, gpl->info, sizeof(gpsd->runtime.tmp_layerinfo));
 					gpsd->points = MEM_dupallocN(gps->points);
+					if (gps->dvert != NULL) {
+						gpsd->dvert = MEM_dupallocN(gps->dvert);
+						BKE_gpencil_stroke_weights_duplicate(gps, gpsd);
+					}
 
 					/* triangle information - will be calculated on next redraw */
 					gpsd->flag |= GP_STROKE_RECALC_CACHES;
@@ -309,6 +642,7 @@ static int gp_duplicate_exec(bContext *C, wmOperator *op)
 	CTX_DATA_END;
 
 	/* updates */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -342,7 +676,7 @@ void GPENCIL_OT_duplicate(wmOperatorType *ot)
 /* NOTE: is exposed within the editors/gpencil module so that other tools can use it too */
 ListBase gp_strokes_copypastebuf = {NULL, NULL};
 
-/* Hash for hanging on to all the palette colors used by strokes in the buffer
+/* Hash for hanging on to all the colors used by strokes in the buffer
  *
  * This is needed to prevent dangling and unsafe pointers when pasting across datablocks,
  * or after a color used by a stroke in the buffer gets deleted (via user action or undo).
@@ -354,11 +688,11 @@ void ED_gpencil_strokes_copybuf_free(void)
 {
 	bGPDstroke *gps, *gpsn;
 
-	/* Free the palettes buffer
-	 * NOTE: This is done before the strokes so that the name ptrs (keys) are still safe
+	/* Free the colors buffer
+	 * NOTE: This is done before the strokes so that the ptrs are still safe
 	 */
 	if (gp_strokes_copypastebuf_colors) {
-		BLI_ghash_free(gp_strokes_copypastebuf_colors, NULL, MEM_freeN);
+		BLI_ghash_free(gp_strokes_copypastebuf_colors, NULL, NULL);
 		gp_strokes_copypastebuf_colors = NULL;
 	}
 
@@ -366,8 +700,15 @@ void ED_gpencil_strokes_copybuf_free(void)
 	for (gps = gp_strokes_copypastebuf.first; gps; gps = gpsn) {
 		gpsn = gps->next;
 
-		if (gps->points)    MEM_freeN(gps->points);
-		if (gps->triangles) MEM_freeN(gps->triangles);
+		if (gps->points) {
+			MEM_freeN(gps->points);
+		}
+		if (gps->dvert) {
+			BKE_gpencil_free_stroke_weights(gps);
+			MEM_freeN(gps->dvert);
+		}
+
+		MEM_SAFE_FREE(gps->triangles);
 
 		BLI_freelinkN(&gp_strokes_copypastebuf, gps);
 	}
@@ -378,38 +719,26 @@ void ED_gpencil_strokes_copybuf_free(void)
 /* Ensure that destination datablock has all the colours the pasted strokes need
  * Helper function for copy-pasting strokes
  */
-GHash *gp_copybuf_validate_colormap(bGPdata *gpd)
+GHash *gp_copybuf_validate_colormap(bContext *C)
 {
+	Main *bmain = CTX_data_main(C);
+	Object *ob = CTX_data_active_object(C);
 	GHash *new_colors = BLI_ghash_str_new("GPencil Paste Dst Colors");
 	GHashIterator gh_iter;
 
-	/* If there's no active palette yet (i.e. new datablock), add one */
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-	if (palette == NULL) {
-		palette = BKE_gpencil_palette_addnew(gpd, "Pasted Palette", true);
-	}
-
-	/* For each color, figure out what to map to... */
+	/* For each color, check if exist and add if not */
 	GHASH_ITER(gh_iter, gp_strokes_copypastebuf_colors) {
-		bGPDpalettecolor *palcolor;
-		char *name = BLI_ghashIterator_getKey(&gh_iter);
-
-		/* Look for existing color to map to */
-		/* XXX: What to do if same name but different color? Behaviour here should depend on a property? */
-		palcolor = BKE_gpencil_palettecolor_getbyname(palette, name);
-		if (palcolor == NULL) {
-			/* Doesn't Exist - Create new matching color for this palette */
-			/* XXX: This still doesn't fix the pasting across file boundaries problem... */
-			bGPDpalettecolor *src_color = BLI_ghashIterator_getValue(&gh_iter);
 
-			palcolor = MEM_dupallocN(src_color);
-			BLI_addtail(&palette->colors, palcolor);
+		int *key = BLI_ghashIterator_getKey(&gh_iter);
+		Material *ma = BLI_ghashIterator_getValue(&gh_iter);
 
-			BLI_uniquename(&palette->colors, palcolor, DATA_("GP Color"), '.', offsetof(bGPDpalettecolor, info), sizeof(palcolor->info));
+		if (BKE_gpencil_get_material_index(ob, ma) == 0) {
+			BKE_object_material_slot_add(bmain, ob);
+			assign_material(bmain, ob, ma, ob->totcol, BKE_MAT_ASSIGN_USERPREF);
 		}
 
 		/* Store this mapping (for use later when pasting) */
-		BLI_ghash_insert(new_colors, name, palcolor);
+		BLI_ghash_insert(new_colors, key, ma);
 	}
 
 	return new_colors;
@@ -420,6 +749,7 @@ GHash *gp_copybuf_validate_colormap(bGPdata *gpd)
 
 static int gp_strokes_copy_exec(bContext *C, wmOperator *op)
 {
+	Object *ob = CTX_data_active_object(C);
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
 
 	if (gpd == NULL) {
@@ -427,6 +757,11 @@ static int gp_strokes_copy_exec(bContext *C, wmOperator *op)
 		return OPERATOR_CANCELLED;
 	}
 
+	if (GPENCIL_MULTIEDIT_SESSIONS_ON(gpd)) {
+		BKE_report(op->reports, RPT_ERROR, "Operator not supported in multiframe edition");
+		return OPERATOR_CANCELLED;
+	}
+
 	/* clear the buffer first */
 	ED_gpencil_strokes_copybuf_free();
 
@@ -455,8 +790,12 @@ static int gp_strokes_copy_exec(bContext *C, wmOperator *op)
 
 					/* make direct copies of the stroke and its points */
 					gpsd = MEM_dupallocN(gps);
-					BLI_strncpy(gpsd->tmp_layerinfo, gpl->info, sizeof(gpsd->tmp_layerinfo)); /* saves original layer name */
+					BLI_strncpy(gpsd->runtime.tmp_layerinfo, gpl->info, sizeof(gpsd->runtime.tmp_layerinfo)); /* saves original layer name */
 					gpsd->points = MEM_dupallocN(gps->points);
+					if (gps->dvert != NULL) {
+						gpsd->dvert = MEM_dupallocN(gps->dvert);
+						BKE_gpencil_stroke_weights_duplicate(gps, gpsd);
+					}
 
 					/* triangles cache - will be recalculated on next redraw */
 					gpsd->flag |= GP_STROKE_RECALC_CACHES;
@@ -476,17 +815,15 @@ static int gp_strokes_copy_exec(bContext *C, wmOperator *op)
 	}
 	CTX_DATA_END;
 
-	/* Build up hash of colors used in these strokes, making copies of these to protect against dangling pointers */
+	/* Build up hash of material colors used in these strokes */
 	if (gp_strokes_copypastebuf.first) {
 		gp_strokes_copypastebuf_colors = BLI_ghash_str_new("GPencil CopyBuf Colors");
-
+		Material *ma = NULL;
 		for (bGPDstroke *gps = gp_strokes_copypastebuf.first; gps; gps = gps->next) {
 			if (ED_gpencil_stroke_can_use(C, gps)) {
-				if (BLI_ghash_haskey(gp_strokes_copypastebuf_colors, gps->colorname) == false) {
-					bGPDpalettecolor *color = MEM_dupallocN(gps->palcolor);
-
-					BLI_ghash_insert(gp_strokes_copypastebuf_colors, gps->colorname, color);
-					gps->palcolor = color;
+				ma = give_current_material(ob, gps->mat_nr + 1);
+				if (BLI_ghash_haskey(gp_strokes_copypastebuf_colors, &gps->mat_nr) == false) {
+					BLI_ghash_insert(gp_strokes_copypastebuf_colors, &gps->mat_nr, ma);
 				}
 			}
 		}
@@ -534,9 +871,11 @@ typedef enum eGP_PasteMode {
 
 static int gp_strokes_paste_exec(bContext *C, wmOperator *op)
 {
-	Scene *scene = CTX_data_scene(C);
+	Object *ob = CTX_data_active_object(C);
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
 	bGPDlayer *gpl = CTX_data_active_gpencil_layer(C); /* only use active for copy merge */
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
 	bGPDframe *gpf;
 
 	eGP_PasteMode type = RNA_enum_get(op->ptr, "type");
@@ -547,6 +886,10 @@ static int gp_strokes_paste_exec(bContext *C, wmOperator *op)
 		BKE_report(op->reports, RPT_ERROR, "No Grease Pencil data");
 		return OPERATOR_CANCELLED;
 	}
+	else if (GPENCIL_MULTIEDIT_SESSIONS_ON(gpd)) {
+		BKE_report(op->reports, RPT_ERROR, "Operator not supported in multiframe edition");
+		return OPERATOR_CANCELLED;
+	}
 	else if (BLI_listbase_is_empty(&gp_strokes_copypastebuf)) {
 		BKE_report(op->reports, RPT_ERROR, "No strokes to paste, select and copy some points before trying again");
 		return OPERATOR_CANCELLED;
@@ -599,14 +942,14 @@ static int gp_strokes_paste_exec(bContext *C, wmOperator *op)
 	CTX_DATA_END;
 
 	/* Ensure that all the necessary colors exist */
-	new_colors = gp_copybuf_validate_colormap(gpd);
+	new_colors = gp_copybuf_validate_colormap(C);
 
 	/* Copy over the strokes from the buffer (and adjust the colors) */
 	for (bGPDstroke *gps = gp_strokes_copypastebuf.first; gps; gps = gps->next) {
 		if (ED_gpencil_stroke_can_use(C, gps)) {
 			/* Need to verify if layer exists */
 			if (type != GP_COPY_MERGE) {
-				gpl = BLI_findstring(&gpd->layers, gps->tmp_layerinfo, offsetof(bGPDlayer, info));
+				gpl = BLI_findstring(&gpd->layers, gps->runtime.tmp_layerinfo, offsetof(bGPDlayer, info));
 				if (gpl == NULL) {
 					/* no layer - use active (only if layer deleted before paste) */
 					gpl = CTX_data_active_gpencil_layer(C);
@@ -618,28 +961,33 @@ static int gp_strokes_paste_exec(bContext *C, wmOperator *op)
 			 *       we are obliged to add a new frame if one
 			 *       doesn't exist already
 			 */
-			gpf = BKE_gpencil_layer_getframe(gpl, CFRA, true);
+			gpf = BKE_gpencil_layer_getframe(gpl, cfra_eval, true);
 			if (gpf) {
 				/* Create new stroke */
 				bGPDstroke *new_stroke = MEM_dupallocN(gps);
-				new_stroke->tmp_layerinfo[0] = '\0';
+				new_stroke->runtime.tmp_layerinfo[0] = '\0';
 
 				new_stroke->points = MEM_dupallocN(gps->points);
-
+				if (gps->dvert != NULL) {
+					new_stroke->dvert = MEM_dupallocN(gps->dvert);
+					BKE_gpencil_stroke_weights_duplicate(gps, new_stroke);
+				}
 				new_stroke->flag |= GP_STROKE_RECALC_CACHES;
 				new_stroke->triangles = NULL;
 
 				new_stroke->next = new_stroke->prev = NULL;
 				BLI_addtail(&gpf->strokes, new_stroke);
 
-				/* Fix color references */
-				BLI_assert(new_stroke->colorname[0] != '\0');
-				new_stroke->palcolor = BLI_ghash_lookup(new_colors, new_stroke->colorname);
-
-				BLI_assert(new_stroke->palcolor != NULL);
-				BLI_strncpy(new_stroke->colorname, new_stroke->palcolor->info, sizeof(new_stroke->colorname));
+				/* Remap material */
+				Material *ma = BLI_ghash_lookup(new_colors, &new_stroke->mat_nr);
+				if ((ma) && (BKE_gpencil_get_material_index(ob, ma) > 0)) {
+					gps->mat_nr = BKE_gpencil_get_material_index(ob, ma) - 1;
+					CLAMP_MIN(gps->mat_nr, 0);
+				}
+				else {
+					gps->mat_nr = 0; /* only if the color is not found */
+				}
 
-				/*new_stroke->flag |= GP_STROKE_RECALC_COLOR; */
 			}
 		}
 	}
@@ -648,6 +996,7 @@ static int gp_strokes_paste_exec(bContext *C, wmOperator *op)
 	BLI_ghash_free(new_colors, NULL, NULL);
 
 	/* updates */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -697,10 +1046,17 @@ static int gp_move_to_layer_invoke(bContext *C, wmOperator *op, const wmEvent *U
 static int gp_move_to_layer_exec(bContext *C, wmOperator *op)
 {
 	bGPdata *gpd = CTX_data_gpencil_data(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
 	bGPDlayer *target_layer = NULL;
 	ListBase strokes = {NULL, NULL};
 	int layer_num = RNA_enum_get(op->ptr, "layer");
 
+	if (GPENCIL_MULTIEDIT_SESSIONS_ON(gpd)) {
+		BKE_report(op->reports, RPT_ERROR, "Operator not supported in multiframe edition");
+		return OPERATOR_CANCELLED;
+	}
+
 	/* Get layer or create new one */
 	if (layer_num == -1) {
 		/* Create layer */
@@ -748,14 +1104,14 @@ static int gp_move_to_layer_exec(bContext *C, wmOperator *op)
 
 	/* Paste them all in one go */
 	if (strokes.first) {
-		Scene *scene = CTX_data_scene(C);
-		bGPDframe *gpf = BKE_gpencil_layer_getframe(target_layer, CFRA, true);
+		bGPDframe *gpf = BKE_gpencil_layer_getframe(target_layer, cfra_eval, true);
 
 		BLI_movelisttolist(&gpf->strokes, &strokes);
 		BLI_assert((strokes.first == strokes.last) && (strokes.first == NULL));
 	}
 
 	/* updates */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -804,8 +1160,10 @@ static bool UNUSED_FUNCTION(gp_blank_frame_add_poll)(bContext *C)
 
 static int gp_blank_frame_add_exec(bContext *C, wmOperator *op)
 {
-	Scene *scene = CTX_data_scene(C);
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+
 	bGPDlayer *active_gpl = BKE_gpencil_layer_getactive(gpd);
 
 	const bool all_layers = RNA_boolean_get(op->ptr, "all_layers");
@@ -826,7 +1184,7 @@ static int gp_blank_frame_add_exec(bContext *C, wmOperator *op)
 		}
 
 		/* 1) Check for an existing frame on the current frame */
-		bGPDframe *gpf = BKE_gpencil_layer_find_frame(gpl, CFRA);
+		bGPDframe *gpf = BKE_gpencil_layer_find_frame(gpl, cfra_eval);
 		if (gpf) {
 			/* Shunt all frames after (and including) the existing one later by 1-frame */
 			for (; gpf; gpf = gpf->next) {
@@ -835,11 +1193,12 @@ static int gp_blank_frame_add_exec(bContext *C, wmOperator *op)
 		}
 
 		/* 2) Now add a new frame, with nothing in it */
-		gpl->actframe = BKE_gpencil_layer_getframe(gpl, CFRA, GP_GETFRAME_ADD_NEW);
+		gpl->actframe = BKE_gpencil_layer_getframe(gpl, cfra_eval, GP_GETFRAME_ADD_NEW);
 	}
 	CTX_DATA_END;
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -876,10 +1235,13 @@ static bool gp_actframe_delete_poll(bContext *C)
 /* delete active frame - wrapper around API calls */
 static int gp_actframe_delete_exec(bContext *C, wmOperator *op)
 {
-	Scene *scene = CTX_data_scene(C);
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
 	bGPDlayer *gpl = BKE_gpencil_layer_getactive(gpd);
-	bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, CFRA, 0);
+
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+
+	bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, cfra_eval, 0);
 
 	/* if there's no existing Grease-Pencil data there, add some */
 	if (gpd == NULL) {
@@ -895,6 +1257,7 @@ static int gp_actframe_delete_exec(bContext *C, wmOperator *op)
 	BKE_gpencil_layer_delframe(gpl, gpf);
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -928,13 +1291,16 @@ static bool gp_actframe_delete_all_poll(bContext *C)
 
 static int gp_actframe_delete_all_exec(bContext *C, wmOperator *op)
 {
-	Scene *scene = CTX_data_scene(C);
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+
 	bool success = false;
 
 	CTX_DATA_BEGIN(C, bGPDlayer *, gpl, editable_gpencil_layers)
 	{
 		/* try to get the "active" frame - but only if it actually occurs on this frame */
-		bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, CFRA, 0);
+		bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, cfra_eval, 0);
 
 		if (gpf == NULL)
 			continue;
@@ -949,6 +1315,7 @@ static int gp_actframe_delete_all_exec(bContext *C, wmOperator *op)
 
 	/* updates */
 	if (success) {
+		DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 		WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 		return OPERATOR_FINISHED;
 	}
@@ -983,43 +1350,69 @@ typedef enum eGP_DeleteMode {
 	GP_DELETEOP_FRAME           = 2,
 } eGP_DeleteMode;
 
+typedef enum eGP_DissolveMode {
+	/* dissolve all selected points */
+	GP_DISSOLVE_POINTS = 0,
+	/* dissolve between selected points */
+	GP_DISSOLVE_BETWEEN = 1,
+	/* dissolve unselected points */
+	GP_DISSOLVE_UNSELECT = 2,
+} eGP_DissolveMode;
+
 /* ----------------------------------- */
 
 /* Delete selected strokes */
 static int gp_delete_selected_strokes(bContext *C)
 {
 	bool changed = false;
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	bool is_multiedit = (bool)GPENCIL_MULTIEDIT_SESSIONS_ON(gpd);
 
 	CTX_DATA_BEGIN(C, bGPDlayer *, gpl, editable_gpencil_layers)
 	{
-		bGPDframe *gpf = gpl->actframe;
-		bGPDstroke *gps, *gpsn;
+		bGPDframe *init_gpf = gpl->actframe;
+		if (is_multiedit) {
+			init_gpf = gpl->frames.first;
+		}
 
-		if (gpf == NULL)
-			continue;
+		for (bGPDframe *gpf = init_gpf; gpf; gpf = gpf->next) {
+			if ((gpf == gpl->actframe) || ((gpf->flag & GP_FRAME_SELECT) && (is_multiedit))) {
+				bGPDstroke *gps, *gpsn;
 
-		/* simply delete strokes which are selected */
-		for (gps = gpf->strokes.first; gps; gps = gpsn) {
-			gpsn = gps->next;
+				if (gpf == NULL)
+					continue;
 
-			/* skip strokes that are invalid for current view */
-			if (ED_gpencil_stroke_can_use(C, gps) == false)
-				continue;
+				/* simply delete strokes which are selected */
+				for (gps = gpf->strokes.first; gps; gps = gpsn) {
+					gpsn = gps->next;
 
-			/* free stroke if selected */
-			if (gps->flag & GP_STROKE_SELECT) {
-				/* free stroke memory arrays, then stroke itself */
-				if (gps->points) MEM_freeN(gps->points);
-				if (gps->triangles) MEM_freeN(gps->triangles);
-				BLI_freelinkN(&gpf->strokes, gps);
+					/* skip strokes that are invalid for current view */
+					if (ED_gpencil_stroke_can_use(C, gps) == false)
+						continue;
 
-				changed = true;
+					/* free stroke if selected */
+					if (gps->flag & GP_STROKE_SELECT) {
+						/* free stroke memory arrays, then stroke itself */
+						if (gps->points) {
+							MEM_freeN(gps->points);
+						}
+						if (gps->dvert) {
+							BKE_gpencil_free_stroke_weights(gps);
+							MEM_freeN(gps->dvert);
+						}
+						MEM_SAFE_FREE(gps->triangles);
+						BLI_freelinkN(&gpf->strokes, gps);
+
+						changed = true;
+					}
+				}
 			}
 		}
 	}
 	CTX_DATA_END;
 
 	if (changed) {
+		DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 		WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 		return OPERATOR_FINISHED;
 	}
@@ -1031,88 +1424,238 @@ static int gp_delete_selected_strokes(bContext *C)
 /* ----------------------------------- */
 
 /* Delete selected points but keep the stroke */
-static int gp_dissolve_selected_points(bContext *C)
+static int gp_dissolve_selected_points(bContext *C, eGP_DissolveMode mode)
 {
+	Object *ob = CTX_data_active_object(C);
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	bool is_multiedit = (bool)GPENCIL_MULTIEDIT_SESSIONS_ON(gpd);
 	bool changed = false;
+	int first = 0;
+	int last = 0;
 
 	CTX_DATA_BEGIN(C, bGPDlayer *, gpl, editable_gpencil_layers)
 	{
-		bGPDframe *gpf = gpl->actframe;
-		bGPDstroke *gps, *gpsn;
+		bGPDframe *init_gpf = gpl->actframe;
+		if (is_multiedit) {
+			init_gpf = gpl->frames.first;
+		}
 
-		if (gpf == NULL)
-			continue;
+		for (bGPDframe *gpf = init_gpf; gpf; gpf = gpf->next) {
+			if ((gpf == gpl->actframe) || ((gpf->flag & GP_FRAME_SELECT) && (is_multiedit))) {
 
-		/* simply delete points from selected strokes
-		 * NOTE: we may still have to remove the stroke if it ends up having no points!
-		 */
-		for (gps = gpf->strokes.first; gps; gps = gpsn) {
-			gpsn = gps->next;
+				bGPDstroke *gps, *gpsn;
 
-			/* skip strokes that are invalid for current view */
-			if (ED_gpencil_stroke_can_use(C, gps) == false)
-				continue;
-			/* check if the color is editable */
-			if (ED_gpencil_stroke_color_use(gpl, gps) == false)
-				continue;
+				if (gpf == NULL)
+					continue;
 
-			if (gps->flag & GP_STROKE_SELECT) {
-				bGPDspoint *pt;
-				int i;
+				/* simply delete points from selected strokes
+				 * NOTE: we may still have to remove the stroke if it ends up having no points!
+				 */
+				for (gps = gpf->strokes.first; gps; gps = gpsn) {
+					gpsn = gps->next;
+
+					/* skip strokes that are invalid for current view */
+					if (ED_gpencil_stroke_can_use(C, gps) == false)
+						continue;
+					/* check if the color is editable */
+					if (ED_gpencil_stroke_color_use(ob, gpl, gps) == false)
+						continue;
+
+					/* the stroke must have at least one point selected for any operator */
+					if (gps->flag & GP_STROKE_SELECT) {
+						bGPDspoint *pt;
+						MDeformVert *dvert = NULL;
+						int i;
+
+						int tot = gps->totpoints; /* number of points in new buffer */
+
+						/* first pass: count points to remove */
+						switch (mode) {
+							case GP_DISSOLVE_POINTS:
+								/* Count how many points are selected (i.e. how many to remove) */
+								for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
+									if (pt->flag & GP_SPOINT_SELECT) {
+										/* selected point - one of the points to remove */
+										tot--;
+									}
+								}
+								break;
+							case GP_DISSOLVE_BETWEEN:
+								/* need to find first and last point selected */
+								first = -1;
+								last = 0;
+								for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
+									if (pt->flag & GP_SPOINT_SELECT) {
+										if (first < 0) {
+											first = i;
+										}
+										last = i;
+									}
+								}
+								/* count unselected points in the range */
+								for (i = first, pt = gps->points + first; i < last; i++, pt++) {
+									if ((pt->flag & GP_SPOINT_SELECT) == 0) {
+										tot--;
+									}
+								}
+								break;
+							case GP_DISSOLVE_UNSELECT:
+								/* count number of unselected points */
+								for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
+									if ((pt->flag & GP_SPOINT_SELECT) == 0) {
+										tot--;
+									}
+								}
+								break;
+							default:
+								return false;
+								break;
+						}
 
-				int tot = gps->totpoints; /* number of points in new buffer */
+						/* if no points are left, we simply delete the entire stroke */
+						if (tot <= 0) {
+							/* remove the entire stroke */
+							if (gps->points) {
+								MEM_freeN(gps->points);
+							}
+							if (gps->dvert) {
+								BKE_gpencil_free_stroke_weights(gps);
+								MEM_freeN(gps->dvert);
+							}
+							if (gps->triangles) {
+								MEM_freeN(gps->triangles);
+							}
+							BLI_freelinkN(&gpf->strokes, gps);
+							DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+						}
+						else {
+							/* just copy all points to keep into a smaller buffer */
+							bGPDspoint *new_points = MEM_callocN(sizeof(bGPDspoint) * tot, "new gp stroke points copy");
+							bGPDspoint *npt = new_points;
 
-				/* First Pass: Count how many points are selected (i.e. how many to remove) */
-				for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
-					if (pt->flag & GP_SPOINT_SELECT) {
-						/* selected point - one of the points to remove */
-						tot--;
-					}
-				}
+							MDeformVert *new_dvert = NULL;
+							MDeformVert *ndvert = NULL;
 
-				/* if no points are left, we simply delete the entire stroke */
-				if (tot <= 0) {
-					/* remove the entire stroke */
-					MEM_freeN(gps->points);
-					if (gps->triangles) {
-						MEM_freeN(gps->triangles);
-					}
-					BLI_freelinkN(&gpf->strokes, gps);
-				}
-				else {
-					/* just copy all unselected into a smaller buffer */
-					bGPDspoint *new_points = MEM_callocN(sizeof(bGPDspoint) * tot, "new gp stroke points copy");
-					bGPDspoint *npt        = new_points;
+							if (gps->dvert != NULL) {
+								new_dvert = MEM_callocN(sizeof(MDeformVert) * tot, "new gp stroke weights copy");
+								ndvert = new_dvert;
+							}
 
-					for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
-						if ((pt->flag & GP_SPOINT_SELECT) == 0) {
-							*npt = *pt;
-							npt++;
-						}
-					}
+							switch (mode) {
+								case GP_DISSOLVE_POINTS:
+									(gps->dvert != NULL) ? dvert = gps->dvert : NULL;
+									for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
+										if ((pt->flag & GP_SPOINT_SELECT) == 0) {
+											*npt = *pt;
+											npt++;
+
+											if (gps->dvert != NULL) {
+												*ndvert = *dvert;
+												ndvert->dw = MEM_dupallocN(dvert->dw);
+												ndvert++;
+												dvert++;
+											}
+										}
+									}
+									break;
+								case GP_DISSOLVE_BETWEEN:
+									/* copy first segment */
+									(gps->dvert != NULL) ? dvert = gps->dvert : NULL;
+									for (i = 0, pt = gps->points; i < first; i++, pt++) {
+										*npt = *pt;
+										npt++;
+
+										if (gps->dvert != NULL) {
+											*ndvert = *dvert;
+											ndvert->dw = MEM_dupallocN(dvert->dw);
+											ndvert++;
+											dvert++;
+										}
+									}
+									/* copy segment (selected points) */
+									(gps->dvert != NULL) ? dvert = gps->dvert + first : NULL;
+									for (i = first, pt = gps->points + first; i < last; i++, pt++) {
+										if (pt->flag & GP_SPOINT_SELECT) {
+											*npt = *pt;
+											npt++;
+
+											if (gps->dvert != NULL) {
+												*ndvert = *dvert;
+												ndvert->dw = MEM_dupallocN(dvert->dw);
+												ndvert++;
+												dvert++;
+											}
+										}
+									}
+									/* copy last segment */
+									(gps->dvert != NULL) ? dvert = gps->dvert + last : NULL;
+									for (i = last, pt = gps->points + last; i < gps->totpoints; i++, pt++) {
+										*npt = *pt;
+										npt++;
+
+										if (gps->dvert != NULL) {
+											*ndvert = *dvert;
+											ndvert->dw = MEM_dupallocN(dvert->dw);
+											ndvert++;
+											dvert++;
+										}
+									}
+
+									break;
+								case GP_DISSOLVE_UNSELECT:
+									/* copy any selected point */
+									(gps->dvert != NULL) ? dvert = gps->dvert : NULL;
+									for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
+										if (pt->flag & GP_SPOINT_SELECT) {
+											*npt = *pt;
+											npt++;
+
+											if (gps->dvert != NULL) {
+												*ndvert = *dvert;
+												ndvert->dw = MEM_dupallocN(dvert->dw);
+												ndvert++;
+												dvert++;
+											}
+										}
+									}
+									break;
+							}
 
-					/* free the old buffer */
-					MEM_freeN(gps->points);
+							/* free the old buffer */
+							if (gps->points) {
+								MEM_freeN(gps->points);
+							}
+							if (gps->dvert) {
+								BKE_gpencil_free_stroke_weights(gps);
+								MEM_freeN(gps->dvert);
+							}
 
-					/* save the new buffer */
-					gps->points = new_points;
-					gps->totpoints = tot;
+							/* save the new buffer */
+							gps->points = new_points;
+							gps->dvert = new_dvert;
+							gps->totpoints = tot;
 
-					/* triangles cache needs to be recalculated */
-					gps->flag |= GP_STROKE_RECALC_CACHES;
-					gps->tot_triangles = 0;
+							/* triangles cache needs to be recalculated */
+							gps->flag |= GP_STROKE_RECALC_CACHES;
+							gps->tot_triangles = 0;
 
-					/* deselect the stroke, since none of its selected points will still be selected */
-					gps->flag &= ~GP_STROKE_SELECT;
-				}
+							/* deselect the stroke, since none of its selected points will still be selected */
+							gps->flag &= ~GP_STROKE_SELECT;
+							for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
+								pt->flag &= ~GP_SPOINT_SELECT;
+							}
+						}
 
-				changed = true;
+						changed = true;
+					}
+				}
 			}
 		}
 	}
 	CTX_DATA_END;
 
 	if (changed) {
+		DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 		WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 		return OPERATOR_FINISHED;
 	}
@@ -1146,17 +1689,17 @@ typedef struct tGPDeleteIsland {
  *      becomes much less
  * 2) Each island gets converted to a new stroke
  */
-void gp_stroke_delete_tagged_points(bGPDframe *gpf, bGPDstroke *gps, bGPDstroke *next_stroke, int tag_flags)
+void gp_stroke_delete_tagged_points(bGPDframe *gpf, bGPDstroke *gps, bGPDstroke *next_stroke,
+	int tag_flags, bool select)
 {
 	tGPDeleteIsland *islands = MEM_callocN(sizeof(tGPDeleteIsland) * (gps->totpoints + 1) / 2, "gp_point_islands");
 	bool in_island  = false;
 	int num_islands = 0;
 
-	bGPDspoint *pt;
-	int i;
 
 	/* First Pass: Identify start/end of islands */
-	for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
+	bGPDspoint *pt = gps->points;
+	for (int i = 0; i < gps->totpoints; i++, pt++) {
 		if (pt->flag & tag_flags) {
 			/* selected - stop accumulating to island */
 			in_island = false;
@@ -1198,11 +1741,26 @@ void gp_stroke_delete_tagged_points(bGPDframe *gpf, bGPDstroke *gps, bGPDstroke
 
 			/* Compute new buffer size (+ 1 needed as the endpoint index is "inclusive") */
 			new_stroke->totpoints = island->end_idx - island->start_idx + 1;
-			new_stroke->points    = MEM_callocN(sizeof(bGPDspoint) * new_stroke->totpoints, "gp delete stroke fragment");
 
-			/* Copy over the relevant points */
+			/* Copy over the relevant point data */
+			new_stroke->points    = MEM_callocN(sizeof(bGPDspoint) * new_stroke->totpoints, "gp delete stroke fragment");
 			memcpy(new_stroke->points, gps->points + island->start_idx, sizeof(bGPDspoint) * new_stroke->totpoints);
 
+			/* Copy over vertex weight data (if available) */
+			if (new_stroke->dvert != NULL) {
+				/* Copy over the relevant vertex-weight points */
+				new_stroke->dvert     = MEM_callocN(sizeof(MDeformVert) * new_stroke->totpoints, "gp delete stroke fragment weight");
+				memcpy(new_stroke->dvert, gps->dvert + island->start_idx, sizeof(MDeformVert) * new_stroke->totpoints);
+
+				/* Copy weights */
+				int e = island->start_idx;
+				for (int i = 0; i < new_stroke->totpoints; i++) {
+					MDeformVert *dvert_dst = &gps->dvert[e];
+					MDeformVert *dvert_src = &new_stroke->dvert[i];
+					dvert_dst->dw = MEM_dupallocN(dvert_src->dw);
+					e++;
+				}
+			}
 
 			/* Each island corresponds to a new stroke. We must adjust the
 			 * timings of these new strokes:
@@ -1222,6 +1780,11 @@ void gp_stroke_delete_tagged_points(bGPDframe *gpf, bGPDstroke *gps, bGPDstroke
 				pts = new_stroke->points;
 				for (j = 0; j < new_stroke->totpoints; j++, pts++) {
 					pts->time -= delta;
+					/* set flag for select again later */
+					if (select == true) {
+						pts->flag &= ~GP_SPOINT_SELECT;
+						pts->flag |= GP_SPOINT_TAG;
+					}
 				}
 			}
 
@@ -1239,53 +1802,70 @@ void gp_stroke_delete_tagged_points(bGPDframe *gpf, bGPDstroke *gps, bGPDstroke
 	MEM_freeN(islands);
 
 	/* Delete the old stroke */
-	MEM_freeN(gps->points);
+	if (gps->points) {
+		MEM_freeN(gps->points);
+	}
+	if (gps->dvert) {
+		BKE_gpencil_free_stroke_weights(gps);
+		MEM_freeN(gps->dvert);
+	}
 	if (gps->triangles) {
 		MEM_freeN(gps->triangles);
 	}
 	BLI_freelinkN(&gpf->strokes, gps);
 }
 
-
 /* Split selected strokes into segments, splitting on selected points */
 static int gp_delete_selected_points(bContext *C)
 {
+	Object *ob = CTX_data_active_object(C);
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	bool is_multiedit = (bool)GPENCIL_MULTIEDIT_SESSIONS_ON(gpd);
 	bool changed = false;
 
 	CTX_DATA_BEGIN(C, bGPDlayer *, gpl, editable_gpencil_layers)
 	{
-		bGPDframe *gpf = gpl->actframe;
-		bGPDstroke *gps, *gpsn;
+		bGPDframe *init_gpf = gpl->actframe;
+		if (is_multiedit) {
+			init_gpf = gpl->frames.first;
+		}
 
-		if (gpf == NULL)
-			continue;
+		for (bGPDframe *gpf = init_gpf; gpf; gpf = gpf->next) {
+			if ((gpf == gpl->actframe) || ((gpf->flag & GP_FRAME_SELECT) && (is_multiedit))) {
+				bGPDstroke *gps, *gpsn;
 
-		/* simply delete strokes which are selected */
-		for (gps = gpf->strokes.first; gps; gps = gpsn) {
-			gpsn = gps->next;
+				if (gpf == NULL)
+					continue;
 
-			/* skip strokes that are invalid for current view */
-			if (ED_gpencil_stroke_can_use(C, gps) == false)
-				continue;
-			/* check if the color is editable */
-			if (ED_gpencil_stroke_color_use(gpl, gps) == false)
-				continue;
+				/* simply delete strokes which are selected */
+				for (gps = gpf->strokes.first; gps; gps = gpsn) {
+					gpsn = gps->next;
 
+					/* skip strokes that are invalid for current view */
+					if (ED_gpencil_stroke_can_use(C, gps) == false)
+						continue;
+					/* check if the color is editable */
+					if (ED_gpencil_stroke_color_use(ob, gpl, gps) == false)
+						continue;
 
-			if (gps->flag & GP_STROKE_SELECT) {
-				/* deselect old stroke, since it will be used as template for the new strokes */
-				gps->flag &= ~GP_STROKE_SELECT;
 
-				/* delete unwanted points by splitting stroke into several smaller ones */
-				gp_stroke_delete_tagged_points(gpf, gps, gpsn, GP_SPOINT_SELECT);
+					if (gps->flag & GP_STROKE_SELECT) {
+						/* deselect old stroke, since it will be used as template for the new strokes */
+						gps->flag &= ~GP_STROKE_SELECT;
 
-				changed = true;
+						/* delete unwanted points by splitting stroke into several smaller ones */
+						gp_stroke_delete_tagged_points(gpf, gps, gpsn, GP_SPOINT_SELECT, false);
+
+						changed = true;
+					}
+				}
 			}
 		}
 	}
 	CTX_DATA_END;
 
 	if (changed) {
+		DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 		WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 		return OPERATOR_FINISHED;
 	}
@@ -1294,6 +1874,12 @@ static int gp_delete_selected_points(bContext *C)
 	}
 }
 
+/* simple wrapper to external call */
+int gp_delete_selected_point_wrap(bContext *C)
+{
+	return gp_delete_selected_points(C);
+}
+
 /* ----------------------------------- */
 
 static int gp_delete_exec(bContext *C, wmOperator *op)
@@ -1344,24 +1930,37 @@ void GPENCIL_OT_delete(wmOperatorType *ot)
 	ot->prop = RNA_def_enum(ot->srna, "type", prop_gpencil_delete_types, 0, "Type", "Method used for deleting Grease Pencil data");
 }
 
-static int gp_dissolve_exec(bContext *C, wmOperator *UNUSED(op))
+static int gp_dissolve_exec(bContext *C, wmOperator *op)
 {
-	return gp_dissolve_selected_points(C);
+	eGP_DissolveMode mode = RNA_enum_get(op->ptr, "type");
+
+	return gp_dissolve_selected_points(C, mode);
 }
 
 void GPENCIL_OT_dissolve(wmOperatorType *ot)
 {
+	static EnumPropertyItem prop_gpencil_dissolve_types[] = {
+		{ GP_DISSOLVE_POINTS, "POINTS", 0, "Dissolve", "Dissolve selected points" },
+		{ GP_DISSOLVE_BETWEEN, "BETWEEN", 0, "Dissolve Between", "Dissolve points between selected points" },
+		{ GP_DISSOLVE_UNSELECT, "UNSELECT", 0, "Dissolve Unselect", "Dissolve all unselected points" },
+		{ 0, NULL, 0, NULL, NULL }
+	};
+
 	/* identifiers */
 	ot->name = "Dissolve";
 	ot->idname = "GPENCIL_OT_dissolve";
 	ot->description = "Delete selected points without splitting strokes";
 
 	/* callbacks */
+	ot->invoke = WM_menu_invoke;
 	ot->exec = gp_dissolve_exec;
 	ot->poll = gp_stroke_edit_poll;
 
 	/* flags */
 	ot->flag = OPTYPE_UNDO | OPTYPE_REGISTER;
+
+	/* props */
+	ot->prop = RNA_def_enum(ot->srna, "type", prop_gpencil_dissolve_types, 0, "Type", "Method used for disolving Stroke points");
 }
 
 /* ****************** Snapping - Strokes <-> Cursor ************************ */
@@ -1384,6 +1983,8 @@ static int gp_snap_to_grid(bContext *C, wmOperator *UNUSED(op))
 {
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
 	RegionView3D *rv3d = CTX_wm_region_data(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);                                      \
+	Object *obact = CTX_data_active_object(C);
 	const float gridf = rv3d->gridview;
 
 	for (bGPDlayer *gpl = gpd->layers.first; gpl; gpl = gpl->next) {
@@ -1392,10 +1993,8 @@ static int gp_snap_to_grid(bContext *C, wmOperator *UNUSED(op))
 			bGPDframe *gpf = gpl->actframe;
 			float diff_mat[4][4];
 
-			/* calculate difference matrix if parent object */
-			if (gpl->parent != NULL) {
-				ED_gpencil_parent_location(gpl, diff_mat);
-			}
+			/* calculate difference matrix object */
+			ED_gpencil_parent_location(depsgraph, obact, gpd, gpl, diff_mat);
 
 			for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
 				bGPDspoint *pt;
@@ -1405,37 +2004,32 @@ static int gp_snap_to_grid(bContext *C, wmOperator *UNUSED(op))
 				if (ED_gpencil_stroke_can_use(C, gps) == false)
 					continue;
 				/* check if the color is editable */
-				if (ED_gpencil_stroke_color_use(gpl, gps) == false)
+				if (ED_gpencil_stroke_color_use(obact, gpl, gps) == false)
 					continue;
 
 				// TODO: if entire stroke is selected, offset entire stroke by same amount?
 				for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
 					/* only if point is selected */
 					if (pt->flag & GP_SPOINT_SELECT) {
-						if (gpl->parent == NULL) {
-							pt->x = gridf * floorf(0.5f + pt->x / gridf);
-							pt->y = gridf * floorf(0.5f + pt->y / gridf);
-							pt->z = gridf * floorf(0.5f + pt->z / gridf);
-						}
-						else {
-							/* apply parent transformations */
-							float fpt[3];
-							mul_v3_m4v3(fpt, diff_mat, &pt->x);
+						/* apply parent transformations */
+						float fpt[3];
+						mul_v3_m4v3(fpt, diff_mat, &pt->x);
 
-							fpt[0] = gridf * floorf(0.5f + fpt[0] / gridf);
-							fpt[1] = gridf * floorf(0.5f + fpt[1] / gridf);
-							fpt[2] = gridf * floorf(0.5f + fpt[2] / gridf);
+						fpt[0] = gridf * floorf(0.5f + fpt[0] / gridf);
+						fpt[1] = gridf * floorf(0.5f + fpt[1] / gridf);
+						fpt[2] = gridf * floorf(0.5f + fpt[2] / gridf);
 
-							/* return data */
-							copy_v3_v3(&pt->x, fpt);
-							gp_apply_parent_point(gpl, pt);
-						}
+						/* return data */
+						copy_v3_v3(&pt->x, fpt);
+						gp_apply_parent_point(depsgraph, obact, gpd, gpl, pt);
 					}
 				}
 			}
 		}
 	}
 
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	DEG_id_tag_update(&obact->id, DEG_TAG_COPY_ON_WRITE);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 	return OPERATOR_FINISHED;
 }
@@ -1463,6 +2057,8 @@ static int gp_snap_to_cursor(bContext *C, wmOperator *op)
 
 	Scene *scene = CTX_data_scene(C);
 	View3D *v3d = CTX_wm_view3d(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);                                      \
+	Object *obact = CTX_data_active_object(C);                                          \
 
 	const bool use_offset = RNA_boolean_get(op->ptr, "use_offset");
 	const float *cursor_global = ED_view3d_cursor3d_get(scene, v3d)->location;
@@ -1473,10 +2069,8 @@ static int gp_snap_to_cursor(bContext *C, wmOperator *op)
 			bGPDframe *gpf = gpl->actframe;
 			float diff_mat[4][4];
 
-			/* calculate difference matrix if parent object */
-			if (gpl->parent != NULL) {
-				ED_gpencil_parent_location(gpl, diff_mat);
-			}
+			/* calculate difference matrix */
+			ED_gpencil_parent_location(depsgraph, obact, gpd, gpl, diff_mat);
 
 			for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
 				bGPDspoint *pt;
@@ -1486,7 +2080,7 @@ static int gp_snap_to_cursor(bContext *C, wmOperator *op)
 				if (ED_gpencil_stroke_can_use(C, gps) == false)
 					continue;
 				/* check if the color is editable */
-				if (ED_gpencil_stroke_color_use(gpl, gps) == false)
+				if (ED_gpencil_stroke_color_use(obact, gpl, gps) == false)
 					continue;
 				/* only continue if this stroke is selected (editable doesn't guarantee this)... */
 				if ((gps->flag & GP_STROKE_SELECT) == 0)
@@ -1509,9 +2103,7 @@ static int gp_snap_to_cursor(bContext *C, wmOperator *op)
 					for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
 						if (pt->flag & GP_SPOINT_SELECT) {
 							copy_v3_v3(&pt->x, cursor_global);
-							if (gpl->parent != NULL) {
-								gp_apply_parent_point(gpl, pt);
-							}
+							gp_apply_parent_point(depsgraph, obact, gpd, gpl, pt);
 						}
 					}
 				}
@@ -1520,6 +2112,8 @@ static int gp_snap_to_cursor(bContext *C, wmOperator *op)
 		}
 	}
 
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	DEG_id_tag_update(&obact->id, DEG_TAG_COPY_ON_WRITE);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 	return OPERATOR_FINISHED;
 }
@@ -1551,6 +2145,8 @@ static int gp_snap_cursor_to_sel(bContext *C, wmOperator *UNUSED(op))
 
 	Scene *scene = CTX_data_scene(C);
 	View3D *v3d = CTX_wm_view3d(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);                                      \
+	Object *obact = CTX_data_active_object(C);                                          \
 
 	float *cursor = ED_view3d_cursor3d_get(scene, v3d)->location;
 	float centroid[3] = {0.0f};
@@ -1566,10 +2162,8 @@ static int gp_snap_cursor_to_sel(bContext *C, wmOperator *UNUSED(op))
 			bGPDframe *gpf = gpl->actframe;
 			float diff_mat[4][4];
 
-			/* calculate difference matrix if parent object */
-			if (gpl->parent != NULL) {
-				ED_gpencil_parent_location(gpl, diff_mat);
-			}
+			/* calculate difference matrix */
+			ED_gpencil_parent_location(depsgraph, obact, gpd, gpl, diff_mat);
 
 			for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
 				bGPDspoint *pt;
@@ -1579,7 +2173,7 @@ static int gp_snap_cursor_to_sel(bContext *C, wmOperator *UNUSED(op))
 				if (ED_gpencil_stroke_can_use(C, gps) == false)
 					continue;
 				/* check if the color is editable */
-				if (ED_gpencil_stroke_color_use(gpl, gps) == false)
+				if (ED_gpencil_stroke_color_use(obact, gpl, gps) == false)
 					continue;
 				/* only continue if this stroke is selected (editable doesn't guarantee this)... */
 				if ((gps->flag & GP_STROKE_SELECT) == 0)
@@ -1587,18 +2181,13 @@ static int gp_snap_cursor_to_sel(bContext *C, wmOperator *UNUSED(op))
 
 				for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
 					if (pt->flag & GP_SPOINT_SELECT) {
-						if (gpl->parent == NULL) {
-							add_v3_v3(centroid, &pt->x);
-							minmax_v3v3_v3(min, max, &pt->x);
-						}
-						else {
-							/* apply parent transformations */
-							float fpt[3];
-							mul_v3_m4v3(fpt, diff_mat, &pt->x);
+						/* apply parent transformations */
+						float fpt[3];
+						mul_v3_m4v3(fpt, diff_mat, &pt->x);
 
 							add_v3_v3(centroid, fpt);
-							minmax_v3v3_v3(min, max, fpt);
-						}
+						minmax_v3v3_v3(min, max, fpt);
+
 						count++;
 					}
 				}
@@ -1616,7 +2205,9 @@ static int gp_snap_cursor_to_sel(bContext *C, wmOperator *UNUSED(op))
 	}
 
 
-	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+	DEG_id_tag_update(&scene->id, DEG_TAG_COPY_ON_WRITE);
+	WM_event_add_notifier(C, NC_SPACE | ND_SPACE_VIEW3D, v3d);
+
 	return OPERATOR_FINISHED;
 }
 
@@ -1650,13 +2241,20 @@ static int gp_stroke_apply_thickness_exec(bContext *C, wmOperator *UNUSED(op))
 	for (bGPDframe *gpf = gpl->frames.first; gpf; gpf = gpf->next) {
 		for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
 			/* Apply thickness */
-			gps->thickness = gps->thickness + gpl->thickness;
+			if ((gps->thickness == 0) && (gpl->line_change == 0)) {
+				gps->thickness = gpl->thickness;
+			}
+			else {
+				gps->thickness = gps->thickness + gpl->line_change;
+			}
 		}
 	}
 	/* clear value */
 	gpl->thickness = 0.0f;
+	gpl->line_change = 0;
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -1685,6 +2283,8 @@ enum {
 static int gp_stroke_cyclical_set_exec(bContext *C, wmOperator *op)
 {
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	Object *ob = CTX_data_active_object(C);
+
 	const int type = RNA_enum_get(op->ptr, "type");
 
 	/* sanity checks */
@@ -1698,13 +2298,13 @@ static int gp_stroke_cyclical_set_exec(bContext *C, wmOperator *op)
 			continue;
 
 		for (bGPDstroke *gps = gpl->actframe->strokes.last; gps; gps = gps->prev) {
-			bGPDpalettecolor *palcolor = gps->palcolor;
+			MaterialGPencilStyle *gp_style = BKE_material_gpencil_settings_get(ob, gps->mat_nr + 1);
 
 			/* skip strokes that are not selected or invalid for current view */
 			if (((gps->flag & GP_STROKE_SELECT) == 0) || ED_gpencil_stroke_can_use(C, gps) == false)
 				continue;
 			/* skip hidden or locked colors */
-			if (!palcolor || (palcolor->flag & PC_COLOR_HIDE) || (palcolor->flag & PC_COLOR_LOCKED))
+			if (!gp_style || (gp_style->flag & GP_STYLE_COLOR_HIDE) || (gp_style->flag & GP_STYLE_COLOR_LOCKED))
 				continue;
 
 			switch (type) {
@@ -1729,6 +2329,7 @@ static int gp_stroke_cyclical_set_exec(bContext *C, wmOperator *op)
 	CTX_DATA_END;
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -1809,15 +2410,18 @@ static void gpencil_flip_stroke(bGPDstroke *gps)
 }
 
 /* Helper: copy point between strokes */
-static void gpencil_stroke_copy_point(bGPDstroke *gps, bGPDspoint *point, float delta[3],
+static void gpencil_stroke_copy_point(bGPDstroke *gps, bGPDspoint *point, int idx, float delta[3],
                                       float pressure, float strength, float deltatime)
 {
 	bGPDspoint *newpoint;
 
 	gps->points = MEM_reallocN(gps->points, sizeof(bGPDspoint) * (gps->totpoints + 1));
+	if (gps->dvert != NULL) {
+		gps->dvert = MEM_reallocN(gps->dvert, sizeof(MDeformVert) * (gps->totpoints + 1));
+	}
 	gps->totpoints++;
-
 	newpoint = &gps->points[gps->totpoints - 1];
+
 	newpoint->x = point->x * delta[0];
 	newpoint->y = point->y * delta[1];
 	newpoint->z = point->z * delta[2];
@@ -1825,6 +2429,14 @@ static void gpencil_stroke_copy_point(bGPDstroke *gps, bGPDspoint *point, float
 	newpoint->pressure = pressure;
 	newpoint->strength = strength;
 	newpoint->time = point->time + deltatime;
+
+	if (gps->dvert != NULL) {
+		MDeformVert *dvert = &gps->dvert[idx];
+		MDeformVert *newdvert = &gps->dvert[gps->totpoints - 1];
+
+		newdvert->totweight = dvert->totweight;
+		newdvert->dw = MEM_dupallocN(dvert->dw);
+	}
 }
 
 /* Helper: join two strokes using the shortest distance (reorder stroke if necessary ) */
@@ -1870,18 +2482,18 @@ static void gpencil_stroke_join_strokes(bGPDstroke *gps_a, bGPDstroke *gps_b, co
 		/* 1st: add one tail point to start invisible area */
 		point = gps_a->points[gps_a->totpoints - 1];
 		deltatime = point.time;
-		gpencil_stroke_copy_point(gps_a, &point, delta, 0.0f, 0.0f, 0.0f);
+		gpencil_stroke_copy_point(gps_a, &point, gps_a->totpoints - 1, delta, 0.0f, 0.0f, 0.0f);
 
 		/* 2nd: add one head point to finish invisible area */
 		point = gps_b->points[0];
-		gpencil_stroke_copy_point(gps_a, &point, delta, 0.0f, 0.0f, deltatime);
+		gpencil_stroke_copy_point(gps_a, &point, 0, delta, 0.0f, 0.0f, deltatime);
 	}
 
 	/* 3rd: add all points */
 	for (i = 0, pt = gps_b->points; i < gps_b->totpoints && pt; i++, pt++) {
 		/* check if still room in buffer */
 		if (gps_a->totpoints <= GP_STROKE_BUFFER_MAX - 2) {
-			gpencil_stroke_copy_point(gps_a, pt, delta, pt->pressure, pt->strength, deltatime);
+			gpencil_stroke_copy_point(gps_a, pt, i, delta, pt->pressure, pt->strength, deltatime);
 		}
 	}
 }
@@ -1891,8 +2503,7 @@ static int gp_stroke_join_exec(bContext *C, wmOperator *op)
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
 	bGPDlayer *activegpl = BKE_gpencil_layer_getactive(gpd);
 	bGPDstroke *gps, *gpsn;
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-	bGPDpalettecolor *palcolor = BKE_gpencil_palettecolor_getactive(palette);
+	Object *ob = CTX_data_active_object(C);
 
 	bGPDframe *gpf_a = NULL;
 	bGPDstroke *stroke_a = NULL;
@@ -1928,7 +2539,7 @@ static int gp_stroke_join_exec(bContext *C, wmOperator *op)
 					continue;
 				}
 				/* check if the color is editable */
-				if (ED_gpencil_stroke_color_use(gpl, gps) == false) {
+				if (ED_gpencil_stroke_color_use(ob, gpl, gps) == false) {
 					continue;
 				}
 
@@ -1948,15 +2559,17 @@ static int gp_stroke_join_exec(bContext *C, wmOperator *op)
 					if (new_stroke == NULL) {
 						new_stroke = MEM_dupallocN(stroke_a);
 						new_stroke->points = MEM_dupallocN(stroke_a->points);
+						if (stroke_a->dvert != NULL) {
+							new_stroke->dvert = MEM_dupallocN(stroke_a->dvert);
+							BKE_gpencil_stroke_weights_duplicate(stroke_a, new_stroke);
+						}
 						new_stroke->triangles = NULL;
 						new_stroke->tot_triangles = 0;
 						new_stroke->flag |= GP_STROKE_RECALC_CACHES;
 
 						/* if new, set current color */
 						if (type == GP_STROKE_JOINCOPY) {
-							new_stroke->palcolor = palcolor;
-							BLI_strncpy(new_stroke->colorname, palcolor->info, sizeof(new_stroke->colorname));
-							new_stroke->flag |= GP_STROKE_RECALC_COLOR;
+							new_stroke->mat_nr = stroke_a->mat_nr;
 						}
 					}
 
@@ -1995,6 +2608,7 @@ static int gp_stroke_join_exec(bContext *C, wmOperator *op)
 	}
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -2030,6 +2644,7 @@ void GPENCIL_OT_stroke_join(wmOperatorType *ot)
 static int gp_stroke_flip_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	Object *ob = CTX_data_active_object(C);
 
 	/* sanity checks */
 	if (ELEM(NULL, gpd))
@@ -2049,7 +2664,7 @@ static int gp_stroke_flip_exec(bContext *C, wmOperator *UNUSED(op))
 					continue;
 				}
 				/* check if the color is editable */
-				if (ED_gpencil_stroke_color_use(gpl, gps) == false) {
+				if (ED_gpencil_stroke_color_use(ob, gpl, gps) == false) {
 					continue;
 				}
 
@@ -2061,6 +2676,7 @@ static int gp_stroke_flip_exec(bContext *C, wmOperator *UNUSED(op))
 	CTX_DATA_END;
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -2084,33 +2700,42 @@ void GPENCIL_OT_stroke_flip(wmOperatorType *ot)
 /* ***************** Reproject Strokes ********************** */
 
 typedef enum eGP_ReprojectModes {
+	/* Axis (equal to lock axis) */
+	GP_REPROJECT_AXIS = 0,
 	/* On same plane, parallel to viewplane */
-	GP_REPROJECT_PLANAR = 0,
+	GP_REPROJECT_PLANAR,
 	/* Reprojected on to the scene geometry */
 	GP_REPROJECT_SURFACE,
 } eGP_ReprojectModes;
 
-static bool gp_strokes_reproject_poll(bContext *C)
-{
-	/* 2 Requirements:
-	 *  - 1) Editable GP data
-	 *  - 2) 3D View only (2D editors don't have projection issues)
-	 */
-	return (gp_stroke_edit_poll(C) && ED_operator_view3d_active(C));
-}
-
 static int gp_strokes_reproject_exec(bContext *C, wmOperator *op)
 {
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
 	Scene *scene = CTX_data_scene(C);
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	Object *ob = CTX_data_active_object(C);
+	ScrArea *sa = CTX_wm_area(C);
+	ARegion *ar = CTX_wm_region(C);
+	RegionView3D *rv3d = ar->regiondata;
+	View3D *v3d = sa->spacedata.first;
+
 	GP_SpaceConversion gsc = {NULL};
-	eGP_ReprojectModes mode = RNA_boolean_get(op->ptr, "type");
+	eGP_ReprojectModes mode = RNA_enum_get(op->ptr, "type");
+
+	int lock_axis = ts->gp_sculpt.lock_axis;
+	float origin[3];
+
+	if ((mode == GP_REPROJECT_AXIS) && (lock_axis == GP_LOCKAXIS_NONE)) {
+		BKE_report(op->reports, RPT_ERROR, "To reproject by axis, a lock axis must be set before");
+		return OPERATOR_CANCELLED;
+	}
 
 	/* init space conversion stuff */
 	gp_point_conversion_init(C, &gsc);
 
 	/* init autodist for geometry projection */
 	if (mode == GP_REPROJECT_SURFACE) {
-		struct Depsgraph *depsgraph = CTX_data_depsgraph(C);
 		view3d_region_operator_needs_opengl(CTX_wm_window(C), gsc.ar);
 		ED_view3d_autodist_init(depsgraph, gsc.ar, CTX_wm_view3d(C), 0);
 	}
@@ -2127,9 +2752,7 @@ static int gp_strokes_reproject_exec(bContext *C, wmOperator *op)
 
 			/* Compute inverse matrix for unapplying parenting once instead of doing per-point */
 			/* TODO: add this bit to the iteration macro? */
-			if (gpl->parent) {
-				invert_m4_m4(inverse_diff_mat, diff_mat);
-			}
+			invert_m4_m4(inverse_diff_mat, diff_mat);
 
 			/* Adjust each point */
 			for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
@@ -2140,19 +2763,28 @@ static int gp_strokes_reproject_exec(bContext *C, wmOperator *op)
 				 *       coordinates, resulting in lost precision, which in turn causes stairstepping
 				 *       artifacts in the final points.
 				 */
-				if (gpl->parent == NULL) {
-					gp_point_to_xy_fl(&gsc, gps, pt, &xy[0], &xy[1]);
-				}
-				else {
-					bGPDspoint pt2;
-					gp_point_to_parent_space(pt, diff_mat, &pt2);
-					gp_point_to_xy_fl(&gsc, gps, &pt2, &xy[0], &xy[1]);
+				bGPDspoint pt2;
+				gp_point_to_parent_space(pt, diff_mat, &pt2);
+				gp_point_to_xy_fl(&gsc, gps, &pt2, &xy[0], &xy[1]);
+
+				/* Project stroke in the axis locked */
+				if (mode == GP_REPROJECT_AXIS) {
+					if (lock_axis > GP_LOCKAXIS_NONE) {
+						ED_gp_get_drawing_reference(v3d, scene, ob, gpl,
+							ts->gpencil_v3d_align, origin);
+						ED_gp_project_point_to_plane(ob, rv3d, origin,
+							lock_axis - 1, &pt2);
+
+						copy_v3_v3(&pt->x, &pt2.x);
+
+						/* apply parent again */
+						gp_apply_parent_point(depsgraph, ob, gpd, gpl, pt);
+					}
 				}
-
 				/* Project screenspace back to 3D space (from current perspective)
 				 * so that all points have been treated the same way
 				 */
-				if (mode == GP_REPROJECT_PLANAR) {
+				else if (mode == GP_REPROJECT_PLANAR) {
 					/* Planar - All on same plane parallel to the viewplane */
 					gp_point_xy_to_3d(&gsc, scene, xy, &pt->x);
 				}
@@ -2175,7 +2807,7 @@ static int gp_strokes_reproject_exec(bContext *C, wmOperator *op)
 				}
 
 				/* Unapply parent corrections */
-				if (gpl->parent) {
+				if (mode != GP_REPROJECT_AXIS) {
 					mul_m4_v3(inverse_diff_mat, &pt->x);
 				}
 			}
@@ -2183,6 +2815,7 @@ static int gp_strokes_reproject_exec(bContext *C, wmOperator *op)
 	}
 	GP_EDITABLE_STROKES_END;
 
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 	return OPERATOR_FINISHED;
 }
@@ -2190,6 +2823,9 @@ static int gp_strokes_reproject_exec(bContext *C, wmOperator *op)
 void GPENCIL_OT_reproject(wmOperatorType *ot)
 {
 	static const EnumPropertyItem reproject_type[] = {
+		{ GP_REPROJECT_AXIS, "AXIS", 0, "Axis",
+		"Reproject the strokes using the current lock axis configuration. This is the same projection using while"
+		"drawing new strokes" },
 		{GP_REPROJECT_PLANAR, "PLANAR", 0, "Planar",
 		 "Reproject the strokes to end up on the same plane, as if drawn from the current viewpoint "
 		 "using 'Cursor' Stroke Placement"},
@@ -2208,10 +2844,10 @@ void GPENCIL_OT_reproject(wmOperatorType *ot)
 	/* callbacks */
 	ot->invoke = WM_menu_invoke;
 	ot->exec = gp_strokes_reproject_exec;
-	ot->poll = gp_strokes_reproject_poll;
+	ot->poll = gp_strokes_edit3d_poll;
 
 	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_USE_EVAL_DATA;
 
 	/* properties */
 	ot->prop = RNA_def_enum(ot->srna, "type", reproject_type, GP_REPROJECT_PLANAR, "Projection Type", "");
@@ -2229,7 +2865,7 @@ static int gp_count_subdivision_cuts(bGPDstroke *gps)
 		if (pt->flag & GP_SPOINT_SELECT) {
 			if (i + 1 < gps->totpoints) {
 				if (gps->points[i + 1].flag & GP_SPOINT_SELECT) {
-					++totnewpoints;
+					totnewpoints++;
 				}
 			}
 		}
@@ -2237,6 +2873,7 @@ static int gp_count_subdivision_cuts(bGPDstroke *gps)
 
 	return totnewpoints;
 }
+
 static int gp_stroke_subdivide_exec(bContext *C, wmOperator *op)
 {
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
@@ -2267,6 +2904,9 @@ static int gp_stroke_subdivide_exec(bContext *C, wmOperator *op)
 				/* resize the points arrys */
 				gps->totpoints += totnewpoints;
 				gps->points = MEM_recallocN(gps->points, sizeof(*gps->points) * gps->totpoints);
+				if (gps->dvert != NULL) {
+					gps->dvert = MEM_recallocN(gps->dvert, sizeof(*gps->dvert) * gps->totpoints);
+				}
 				gps->flag |= GP_STROKE_RECALC_CACHES;
 
 				/* loop and interpolate */
@@ -2275,19 +2915,27 @@ static int gp_stroke_subdivide_exec(bContext *C, wmOperator *op)
 					bGPDspoint *pt = &temp_points[i];
 					bGPDspoint *pt_final = &gps->points[i2];
 
+					MDeformVert *dvert_final = &gps->dvert[i2];
+
 					/* copy current point */
 					copy_v3_v3(&pt_final->x, &pt->x);
 					pt_final->pressure = pt->pressure;
 					pt_final->strength = pt->strength;
 					pt_final->time = pt->time;
 					pt_final->flag = pt->flag;
-					++i2;
+
+					dvert_final->totweight = 0;
+					dvert_final->dw = NULL;
+					i2++;
 
 					/* if next point is selected add a half way point */
 					if (pt->flag & GP_SPOINT_SELECT) {
 						if (i + 1 < oldtotpoints) {
 							if (temp_points[i + 1].flag & GP_SPOINT_SELECT) {
 								pt_final = &gps->points[i2];
+								if (gps->dvert != NULL) {
+									dvert_final = &gps->dvert[i2];
+								}
 								/* Interpolate all values */
 								bGPDspoint *next = &temp_points[i + 1];
 								interp_v3_v3v3(&pt_final->x, &pt->x, &next->x, 0.5f);
@@ -2296,7 +2944,11 @@ static int gp_stroke_subdivide_exec(bContext *C, wmOperator *op)
 								CLAMP(pt_final->strength, GPENCIL_STRENGTH_MIN, 1.0f);
 								pt_final->time = interpf(pt->time, next->time, 0.5f);
 								pt_final->flag |= GP_SPOINT_SELECT;
-								++i2;
+
+								dvert_final->totweight = 0;
+								dvert_final->dw = NULL;
+
+								i2++;
 							}
 						}
 					}
@@ -2309,6 +2961,7 @@ static int gp_stroke_subdivide_exec(bContext *C, wmOperator *op)
 	GP_EDITABLE_STROKES_END;
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -2328,7 +2981,7 @@ void GPENCIL_OT_stroke_subdivide(wmOperatorType *ot)
 	ot->poll = gp_active_layer_poll;
 
 	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_BLOCKING;
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
 
 	/* properties */
 	prop = RNA_def_int(ot->srna, "number_cuts", 1, 1, 10, "Number of Cuts", "", 1, 5);
@@ -2336,3 +2989,414 @@ void GPENCIL_OT_stroke_subdivide(wmOperatorType *ot)
 	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
 
 }
+
+/* ** simplify stroke *** */
+static int gp_stroke_simplify_exec(bContext *C, wmOperator *op)
+{
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	float factor = RNA_float_get(op->ptr, "factor");
+
+	/* sanity checks */
+	if (ELEM(NULL, gpd))
+		return OPERATOR_CANCELLED;
+
+	/* Go through each editable + selected stroke */
+	GP_EDITABLE_STROKES_BEGIN(C, gpl, gps)
+	{
+		if (gps->flag & GP_STROKE_SELECT) {
+			/* simplify stroke using Ramer-Douglas-Peucker algorithm */
+			BKE_gpencil_simplify_stroke(gps, factor);
+		}
+	}
+	GP_EDITABLE_STROKES_END;
+
+	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+
+	return OPERATOR_FINISHED;
+}
+
+void GPENCIL_OT_stroke_simplify(wmOperatorType *ot)
+{
+	PropertyRNA *prop;
+
+	/* identifiers */
+	ot->name = "Simplify Stroke";
+	ot->idname = "GPENCIL_OT_stroke_simplify";
+	ot->description = "Simplify selected stroked reducing number of points";
+
+	/* api callbacks */
+	ot->exec = gp_stroke_simplify_exec;
+	ot->poll = gp_active_layer_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* properties */
+	prop = RNA_def_float(ot->srna, "factor", 0.0f, 0.0f, 100.0f, "Factor", "", 0.0f, 100.0f);
+	/* avoid re-using last var */
+	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
+}
+
+/* ** simplify stroke using fixed algorith *** */
+static int gp_stroke_simplify_fixed_exec(bContext *C, wmOperator *op)
+{
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	int steps = RNA_int_get(op->ptr, "step");
+
+	/* sanity checks */
+	if (ELEM(NULL, gpd))
+		return OPERATOR_CANCELLED;
+
+	/* Go through each editable + selected stroke */
+	GP_EDITABLE_STROKES_BEGIN(C, gpl, gps)
+	{
+		if (gps->flag & GP_STROKE_SELECT) {
+			for (int i = 0; i < steps; i++) {
+				BKE_gpencil_simplify_fixed(gps);
+			}
+		}
+	}
+	GP_EDITABLE_STROKES_END;
+
+	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+
+	return OPERATOR_FINISHED;
+}
+
+void GPENCIL_OT_stroke_simplify_fixed(wmOperatorType *ot)
+{
+	PropertyRNA *prop;
+
+	/* identifiers */
+	ot->name = "Simplify Fixed Stroke";
+	ot->idname = "GPENCIL_OT_stroke_simplify_fixed";
+	ot->description = "Simplify selected stroked reducing number of points using fixed algorithm";
+
+	/* api callbacks */
+	ot->exec = gp_stroke_simplify_fixed_exec;
+	ot->poll = gp_active_layer_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* properties */
+	prop = RNA_def_int(ot->srna, "step", 1, 1, 100, "Steps", "Number of simplify steps", 1, 10);
+
+	/* avoid re-using last var */
+	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
+
+}
+
+/* ***************** Separate Strokes ********************** */
+typedef enum eGP_SeparateModes {
+	/* Points */
+	GP_SEPARATE_POINT = 0,
+	/* Selected Strokes */
+	GP_SEPARATE_STROKE,
+	/* Current Layer */
+	GP_SEPARATE_LAYER,
+} eGP_SeparateModes;
+
+static int gp_stroke_separate_exec(bContext *C, wmOperator *op)
+{
+	Base *base_new;
+	Main *bmain = CTX_data_main(C);
+	Scene *scene = CTX_data_scene(C);
+	ViewLayer *view_layer = CTX_data_view_layer(C);
+	Base *base_old = CTX_data_active_base(C);
+	bGPdata *gpd_src = ED_gpencil_data_get_active(C);
+	Object *ob = CTX_data_active_object(C);
+
+	Object *ob_dst = NULL;
+	bGPdata *gpd_dst = NULL;
+	bGPDlayer *gpl_dst = NULL;
+	bGPDframe *gpf_dst = NULL;
+	bGPDspoint *pt;
+	Material *ma = NULL;
+	int i, idx;
+
+	eGP_SeparateModes mode = RNA_enum_get(op->ptr, "mode");
+
+	/* sanity checks */
+	if (ELEM(NULL, gpd_src)) {
+		return OPERATOR_CANCELLED;
+	}
+	bool is_multiedit = (bool)GPENCIL_MULTIEDIT_SESSIONS_ON(gpd_src);
+
+	/* create a new object */
+	base_new = ED_object_add_duplicate(bmain, scene, view_layer, base_old, 0);
+	ob_dst = base_new->object;
+
+	/* create new grease pencil datablock */
+	// XXX: check usercounts
+	gpd_dst = BKE_gpencil_data_addnew(bmain, "GPencil");
+	ob_dst->data = (bGPdata *)gpd_dst;
+
+	int totslots = ob_dst->totcol;
+	int totadd = 0;
+
+	/* loop old datablock and separate parts */
+	if ((mode == GP_SEPARATE_POINT) || (mode == GP_SEPARATE_STROKE)) {
+		CTX_DATA_BEGIN(C, bGPDlayer *, gpl, editable_gpencil_layers)
+		{
+			gpl_dst = NULL;
+			bGPDframe *init_gpf = gpl->actframe;
+			if (is_multiedit) {
+				init_gpf = gpl->frames.first;
+			}
+
+			for (bGPDframe *gpf = init_gpf; gpf; gpf = gpf->next) {
+				if ((gpf == gpl->actframe) || ((gpf->flag & GP_FRAME_SELECT) && (is_multiedit))) {
+					bGPDstroke *gps, *gpsn;
+
+					if (gpf == NULL) {
+						continue;
+					}
+
+					gpf_dst = NULL;
+
+					for (gps = gpf->strokes.first; gps; gps = gpsn) {
+						gpsn = gps->next;
+
+						/* skip strokes that are invalid for current view */
+						if (ED_gpencil_stroke_can_use(C, gps) == false) {
+							continue;
+						}
+						/* check if the color is editable */
+						if (ED_gpencil_stroke_color_use(ob, gpl, gps) == false) {
+							continue;
+						}
+						/*  separate selected strokes */
+						if (gps->flag & GP_STROKE_SELECT) {
+							/* add layer if not created before */
+							if (gpl_dst == NULL) {
+								gpl_dst = BKE_gpencil_layer_addnew(gpd_dst, gpl->info, false);
+							}
+
+							/* add frame if not created before */
+							if (gpf_dst == NULL) {
+								gpf_dst = BKE_gpencil_layer_getframe(gpl_dst, gpf->framenum, GP_GETFRAME_ADD_NEW);
+							}
+
+							/* add duplicate materials */
+							ma = give_current_material(ob, gps->mat_nr + 1);
+							idx = BKE_gpencil_get_material_index(ob_dst, ma);
+							if (idx == 0) {
+
+								totadd++;
+								ob_dst->actcol = totadd;
+								ob_dst->totcol = totadd;
+
+								if (totadd > totslots) {
+									BKE_object_material_slot_add(bmain, ob_dst);
+								}
+
+								assign_material(bmain, ob_dst, ma, ob_dst->totcol, BKE_MAT_ASSIGN_USERPREF);
+								idx = totadd;
+							}
+
+							/* selected points mode */
+							if (mode == GP_SEPARATE_POINT) {
+								/* make copy of source stroke */
+								bGPDstroke *gps_dst = BKE_gpencil_stroke_duplicate(gps);
+
+								/* reasign material */
+								gps_dst->mat_nr = idx - 1;
+
+								/* link to destination frame */
+								BLI_addtail(&gpf_dst->strokes, gps_dst);
+
+								/* Invert selection status of all points in destination stroke */
+								for (i = 0, pt = gps_dst->points; i < gps_dst->totpoints; i++, pt++) {
+									pt->flag ^= GP_SPOINT_SELECT;
+								}
+
+								/* delete selected points from destination stroke */
+								gp_stroke_delete_tagged_points(gpf_dst, gps_dst, NULL, GP_SPOINT_SELECT, false);
+
+								/* delete selected points from origin stroke */
+								gp_stroke_delete_tagged_points(gpf, gps, gpsn, GP_SPOINT_SELECT, false);
+							}
+							/* selected strokes mode */
+							else if (mode == GP_SEPARATE_STROKE) {
+								/* deselect old stroke */
+								gps->flag &= ~GP_STROKE_SELECT;
+								/* unlink from source frame */
+								BLI_remlink(&gpf->strokes, gps);
+								gps->prev = gps->next = NULL;
+								/* relink to destination frame */
+								BLI_addtail(&gpf_dst->strokes, gps);
+								/* reasign material */
+								gps->mat_nr = idx - 1;
+							}
+						}
+					}
+				}
+
+				/* if not multiedit, exit loop*/
+				if (!is_multiedit) {
+					break;
+				}
+			}
+		}
+		CTX_DATA_END;
+	}
+	else if (mode == GP_SEPARATE_LAYER) {
+		bGPDlayer *gpl = CTX_data_active_gpencil_layer(C);
+		if (gpl) {
+			/* try to set a new active layer in source datablock */
+			if (gpl->prev) {
+				BKE_gpencil_layer_setactive(gpd_src, gpl->prev);
+			}
+			else if (gpl->next) {
+				BKE_gpencil_layer_setactive(gpd_src, gpl->next);
+			}
+			/* unlink from source datablock */
+			BLI_remlink(&gpd_src->layers, gpl);
+			gpl->prev = gpl->next = NULL;
+			/* relink to destination datablock */
+			BLI_addtail(&gpd_dst->layers, gpl);
+		}
+	}
+	DEG_id_tag_update(&gpd_src->id, OB_RECALC_OB | OB_RECALC_DATA);
+	DEG_id_tag_update(&gpd_dst->id, OB_RECALC_OB | OB_RECALC_DATA);
+
+	DEG_relations_tag_update(bmain);
+	WM_event_add_notifier(C, NC_OBJECT | ND_DRAW, NULL);
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+
+	return OPERATOR_FINISHED;
+}
+
+void GPENCIL_OT_stroke_separate(wmOperatorType *ot)
+{
+	static const EnumPropertyItem separate_type[] = {
+	{GP_SEPARATE_POINT, "POINT", 0, "Selected Points", "Separate the selected points" },
+	{GP_SEPARATE_STROKE, "STROKE", 0, "Selected Strokes", "Separate the selected strokes"},
+	{GP_SEPARATE_LAYER, "LAYER", 0, "Active Layer", "Separate the strokes of the current layer" },
+	{ 0, NULL, 0, NULL, NULL }
+	};
+
+	/* identifiers */
+	ot->name = "Separate Strokes";
+	ot->idname = "GPENCIL_OT_stroke_separate";
+	ot->description = "Separate the selected strokes or layer in a new grease pencil object";
+
+	/* callbacks */
+	ot->invoke = WM_menu_invoke;
+	ot->exec = gp_stroke_separate_exec;
+	ot->poll = gp_strokes_edit3d_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* properties */
+	ot->prop = RNA_def_enum(ot->srna, "mode", separate_type, GP_SEPARATE_POINT, "Mode", "");
+}
+
+/* ***************** Split Strokes ********************** */
+static int gp_stroke_split_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	Object *ob = CTX_data_active_object(C);
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	bGPDspoint *pt;
+	int i;
+
+	/* sanity checks */
+	if (ELEM(NULL, gpd)) {
+		return OPERATOR_CANCELLED;
+	}
+	bool is_multiedit = (bool)GPENCIL_MULTIEDIT_SESSIONS_ON(gpd);
+
+	/* loop strokes and split parts */
+	CTX_DATA_BEGIN(C, bGPDlayer *, gpl, editable_gpencil_layers)
+	{
+		bGPDframe *init_gpf = gpl->actframe;
+		if (is_multiedit) {
+			init_gpf = gpl->frames.first;
+		}
+
+		for (bGPDframe *gpf = init_gpf; gpf; gpf = gpf->next) {
+			if ((gpf == gpl->actframe) || ((gpf->flag & GP_FRAME_SELECT) && (is_multiedit))) {
+				bGPDstroke *gps, *gpsn;
+
+				if (gpf == NULL) {
+					continue;
+				}
+
+				for (gps = gpf->strokes.first; gps; gps = gpsn) {
+					gpsn = gps->next;
+
+					/* skip strokes that are invalid for current view */
+					if (ED_gpencil_stroke_can_use(C, gps) == false) {
+						continue;
+					}
+					/* check if the color is editable */
+					if (ED_gpencil_stroke_color_use(ob, gpl, gps) == false) {
+						continue;
+					}
+					/*  split selected strokes */
+					if (gps->flag & GP_STROKE_SELECT) {
+						/* make copy of source stroke */
+						bGPDstroke *gps_dst = BKE_gpencil_stroke_duplicate(gps);
+
+						/* link to same frame */
+						BLI_addtail(&gpf->strokes, gps_dst);
+
+						/* invert selection status of all points in destination stroke */
+						for (i = 0, pt = gps_dst->points; i < gps_dst->totpoints; i++, pt++) {
+							pt->flag ^= GP_SPOINT_SELECT;
+						}
+
+						/* delete selected points from destination stroke */
+						gp_stroke_delete_tagged_points(gpf, gps_dst, NULL, GP_SPOINT_SELECT, true);
+
+						/* delete selected points from origin stroke */
+						gp_stroke_delete_tagged_points(gpf, gps, gpsn, GP_SPOINT_SELECT, false);
+					}
+				}
+				/* select again tagged points */
+				for (gps = gpf->strokes.first; gps; gps = gps->next) {
+					bGPDspoint *ptn = gps->points;
+					for (int i2 = 0; i2 < gps->totpoints; i2++, ptn++) {
+						if (ptn->flag & GP_SPOINT_TAG) {
+							ptn->flag |= GP_SPOINT_SELECT;
+							ptn->flag &= ~GP_SPOINT_TAG;
+						}
+					}
+				}
+			}
+
+			/* if not multiedit, exit loop*/
+			if (!is_multiedit) {
+				break;
+			}
+		}
+	}
+	CTX_DATA_END;
+
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+
+	return OPERATOR_FINISHED;
+}
+
+void GPENCIL_OT_stroke_split(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Split Strokes";
+	ot->idname = "GPENCIL_OT_stroke_split";
+	ot->description = "Split selected points as new stroke on same frame";
+
+	/* callbacks */
+	ot->exec = gp_stroke_split_exec;
+	ot->poll = gp_strokes_edit3d_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
diff --git a/source/blender/editors/gpencil/gpencil_fill.c b/source/blender/editors/gpencil/gpencil_fill.c
new file mode 100644
index 00000000000..c6df07ae83e
--- /dev/null
+++ b/source/blender/editors/gpencil/gpencil_fill.c
@@ -0,0 +1,1258 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2017, Blender Foundation, Joshua Leung
+ * This is a new part of Blender
+ *
+ * Contributor(s): Antonio Vazquez, Joshua Leung
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/editors/gpencil/gpencil_fill.c
+ *  \ingroup edgpencil
+ */
+
+#include <stdio.h>
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_utildefines.h"
+#include "BLI_blenlib.h"
+#include "BLI_math.h"
+#include "BLI_stack.h"
+
+#include "BLT_translation.h"
+
+#include "DNA_brush_types.h"
+#include "DNA_gpencil_types.h"
+#include "DNA_image_types.h"
+#include "DNA_meshdata_types.h"
+#include "DNA_object_types.h"
+#include "DNA_windowmanager_types.h"
+
+#include "BKE_main.h"
+#include "BKE_brush.h"
+#include "BKE_image.h"
+#include "BKE_gpencil.h"
+#include "BKE_material.h"
+#include "BKE_context.h"
+#include "BKE_screen.h"
+#include "BKE_paint.h"
+
+#include "ED_gpencil.h"
+#include "ED_screen.h"
+#include "ED_space_api.h"
+#include "ED_view3d.h"
+
+#include "RNA_access.h"
+#include "RNA_define.h"
+
+#include "IMB_imbuf.h"
+#include "IMB_imbuf_types.h"
+
+#include "GPU_immediate.h"
+#include "GPU_draw.h"
+#include "GPU_matrix.h"
+#include "GPU_framebuffer.h"
+
+#include "UI_interface.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "DEG_depsgraph.h"
+#include "DEG_depsgraph_query.h"
+
+#include "gpencil_intern.h"
+
+#define LEAK_HORZ 0
+#define LEAK_VERT 1
+
+
+/* Temporary fill operation data (op->customdata) */
+typedef struct tGPDfill {
+	struct Main *bmain;
+	struct Depsgraph *depsgraph;
+	struct wmWindow *win;               /* window where painting originated */
+	struct Scene *scene;                /* current scene from context */
+	struct Object *ob;                  /* current active gp object */
+	struct ScrArea *sa;                 /* area where painting originated */
+	struct RegionView3D *rv3d;          /* region where painting originated */
+	struct View3D *v3d;                 /* view3 where painting originated */
+	struct ARegion *ar;                 /* region where painting originated */
+	struct bGPdata *gpd;                /* current GP datablock */
+	struct Material *mat;               /* current material */
+	struct bGPDlayer *gpl;              /* layer */
+	struct bGPDframe *gpf;              /* frame */
+
+	short flag;                         /* flags */
+	short oldkey;                       /* avoid too fast events */
+	bool on_back;                       /* send to back stroke */
+
+	int center[2];                      /* mouse fill center position */
+	int sizex;                          /* windows width */
+	int sizey;                          /* window height */
+	int lock_axis;                      /* lock to viewport axis */
+
+	short fill_leak;                    /* number of pixel to consider the leak is too small (x 2) */
+	float fill_threshold;               /* factor for transparency */
+	int fill_simplylvl;                 /* number of simplify steps */
+	int fill_draw_mode;                 /* boundary limits drawing mode */
+
+	short sbuffer_size;                 /* number of elements currently in cache */
+	void *sbuffer;                      /* temporary points */
+	float *depth_arr;                   /* depth array for reproject */
+
+	Image *ima;                         /* temp image */
+	BLI_Stack *stack;                   /* temp points data */
+	void *draw_handle_3d;               /* handle for drawing strokes while operator is running 3d stuff */
+} tGPDfill;
+
+
+ /* draw a given stroke using same thickness and color for all points */
+static void gp_draw_basic_stroke(
+        tGPDfill *tgpf, bGPDstroke *gps, const float diff_mat[4][4],
+        bool cyclic, float ink[4], int flag, float thershold)
+{
+	bGPDspoint *points = gps->points;
+
+	Material *ma = tgpf->mat;
+	MaterialGPencilStyle *gp_style = ma->gp_style;
+
+	int totpoints = gps->totpoints;
+	float fpt[3];
+	float col[4];
+
+	copy_v4_v4(col, ink);
+
+	/* if cyclic needs more vertex */
+	int cyclic_add = (cyclic) ? 1 : 0;
+
+	GPUVertFormat *format = immVertexFormat();
+	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
+	uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_F32, 4, GPU_FETCH_FLOAT);
+
+	immBindBuiltinProgram(GPU_SHADER_3D_FLAT_COLOR);
+
+	/* draw stroke curve */
+	glLineWidth(1.0f);
+	immBeginAtMost(GPU_PRIM_LINE_STRIP, totpoints + cyclic_add);
+	const bGPDspoint *pt = points;
+
+	for (int i = 0; i < totpoints; i++, pt++) {
+
+		if (flag & GP_BRUSH_FILL_HIDE) {
+			float alpha = gp_style->stroke_rgba[3] * pt->strength;
+			CLAMP(alpha, 0.0f, 1.0f);
+			col[3] = alpha <= thershold ? 0.0f : 1.0f;
+		}
+		else {
+			col[3] = 1.0f;
+		}
+		/* set point */
+		immAttrib4fv(color, col);
+		mul_v3_m4v3(fpt, diff_mat, &pt->x);
+		immVertex3fv(pos, fpt);
+	}
+
+	if (cyclic && totpoints > 2) {
+		/* draw line to first point to complete the cycle */
+		immAttrib4fv(color, col);
+		mul_v3_m4v3(fpt, diff_mat, &points->x);
+		immVertex3fv(pos, fpt);
+	}
+
+	immEnd();
+	immUnbindProgram();
+}
+
+/* loop all layers */
+static void gp_draw_datablock(tGPDfill *tgpf, float ink[4])
+{
+	/* duplicated: etempFlags */
+	enum {
+		GP_DRAWFILLS_NOSTATUS = (1 << 0),   /* don't draw status info */
+		GP_DRAWFILLS_ONLY3D = (1 << 1),   /* only draw 3d-strokes */
+	};
+
+	Object *ob = tgpf->ob;
+	bGPdata *gpd = tgpf->gpd;
+	int cfra_eval = (int)DEG_get_ctime(tgpf->depsgraph);
+
+	tGPDdraw tgpw;
+	tgpw.rv3d = tgpf->rv3d;
+	tgpw.depsgraph = tgpf->depsgraph;
+	tgpw.ob = ob;
+	tgpw.gpd = gpd;
+	tgpw.offsx = 0;
+	tgpw.offsy = 0;
+	tgpw.winx = tgpf->ar->winx;
+	tgpw.winy = tgpf->ar->winy;
+	tgpw.dflag = 0;
+	tgpw.disable_fill = 1;
+	tgpw.dflag |= (GP_DRAWFILLS_ONLY3D | GP_DRAWFILLS_NOSTATUS);
+
+	glEnable(GL_BLEND);
+
+	for (bGPDlayer *gpl = gpd->layers.first; gpl; gpl = gpl->next) {
+		/* calculate parent position */
+		ED_gpencil_parent_location(tgpw.depsgraph, ob, gpd, gpl, tgpw.diff_mat);
+
+		/* do not draw layer if hidden */
+		if (gpl->flag & GP_LAYER_HIDE)
+			continue;
+
+		/* get frame to draw */
+		bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, cfra_eval, 0);
+		if (gpf == NULL)
+			continue;
+
+		for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
+			/* check if stroke can be drawn */
+			if ((gps->points == NULL) || (gps->totpoints < 2)) {
+				continue;
+			}
+			/* check if the color is visible */
+			MaterialGPencilStyle *gp_style = BKE_material_gpencil_settings_get(ob, gps->mat_nr + 1);
+			if ((gp_style == NULL) || (gp_style->flag & GP_STYLE_COLOR_HIDE)) {
+				continue;
+			}
+
+			tgpw.gps = gps;
+			tgpw.gpl = gpl;
+			tgpw.gpf = gpf;
+			tgpw.t_gpf = gpf;
+
+			/* reduce thickness to avoid gaps */
+			tgpw.lthick = gpl->line_change - 4;
+			tgpw.opacity = 1.0;
+			copy_v4_v4(tgpw.tintcolor, ink);
+			tgpw.onion = true;
+			tgpw.custonion = true;
+
+			/* normal strokes */
+			if ((tgpf->fill_draw_mode == GP_FILL_DMODE_STROKE) ||
+			    (tgpf->fill_draw_mode == GP_FILL_DMODE_BOTH))
+			{
+				ED_gp_draw_fill(&tgpw);
+
+			}
+
+			/* 3D Lines with basic shapes and invisible lines */
+			if ((tgpf->fill_draw_mode == GP_FILL_DMODE_CONTROL) ||
+			    (tgpf->fill_draw_mode == GP_FILL_DMODE_BOTH))
+			{
+				gp_draw_basic_stroke(tgpf, gps, tgpw.diff_mat, gps->flag & GP_STROKE_CYCLIC, ink,
+					tgpf->flag, tgpf->fill_threshold);
+			}
+		}
+	}
+
+	glDisable(GL_BLEND);
+}
+
+ /* draw strokes in offscreen buffer */
+static void gp_render_offscreen(tGPDfill *tgpf)
+{
+	bool is_ortho = false;
+	float winmat[4][4];
+
+	if (!tgpf->gpd) {
+		return;
+	}
+
+	char err_out[256] = "unknown";
+	GPUOffScreen *offscreen = GPU_offscreen_create(tgpf->sizex, tgpf->sizey, 0, true, false, err_out);
+	GPU_offscreen_bind(offscreen, true);
+	uint flag = IB_rect | IB_rectfloat;
+	ImBuf *ibuf = IMB_allocImBuf(tgpf->sizex, tgpf->sizey, 32, flag);
+
+	rctf viewplane;
+	float clipsta, clipend;
+
+	is_ortho = ED_view3d_viewplane_get(tgpf->depsgraph, tgpf->v3d, tgpf->rv3d, tgpf->sizex, tgpf->sizey, &viewplane, &clipsta, &clipend, NULL);
+	if (is_ortho) {
+		orthographic_m4(winmat, viewplane.xmin, viewplane.xmax, viewplane.ymin, viewplane.ymax, -clipend, clipend);
+	}
+	else {
+		perspective_m4(winmat, viewplane.xmin, viewplane.xmax, viewplane.ymin, viewplane.ymax, clipsta, clipend);
+	}
+
+	/* set temporary new size */
+	int bwinx = tgpf->ar->winx;
+	int bwiny = tgpf->ar->winy;
+	rcti brect = tgpf->ar->winrct;
+
+	tgpf->ar->winx = (short) tgpf->sizex;
+	tgpf->ar->winy = (short) tgpf->sizey;
+	tgpf->ar->winrct.xmin = 0;
+	tgpf->ar->winrct.ymin = 0;
+	tgpf->ar->winrct.xmax = tgpf->sizex;
+	tgpf->ar->winrct.ymax = tgpf->sizey;
+
+	GPU_matrix_push_projection();
+	GPU_matrix_identity_set();
+	GPU_matrix_push();
+	GPU_matrix_identity_set();
+
+	glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+
+	ED_view3d_update_viewmat(
+	        tgpf->depsgraph, tgpf->scene, tgpf->v3d, tgpf->ar,
+	        NULL, winmat, NULL);
+	/* set for opengl */
+	GPU_matrix_projection_set(tgpf->rv3d->winmat);
+	GPU_matrix_set(tgpf->rv3d->viewmat);
+
+	/* draw strokes */
+	float ink[4] = { 1.0f, 0.0f, 0.0f, 1.0f };
+	gp_draw_datablock(tgpf, ink);
+
+	/* restore size */
+	tgpf->ar->winx = (short)bwinx;
+	tgpf->ar->winy = (short)bwiny;
+	tgpf->ar->winrct = brect;
+
+	GPU_matrix_pop_projection();
+	GPU_matrix_pop();
+
+	/* create a image to see result of template */
+	if (ibuf->rect_float) {
+		GPU_offscreen_read_pixels(offscreen, GL_FLOAT, ibuf->rect_float);
+	}
+	else if (ibuf->rect) {
+		GPU_offscreen_read_pixels(offscreen, GL_UNSIGNED_BYTE, ibuf->rect);
+	}
+	if (ibuf->rect_float && ibuf->rect) {
+		IMB_rect_from_float(ibuf);
+	}
+
+	tgpf->ima = BKE_image_add_from_imbuf(tgpf->bmain, ibuf, "GP_fill");
+	tgpf->ima->id.tag |= LIB_TAG_DOIT;
+
+	BKE_image_release_ibuf(tgpf->ima, ibuf, NULL);
+
+	/* switch back to window-system-provided framebuffer */
+	GPU_offscreen_unbind(offscreen, true);
+	GPU_offscreen_free(offscreen);
+}
+
+/* return pixel data (rgba) at index */
+static void get_pixel(ImBuf *ibuf, int idx, float r_col[4])
+{
+	if (ibuf->rect_float) {
+		float *frgba = &ibuf->rect_float[idx * 4];
+		copy_v4_v4(r_col, frgba);
+	}
+	else {
+		/* XXX: This case probably doesn't happen, as we only write to the float buffer,
+		 * but we get compiler warnings about uninitialised vars otherwise
+		 */
+		BLI_assert(!"gpencil_fill.c - get_pixel() non-float case is used!");
+		zero_v4(r_col);
+	}
+}
+
+/* set pixel data (rgba) at index */
+static void set_pixel(ImBuf *ibuf, int idx, const float col[4])
+{
+	//BLI_assert(idx <= ibuf->x * ibuf->y);
+	if (ibuf->rect) {
+		uint *rrect = &ibuf->rect[idx];
+		uchar ccol[4];
+
+		rgba_float_to_uchar(ccol, col);
+		*rrect = *((uint *)ccol);
+	}
+
+	if (ibuf->rect_float) {
+		float *rrectf = &ibuf->rect_float[idx * 4];
+		copy_v4_v4(rrectf, col);
+	}
+}
+
+/* check if the size of the leak is narrow to determine if the stroke is closed
+ * this is used for strokes with small gaps between them to get a full fill
+ * and do not get a full screen fill.
+ *
+ * \param ibuf      Image pixel data
+ * \param maxpixel  Maximum index
+ * \param limit     Limit of pixels to analize
+ * \param index     Index of current pixel
+ * \param type      0-Horizontal 1-Vertical
+ */
+static bool is_leak_narrow(ImBuf *ibuf, const int maxpixel, int limit, int index, int type)
+{
+	float rgba[4];
+	int i;
+	int pt;
+	bool t_a = false;
+	bool t_b = false;
+
+	/* Horizontal leak (check vertical pixels)
+	 *     X
+	 *	   X
+	 *	   xB7
+	 *	   X
+	 *	   X
+	 */
+	if (type == LEAK_HORZ) {
+		/* pixels on top */
+		for (i = 1; i <= limit; i++) {
+			pt = index + (ibuf->x * i);
+			if (pt <= maxpixel) {
+				get_pixel(ibuf, pt, rgba);
+				if (rgba[0] == 1.0f) {
+					t_a =  true;
+					break;
+				}
+			}
+			else {
+				t_a = true; /* edge of image*/
+				break;
+			}
+		}
+		/* pixels on bottom */
+		for (i = 1; i <= limit; i++) {
+			pt = index - (ibuf->x * i);
+			if (pt >= 0) {
+				get_pixel(ibuf, pt, rgba);
+				if (rgba[0] == 1.0f) {
+					t_b = true;
+					break;
+				}
+			}
+			else {
+				t_b = true; /* edge of image*/
+				break;
+			}
+		}
+	}
+
+	/* Vertical leak (check horizontal pixels)
+	 *
+	 *  XXXxB7XX
+	 *
+	 */
+	if (type == LEAK_VERT) {
+		/* get pixel range of the row */
+		int row = index / ibuf->x;
+		int lowpix = row * ibuf->x;
+		int higpix = lowpix + ibuf->x - 1;
+
+		/* pixels to right */
+		for (i = 0; i < limit; i++) {
+			pt = index - (limit - i);
+			if (pt >= lowpix) {
+				get_pixel(ibuf, pt, rgba);
+				if (rgba[0] == 1.0f) {
+					t_a = true;
+					break;
+				}
+			}
+			else {
+				t_a = true; /* edge of image*/
+				break;
+			}
+		}
+		/* pixels to left */
+		for (i = 0; i < limit; i++) {
+			pt = index + (limit - i);
+			if (pt <= higpix) {
+				get_pixel(ibuf, pt, rgba);
+				if (rgba[0] == 1.0f) {
+					t_b = true;
+					break;
+				}
+			}
+			else {
+				t_b = true; /* edge of image */
+				break;
+			}
+		}
+	}
+	return (bool)(t_a && t_b);
+}
+
+/* Boundary fill inside strokes
+ * Fills the space created by a set of strokes using the stroke color as the boundary
+ * of the shape to fill.
+ *
+ * \param tgpf       Temporary fill data
+ */
+static void gpencil_boundaryfill_area(tGPDfill *tgpf)
+{
+	ImBuf *ibuf;
+	float rgba[4];
+	void *lock;
+	const float fill_col[4] = { 0.0f, 1.0f, 0.0f, 1.0f };
+	ibuf = BKE_image_acquire_ibuf(tgpf->ima, NULL, &lock);
+	const int maxpixel = (ibuf->x * ibuf->y) - 1;
+
+	BLI_Stack *stack = BLI_stack_new(sizeof(int), __func__);
+
+	/* calculate index of the seed point using the position of the mouse */
+	int index = (tgpf->sizex * tgpf->center[1]) + tgpf->center[0];
+	if ((index >= 0) && (index < maxpixel)) {
+		BLI_stack_push(stack, &index);
+	}
+
+	/* the fill use a stack to save the pixel list instead of the common recursive
+	* 4-contact point method.
+	* The problem with recursive calls is that for big fill areas, we can get max limit
+	* of recursive calls and STACK_OVERFLOW error.
+	*
+	* The 4-contact point analyze the pixels to the left, right, bottom and top
+	*      -----------
+	*      |    X    |
+	*      |   XoX   |
+	*      |    X    |
+	*      -----------
+	*/
+	while (!BLI_stack_is_empty(stack)) {
+		int v;
+		BLI_stack_pop(stack, &v);
+
+		get_pixel(ibuf, v, rgba);
+
+		if (true) { /* Was: 'rgba' */
+			/* check if no border(red) or already filled color(green) */
+			if ((rgba[0] != 1.0f) && (rgba[1] != 1.0f)) {
+				/* fill current pixel */
+				set_pixel(ibuf, v, fill_col);
+
+				/* add contact pixels */
+				/* pixel left */
+				if (v - 1 >= 0) {
+					index = v - 1;
+					if (!is_leak_narrow(ibuf, maxpixel, tgpf->fill_leak, v, LEAK_HORZ)) {
+						BLI_stack_push(stack, &index);
+					}
+				}
+				/* pixel right */
+				if (v + 1 < maxpixel) {
+					index = v + 1;
+					if (!is_leak_narrow(ibuf, maxpixel, tgpf->fill_leak, v, LEAK_HORZ)) {
+						BLI_stack_push(stack, &index);
+					}
+				}
+				/* pixel top */
+				if (v + tgpf->sizex < maxpixel) {
+					index = v + tgpf->sizex;
+					if (!is_leak_narrow(ibuf, maxpixel, tgpf->fill_leak, v, LEAK_VERT)) {
+						BLI_stack_push(stack, &index);
+					}
+				}
+				/* pixel bottom */
+				if (v - tgpf->sizex >= 0) {
+					index = v - tgpf->sizex;
+					if (!is_leak_narrow(ibuf, maxpixel, tgpf->fill_leak, v, LEAK_VERT)) {
+						BLI_stack_push(stack, &index);
+					}
+				}
+			}
+		}
+	}
+
+	/* release ibuf */
+	if (ibuf) {
+		BKE_image_release_ibuf(tgpf->ima, ibuf, lock);
+	}
+
+	tgpf->ima->id.tag |= LIB_TAG_DOIT;
+	/* free temp stack data */
+	BLI_stack_free(stack);
+}
+
+/* clean external border of image to avoid infinite loops */
+static void gpencil_clean_borders(tGPDfill *tgpf)
+{
+	ImBuf *ibuf;
+	void *lock;
+	const float fill_col[4] = { 0.0f, 0.0f, 0.0f, 0.0f };
+	ibuf = BKE_image_acquire_ibuf(tgpf->ima, NULL, &lock);
+	int idx;
+	int pixel = 0;
+
+	/* horizontal lines */
+	for (idx = 0; idx < ibuf->x - 1; idx++) {
+		/* bottom line */
+		set_pixel(ibuf, idx, fill_col);
+		/* top line */
+		pixel = idx + (ibuf->x * (ibuf->y - 1));
+		set_pixel(ibuf, pixel, fill_col);
+	}
+	/* vertical lines */
+	for (idx = 0; idx < ibuf->y; idx++) {
+		/* left line */
+		set_pixel(ibuf, ibuf->x * idx, fill_col);
+		/* right line */
+		pixel = ibuf->x * idx + (ibuf->x - 1);
+		set_pixel(ibuf, pixel, fill_col);
+	}
+
+	/* release ibuf */
+	if (ibuf) {
+		BKE_image_release_ibuf(tgpf->ima, ibuf, lock);
+	}
+
+	tgpf->ima->id.tag |= LIB_TAG_DOIT;
+}
+
+/* Get the outline points of a shape using Moore Neighborhood algorithm
+ *
+ * This is a Blender customized version of the general algorithm described
+ * in https://en.wikipedia.org/wiki/Moore_neighborhood
+ */
+static  void gpencil_get_outline_points(tGPDfill *tgpf)
+{
+	ImBuf *ibuf;
+	float rgba[4];
+	void *lock;
+	int v[2];
+	int boundary_co[2];
+	int start_co[2];
+	int backtracked_co[2];
+	int current_check_co[2];
+	int prev_check_co[2];
+	int backtracked_offset[1][2] = {{0, 0}};
+	// bool boundary_found = false;
+	bool start_found = false;
+	const int NEIGHBOR_COUNT = 8;
+
+	int offset[8][2] = {
+		{ -1, -1 },
+		{ 0, -1 },
+		{ 1, -1 },
+		{ 1, 0 },
+		{ 1, 1 },
+		{ 0, 1 },
+		{ -1, 1 },
+		{ -1, 0 }
+	};
+
+	tgpf->stack = BLI_stack_new(sizeof(int[2]), __func__);
+
+	ibuf = BKE_image_acquire_ibuf(tgpf->ima, NULL, &lock);
+	int imagesize = ibuf->x * ibuf->y;
+
+	/* find the initial point to start outline analysis */
+	for (int idx = imagesize; idx >= 0; idx--) {
+		get_pixel(ibuf, idx, rgba);
+		if (rgba[1] == 1.0f) {
+			boundary_co[0] = idx % ibuf->x;
+			boundary_co[1] = idx / ibuf->x;
+			copy_v2_v2_int(start_co, boundary_co);
+			backtracked_co[0] = (idx - 1) % ibuf->x;
+			backtracked_co[1] = (idx - 1) / ibuf->x;
+			backtracked_offset[0][0] = backtracked_co[0] - boundary_co[0];
+			backtracked_offset[0][1] = backtracked_co[1] - boundary_co[1];
+			copy_v2_v2_int(prev_check_co, start_co);
+
+			BLI_stack_push(tgpf->stack, &boundary_co);
+			start_found = true;
+			break;
+		}
+	}
+
+	while (start_found) {
+		int cur_back_offset = -1;
+		for (int i = 0; i < NEIGHBOR_COUNT; i++) {
+			if (backtracked_offset[0][0] == offset[i][0] &&
+			    backtracked_offset[0][1] == offset[i][1])
+			{
+				/* Finding the bracktracked pixel offset index */
+				cur_back_offset = i;
+				break;
+			}
+		}
+
+		int loop = 0;
+		while (loop < (NEIGHBOR_COUNT - 1) && cur_back_offset != -1) {
+			int offset_idx = (cur_back_offset + 1) % NEIGHBOR_COUNT;
+			current_check_co[0] = boundary_co[0] + offset[offset_idx][0];
+			current_check_co[1] = boundary_co[1] + offset[offset_idx][1];
+
+			int image_idx = ibuf->x * current_check_co[1] + current_check_co[0];
+			get_pixel(ibuf, image_idx, rgba);
+
+			/* find next boundary pixel */
+			if (rgba[1] == 1.0f) {
+				copy_v2_v2_int(boundary_co, current_check_co);
+				copy_v2_v2_int(backtracked_co, prev_check_co);
+				backtracked_offset[0][0] = backtracked_co[0] - boundary_co[0];
+				backtracked_offset[0][1] = backtracked_co[1] - boundary_co[1];
+
+				BLI_stack_push(tgpf->stack, &boundary_co);
+
+				break;
+			}
+			copy_v2_v2_int(prev_check_co, current_check_co);
+			cur_back_offset++;
+			loop++;
+		}
+		/* current pixel is equal to starting pixel */
+		if (boundary_co[0] == start_co[0] &&
+		    boundary_co[1] == start_co[1])
+		{
+			BLI_stack_pop(tgpf->stack, &v);
+			// boundary_found = true;
+			break;
+		}
+	}
+
+	/* release ibuf */
+	if (ibuf) {
+		BKE_image_release_ibuf(tgpf->ima, ibuf, lock);
+	}
+}
+
+/* get z-depth array to reproject on surface */
+static void gpencil_get_depth_array(tGPDfill *tgpf)
+{
+	tGPspoint *ptc;
+	ToolSettings *ts = tgpf->scene->toolsettings;
+	int totpoints = tgpf->sbuffer_size;
+	int i = 0;
+
+	if (totpoints == 0) {
+		return;
+	}
+
+	/* for surface sketching, need to set the right OpenGL context stuff so that
+	* the conversions will project the values correctly...
+	*/
+	if (ts->gpencil_v3d_align & GP_PROJECT_DEPTH_VIEW) {
+		/* need to restore the original projection settings before packing up */
+		view3d_region_operator_needs_opengl(tgpf->win, tgpf->ar);
+		ED_view3d_autodist_init(tgpf->depsgraph, tgpf->ar, tgpf->v3d, 0);
+
+		/* since strokes are so fine, when using their depth we need a margin otherwise they might get missed */
+		int depth_margin = 0;
+
+		/* get an array of depths, far depths are blended */
+		int mval[2], mval_prev[2] = { 0 };
+		int interp_depth = 0;
+		int found_depth = 0;
+
+		tgpf->depth_arr = MEM_mallocN(sizeof(float) * totpoints, "depth_points");
+
+		for (i = 0, ptc = tgpf->sbuffer; i < totpoints; i++, ptc++) {
+			copy_v2_v2_int(mval, &ptc->x);
+
+			if ((ED_view3d_autodist_depth(
+			             tgpf->ar, mval, depth_margin, tgpf->depth_arr + i) == 0) &&
+			    (i && (ED_view3d_autodist_depth_seg(
+			                   tgpf->ar, mval, mval_prev, depth_margin + 1, tgpf->depth_arr + i) == 0)))
+			{
+				interp_depth = true;
+			}
+			else {
+				found_depth = true;
+			}
+
+			copy_v2_v2_int(mval_prev, mval);
+		}
+
+		if (found_depth == false) {
+			/* eeh... not much we can do.. :/, ignore depth in this case */
+			for (i = totpoints - 1; i >= 0; i--)
+				tgpf->depth_arr[i] = 0.9999f;
+		}
+		else {
+			if (interp_depth) {
+				interp_sparse_array(tgpf->depth_arr, totpoints, FLT_MAX);
+			}
+		}
+	}
+}
+
+/* create array of points using stack as source */
+static void gpencil_points_from_stack(tGPDfill *tgpf)
+{
+	tGPspoint *point2D;
+	int totpoints = BLI_stack_count(tgpf->stack);
+	if (totpoints == 0) {
+		return;
+	}
+
+	tgpf->sbuffer_size = (short)totpoints;
+	tgpf->sbuffer = MEM_callocN(sizeof(tGPspoint) * totpoints, __func__);
+
+	point2D = tgpf->sbuffer;
+	while (!BLI_stack_is_empty(tgpf->stack)) {
+		int v[2];
+		BLI_stack_pop(tgpf->stack, &v);
+		point2D->x = v[0];
+		point2D->y = v[1];
+
+		point2D->pressure = 1.0f;
+		point2D->strength = 1.0f;;
+		point2D->time = 0.0f;
+		point2D++;
+	}
+}
+
+/* create a grease pencil stroke using points in buffer */
+static void gpencil_stroke_from_buffer(tGPDfill *tgpf)
+{
+	ToolSettings *ts = tgpf->scene->toolsettings;
+	int cfra_eval = (int)DEG_get_ctime(tgpf->depsgraph);
+
+	Brush *brush;
+	brush = BKE_brush_getactive_gpencil(ts);
+	if (brush == NULL) {
+		return;
+	}
+
+	bGPDspoint *pt;
+	MDeformVert *dvert;
+	tGPspoint *point2D;
+
+	if (tgpf->sbuffer_size == 0) {
+		return;
+	}
+
+	/* get frame or create a new one */
+	tgpf->gpf = BKE_gpencil_layer_getframe(tgpf->gpl, cfra_eval, GP_GETFRAME_ADD_NEW);
+
+	/* create new stroke */
+	bGPDstroke *gps = MEM_callocN(sizeof(bGPDstroke), "bGPDstroke");
+	gps->thickness = brush->size;
+	gps->inittime = 0.0f;
+
+	/* the polygon must be closed, so enabled cyclic */
+	gps->flag |= GP_STROKE_CYCLIC;
+	gps->flag |= GP_STROKE_3DSPACE;
+
+	gps->mat_nr = BKE_gpencil_get_material_index(tgpf->ob, tgpf->mat) - 1;
+
+	/* allocate memory for storage points */
+	gps->totpoints = tgpf->sbuffer_size;
+	gps->points = MEM_callocN(sizeof(bGPDspoint) * tgpf->sbuffer_size, "gp_stroke_points");
+	gps->dvert = MEM_callocN(sizeof(MDeformVert) * tgpf->sbuffer_size, "gp_stroke_weights");
+
+	/* initialize triangle memory to dummy data */
+	gps->tot_triangles = 0;
+	gps->triangles = NULL;
+	gps->flag |= GP_STROKE_RECALC_CACHES;
+
+	/* add stroke to frame */
+	if ((ts->gpencil_flags & GP_TOOL_FLAG_PAINT_ONBACK) || (tgpf->on_back == true)) {
+		BLI_addhead(&tgpf->gpf->strokes, gps);
+	}
+	else {
+		BLI_addtail(&tgpf->gpf->strokes, gps);
+	}
+
+	/* add points */
+	pt = gps->points;
+	dvert = gps->dvert;
+	point2D = (tGPspoint *)tgpf->sbuffer;
+	for (int i = 0; i < tgpf->sbuffer_size && point2D; i++, point2D++, pt++, dvert++) {
+		/* convert screen-coordinates to 3D coordinates */
+		gp_stroke_convertcoords_tpoint(
+		        tgpf->scene, tgpf->ar, tgpf->v3d, tgpf->ob,
+		        tgpf->gpl, point2D,
+		        tgpf->depth_arr ? tgpf->depth_arr + i : NULL,
+		        &pt->x);
+
+		pt->pressure = 1.0f;
+		pt->strength = 1.0f;;
+		pt->time = 0.0f;
+
+		dvert->totweight = 0;
+		dvert->dw = NULL;
+	}
+
+	/* smooth stroke */
+	float reduce = 0.0f;
+	float smoothfac = 1.0f;
+	for (int r = 0; r < 1; r++) {
+		for (int i = 0; i < gps->totpoints; i++) {
+			BKE_gpencil_smooth_stroke(gps, i, smoothfac - reduce);
+		}
+		reduce += 0.25f;  // reduce the factor
+	}
+
+	/* if axis locked, reproject to plane locked */
+	if ((tgpf->lock_axis > GP_LOCKAXIS_NONE) && ((ts->gpencil_v3d_align & GP_PROJECT_DEPTH_VIEW) == 0)) {
+		float origin[3];
+		ED_gp_get_drawing_reference(tgpf->v3d, tgpf->scene, tgpf->ob, tgpf->gpl,
+			ts->gpencil_v3d_align, origin);
+		ED_gp_project_stroke_to_plane(tgpf->ob, tgpf->rv3d, gps, origin,
+			tgpf->lock_axis - 1);
+	}
+
+	/* if parented change position relative to parent object */
+	for (int a = 0; a < tgpf->sbuffer_size; a++) {
+		pt = &gps->points[a];
+		gp_apply_parent_point(tgpf->depsgraph, tgpf->ob, tgpf->gpd, tgpf->gpl, pt);
+	}
+
+	/* simplify stroke */
+	for (int b = 0; b < tgpf->fill_simplylvl; b++) {
+		BKE_gpencil_simplify_fixed(gps);
+	}
+}
+
+/* ----------------------- */
+/* Drawing                 */
+/* Helper: Draw status message while the user is running the operator */
+static void gpencil_fill_status_indicators(bContext *C, tGPDfill *UNUSED(tgpf))
+{
+	const char *status_str = IFACE_("Fill: ESC/RMB cancel, LMB Fill, Shift Draw on Back");
+	ED_workspace_status_text(C, status_str);
+}
+
+/* draw boundary lines to see fill limits */
+static void gpencil_draw_boundary_lines(const bContext *UNUSED(C), tGPDfill *tgpf)
+{
+	if (!tgpf->gpd) {
+		return;
+	}
+	float ink[4] = { 1.0f, 0.0f, 0.0f, 1.0f };
+	gp_draw_datablock(tgpf, ink);
+}
+
+/* Drawing callback for modal operator in 3d mode */
+static void gpencil_fill_draw_3d(const bContext *C, ARegion *UNUSED(ar), void *arg)
+{
+	tGPDfill *tgpf = (tGPDfill *)arg;
+	/* draw only in the region that originated operator. This is required for multiwindow */
+	ARegion *ar = CTX_wm_region(C);
+	if (ar != tgpf->ar) {
+		return;
+	}
+
+	gpencil_draw_boundary_lines(C, tgpf);
+}
+
+/* check if context is suitable for filling */
+static bool gpencil_fill_poll(bContext *C)
+{
+	if (ED_operator_regionactive(C)) {
+		ScrArea *sa = CTX_wm_area(C);
+		if (sa->spacetype == SPACE_VIEW3D) {
+			return 1;
+		}
+		else {
+			CTX_wm_operator_poll_msg_set(C, "Active region not valid for filling operator");
+			return 0;
+		}
+	}
+	else {
+		CTX_wm_operator_poll_msg_set(C, "Active region not set");
+		return 0;
+	}
+}
+
+/* Allocate memory and initialize values */
+static tGPDfill *gp_session_init_fill(bContext *C, wmOperator *UNUSED(op))
+{
+	tGPDfill *tgpf = MEM_callocN(sizeof(tGPDfill), "GPencil Fill Data");
+
+	/* define initial values */
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	bGPdata *gpd = CTX_data_gpencil_data(C);
+	Main *bmain = CTX_data_main(C);
+
+	/* set current scene and window info */
+	tgpf->bmain = CTX_data_main(C);
+	tgpf->scene = CTX_data_scene(C);
+	tgpf->ob = CTX_data_active_object(C);
+	tgpf->sa = CTX_wm_area(C);
+	tgpf->ar = CTX_wm_region(C);
+	tgpf->rv3d = tgpf->ar->regiondata;
+	tgpf->v3d = tgpf->sa->spacedata.first;
+	tgpf->depsgraph = CTX_data_depsgraph(C);
+	tgpf->win = CTX_wm_window(C);
+
+	/* set GP datablock */
+	tgpf->gpd = gpd;
+	tgpf->gpl = BKE_gpencil_layer_getactive(gpd);
+	if (tgpf->gpl == NULL) {
+		tgpf->gpl = BKE_gpencil_layer_addnew(tgpf->gpd, DATA_("GP_Layer"), true);
+	}
+	tgpf->lock_axis = ts->gp_sculpt.lock_axis;
+
+	tgpf->oldkey = -1;
+	tgpf->sbuffer_size = 0;
+	tgpf->sbuffer = NULL;
+	tgpf->depth_arr = NULL;
+
+	/* save filling parameters */
+	Brush *brush = BKE_brush_getactive_gpencil(ts);
+	tgpf->flag = brush->gpencil_settings->flag;
+	tgpf->fill_leak = brush->gpencil_settings->fill_leak;
+	tgpf->fill_threshold = brush->gpencil_settings->fill_threshold;
+	tgpf->fill_simplylvl = brush->gpencil_settings->fill_simplylvl;
+	tgpf->fill_draw_mode = brush->gpencil_settings->fill_draw_mode;
+
+	/* get color info */
+	Material *ma = BKE_gpencil_get_material_from_brush(brush);
+	/* if no brush defaults, get material and color info */
+	if ((ma == NULL) || (ma->gp_style == NULL)) {
+		ma = BKE_gpencil_material_ensure(bmain, tgpf->ob);
+		/* assign always the first material to the brush */
+		brush->gpencil_settings->material = give_current_material(tgpf->ob, 1);
+	}
+
+	tgpf->mat = ma;
+
+	/* init undo */
+	gpencil_undo_init(tgpf->gpd);
+
+	/* return context data for running operator */
+	return tgpf;
+}
+
+/* end operator */
+static void gpencil_fill_exit(bContext *C, wmOperator *op)
+{
+	Main *bmain = CTX_data_main(C);
+	Object *ob = CTX_data_active_object(C);
+
+	/* clear undo stack */
+	gpencil_undo_finish();
+
+	/* restore cursor to indicate end of fill */
+	WM_cursor_modal_restore(CTX_wm_window(C));
+
+	tGPDfill *tgpf = op->customdata;
+
+	/* don't assume that operator data exists at all */
+	if (tgpf) {
+		/* clear status message area */
+		ED_workspace_status_text(C, NULL);
+
+		MEM_SAFE_FREE(tgpf->sbuffer);
+		MEM_SAFE_FREE(tgpf->depth_arr);
+
+		/* remove drawing handler */
+		if (tgpf->draw_handle_3d) {
+			ED_region_draw_cb_exit(tgpf->ar->type, tgpf->draw_handle_3d);
+		}
+
+		/* delete temp image */
+		if (tgpf->ima) {
+			for (Image *ima = bmain->image.first; ima; ima = ima->id.next) {
+				if (ima == tgpf->ima) {
+					BLI_remlink(&bmain->image, ima);
+					BKE_image_free(tgpf->ima);
+					MEM_SAFE_FREE(tgpf->ima);
+					break;
+				}
+			}
+		}
+
+		/* finally, free memory used by temp data */
+		MEM_freeN(tgpf);
+	}
+
+	/* clear pointer */
+	op->customdata = NULL;
+
+	/* drawing batch cache is dirty now */
+	if ((ob) && (ob->type == OB_GPENCIL) && (ob->data)) {
+		bGPdata *gpd2 = ob->data;
+		DEG_id_tag_update(&gpd2->id, OB_RECALC_OB | OB_RECALC_DATA);
+		gpd2->flag |= GP_DATA_CACHE_IS_DIRTY;
+	}
+
+	WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
+}
+
+static void gpencil_fill_cancel(bContext *C, wmOperator *op)
+{
+	/* this is just a wrapper around exit() */
+	gpencil_fill_exit(C, op);
+}
+
+/* Init: Allocate memory and set init values */
+static int gpencil_fill_init(bContext *C, wmOperator *op)
+{
+	tGPDfill *tgpf;
+	/* cannot paint in locked layer */
+	bGPdata *gpd = CTX_data_gpencil_data(C);
+	bGPDlayer *gpl = BKE_gpencil_layer_getactive(gpd);
+	if ((gpl) && (gpl->flag & GP_LAYER_LOCKED)) {
+		return 0;
+	}
+
+	/* check context */
+	tgpf = op->customdata = gp_session_init_fill(C, op);
+	if (tgpf == NULL) {
+		/* something wasn't set correctly in context */
+		gpencil_fill_exit(C, op);
+		return 0;
+	}
+
+	/* everything is now setup ok */
+	return 1;
+}
+
+/* start of interactive part of operator */
+static int gpencil_fill_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event))
+{
+	tGPDfill *tgpf = NULL;
+
+	/* try to initialize context data needed */
+	if (!gpencil_fill_init(C, op)) {
+		gpencil_fill_exit(C, op);
+		if (op->customdata)
+			MEM_freeN(op->customdata);
+		return OPERATOR_CANCELLED;
+	}
+	else {
+		tgpf = op->customdata;
+	}
+
+	/* Enable custom drawing handlers to show help lines */
+	if (tgpf->flag & GP_BRUSH_FILL_SHOW_HELPLINES) {
+		tgpf->draw_handle_3d = ED_region_draw_cb_activate(tgpf->ar->type, gpencil_fill_draw_3d, tgpf, REGION_DRAW_POST_VIEW);
+	}
+
+	WM_cursor_modal_set(CTX_wm_window(C), BC_PAINTBRUSHCURSOR);
+
+	gpencil_fill_status_indicators(C, tgpf);
+
+	DEG_id_tag_update(&tgpf->gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
+
+	/* add a modal handler for this operator*/
+	WM_event_add_modal_handler(C, op);
+
+	return OPERATOR_RUNNING_MODAL;
+}
+
+/* events handling during interactive part of operator */
+static int gpencil_fill_modal(bContext *C, wmOperator *op, const wmEvent *event)
+{
+	tGPDfill *tgpf = op->customdata;
+
+	int estate = OPERATOR_PASS_THROUGH; /* default exit state - pass through */
+
+	switch (event->type) {
+		case ESCKEY:
+		case RIGHTMOUSE:
+			estate = OPERATOR_CANCELLED;
+			break;
+		case LEFTMOUSE:
+			tgpf->on_back = RNA_boolean_get(op->ptr, "on_back");
+			/* first time the event is not enabled to show help lines */
+			if ((tgpf->oldkey != -1) || ((tgpf->flag & GP_BRUSH_FILL_SHOW_HELPLINES) == 0)) {
+				ARegion *ar = BKE_area_find_region_xy(CTX_wm_area(C), RGN_TYPE_ANY, event->x, event->y);
+				if (ar) {
+					bool in_bounds = false;
+
+					/* Perform bounds check */
+					in_bounds = BLI_rcti_isect_pt(&ar->winrct, event->x, event->y);
+
+					if ((in_bounds) && (ar->regiontype == RGN_TYPE_WINDOW)) {
+						/* TODO GPXX: Verify the mouse click is right for any window size */
+						tgpf->center[0] = event->mval[0];
+						tgpf->center[1] = event->mval[1];
+
+						/* save size */
+						tgpf->sizex = ar->winx;
+						tgpf->sizey = ar->winy;
+
+						/* render screen to temp image */
+						gp_render_offscreen(tgpf);
+
+						/* apply boundary fill */
+						gpencil_boundaryfill_area(tgpf);
+
+						/* clean borders to avoid infinite loops */
+						gpencil_clean_borders(tgpf);
+
+						/* analyze outline */
+						gpencil_get_outline_points(tgpf);
+
+						/* create array of points from stack */
+						gpencil_points_from_stack(tgpf);
+
+						/* create z-depth array for reproject */
+						gpencil_get_depth_array(tgpf);
+
+						/* create stroke and reproject */
+						gpencil_stroke_from_buffer(tgpf);
+
+						/* free temp stack data */
+						if (tgpf->stack) {
+							BLI_stack_free(tgpf->stack);
+						}
+
+						/* push undo data */
+						gpencil_undo_push(tgpf->gpd);
+
+						estate = OPERATOR_FINISHED;
+					}
+					else {
+						estate = OPERATOR_CANCELLED;
+					}
+				}
+				else {
+					estate = OPERATOR_CANCELLED;
+				}
+			}
+			tgpf->oldkey = event->type;
+			break;
+	}
+	/* process last operations before exiting */
+	switch (estate) {
+		case OPERATOR_FINISHED:
+			gpencil_fill_exit(C, op);
+			WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
+			break;
+
+		case OPERATOR_CANCELLED:
+			gpencil_fill_exit(C, op);
+			break;
+
+		case OPERATOR_RUNNING_MODAL | OPERATOR_PASS_THROUGH:
+			break;
+	}
+
+	/* return status code */
+	return estate;
+}
+
+void GPENCIL_OT_fill(wmOperatorType *ot)
+{
+	PropertyRNA *prop;
+
+	/* identifiers */
+	ot->name = "Grease Pencil Fill";
+	ot->idname = "GPENCIL_OT_fill";
+	ot->description = "Fill with color the shape formed by strokes";
+
+	/* api callbacks */
+	ot->invoke = gpencil_fill_invoke;
+	ot->modal = gpencil_fill_modal;
+	ot->poll = gpencil_fill_poll;
+	ot->cancel = gpencil_fill_cancel;
+
+	/* flags */
+	ot->flag = OPTYPE_UNDO | OPTYPE_BLOCKING;
+
+	prop = RNA_def_boolean(ot->srna, "on_back", false, "Draw On Back", "Send new stroke to Back");
+	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
+}
diff --git a/source/blender/editors/gpencil/gpencil_intern.h b/source/blender/editors/gpencil/gpencil_intern.h
index 90ff1e0bb25..52e7d1e1f30 100644
--- a/source/blender/editors/gpencil/gpencil_intern.h
+++ b/source/blender/editors/gpencil/gpencil_intern.h
@@ -34,25 +34,145 @@
 
 #include "DNA_vec_types.h"
 
+#include "ED_numinput.h"
+
 
 /* internal exports only */
 struct bGPdata;
 struct bGPDstroke;
 struct bGPDspoint;
+struct tGPspoint;
+struct Material;
 
 struct GHash;
 struct RNG;
 
+struct Brush;
+struct Scene;
 struct ARegion;
+struct View3D;
 struct View2D;
 struct wmOperatorType;
 
+struct Depsgraph;
+
 struct PointerRNA;
 struct PropertyRNA;
 struct EnumPropertyItem;
 
 
 /* ***************************************************** */
+/* Modal Operator Geometry Preview
+ *
+ * Several modal operators (Fill, Interpolate, Primitive)
+ * need to run some drawing code to display previews, or
+ * to perform screen-space/image-based analysis routines.
+ * The following structs + function prototypes are used
+ * by these operators so that the operator code
+ * (in gpencil_<opname>.c) can communicate with the drawing
+ * code (in drawgpencil.c).
+ *
+ * NOTE: All this is within the gpencil module, so nothing needs
+ * to be exported to other modules.
+ */
+
+/* Internal Operator-State Data ------------------------ */
+
+/* Temporary draw data (no draw manager mode) */
+typedef struct tGPDdraw {
+	struct RegionView3D *rv3d;          /* region to draw */
+	struct Depsgraph *depsgraph;        /* depsgraph */
+	struct Object *ob;                  /* GP object */
+	struct bGPdata *gpd;                /* current GP datablock */
+	struct bGPDlayer *gpl;              /* layer */
+	struct bGPDframe *gpf;              /* frame */
+	struct bGPDframe *t_gpf;            /* temporal frame */
+	struct bGPDstroke *gps;             /* stroke */
+	int disable_fill;                   /* disable fill */
+	int offsx;                          /* windows offset x */
+	int offsy;                          /* windows offset y */
+	int winx;                           /* windows width */
+	int winy;                           /* windows height */
+	int dflag;                          /* flags datablock */
+	short lthick;                       /* layer thickness */
+	float opacity;                      /* opacity */
+	float tintcolor[4];                 /* tint color */
+	bool onion;                         /* onion flag */
+	bool custonion;                     /* use custom onion colors */
+	float diff_mat[4][4];               /* matrix */
+} tGPDdraw;
+
+
+/* Temporary interpolate operation data */
+typedef struct tGPDinterpolate_layer {
+	struct tGPDinterpolate_layer *next, *prev;
+
+	struct bGPDlayer *gpl;            /* layer */
+	struct bGPDframe *prevFrame;      /* frame before current frame (interpolate-from) */
+	struct bGPDframe *nextFrame;      /* frame after current frame (interpolate-to) */
+	struct bGPDframe *interFrame;     /* interpolated frame */
+	float factor;                     /* interpolate factor */
+
+} tGPDinterpolate_layer;
+
+typedef struct tGPDinterpolate {
+	struct Scene *scene;       /* current scene from context */
+	struct ScrArea *sa;        /* area where painting originated */
+	struct ARegion *ar;        /* region where painting originated */
+	struct bGPdata *gpd;       /* current GP datablock */
+	struct Material *mat;      /* current material */
+
+	int cframe;                /* current frame number */
+	ListBase ilayers;          /* (tGPDinterpolate_layer) layers to be interpolated */
+	float shift;               /* value for determining the displacement influence */
+	float init_factor;         /* initial interpolation factor for active layer */
+	float low_limit;           /* shift low limit (-100%) */
+	float high_limit;          /* shift upper limit (200%) */
+	int flag;                  /* flag from toolsettings */
+
+	NumInput num;              /* numeric input */
+	void *draw_handle_3d;      /* handle for drawing strokes while operator is running 3d stuff */
+	void *draw_handle_screen;  /* handle for drawing strokes while operator is running screen stuff */
+} tGPDinterpolate;
+
+
+/* Temporary primitive operation data */
+typedef struct tGPDprimitive {
+	struct Depsgraph *depsgraph;
+	struct wmWindow *win;             /* window where painting originated */
+	struct Scene *scene;              /* current scene from context */
+	struct Object *ob;                /* current active gp object */
+	struct ScrArea *sa;               /* area where painting originated */
+	struct RegionView3D *rv3d;        /* region where painting originated */
+	struct View3D *v3d;               /* view3d where painting originated */
+	struct ARegion *ar;               /* region where painting originated */
+	struct bGPdata *gpd;              /* current GP datablock */
+	struct Material *mat;             /* current material */
+	struct Brush *brush;              /* current brush */
+
+	int cframe;                       /* current frame number */
+	struct bGPDlayer *gpl;            /* layer */
+	struct bGPDframe *gpf;            /* frame */
+	int type;                         /* type of primitive */
+	int tot_edges;                    /* number of polygon edges */
+	int top[2];                       /* first box corner */
+	int bottom[2];                    /* last box corner */
+	int flag;                         /* flag to determine operations in progress */
+
+	int lock_axis;                    /* lock to viewport axis */
+
+	NumInput num;                     /* numeric input */
+	void *draw_handle_3d;             /* handle for drawing strokes while operator is running 3d stuff */
+} tGPDprimitive;
+
+
+/* Modal Operator Drawing Callbacks ------------------------ */
+
+void ED_gp_draw_interpolation(const struct bContext *C, struct tGPDinterpolate *tgpi, const int type);
+void ED_gp_draw_primitives(const struct bContext *C, struct tGPDprimitive *tgpi, const int type);
+void ED_gp_draw_fill(struct tGPDdraw *tgpw);
+
+/* ***************************************************** */
 /* Internal API */
 
 /* Stroke Coordinates API ------------------------------ */
@@ -84,21 +204,30 @@ void gp_point_to_xy_fl(GP_SpaceConversion *gsc, bGPDstroke *gps, bGPDspoint *pt,
                        float *r_x, float *r_y);
 
 void gp_point_to_parent_space(bGPDspoint *pt, float diff_mat[4][4], bGPDspoint *r_pt);
-
-void gp_apply_parent(bGPDlayer *gpl, bGPDstroke *gps);
-
-void gp_apply_parent_point(bGPDlayer *gpl, bGPDspoint *pt);
+/**
+ * Change points position relative to parent object
+ */
+void gp_apply_parent(struct Depsgraph *depsgraph, struct Object *obact, bGPdata *gpd, bGPDlayer *gpl, bGPDstroke *gps);
+/**
+ * Change point position relative to parent object
+ */
+void gp_apply_parent_point(struct Depsgraph *depsgraph, struct Object *obact, bGPdata *gpd, bGPDlayer *gpl, bGPDspoint *pt);
 
 bool gp_point_xy_to_3d(GP_SpaceConversion *gsc, struct Scene *scene, const float screen_co[2], float r_out[3]);
 
+/* helper to convert 2d to 3d */
+void gp_stroke_convertcoords_tpoint(
+        struct Scene *scene, struct ARegion *ar,
+        struct View3D *v3d, struct Object *ob,
+        bGPDlayer *gpl, const struct tGPspoint *point2D,
+        float *depth, float out[3]);
+
 /* Poll Callbacks ------------------------------------ */
 /* gpencil_utils.c */
 
 bool gp_add_poll(struct bContext *C);
 bool gp_active_layer_poll(struct bContext *C);
 bool gp_active_brush_poll(struct bContext *C);
-bool gp_active_palette_poll(struct bContext *C);
-bool gp_active_palettecolor_poll(struct bContext *C);
 bool gp_brush_crt_presets_poll(bContext *C);
 
 /* Copy/Paste Buffer --------------------------------- */
@@ -107,18 +236,20 @@ bool gp_brush_crt_presets_poll(bContext *C);
 extern ListBase gp_strokes_copypastebuf;
 
 /* Build a map for converting between old colornames and destination-color-refs */
-struct GHash *gp_copybuf_validate_colormap(bGPdata *gpd);
+struct GHash *gp_copybuf_validate_colormap(struct bContext *C);
 
 /* Stroke Editing ------------------------------------ */
 
-void gp_stroke_delete_tagged_points(bGPDframe *gpf, bGPDstroke *gps, bGPDstroke *next_stroke, int tag_flags);
-
+void gp_stroke_delete_tagged_points(
+        bGPDframe *gpf, bGPDstroke *gps, bGPDstroke *next_stroke,
+        int tag_flags, bool select);
+int gp_delete_selected_point_wrap(bContext *C);
 
 bool gp_smooth_stroke(bGPDstroke *gps, int i, float inf, bool affect_pressure);
 bool gp_smooth_stroke_strength(bGPDstroke *gps, int i, float inf);
 bool gp_smooth_stroke_thickness(bGPDstroke *gps, int i, float inf);
-void gp_subdivide_stroke(bGPDstroke *gps, const int new_totpoints);
-void gp_randomize_stroke(bGPDstroke *gps, bGPDbrush *brush, struct RNG *rng);
+void gp_subdivide_stroke(bGPDstroke *gps, const int subdivide);
+void gp_randomize_stroke(bGPDstroke *gps, Brush *brush, struct RNG *rng);
 
 /* Layers Enums -------------------------------------- */
 
@@ -129,22 +260,18 @@ const struct EnumPropertyItem *ED_gpencil_layers_with_new_enum_itemf(
         struct bContext *C, struct PointerRNA *ptr, struct PropertyRNA *prop,
         bool *r_free);
 
-/* Enums of GP Brushes */
-const EnumPropertyItem *ED_gpencil_brushes_enum_itemf(
-        bContext *C, PointerRNA *UNUSED(ptr), PropertyRNA *UNUSED(prop),
-        bool *r_free);
-
-/* Enums of GP palettes */
-const EnumPropertyItem *ED_gpencil_palettes_enum_itemf(
-        bContext *C, PointerRNA *UNUSED(ptr), PropertyRNA *UNUSED(prop),
-        bool *r_free);
-
 /* ***************************************************** */
 /* Operator Defines */
 
+/* annotations ------ */
+
+void GPENCIL_OT_annotate(struct wmOperatorType *ot);
+
+
 /* drawing ---------- */
 
 void GPENCIL_OT_draw(struct wmOperatorType *ot);
+void GPENCIL_OT_fill(struct wmOperatorType *ot);
 
 /* Paint Modes for operator */
 typedef enum eGPencil_PaintModes {
@@ -160,6 +287,9 @@ typedef enum eGPencil_PaintModes {
 /* stroke editing ----- */
 
 void GPENCIL_OT_editmode_toggle(struct wmOperatorType *ot);
+void GPENCIL_OT_paintmode_toggle(struct wmOperatorType *ot);
+void GPENCIL_OT_sculptmode_toggle(struct wmOperatorType *ot);
+void GPENCIL_OT_weightmode_toggle(struct wmOperatorType *ot);
 void GPENCIL_OT_selection_opacity_toggle(struct wmOperatorType *ot);
 
 void GPENCIL_OT_select(struct wmOperatorType *ot);
@@ -174,6 +304,7 @@ void GPENCIL_OT_select_more(struct wmOperatorType *ot);
 void GPENCIL_OT_select_less(struct wmOperatorType *ot);
 void GPENCIL_OT_select_first(struct wmOperatorType *ot);
 void GPENCIL_OT_select_last(struct wmOperatorType *ot);
+void GPENCIL_OT_select_alternate(struct wmOperatorType *ot);
 
 void GPENCIL_OT_duplicate(struct wmOperatorType *ot);
 void GPENCIL_OT_delete(struct wmOperatorType *ot);
@@ -218,6 +349,8 @@ void GPENCIL_OT_blank_frame_add(struct wmOperatorType *ot);
 
 void GPENCIL_OT_active_frame_delete(struct wmOperatorType *ot);
 void GPENCIL_OT_active_frames_delete_all(struct wmOperatorType *ot);
+void GPENCIL_OT_frame_duplicate(struct wmOperatorType *ot);
+void GPENCIL_OT_frame_clean_fill(struct wmOperatorType *ot);
 
 void GPENCIL_OT_convert(struct wmOperatorType *ot);
 
@@ -226,6 +359,13 @@ enum {
 	GP_STROKE_JOINCOPY = 1
 };
 
+enum {
+	GP_STROKE_BOX = -1,
+	GP_STROKE_LINE = 1,
+	GP_STROKE_CIRCLE = 2
+};
+
+
 void GPENCIL_OT_stroke_arrange(struct wmOperatorType *ot);
 void GPENCIL_OT_stroke_change_color(struct wmOperatorType *ot);
 void GPENCIL_OT_stroke_lock_color(struct wmOperatorType *ot);
@@ -234,30 +374,15 @@ void GPENCIL_OT_stroke_cyclical_set(struct wmOperatorType *ot);
 void GPENCIL_OT_stroke_join(struct wmOperatorType *ot);
 void GPENCIL_OT_stroke_flip(struct wmOperatorType *ot);
 void GPENCIL_OT_stroke_subdivide(struct wmOperatorType *ot);
+void GPENCIL_OT_stroke_simplify(struct wmOperatorType *ot);
+void GPENCIL_OT_stroke_simplify_fixed(struct wmOperatorType *ot);
+void GPENCIL_OT_stroke_separate(struct wmOperatorType *ot);
+void GPENCIL_OT_stroke_split(struct wmOperatorType *ot);
 
-void GPENCIL_OT_brush_add(struct wmOperatorType *ot);
-void GPENCIL_OT_brush_remove(struct wmOperatorType *ot);
-void GPENCIL_OT_brush_change(struct wmOperatorType *ot);
-void GPENCIL_OT_brush_move(struct wmOperatorType *ot);
 void GPENCIL_OT_brush_presets_create(struct wmOperatorType *ot);
-void GPENCIL_OT_brush_copy(struct wmOperatorType *ot);
 void GPENCIL_OT_brush_select(struct wmOperatorType *ot);
 
-void GPENCIL_OT_palette_add(struct wmOperatorType *ot);
-void GPENCIL_OT_palette_remove(struct wmOperatorType *ot);
-void GPENCIL_OT_palette_change(struct wmOperatorType *ot);
-void GPENCIL_OT_palette_lock_layer(struct wmOperatorType *ot);
-
-void GPENCIL_OT_palettecolor_add(struct wmOperatorType *ot);
-void GPENCIL_OT_palettecolor_remove(struct wmOperatorType *ot);
-void GPENCIL_OT_palettecolor_isolate(struct wmOperatorType *ot);
-void GPENCIL_OT_palettecolor_hide(struct wmOperatorType *ot);
-void GPENCIL_OT_palettecolor_reveal(struct wmOperatorType *ot);
-void GPENCIL_OT_palettecolor_lock_all(struct wmOperatorType *ot);
-void GPENCIL_OT_palettecolor_unlock_all(struct wmOperatorType *ot);
-void GPENCIL_OT_palettecolor_move(struct wmOperatorType *ot);
-void GPENCIL_OT_palettecolor_select(struct wmOperatorType *ot);
-void GPENCIL_OT_palettecolor_copy(struct wmOperatorType *ot);
+void GPENCIL_OT_sculpt_select(struct wmOperatorType *ot);
 
 /* undo stack ---------- */
 
@@ -271,6 +396,30 @@ void GPENCIL_OT_interpolate(struct wmOperatorType *ot);
 void GPENCIL_OT_interpolate_sequence(struct wmOperatorType *ot);
 void GPENCIL_OT_interpolate_reverse(struct wmOperatorType *ot);
 
+/* primitives ---------- */
+
+void GPENCIL_OT_primitive(struct wmOperatorType *ot);
+
+/* vertex groups ------------ */
+void GPENCIL_OT_vertex_group_assign(struct wmOperatorType *ot);
+void GPENCIL_OT_vertex_group_remove_from(struct wmOperatorType *ot);
+void GPENCIL_OT_vertex_group_select(struct wmOperatorType *ot);
+void GPENCIL_OT_vertex_group_deselect(struct wmOperatorType *ot);
+void GPENCIL_OT_vertex_group_invert(struct wmOperatorType *ot);
+void GPENCIL_OT_vertex_group_smooth(struct wmOperatorType *ot);
+
+/* color handle */
+void GPENCIL_OT_lock_layer(struct wmOperatorType *ot);
+void GPENCIL_OT_color_isolate(struct wmOperatorType *ot);
+void GPENCIL_OT_color_hide(struct wmOperatorType *ot);
+void GPENCIL_OT_color_reveal(struct wmOperatorType *ot);
+void GPENCIL_OT_color_lock_all(struct wmOperatorType *ot);
+void GPENCIL_OT_color_unlock_all(struct wmOperatorType *ot);
+void GPENCIL_OT_color_select(struct wmOperatorType *ot);
+
+/* convert old 2.7 files to 2.8 */
+void GPENCIL_OT_convert_old_files(struct wmOperatorType *ot);
+
 /* ****************************************************** */
 /* FILTERED ACTION DATA - TYPES  ---> XXX DEPRECEATED OLD ANIM SYSTEM CODE! */
 
@@ -331,24 +480,37 @@ typedef enum ACTCONT_TYPES {
 */
 #define GP_EDITABLE_STROKES_BEGIN(C, gpl, gps)                                          \
 {                                                                                       \
+	Depsgraph *depsgraph_ = CTX_data_depsgraph(C);                                      \
+	Object *obact_ = CTX_data_active_object(C);                                          \
+	bGPdata *gpd_ = CTX_data_gpencil_data(C);                                            \
+	bool is_multiedit = (bool)GPENCIL_MULTIEDIT_SESSIONS_ON(gpd_);                       \
 	CTX_DATA_BEGIN(C, bGPDlayer*, gpl, editable_gpencil_layers)                         \
 	{                                                                                   \
-		if (gpl->actframe == NULL)                                                      \
-			continue;                                                                   \
-		/* calculate difference matrix if parent object */                              \
-		float diff_mat[4][4];                                                           \
-		ED_gpencil_parent_location(gpl, diff_mat);                                      \
-		/* loop over strokes */                                                         \
-		for (bGPDstroke *gps = gpl->actframe->strokes.first; gps; gps = gps->next) {    \
-			/* skip strokes that are invalid for current view */                        \
-			if (ED_gpencil_stroke_can_use(C, gps) == false)                             \
-				continue;                                                               \
-			/* check if the color is editable */                                        \
-			if (ED_gpencil_stroke_color_use(gpl, gps) == false)                         \
-				continue;                                                               \
-			/* ... Do Stuff With Strokes ...  */
+		bGPDframe *init_gpf = gpl->actframe;                                                \
+		if (is_multiedit) {                                                                 \
+			init_gpf = gpl->frames.first;                                                   \
+		}                                                                                   \
+		for (bGPDframe *gpf = init_gpf; gpf; gpf = gpf->next) {                        \
+			if ((gpf == gpl->actframe) || ((gpf->flag & GP_FRAME_SELECT) && (is_multiedit))) {  \
+				/* calculate difference matrix */                                               \
+				float diff_mat[4][4];                                                           \
+				ED_gpencil_parent_location(depsgraph_, obact_, gpd_, gpl, diff_mat);            \
+				/* loop over strokes */                                                         \
+				for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {    \
+					/* skip strokes that are invalid for current view */                        \
+					if (ED_gpencil_stroke_can_use(C, gps) == false)                             \
+						continue;                                                               \
+					/* check if the color is editable */                                        \
+					if (ED_gpencil_stroke_color_use(obact_, gpl, gps) == false)                         \
+						continue;                                                               \
+					/* ... Do Stuff With Strokes ...  */
 
 #define GP_EDITABLE_STROKES_END    \
+				}                  \
+			}                      \
+			if (!is_multiedit) {   \
+				break;             \
+			}                      \
 		}                          \
 	}                              \
 	CTX_DATA_END;                  \
diff --git a/source/blender/editors/gpencil/gpencil_interpolate.c b/source/blender/editors/gpencil/gpencil_interpolate.c
index cc30d7ec266..6541e9f012a 100644
--- a/source/blender/editors/gpencil/gpencil_interpolate.c
+++ b/source/blender/editors/gpencil/gpencil_interpolate.c
@@ -47,6 +47,7 @@
 
 #include "DNA_color_types.h"
 #include "DNA_gpencil_types.h"
+#include "DNA_meshdata_types.h"
 #include "DNA_object_types.h"
 #include "DNA_scene_types.h"
 #include "DNA_screen_types.h"
@@ -60,6 +61,7 @@
 #include "BKE_library.h"
 #include "BKE_report.h"
 #include "BKE_screen.h"
+#include "BKE_deform.h"
 
 #include "UI_interface.h"
 #include "UI_resources.h"
@@ -79,6 +81,9 @@
 #include "ED_view3d.h"
 #include "ED_space_api.h"
 
+#include "DEG_depsgraph.h"
+#include "DEG_depsgraph_query.h"
+
 #include "gpencil_intern.h"
 
 /* ************************************************ */
@@ -108,11 +113,13 @@ static bool gpencil_view3d_poll(bContext *C)
 static void gp_interpolate_update_points(bGPDstroke *gps_from, bGPDstroke *gps_to, bGPDstroke *new_stroke, float factor)
 {
 	bGPDspoint *prev, *pt, *next;
+	MDeformVert *dvert;
 
 	/* update points */
 	for (int i = 0; i < new_stroke->totpoints; i++) {
 		prev = &gps_from->points[i];
 		pt = &new_stroke->points[i];
+		dvert = &new_stroke->dvert[i];
 		next = &gps_to->points[i];
 
 		/* Interpolate all values */
@@ -120,6 +127,9 @@ static void gp_interpolate_update_points(bGPDstroke *gps_from, bGPDstroke *gps_t
 		pt->pressure = interpf(prev->pressure, next->pressure, 1.0f - factor);
 		pt->strength = interpf(prev->strength, next->strength, 1.0f - factor);
 		CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
+
+		dvert->totweight = 0;
+		dvert->dw = NULL;
 	}
 }
 
@@ -128,6 +138,7 @@ static void gp_interpolate_update_points(bGPDstroke *gps_from, bGPDstroke *gps_t
 /* Helper: Update all strokes interpolated */
 static void gp_interpolate_update_strokes(bContext *C, tGPDinterpolate *tgpi)
 {
+	bGPdata *gpd = tgpi->gpd;
 	tGPDinterpolate_layer *tgpil;
 	const float shift = tgpi->shift;
 
@@ -156,12 +167,14 @@ static void gp_interpolate_update_strokes(bContext *C, tGPDinterpolate *tgpi)
 		}
 	}
 
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
 }
 
 /* Helper: Verify valid strokes for interpolation */
 static bool gp_interpolate_check_todo(bContext *C, bGPdata *gpd)
 {
+	Object *ob = CTX_data_active_object(C);
 	ToolSettings *ts = CTX_data_tool_settings(C);
 	eGP_Interpolate_SettingsFlag flag = ts->gp_interpolate.flag;
 
@@ -190,7 +203,7 @@ static bool gp_interpolate_check_todo(bContext *C, bGPdata *gpd)
 				continue;
 			}
 			/* check if the color is editable */
-			if (ED_gpencil_stroke_color_use(gpl, gps_from) == false) {
+			if (ED_gpencil_stroke_color_use(ob, gpl, gps_from) == false) {
 				continue;
 			}
 
@@ -213,6 +226,7 @@ static void gp_interpolate_set_points(bContext *C, tGPDinterpolate *tgpi)
 	bGPdata *gpd = tgpi->gpd;
 	bGPDlayer *active_gpl = CTX_data_active_gpencil_layer(C);
 	bGPDframe *actframe = active_gpl->actframe;
+	Object *ob = CTX_data_active_object(C);
 
 	/* save initial factor for active layer to define shift limits */
 	tgpi->init_factor = (float)(tgpi->cframe - actframe->framenum) / (actframe->next->framenum - actframe->framenum + 1);
@@ -255,7 +269,7 @@ static void gp_interpolate_set_points(bContext *C, tGPDinterpolate *tgpi)
 			bGPDstroke *gps_to;
 			int fFrame;
 
-			bGPDstroke *new_stroke;
+			bGPDstroke *new_stroke = NULL;
 			bool valid = true;
 
 
@@ -269,7 +283,7 @@ static void gp_interpolate_set_points(bContext *C, tGPDinterpolate *tgpi)
 			}
 
 			/* check if the color is editable */
-			if (ED_gpencil_stroke_color_use(tgpil->gpl, gps_from) == false) {
+			if (ED_gpencil_stroke_color_use(ob, tgpil->gpl, gps_from) == false) {
 				valid = false;
 			}
 
@@ -281,16 +295,13 @@ static void gp_interpolate_set_points(bContext *C, tGPDinterpolate *tgpi)
 			}
 
 			/* create new stroke */
-			new_stroke = MEM_dupallocN(gps_from);
-			new_stroke->points = MEM_dupallocN(gps_from->points);
-			new_stroke->triangles = MEM_dupallocN(gps_from->triangles);
-			new_stroke->tot_triangles = 0;
-			new_stroke->flag |= GP_STROKE_RECALC_CACHES;
+			new_stroke = BKE_gpencil_stroke_duplicate(gps_from);
 
 			if (valid) {
 				/* if destination stroke is smaller, resize new_stroke to size of gps_to stroke */
 				if (gps_from->totpoints > gps_to->totpoints) {
 					new_stroke->points = MEM_recallocN(new_stroke->points, sizeof(*new_stroke->points) * gps_to->totpoints);
+					new_stroke->dvert = MEM_recallocN(new_stroke->dvert, sizeof(*new_stroke->dvert) * gps_to->totpoints);
 					new_stroke->totpoints = gps_to->totpoints;
 					new_stroke->tot_triangles = 0;
 					new_stroke->flag |= GP_STROKE_RECALC_CACHES;
@@ -302,6 +313,7 @@ static void gp_interpolate_set_points(bContext *C, tGPDinterpolate *tgpi)
 				/* need an empty stroke to keep index correct for lookup, but resize to smallest size */
 				new_stroke->totpoints = 0;
 				new_stroke->points = MEM_recallocN(new_stroke->points, sizeof(*new_stroke->points));
+				new_stroke->dvert = MEM_recallocN(new_stroke->dvert, sizeof(*new_stroke->dvert));
 				new_stroke->tot_triangles = 0;
 				new_stroke->triangles = MEM_recallocN(new_stroke->triangles, sizeof(*new_stroke->triangles));
 				new_stroke->flag |= GP_STROKE_RECALC_CACHES;
@@ -317,17 +329,17 @@ static void gp_interpolate_set_points(bContext *C, tGPDinterpolate *tgpi)
 /* Drawing Callbacks */
 
 /* Drawing callback for modal operator in screen mode */
-static void gpencil_interpolate_draw_screen(const struct bContext *UNUSED(C), ARegion *UNUSED(ar), void *arg)
+static void gpencil_interpolate_draw_screen(const struct bContext *C, ARegion *UNUSED(ar), void *arg)
 {
 	tGPDinterpolate *tgpi = (tGPDinterpolate *)arg;
-	ED_gp_draw_interpolation(tgpi, REGION_DRAW_POST_PIXEL);
+	ED_gp_draw_interpolation(C, tgpi, REGION_DRAW_POST_PIXEL);
 }
 
 /* Drawing callback for modal operator in 3d mode */
-static void gpencil_interpolate_draw_3d(const bContext *UNUSED(C), ARegion *UNUSED(ar), void *arg)
+static void gpencil_interpolate_draw_3d(const bContext *C, ARegion *UNUSED(ar), void *arg)
 {
 	tGPDinterpolate *tgpi = (tGPDinterpolate *)arg;
-	ED_gp_draw_interpolation(tgpi, REGION_DRAW_POST_VIEW);
+	ED_gp_draw_interpolation(C, tgpi, REGION_DRAW_POST_VIEW);
 }
 
 /* ----------------------- */
@@ -392,6 +404,7 @@ static void gpencil_interpolate_exit(bContext *C, wmOperator *op)
 {
 	tGPDinterpolate *tgpi = op->customdata;
 	tGPDinterpolate_layer *tgpil;
+	bGPdata *gpd = tgpi->gpd;
 
 	/* don't assume that operator data exists at all */
 	if (tgpi) {
@@ -416,6 +429,7 @@ static void gpencil_interpolate_exit(bContext *C, wmOperator *op)
 		BLI_freelistN(&tgpi->ilayers);
 		MEM_freeN(tgpi);
 	}
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
 
 	/* clear pointer */
@@ -483,9 +497,10 @@ static int gpencil_interpolate_init(bContext *C, wmOperator *op)
 static int gpencil_interpolate_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event))
 {
 	wmWindow *win = CTX_wm_window(C);
-	Scene *scene = CTX_data_scene(C);
 	bGPdata *gpd = CTX_data_gpencil_data(C);
 	bGPDlayer *gpl = CTX_data_active_gpencil_layer(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
 	bGPDframe *actframe = gpl->actframe;
 	tGPDinterpolate *tgpi = NULL;
 
@@ -496,7 +511,7 @@ static int gpencil_interpolate_invoke(bContext *C, wmOperator *op, const wmEvent
 	}
 
 	/* cannot interpolate in extremes */
-	if (ELEM(CFRA, actframe->framenum, actframe->next->framenum)) {
+	if (ELEM(cfra_eval, actframe->framenum, actframe->next->framenum)) {
 		BKE_report(op->reports, RPT_ERROR, "Cannot interpolate as current frame already has existing grease pencil frames");
 		return OPERATOR_CANCELLED;
 	}
@@ -529,6 +544,7 @@ static int gpencil_interpolate_invoke(bContext *C, wmOperator *op, const wmEvent
 
 	/* update shift indicator in header */
 	gpencil_interpolate_status_indicators(C, tgpi);
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
 
 	/* add a modal handler for this operator */
@@ -571,6 +587,8 @@ static int gpencil_interpolate_modal(bContext *C, wmOperator *op, const wmEvent
 					/* make copy of source stroke, then adjust pointer to points too */
 					gps_dst = MEM_dupallocN(gps_src);
 					gps_dst->points = MEM_dupallocN(gps_src->points);
+					gps_dst->dvert = MEM_dupallocN(gps_src->dvert);
+					BKE_gpencil_stroke_weights_duplicate(gps_src, gps_dst);
 					gps_dst->triangles = MEM_dupallocN(gps_src->triangles);
 					gps_dst->flag |= GP_STROKE_RECALC_CACHES;
 					BLI_addtail(&gpf_dst->strokes, gps_dst);
@@ -902,8 +920,11 @@ static int gpencil_interpolate_seq_exec(bContext *C, wmOperator *op)
 	bGPDlayer *active_gpl = CTX_data_active_gpencil_layer(C);
 	bGPDframe *actframe = active_gpl->actframe;
 
-	Scene *scene = CTX_data_scene(C);
+	Object *ob = CTX_data_active_object(C);
 	ToolSettings *ts = CTX_data_tool_settings(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+
 	GP_Interpolate_Settings *ipo_settings = &ts->gp_interpolate;
 	eGP_Interpolate_SettingsFlag flag = ipo_settings->flag;
 
@@ -913,7 +934,7 @@ static int gpencil_interpolate_seq_exec(bContext *C, wmOperator *op)
 		return OPERATOR_CANCELLED;
 	}
 	/* cannot interpolate in extremes */
-	if (ELEM(CFRA, actframe->framenum, actframe->next->framenum)) {
+	if (ELEM(cfra_eval, actframe->framenum, actframe->next->framenum)) {
 		BKE_report(op->reports, RPT_ERROR, "Cannot interpolate as current frame already has existing grease pencil frames");
 		return OPERATOR_CANCELLED;
 	}
@@ -961,7 +982,7 @@ static int gpencil_interpolate_seq_exec(bContext *C, wmOperator *op)
 
 			/* create new strokes data with interpolated points reading original stroke */
 			for (gps_from = prevFrame->strokes.first; gps_from; gps_from = gps_from->next) {
-				bGPDstroke *new_stroke;
+				bGPDstroke *new_stroke = NULL;
 
 				/* only selected */
 				if ((flag & GP_TOOLFLAG_INTERPOLATE_ONLY_SELECTED) && ((gps_from->flag & GP_STROKE_SELECT) == 0)) {
@@ -972,7 +993,7 @@ static int gpencil_interpolate_seq_exec(bContext *C, wmOperator *op)
 					continue;
 				}
 				/* check if the color is editable */
-				if (ED_gpencil_stroke_color_use(gpl, gps_from) == false) {
+				if (ED_gpencil_stroke_color_use(ob, gpl, gps_from) == false) {
 					continue;
 				}
 
@@ -990,15 +1011,15 @@ static int gpencil_interpolate_seq_exec(bContext *C, wmOperator *op)
 				}
 
 				/* create new stroke */
-				new_stroke = MEM_dupallocN(gps_from);
-				new_stroke->points = MEM_dupallocN(gps_from->points);
-				new_stroke->triangles = MEM_dupallocN(gps_from->triangles);
-				new_stroke->tot_triangles = 0;
-				new_stroke->flag |= GP_STROKE_RECALC_CACHES;
+				new_stroke = BKE_gpencil_stroke_duplicate(gps_from);
 
 				/* if destination stroke is smaller, resize new_stroke to size of gps_to stroke */
 				if (gps_from->totpoints > gps_to->totpoints) {
+					/* free weights of removed points */
+					BKE_defvert_array_free_elems(gps_from->dvert + gps_to->totpoints, gps_from->totpoints - gps_to->totpoints);
+
 					new_stroke->points = MEM_recallocN(new_stroke->points, sizeof(*new_stroke->points) * gps_to->totpoints);
+					new_stroke->dvert = MEM_recallocN(new_stroke->dvert, sizeof(*new_stroke->dvert) * gps_to->totpoints);
 					new_stroke->totpoints = gps_to->totpoints;
 					new_stroke->tot_triangles = 0;
 					new_stroke->flag |= GP_STROKE_RECALC_CACHES;
@@ -1014,6 +1035,7 @@ static int gpencil_interpolate_seq_exec(bContext *C, wmOperator *op)
 	}
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
@@ -1055,6 +1077,8 @@ static bool gpencil_interpolate_reverse_poll(bContext *C)
 
 static int gpencil_interpolate_reverse_exec(bContext *C, wmOperator *UNUSED(op))
 {
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+
 	/* Go through each layer, deleting the breakdowns around the current frame,
 	 * but only if there is a keyframe nearby to stop at
 	 */
@@ -1123,6 +1147,7 @@ static int gpencil_interpolate_reverse_exec(bContext *C, wmOperator *UNUSED(op))
 	CTX_DATA_END;
 
 	/* notifiers */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
 	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
 
 	return OPERATOR_FINISHED;
diff --git a/source/blender/editors/gpencil/gpencil_old.c b/source/blender/editors/gpencil/gpencil_old.c
new file mode 100644
index 00000000000..76d519fe371
--- /dev/null
+++ b/source/blender/editors/gpencil/gpencil_old.c
@@ -0,0 +1,219 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2018, Blender Foundation,
+ * This is a new part of Blender
+ *
+ * Contributor(s): Antonio Vazquez
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ *
+ * Use deprecated data to convert old 2.7x files
+ */
+
+/** \file blender/editors/gpencil/gpencil_old.c
+ *  \ingroup edgpencil
+ */
+
+ /* allow to use deprecated functionality */
+#define DNA_DEPRECATED_ALLOW
+
+#include <stdio.h>
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_listbase.h"
+#include "BLI_math.h"
+
+#include "DNA_gpencil_types.h"
+#include "DNA_meshdata_types.h"
+#include "DNA_object_types.h"
+#include "DNA_scene_types.h"
+
+#include "BKE_main.h"
+#include "BKE_brush.h"
+#include "BKE_context.h"
+#include "BKE_deform.h"
+#include "BKE_gpencil.h"
+#include "BKE_object.h"
+#include "BKE_material.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "ED_object.h"
+#include "ED_gpencil.h"
+
+#include "gpencil_intern.h"
+
+ /* Free all of a gp-colors */
+static void free_gpencil_colors(bGPDpalette *palette)
+{
+	/* error checking */
+	if (palette == NULL) {
+		return;
+	}
+
+	/* free colors */
+	BLI_freelistN(&palette->colors);
+}
+
+/* Free all of the gp-palettes and colors */
+static void free_palettes(ListBase *list)
+{
+	bGPDpalette *palette_next;
+
+	/* error checking */
+	if (list == NULL) {
+		return;
+	}
+
+	/* delete palettes */
+	for (bGPDpalette *palette = list->first; palette; palette = palette_next) {
+		palette_next = palette->next;
+		/* free palette colors */
+		free_gpencil_colors(palette);
+
+		MEM_freeN(palette);
+	}
+	BLI_listbase_clear(list);
+}
+
+/* ***************** Convert old 2.7 files to 2.8 ************************ */
+static bool gpencil_convert_old_files_poll(bContext *C)
+{
+	Scene *scene = CTX_data_scene(C);
+
+	return (int) (scene->gpd != NULL);
+}
+
+static int gpencil_convert_old_files_exec(bContext *C, wmOperator *UNUSED(op))
+{
+	Main *bmain = CTX_data_main(C);
+	Scene *scene = CTX_data_scene(C);
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	ViewLayer *view_layer = CTX_data_view_layer(C);
+
+	/* Convert grease pencil scene datablock to GP object */
+	if ((scene->gpd) && (view_layer != NULL)) {
+		Object *ob;
+		ob = BKE_object_add_for_data(bmain, view_layer, OB_GPENCIL, "GP_Scene", &scene->gpd->id, false);
+		zero_v3(ob->loc);
+
+		Paint *paint = BKE_brush_get_gpencil_paint(ts);
+		/* if not exist, create a new one */
+		if (paint->brush == NULL) {
+			/* create new brushes */
+			BKE_brush_gpencil_presets(C);
+		}
+
+		/* convert grease pencil palettes (version >= 2.78)  to materials and weights */
+		bGPdata *gpd = scene->gpd;
+		for (const bGPDpalette *palette = gpd->palettes.first; palette; palette = palette->next) {
+			for (bGPDpalettecolor *palcolor = palette->colors.first; palcolor; palcolor = palcolor->next) {
+
+				/* create material slot */
+				BKE_object_material_slot_add(bmain, ob);
+				Material *ma = BKE_material_add_gpencil(bmain, palcolor->info);
+				assign_material(bmain, ob, ma, ob->totcol, BKE_MAT_ASSIGN_USERPREF);
+
+				/* copy color settings */
+				MaterialGPencilStyle *gp_style = ma->gp_style;
+				copy_v4_v4(gp_style->stroke_rgba, palcolor->color);
+				copy_v4_v4(gp_style->fill_rgba, palcolor->fill);
+				gp_style->flag = palcolor->flag;
+
+				/* fix strokes */
+				for (bGPDlayer *gpl = gpd->layers.first; gpl; gpl = gpl->next) {
+					for (bGPDframe *gpf = gpl->frames.first; gpf; gpf = gpf->next) {
+						for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
+							if ((gps->colorname[0] != '\0') &&
+							    (STREQ(gps->colorname, palcolor->info)))
+							{
+								gps->mat_nr = ob->totcol - 1;
+								gps->colorname[0] = '\0';
+								/* create weights array */
+								gps->dvert = MEM_callocN(sizeof(MDeformVert) * gps->totpoints, "gp_stroke_weights");
+							}
+						}
+					}
+				}
+			}
+		}
+
+		/* free palettes */
+		free_palettes(&gpd->palettes);
+
+		/* disable all GP modes */
+		ED_gpencil_setup_modes(C, gpd, 0);
+
+		/* set cache as dirty */
+		BKE_gpencil_batch_cache_dirty(ob->data);
+
+		scene->gpd = NULL;
+	}
+
+#if 0 /* GPXX */
+	/* Handle object-linked grease pencil datablocks */
+	for (Object *ob = bmain->object.first; ob; ob = ob->id.next) {
+		if (ob->gpd) {
+			if (ob->type == OB_GPENCIL) {
+				/* GP Object - remap the links */
+				ob->data = ob->gpd;
+				ob->gpd = NULL;
+			}
+			else if (ob->type == OB_EMPTY) {
+				/* Empty with GP data - This should be able to be converted
+				* to a GP object with little data loss
+				*/
+				ob->data = ob->gpd;
+				ob->gpd = NULL;
+				ob->type = OB_GPENCIL;
+			}
+			else {
+				/* FIXME: What to do in this case?
+				*
+				* We cannot create new objects for these, as we don't have a scene & scene layer
+				* to put them into from here...
+				*/
+				printf("WARNING: Old Grease Pencil data ('%s') still exists on Object '%s'\n",
+					ob->gpd->id.name + 2, ob->id.name + 2);
+			}
+		}
+	}
+#endif
+
+	/* notifiers */
+	WM_event_add_notifier(C, NC_GPENCIL | ND_DATA | NA_EDITED, NULL);
+
+	return OPERATOR_FINISHED;
+}
+
+void GPENCIL_OT_convert_old_files(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Convert 2.7 Grease Pencil File";
+	ot->idname = "GPENCIL_OT_convert_old_files";
+	ot->description = "Convert 2.7x grease pencil files to 2.8";
+
+	/* callbacks */
+	ot->exec = gpencil_convert_old_files_exec;
+	ot->poll = gpencil_convert_old_files_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+}
diff --git a/source/blender/editors/gpencil/gpencil_ops.c b/source/blender/editors/gpencil/gpencil_ops.c
index 3f114a4dd4a..b2e1758b169 100644
--- a/source/blender/editors/gpencil/gpencil_ops.c
+++ b/source/blender/editors/gpencil/gpencil_ops.c
@@ -35,8 +35,14 @@
 #include "BLI_sys_types.h"
 
 #include "BKE_context.h"
+#include "BKE_brush.h"
+#include "BKE_gpencil.h"
 
+#include "DNA_brush_types.h"
 #include "DNA_gpencil_types.h"
+#include "DNA_object_types.h"
+#include "DNA_screen_types.h"
+#include "DNA_space_types.h"
 
 #include "WM_api.h"
 #include "WM_types.h"
@@ -52,7 +58,7 @@
 /* ****************************************** */
 /* Grease Pencil Keymaps */
 
-/* Generic Drawing Keymap */
+/* Generic Drawing Keymap - Annotations */
 static void ed_keymap_gpencil_general(wmKeyConfig *keyconf)
 {
 	wmKeyMap *keymap = WM_keymap_find(keyconf, "Grease Pencil", 0, 0);
@@ -60,36 +66,22 @@ static void ed_keymap_gpencil_general(wmKeyConfig *keyconf)
 
 	/* Draw  --------------------------------------- */
 	/* draw */
-	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", LEFTMOUSE, KM_PRESS, 0, DKEY);
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_annotate", LEFTMOUSE, KM_PRESS, 0, DKEY);
 	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_DRAW);
 	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
 
 	/* draw - straight lines */
-	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", LEFTMOUSE, KM_PRESS, KM_CTRL, DKEY);
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_annotate", LEFTMOUSE, KM_PRESS, KM_ALT, DKEY);
 	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_DRAW_STRAIGHT);
 	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
 
 	/* draw - poly lines */
-	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", RIGHTMOUSE, KM_PRESS, KM_CTRL, DKEY);
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_annotate", LEFTMOUSE, KM_PRESS, KM_SHIFT | KM_ALT, DKEY);
 	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_DRAW_POLY);
 	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
 
 	/* erase */
-	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", RIGHTMOUSE, KM_PRESS, 0, DKEY);
-	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_ERASER);
-	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
-
-	/* Tablet Mappings for Drawing ------------------ */
-	/* For now, only support direct drawing using the eraser, as most users using a tablet
-	 * may still want to use that as their primary pointing device!
-	 */
-#if 0
-	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", TABLET_STYLUS, KM_PRESS, 0, 0);
-	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_DRAW);
-	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
-#endif
-
-	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", TABLET_ERASER, KM_PRESS, 0, 0);
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_annotate", RIGHTMOUSE, KM_PRESS, 0, DKEY);
 	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_ERASER);
 	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
 
@@ -121,67 +113,85 @@ static bool gp_stroke_editmode_poll(bContext *C)
 	return (gpd && (gpd->flag & GP_DATA_STROKE_EDITMODE));
 }
 
-/* Stroke Editing Keymap - Only when editmode is enabled */
-static void ed_keymap_gpencil_editing(wmKeyConfig *keyconf)
+/* Poll callback for stroke painting mode */
+static bool gp_stroke_paintmode_poll(bContext *C)
 {
-	wmKeyMap *keymap = WM_keymap_find(keyconf, "Grease Pencil Stroke Edit Mode", 0, 0);
-	wmKeyMapItem *kmi;
-
-	/* set poll callback - so that this keymap only gets enabled when stroke editmode is enabled */
-	keymap->poll = gp_stroke_editmode_poll;
-
-	/* ----------------------------------------------- */
-
-	/* Exit EditMode */
-	WM_keymap_add_item(keymap, "GPENCIL_OT_editmode_toggle", TABKEY, KM_PRESS, 0, 0);
-
-	/* Pie Menu - For settings/tools easy access */
-	WM_keymap_add_menu_pie(keymap, "GPENCIL_MT_pie_sculpt", EKEY, KM_PRESS, 0, DKEY);
-
-	/* Brush Settings */
-	/* NOTE: We cannot expose these in the standard keymap, as they will interfere with regular hotkeys
-	 *       in other modes. However, when we are dealing with Stroke Edit Mode, we know for certain
-	 *       that the only data being edited is that of the Grease Pencil strokes
-	 */
-
-	/* CTRL + FKEY = Eraser Radius */
-	kmi = WM_keymap_add_item(keymap, "WM_OT_radial_control", FKEY, KM_PRESS, KM_CTRL, 0);
-	RNA_string_set(kmi->ptr, "data_path_primary", "user_preferences.edit.grease_pencil_eraser_radius");
-
-	/* Interpolation */
-	WM_keymap_add_item(keymap, "GPENCIL_OT_interpolate", EKEY, KM_PRESS, KM_CTRL | KM_ALT, 0);
-	WM_keymap_add_item(keymap, "GPENCIL_OT_interpolate_sequence", EKEY, KM_PRESS, KM_SHIFT | KM_CTRL, 0);
+	/* TODO: limit this to mode, but review 2D editors */
+	bGPdata *gpd = CTX_data_gpencil_data(C);
+	return (gpd && (gpd->flag & GP_DATA_STROKE_PAINTMODE));
+}
 
-	/* Sculpting ------------------------------------- */
+/* Poll callback for stroke painting (draw brush) */
+static bool gp_stroke_paintmode_draw_poll(bContext *C)
+{
+	/* TODO: limit this to mode, but review 2D editors */
+	bGPdata *gpd = CTX_data_gpencil_data(C);
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	Brush *brush = BKE_brush_getactive_gpencil(ts);
+	return (gpd && (gpd->flag & GP_DATA_STROKE_PAINTMODE) && (brush) &&
+	        (brush->gpencil_settings->brush_type == GP_BRUSH_TYPE_DRAW));
+}
 
-	/* Brush-Based Editing:
-	 *   EKEY + LMB                          = Single stroke, draw immediately
-	 *        + Other Modifiers (Ctrl/Shift) = Invert, Smooth, etc.
-	 *
-	 * For the modal version, use D+E -> Sculpt
-	 */
-	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_brush_paint", LEFTMOUSE, KM_PRESS, 0, EKEY);
-	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+/* Poll callback for stroke painting (erase brush) */
+static bool gp_stroke_paintmode_erase_poll(bContext *C)
+{
+	/* TODO: limit this to mode, but review 2D editors */
+	bGPdata *gpd = CTX_data_gpencil_data(C);
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	Brush *brush = BKE_brush_getactive_gpencil(ts);
+	return (gpd && (gpd->flag & GP_DATA_STROKE_PAINTMODE) && (brush) &&
+	        (brush->gpencil_settings->brush_type == GP_BRUSH_TYPE_ERASE));
+}
 
-	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_brush_paint", LEFTMOUSE, KM_PRESS, KM_CTRL, EKEY);
-	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
-	/*RNA_boolean_set(kmi->ptr, "use_invert", true);*/
+/* Poll callback for stroke painting (fill) */
+static bool gp_stroke_paintmode_fill_poll(bContext *C)
+{
+	/* TODO: limit this to mode, but review 2D editors */
+	bGPdata *gpd = CTX_data_gpencil_data(C);
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	Brush *brush = BKE_brush_getactive_gpencil(ts);
+	return (gpd && (gpd->flag & GP_DATA_STROKE_PAINTMODE) && (brush) &&
+	        (brush->gpencil_settings->brush_type == GP_BRUSH_TYPE_FILL));
+}
 
-	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_brush_paint", LEFTMOUSE, KM_PRESS, KM_SHIFT, EKEY);
-	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
-	/*RNA_boolean_set(kmi->ptr, "use_smooth", true);*/
+/* Poll callback for stroke sculpting mode */
+static bool gp_stroke_sculptmode_poll(bContext *C)
+{
+	bGPdata *gpd = CTX_data_gpencil_data(C);
+	Object *ob = CTX_data_active_object(C);
+	ScrArea *sa = CTX_wm_area(C);
+
+	/* if not gpencil object and not view3d, need sculpt keys if edit mode */
+	if (sa->spacetype != SPACE_VIEW3D) {
+		return ((gpd) && (gpd->flag & GP_DATA_STROKE_EDITMODE));
+	}
+	else {
+		/* weight paint is a submode of sculpt */
+		if ((ob) && (ob->type == OB_GPENCIL)) {
+			return GPENCIL_SCULPT_OR_WEIGHT_MODE(gpd);
+		}
+	}
+
+	return 0;
+}
 
+/* Poll callback for stroke weight paint mode */
+static bool gp_stroke_weightmode_poll(bContext *C)
+{
+	bGPdata *gpd = CTX_data_gpencil_data(C);
+	Object *ob = CTX_data_active_object(C);
 
-	/* Shift-FKEY = Sculpt Strength */
-	kmi = WM_keymap_add_item(keymap, "WM_OT_radial_control", FKEY, KM_PRESS, KM_SHIFT, 0);
-	RNA_string_set(kmi->ptr, "data_path_primary", "tool_settings.gpencil_sculpt.brush.strength");
+	if ((ob) && (ob->type == OB_GPENCIL)) {
+		return (gpd && (gpd->flag & GP_DATA_STROKE_WEIGHTMODE));
+	}
 
-	/* FKEY = Sculpt Brush Size */
-	kmi = WM_keymap_add_item(keymap, "WM_OT_radial_control", FKEY, KM_PRESS, 0, 0);
-	RNA_string_set(kmi->ptr, "data_path_primary", "tool_settings.gpencil_sculpt.brush.size");
+	return 0;
+}
 
+static void ed_keymap_gpencil_selection(wmKeyMap *keymap)
+{
+	wmKeyMapItem *kmi;
 
-	/* Selection ------------------------------------- */
 	/* select all */
 	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_select_all", AKEY, KM_PRESS, 0, 0);
 	RNA_enum_set(kmi->ptr, "action", SEL_SELECT);
@@ -204,17 +214,14 @@ static void ed_keymap_gpencil_editing(wmKeyConfig *keyconf)
 	RNA_boolean_set(kmi->ptr, "deselect", true);
 
 	/* In the Node Editor, lasso select needs ALT modifier too (as somehow CTRL+LMB drag gets taken for "cut" quite early)
-	 * There probably isn't too much harm adding this for other editors too as part of standard GP editing keymap. This hotkey
-	 * combo doesn't seem to see much use under standard scenarios?
-	 */
+	* There probably isn't too much harm adding this for other editors too as part of standard GP editing keymap. This hotkey
+	* combo doesn't seem to see much use under standard scenarios?
+	*/
 	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_select_lasso", EVT_TWEAK_A, KM_ANY, KM_CTRL | KM_ALT, 0);
 	RNA_boolean_set(kmi->ptr, "deselect", false);
 	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_select_lasso", EVT_TWEAK_A, KM_ANY, KM_SHIFT | KM_CTRL | KM_ALT, 0);
 	RNA_boolean_set(kmi->ptr, "deselect", true);
 
-	/* normal select */
-	WM_keymap_add_item(keymap, "GPENCIL_OT_select", SELECTMOUSE, KM_PRESS, 0, 0);
-
 	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_select", SELECTMOUSE, KM_PRESS, KM_SHIFT, 0);
 	RNA_boolean_set(kmi->ptr, "extend", true);
 	RNA_boolean_set(kmi->ptr, "toggle", true);
@@ -223,17 +230,130 @@ static void ed_keymap_gpencil_editing(wmKeyConfig *keyconf)
 	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_select", SELECTMOUSE, KM_PRESS, KM_ALT, 0);
 	RNA_boolean_set(kmi->ptr, "entire_strokes", true);
 
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_select", SELECTMOUSE, KM_PRESS, KM_ALT | KM_SHIFT, 0);
+	RNA_boolean_set(kmi->ptr, "entire_strokes", true);
+	RNA_boolean_set(kmi->ptr, "extend", true);
+
 	/* select linked */
 	/* NOTE: While LKEY is redundant, not having it breaks the mode illusion too much */
 	WM_keymap_add_item(keymap, "GPENCIL_OT_select_linked", LKEY, KM_PRESS, 0, 0);
 	WM_keymap_add_item(keymap, "GPENCIL_OT_select_linked", LKEY, KM_PRESS, KM_CTRL, 0);
 
+	/* select alternate */
+	WM_keymap_add_item(keymap, "GPENCIL_OT_select_alternate", LKEY, KM_PRESS, KM_SHIFT, 0);
+
 	/* select grouped */
 	WM_keymap_add_item(keymap, "GPENCIL_OT_select_grouped", GKEY, KM_PRESS, KM_SHIFT, 0);
 
 	/* select more/less */
 	WM_keymap_add_item(keymap, "GPENCIL_OT_select_more", PADPLUSKEY, KM_PRESS, KM_CTRL, 0);
 	WM_keymap_add_item(keymap, "GPENCIL_OT_select_less", PADMINUS, KM_PRESS, KM_CTRL, 0);
+}
+
+static void ed_keymap_gpencil_display(wmKeyMap *keymap)
+{
+	wmKeyMapItem *kmi;
+
+	kmi = WM_keymap_add_item(keymap, "WM_OT_context_toggle", QKEY, KM_PRESS, KM_SHIFT, 0);
+	RNA_string_set(kmi->ptr, "data_path", "space_data.overlay.use_gpencil_edit_lines");
+
+	kmi = WM_keymap_add_item(keymap, "WM_OT_context_toggle", QKEY, KM_PRESS, KM_SHIFT | KM_ALT, 0);
+	RNA_string_set(kmi->ptr, "data_path", "space_data.overlay.use_gpencil_multiedit_line_only");
+}
+
+static void ed_keymap_gpencil_sculpt(wmKeyMap *keymap)
+{
+	wmKeyMapItem *kmi;
+
+	/* Pie Menu - For settings/tools easy access */
+	WM_keymap_add_menu_pie(keymap, "GPENCIL_PIE_sculpt", EKEY, KM_PRESS, 0, DKEY);
+
+	/* Sculpting ------------------------------------- */
+
+	/* Brush-Based Editing:
+	*   EKEY + LMB                          = Single stroke, draw immediately
+	*        + Other Modifiers (Ctrl/Shift) = Invert, Smooth, etc.
+	*
+	* For the modal version, use D+E -> Sculpt
+	*/
+	/* GPXX: disabled to make toolsystem works */
+	//kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_brush_paint", LEFTMOUSE, KM_PRESS, 0, 0);
+	//RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_brush_paint", LEFTMOUSE, KM_PRESS, KM_CTRL, 0);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+	RNA_boolean_set(kmi->ptr, "keep_brush", true);
+	/*RNA_boolean_set(kmi->ptr, "use_invert", true);*/
+
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_brush_paint", LEFTMOUSE, KM_PRESS, KM_SHIFT, 0);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+	RNA_boolean_set(kmi->ptr, "keep_brush", true);
+	/*RNA_boolean_set(kmi->ptr, "use_smooth", true);*/
+
+	/* Shift-FKEY = Sculpt Strength */
+	kmi = WM_keymap_add_item(keymap, "WM_OT_radial_control", FKEY, KM_PRESS, KM_SHIFT, 0);
+	RNA_string_set(kmi->ptr, "data_path_primary", "tool_settings.gpencil_sculpt.brush.strength");
+
+	/* FKEY = Sculpt Brush Size */
+	kmi = WM_keymap_add_item(keymap, "WM_OT_radial_control", FKEY, KM_PRESS, 0, 0);
+	RNA_string_set(kmi->ptr, "data_path_primary", "tool_settings.gpencil_sculpt.brush.size");
+
+	/* menu sculpt specials */
+	WM_keymap_add_menu(keymap, "VIEW3D_MT_gpencil_sculpt_specials", WKEY, KM_PRESS, 0, 0);
+}
+
+static void ed_keymap_gpencil_weight(wmKeyMap *keymap)
+{
+	wmKeyMapItem *kmi;
+
+
+	/* Brush-Based Editing:
+	*   EKEY + LMB                          = Single stroke, draw immediately
+	*        + Other Modifiers (Ctrl/Shift) = Invert, Smooth, etc.
+	*
+	* For the modal version, use D+E -> Sculpt
+	*/
+	/* GPXX: disabled to make toolsystem works */
+	//kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_brush_paint", LEFTMOUSE, KM_PRESS, 0, 0);
+	//RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_brush_paint", LEFTMOUSE, KM_PRESS, KM_CTRL, 0);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+	RNA_boolean_set(kmi->ptr, "keep_brush", true);
+	/*RNA_boolean_set(kmi->ptr, "use_invert", true);*/
+
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_brush_paint", LEFTMOUSE, KM_PRESS, KM_SHIFT, 0);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+	RNA_boolean_set(kmi->ptr, "keep_brush", true);
+	/*RNA_boolean_set(kmi->ptr, "use_smooth", true);*/
+}
+
+/* Stroke Editing Keymap - Only when editmode is enabled */
+static void ed_keymap_gpencil_editing(wmKeyConfig *keyconf)
+{
+	wmKeyMap *keymap = WM_keymap_find(keyconf, "Grease Pencil Stroke Edit Mode", 0, 0);
+	wmKeyMapItem *kmi;
+
+	/* set poll callback - so that this keymap only gets enabled when stroke editmode is enabled */
+	keymap->poll = gp_stroke_editmode_poll;
+
+	/* ----------------------------------------------- */
+
+	/* Brush Settings */
+	/* NOTE: We cannot expose these in the standard keymap, as they will interfere with regular hotkeys
+	 *       in other modes. However, when we are dealing with Stroke Edit Mode, we know for certain
+	 *       that the only data being edited is that of the Grease Pencil strokes
+	 */
+
+	/* Interpolation */
+	WM_keymap_add_item(keymap, "GPENCIL_OT_interpolate", EKEY, KM_PRESS, KM_CTRL | KM_ALT, 0);
+	WM_keymap_add_item(keymap, "GPENCIL_OT_interpolate_sequence", EKEY, KM_PRESS, KM_SHIFT | KM_CTRL, 0);
+
+	/* normal select */
+	WM_keymap_add_item(keymap, "GPENCIL_OT_select", SELECTMOUSE, KM_PRESS, 0, 0);
+
+	/* Selection */
+	ed_keymap_gpencil_selection(keymap);
 
 	/* Editing ----------------------------------------- */
 
@@ -251,7 +371,13 @@ static void ed_keymap_gpencil_editing(wmKeyConfig *keyconf)
 	WM_keymap_add_item(keymap, "GPENCIL_OT_active_frames_delete_all", DELKEY, KM_PRESS, KM_SHIFT, 0);
 
 	/* menu edit specials */
-	WM_keymap_add_menu(keymap, "GPENCIL_MT_gpencil_edit_specials", WKEY, KM_PRESS, 0, 0);
+	WM_keymap_add_menu(keymap, "VIEW3D_MT_gpencil_edit_specials", WKEY, KM_PRESS, 0, 0);
+
+	/* menu separate */
+	WM_keymap_add_menu(keymap, "GPENCIL_MT_separate", PKEY, KM_PRESS, 0, 0);
+
+	/* split strokes */
+	WM_keymap_add_item(keymap, "GPENCIL_OT_stroke_split", VKEY, KM_PRESS, 0, 0);
 
 	/* join strokes */
 	WM_keymap_add_item(keymap, "GPENCIL_OT_stroke_join", JKEY, KM_PRESS, KM_CTRL, 0);
@@ -271,7 +397,6 @@ static void ed_keymap_gpencil_editing(wmKeyConfig *keyconf)
 	/* snap */
 	WM_keymap_add_menu(keymap, "GPENCIL_MT_snap", SKEY, KM_PRESS, KM_SHIFT, 0);
 
-
 	/* convert to geometry */
 	WM_keymap_add_item(keymap, "GPENCIL_OT_convert", CKEY, KM_PRESS, KM_ALT, 0);
 
@@ -288,6 +413,9 @@ static void ed_keymap_gpencil_editing(wmKeyConfig *keyconf)
 
 	WM_keymap_add_item(keymap, "GPENCIL_OT_selection_opacity_toggle", HKEY, KM_PRESS, KM_CTRL, 0);
 
+	/* Display. */
+	ed_keymap_gpencil_display(keymap);
+
 	/* Isolate Layer */
 	WM_keymap_add_item(keymap, "GPENCIL_OT_layer_isolate", PADASTERKEY, KM_PRESS, 0, 0);
 
@@ -317,27 +445,233 @@ static void ed_keymap_gpencil_editing(wmKeyConfig *keyconf)
 	/* Proportional Editing */
 	ED_keymap_proportional_cycle(keyconf, keymap);
 	ED_keymap_proportional_editmode(keyconf, keymap, true);
+
+	/* menu - add GP object (3d view only) */
+	WM_keymap_add_item(keymap, "OBJECT_OT_gpencil_add", AKEY, KM_PRESS, KM_SHIFT, 0);
+
+	/* menu vertex group */
+	WM_keymap_add_menu(keymap, "GPENCIL_MT_gpencil_vertex_group", GKEY, KM_PRESS, KM_CTRL, 0);
+
+	/* toggle edit mode */
+	WM_keymap_add_item(keymap, "GPENCIL_OT_editmode_toggle", TABKEY, KM_PRESS, 0, 0);
+}
+
+/* keys for draw with a drawing brush (no fill) */
+static void ed_keymap_gpencil_painting_draw(wmKeyConfig *keyconf)
+{
+	wmKeyMap *keymap = WM_keymap_find(keyconf, "Grease Pencil Stroke Paint (Draw brush)", 0, 0);
+	wmKeyMapItem *kmi;
+
+	/* set poll callback */
+	keymap->poll = gp_stroke_paintmode_draw_poll;
+
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", LEFTMOUSE, KM_PRESS, 0, 0);
+	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_DRAW);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", LEFTMOUSE, KM_PRESS, KM_SHIFT, 0);
+	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_DRAW);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+
+	/* draw - straight lines */
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", LEFTMOUSE, KM_PRESS, KM_ALT, 0);
+	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_DRAW_STRAIGHT);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+
+	/* draw - poly lines */
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", LEFTMOUSE, KM_PRESS, KM_SHIFT | KM_ALT, 0);
+	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_DRAW_POLY);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+
+	/* erase */
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", LEFTMOUSE, KM_PRESS, KM_CTRL, 0);
+	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_ERASER);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+
+	/* Tablet Mappings for Drawing ------------------ */
+	/* For now, only support direct drawing using the eraser, as most users using a tablet
+	* may still want to use that as their primary pointing device!
+	*/
+#if 0
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", TABLET_STYLUS, KM_PRESS, 0, 0);
+	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_DRAW);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+#endif
+
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", TABLET_ERASER, KM_PRESS, 0, 0);
+	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_ERASER);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+
+	/* Selection (used by eraser) */
+	/* border select */
+	WM_keymap_add_item(keymap, "GPENCIL_OT_select_border", BKEY, KM_PRESS, 0, 0);
+
+	/* lasso select */
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_select_lasso", EVT_TWEAK_A, KM_ANY, KM_CTRL | KM_ALT, 0);
+	RNA_boolean_set(kmi->ptr, "deselect", false);
+}
+
+/* keys for draw with a eraser brush (erase) */
+static void ed_keymap_gpencil_painting_erase(wmKeyConfig *keyconf)
+{
+	wmKeyMap *keymap = WM_keymap_find(keyconf, "Grease Pencil Stroke Paint (Erase)", 0, 0);
+	wmKeyMapItem *kmi;
+
+	/* set poll callback */
+	keymap->poll = gp_stroke_paintmode_erase_poll;
+
+	/* erase */
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", LEFTMOUSE, KM_PRESS, 0, 0);
+	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_ERASER);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", TABLET_ERASER, KM_PRESS, 0, 0);
+	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_ERASER);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+
+	/* Selection (used by eraser) */
+	/* border select */
+	WM_keymap_add_item(keymap, "GPENCIL_OT_select_border", BKEY, KM_PRESS, 0, 0);
+
+	/* lasso select */
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_select_lasso", EVT_TWEAK_A, KM_ANY, KM_CTRL | KM_ALT, 0);
+	RNA_boolean_set(kmi->ptr, "deselect", false);
+}
+
+/* keys for draw with a fill brush */
+static void ed_keymap_gpencil_painting_fill(wmKeyConfig *keyconf)
+{
+	wmKeyMap *keymap = WM_keymap_find(keyconf, "Grease Pencil Stroke Paint (Fill)", 0, 0);
+	wmKeyMapItem *kmi;
+
+	/* set poll callback */
+	keymap->poll = gp_stroke_paintmode_fill_poll;
+
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_fill", LEFTMOUSE, KM_PRESS, 0, 0);
+	RNA_boolean_set(kmi->ptr, "on_back", false);
+
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_fill", LEFTMOUSE, KM_PRESS, KM_SHIFT, 0);
+	RNA_boolean_set(kmi->ptr, "on_back", true);
+
+	/* if press alternative key, the brush now it's for drawing areas */
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", LEFTMOUSE, KM_PRESS, KM_CTRL, 0);
+	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_DRAW);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+	/* disable straight lines */
+	RNA_boolean_set(kmi->ptr, "disable_straight", true);
+
+	/* if press alternative key, the brush now it's for drawing lines */
+	kmi = WM_keymap_add_item(keymap, "GPENCIL_OT_draw", LEFTMOUSE, KM_PRESS, KM_ALT, 0);
+	RNA_enum_set(kmi->ptr, "mode", GP_PAINTMODE_DRAW);
+	RNA_boolean_set(kmi->ptr, "wait_for_input", false);
+	/* disable straight lines */
+	RNA_boolean_set(kmi->ptr, "disable_straight", true);
+	/* enable special stroke with no fill flag */
+	RNA_boolean_set(kmi->ptr, "disable_fill", true);
+}
+
+/* Stroke Painting Keymap - Only when paintmode is enabled */
+static void ed_keymap_gpencil_painting(wmKeyConfig *keyconf)
+{
+	wmKeyMap *keymap = WM_keymap_find(keyconf, "Grease Pencil Stroke Paint Mode", 0, 0);
+	wmKeyMapItem *kmi;
+
+	/* set poll callback - so that this keymap only gets enabled when stroke paintmode is enabled */
+	keymap->poll = gp_stroke_paintmode_poll;
+
+	/* FKEY = Brush Size */
+	kmi = WM_keymap_add_item(keymap, "WM_OT_radial_control", FKEY, KM_PRESS, 0, 0);
+	RNA_string_set(kmi->ptr, "data_path_primary", "tool_settings.gpencil_paint.brush.size");
+
+	/* CTRL + FKEY = Eraser Radius */
+	kmi = WM_keymap_add_item(keymap, "WM_OT_radial_control", FKEY, KM_PRESS, KM_CTRL, 0);
+	RNA_string_set(kmi->ptr, "data_path_primary", "user_preferences.edit.grease_pencil_eraser_radius");
+
+	/* menu draw specials */
+	WM_keymap_add_menu(keymap, "GPENCIL_MT_gpencil_draw_specials", WKEY, KM_PRESS, 0, 0);
+
+	/* menu draw delete */
+	WM_keymap_add_menu(keymap, "GPENCIL_MT_gpencil_draw_delete", XKEY, KM_PRESS, 0, 0);
+
 }
 
+/* Stroke Sculpting Keymap - Only when sculptmode is enabled */
+static void ed_keymap_gpencil_sculpting(wmKeyConfig *keyconf)
+{
+	wmKeyMap *keymap = WM_keymap_find(keyconf, "Grease Pencil Stroke Sculpt Mode", 0, 0);
+
+	/* set poll callback - so that this keymap only gets enabled when stroke sculptmode is enabled */
+	keymap->poll = gp_stroke_sculptmode_poll;
+
+	/* Selection */
+	ed_keymap_gpencil_selection(keymap);
+
+	/* sculpt */
+	ed_keymap_gpencil_sculpt(keymap);
+
+	/* Display. */
+	ed_keymap_gpencil_display(keymap);
+}
+
+/* Stroke Weight Paint Keymap - Only when weight is enabled */
+static void ed_keymap_gpencil_weightpainting(wmKeyConfig *keyconf)
+{
+	wmKeyMap *keymap = WM_keymap_find(keyconf, "Grease Pencil Stroke Weight Mode", 0, 0);
+	wmKeyMapItem *kmi;
+
+	/* set poll callback - so that this keymap only gets enabled when stroke sculptmode is enabled */
+	keymap->poll = gp_stroke_weightmode_poll;
+
+	/* Selection */
+	ed_keymap_gpencil_selection(keymap);
+
+	/* sculpt */
+	ed_keymap_gpencil_weight(keymap);
+
+	/* Shift-FKEY = Sculpt Strength */
+	kmi = WM_keymap_add_item(keymap, "WM_OT_radial_control", FKEY, KM_PRESS, KM_SHIFT, 0);
+	RNA_string_set(kmi->ptr, "data_path_primary", "tool_settings.gpencil_sculpt.weight_brush.strength");
+
+	/* FKEY = Sculpt Brush Size */
+	kmi = WM_keymap_add_item(keymap, "WM_OT_radial_control", FKEY, KM_PRESS, 0, 0);
+	RNA_string_set(kmi->ptr, "data_path_primary", "tool_settings.gpencil_sculpt.weight_brush.size");
+
+	/* Display. */
+	ed_keymap_gpencil_display(keymap);
+}
 /* ==================== */
 
 void ED_keymap_gpencil(wmKeyConfig *keyconf)
 {
 	ed_keymap_gpencil_general(keyconf);
 	ed_keymap_gpencil_editing(keyconf);
+	ed_keymap_gpencil_painting(keyconf);
+	ed_keymap_gpencil_painting_draw(keyconf);
+	ed_keymap_gpencil_painting_erase(keyconf);
+	ed_keymap_gpencil_painting_fill(keyconf);
+	ed_keymap_gpencil_sculpting(keyconf);
+	ed_keymap_gpencil_weightpainting(keyconf);
 }
 
 /* ****************************************** */
 
 void ED_operatortypes_gpencil(void)
 {
+	/* Annotations -------------------- */
+
+	WM_operatortype_append(GPENCIL_OT_annotate);
+
 	/* Drawing ----------------------- */
 
 	WM_operatortype_append(GPENCIL_OT_draw);
+	WM_operatortype_append(GPENCIL_OT_fill);
 
 	/* Editing (Strokes) ------------ */
 
 	WM_operatortype_append(GPENCIL_OT_editmode_toggle);
+	WM_operatortype_append(GPENCIL_OT_paintmode_toggle);
+	WM_operatortype_append(GPENCIL_OT_sculptmode_toggle);
+	WM_operatortype_append(GPENCIL_OT_weightmode_toggle);
 	WM_operatortype_append(GPENCIL_OT_selection_opacity_toggle);
 
 	WM_operatortype_append(GPENCIL_OT_select);
@@ -352,6 +686,7 @@ void ED_operatortypes_gpencil(void)
 	WM_operatortype_append(GPENCIL_OT_select_less);
 	WM_operatortype_append(GPENCIL_OT_select_first);
 	WM_operatortype_append(GPENCIL_OT_select_last);
+	WM_operatortype_append(GPENCIL_OT_select_alternate);
 
 	WM_operatortype_append(GPENCIL_OT_duplicate);
 	WM_operatortype_append(GPENCIL_OT_delete);
@@ -391,6 +726,8 @@ void ED_operatortypes_gpencil(void)
 
 	WM_operatortype_append(GPENCIL_OT_active_frame_delete);
 	WM_operatortype_append(GPENCIL_OT_active_frames_delete_all);
+	WM_operatortype_append(GPENCIL_OT_frame_duplicate);
+	WM_operatortype_append(GPENCIL_OT_frame_clean_fill);
 
 	WM_operatortype_append(GPENCIL_OT_convert);
 
@@ -402,36 +739,46 @@ void ED_operatortypes_gpencil(void)
 	WM_operatortype_append(GPENCIL_OT_stroke_join);
 	WM_operatortype_append(GPENCIL_OT_stroke_flip);
 	WM_operatortype_append(GPENCIL_OT_stroke_subdivide);
+	WM_operatortype_append(GPENCIL_OT_stroke_simplify);
+	WM_operatortype_append(GPENCIL_OT_stroke_simplify_fixed);
+	WM_operatortype_append(GPENCIL_OT_stroke_separate);
+	WM_operatortype_append(GPENCIL_OT_stroke_split);
 
-	WM_operatortype_append(GPENCIL_OT_palette_add);
-	WM_operatortype_append(GPENCIL_OT_palette_remove);
-	WM_operatortype_append(GPENCIL_OT_palette_change);
-	WM_operatortype_append(GPENCIL_OT_palette_lock_layer);
-	WM_operatortype_append(GPENCIL_OT_palettecolor_add);
-	WM_operatortype_append(GPENCIL_OT_palettecolor_remove);
-	WM_operatortype_append(GPENCIL_OT_palettecolor_isolate);
-	WM_operatortype_append(GPENCIL_OT_palettecolor_hide);
-	WM_operatortype_append(GPENCIL_OT_palettecolor_reveal);
-	WM_operatortype_append(GPENCIL_OT_palettecolor_lock_all);
-	WM_operatortype_append(GPENCIL_OT_palettecolor_unlock_all);
-	WM_operatortype_append(GPENCIL_OT_palettecolor_move);
-	WM_operatortype_append(GPENCIL_OT_palettecolor_select);
-	WM_operatortype_append(GPENCIL_OT_palettecolor_copy);
-
-	WM_operatortype_append(GPENCIL_OT_brush_add);
-	WM_operatortype_append(GPENCIL_OT_brush_remove);
-	WM_operatortype_append(GPENCIL_OT_brush_change);
-	WM_operatortype_append(GPENCIL_OT_brush_move);
 	WM_operatortype_append(GPENCIL_OT_brush_presets_create);
-	WM_operatortype_append(GPENCIL_OT_brush_copy);
 	WM_operatortype_append(GPENCIL_OT_brush_select);
 
+	WM_operatortype_append(GPENCIL_OT_sculpt_select);
+
+	/* vertex groups */
+	WM_operatortype_append(GPENCIL_OT_vertex_group_assign);
+	WM_operatortype_append(GPENCIL_OT_vertex_group_remove_from);
+	WM_operatortype_append(GPENCIL_OT_vertex_group_select);
+	WM_operatortype_append(GPENCIL_OT_vertex_group_deselect);
+	WM_operatortype_append(GPENCIL_OT_vertex_group_invert);
+	WM_operatortype_append(GPENCIL_OT_vertex_group_smooth);
+
+	/* color handle */
+	WM_operatortype_append(GPENCIL_OT_lock_layer);
+	WM_operatortype_append(GPENCIL_OT_color_isolate);
+	WM_operatortype_append(GPENCIL_OT_color_hide);
+	WM_operatortype_append(GPENCIL_OT_color_reveal);
+	WM_operatortype_append(GPENCIL_OT_color_lock_all);
+	WM_operatortype_append(GPENCIL_OT_color_unlock_all);
+	WM_operatortype_append(GPENCIL_OT_color_select);
+
 	/* Editing (Time) --------------- */
 
 	/* Interpolation */
 	WM_operatortype_append(GPENCIL_OT_interpolate);
 	WM_operatortype_append(GPENCIL_OT_interpolate_sequence);
 	WM_operatortype_append(GPENCIL_OT_interpolate_reverse);
+
+	/* Primitives */
+	WM_operatortype_append(GPENCIL_OT_primitive);
+
+	/* convert old 2.7 files to 2.8 */
+	WM_operatortype_append(GPENCIL_OT_convert_old_files);
+
 }
 
 void ED_operatormacros_gpencil(void)
diff --git a/source/blender/editors/gpencil/gpencil_paint.c b/source/blender/editors/gpencil/gpencil_paint.c
index ec8a213301f..d4371926eb4 100644
--- a/source/blender/editors/gpencil/gpencil_paint.c
+++ b/source/blender/editors/gpencil/gpencil_paint.c
@@ -46,26 +46,32 @@
 
 #include "PIL_time.h"
 
+#include "DNA_meshdata_types.h"
+#include "DNA_object_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_gpencil_types.h"
+#include "DNA_material_types.h"
+#include "DNA_brush_types.h"
+#include "DNA_windowmanager_types.h"
+
 #include "BKE_colortools.h"
+#include "BKE_main.h"
+#include "BKE_brush.h"
+#include "BKE_paint.h"
 #include "BKE_context.h"
 #include "BKE_global.h"
 #include "BKE_gpencil.h"
-#include "BKE_main.h"
-#include "BKE_paint.h"
 #include "BKE_report.h"
+#include "BKE_layer.h"
+#include "BKE_material.h"
 #include "BKE_screen.h"
 #include "BKE_tracking.h"
 
-#include "DNA_object_types.h"
-#include "DNA_scene_types.h"
-#include "DNA_gpencil_types.h"
-#include "DNA_brush_types.h"
-#include "DNA_windowmanager_types.h"
-
 #include "UI_view2d.h"
 
 #include "ED_gpencil.h"
 #include "ED_screen.h"
+#include "ED_object.h"
 #include "ED_view3d.h"
 #include "ED_clip.h"
 
@@ -82,6 +88,7 @@
 #include "WM_types.h"
 
 #include "DEG_depsgraph.h"
+#include "DEG_depsgraph_query.h"
 
 #include "gpencil_intern.h"
 
@@ -110,6 +117,8 @@ typedef enum eGPencil_PaintFlags {
 	GP_PAINTFLAG_STROKEADDED    = (1 << 1),
 	GP_PAINTFLAG_V3D_ERASER_DEPTH = (1 << 2),
 	GP_PAINTFLAG_SELECTMASK     = (1 << 3),
+	GP_PAINTFLAG_HARD_ERASER    = (1 << 4),
+	GP_PAINTFLAG_STROKE_ERASER  = (1 << 5),
 } eGPencil_PaintFlags;
 
 
@@ -117,10 +126,13 @@ typedef enum eGPencil_PaintFlags {
  *   "p" = op->customdata
  */
 typedef struct tGPsdata {
-	Main *bmain;
+	bContext *C;
+
+	Main *bmain;        /* main database pointer */
 	Scene *scene;       /* current scene from context */
 	struct Depsgraph *depsgraph;
 
+	Object *ob;         /* current object */
 	wmWindow *win;      /* window where painting originated */
 	ScrArea *sa;        /* area where painting originated */
 	ARegion *ar;        /* region where painting originated */
@@ -165,14 +177,23 @@ typedef struct tGPsdata {
 
 	void *erasercursor; /* radial cursor data for drawing eraser */
 
-	bGPDpalettecolor *palettecolor; /* current palette color */
-	bGPDbrush *brush; /* current drawing brush */
+	/* mat settings are only used for 3D view */
+	Material *material;   /* current material */
+
+	Brush *brush;    /* current drawing brush */
+	Brush *eraser;   /* default eraser brush */
 	short straight[2];   /* 1: line horizontal, 2: line vertical, other: not defined, second element position */
 	int lock_axis;       /* lock drawing to one axis */
+	bool disable_fill;   /* the stroke is no fill mode */
 
 	RNG *rng;
 
 	short keymodifier;   /* key used for invoking the operator */
+	short shift;         /* shift modifier flag */
+
+	float totpixlen;     /* size in pixels for uv calculation */
+
+	ReportList *reports;
 } tGPsdata;
 
 /* ------ */
@@ -183,6 +204,14 @@ typedef struct tGPsdata {
 /* minimum length of new segment before new point can be added */
 #define MIN_EUCLIDEAN_PX    (U.gp_euclideandist)
 
+static void gp_update_cache(bGPdata *gpd)
+{
+	if (gpd) {
+		DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+		gpd->flag |= GP_DATA_CACHE_IS_DIRTY;
+	}
+}
+
 static bool gp_stroke_added_check(tGPsdata *p)
 {
 	return (p->gpf && p->gpf->strokes.last && p->flags & GP_PAINTFLAG_STROKEADDED);
@@ -192,6 +221,9 @@ static void gp_stroke_added_enable(tGPsdata *p)
 {
 	BLI_assert(p->gpf->strokes.last != NULL);
 	p->flags |= GP_PAINTFLAG_STROKEADDED;
+
+	/* drawing batch cache is dirty now */
+	gp_update_cache(p->gpd);
 }
 
 /* ------ */
@@ -206,30 +238,42 @@ static void gp_session_validatebuffer(tGPsdata *p);
 static bool gpencil_draw_poll(bContext *C)
 {
 	if (ED_operator_regionactive(C)) {
-		/* check if current context can support GPencil data */
-		if (ED_gpencil_data_get_pointers(C, NULL) != NULL) {
-			/* check if Grease Pencil isn't already running */
-			if (ED_gpencil_session_active() == 0)
-				return 1;
-			else
-				CTX_wm_operator_poll_msg_set(C, "Grease Pencil operator is already active");
+		ScrArea *sa = CTX_wm_area(C);
+		if (!ELEM(sa->spacetype, SPACE_VIEW3D)) {
+			/* check if current context can support GPencil data */
+			if (ED_gpencil_data_get_pointers(C, NULL) != NULL) {
+				/* check if Grease Pencil isn't already running */
+				if (ED_gpencil_session_active() == 0)
+					return 1;
+				else
+					CTX_wm_operator_poll_msg_set(C, "Grease Pencil operator is already active");
+			}
+			else {
+				CTX_wm_operator_poll_msg_set(C, "Failed to find Grease Pencil data to draw into");
+			}
+			return 0;
 		}
+		/* 3D Viewport */
 		else {
-			CTX_wm_operator_poll_msg_set(C, "Failed to find Grease Pencil data to draw into");
+			if (ED_gpencil_session_active() == 0) {
+				return 1;
+			}
+			else {
+				return 0;
+			}
 		}
 	}
 	else {
 		CTX_wm_operator_poll_msg_set(C, "Active region not set");
+		return 0;
 	}
-
-	return 0;
 }
 
 /* check if projecting strokes into 3d-geometry in the 3D-View */
 static bool gpencil_project_check(tGPsdata *p)
 {
 	bGPdata *gpd = p->gpd;
-	return ((gpd->sbuffer_sflag & GP_STROKE_3DSPACE) && (*p->align_flag & (GP_PROJECT_DEPTH_VIEW | GP_PROJECT_DEPTH_STROKE)));
+	return ((gpd->runtime.sbuffer_sflag & GP_STROKE_3DSPACE) && (*p->align_flag & (GP_PROJECT_DEPTH_VIEW | GP_PROJECT_DEPTH_STROKE)));
 }
 
 /* ******************************************* */
@@ -241,38 +285,39 @@ static bool gpencil_project_check(tGPsdata *p)
 static void gp_get_3d_reference(tGPsdata *p, float vec[3])
 {
 	View3D *v3d = p->sa->spacedata.first;
-	const float *fp = ED_view3d_cursor3d_get(p->scene, v3d)->location;
-
-	/* the reference point used depends on the owner... */
-#if 0 /* XXX: disabled for now, since we can't draw relative to the owner yet */
+	Object *ob = NULL;
 	if (p->ownerPtr.type == &RNA_Object) {
-		Object *ob = (Object *)p->ownerPtr.data;
-
-		/* active Object
-		 *  - use relative distance of 3D-cursor from object center
-		 */
-		sub_v3_v3v3(vec, fp, ob->loc);
-	}
-	else
-#endif
-	{
-		/* use 3D-cursor */
-		copy_v3_v3(vec, fp);
+		ob = (Object *)p->ownerPtr.data;
 	}
+	ED_gp_get_drawing_reference(v3d, p->scene, ob, p->gpl, *p->align_flag, vec);
 }
 
 /* Stroke Editing ---------------------------- */
-
 /* check if the current mouse position is suitable for adding a new point */
 static bool gp_stroke_filtermval(tGPsdata *p, const int mval[2], int pmval[2])
 {
+	Brush *brush = p->brush;
 	int dx = abs(mval[0] - pmval[0]);
 	int dy = abs(mval[1] - pmval[1]);
+	brush->gpencil_settings->flag &= ~GP_BRUSH_STABILIZE_MOUSE_TEMP;
 
 	/* if buffer is empty, just let this go through (i.e. so that dots will work) */
-	if (p->gpd->sbuffer_size == 0)
+	if (p->gpd->runtime.sbuffer_size == 0) {
 		return true;
-
+	}
+	/* if lazy mouse, check minimum distance */
+	else if (GPENCIL_LAZY_MODE(brush, p->shift)) {
+		brush->gpencil_settings->flag |= GP_BRUSH_STABILIZE_MOUSE_TEMP;
+		if ((dx * dx + dy * dy) > (brush->smooth_stroke_radius * brush->smooth_stroke_radius)) {
+			return true;
+		}
+		else {
+			/* If the mouse is moving within the radius of the last move,
+			* don't update the mouse position. This allows sharp turns. */
+			copy_v2_v2_int(p->mval, p->mvalo);
+			return false;
+		}
+	}
 	/* check if mouse moved at least certain distance on both axes (best case)
 	 *	- aims to eliminate some jitter-noise from input when trying to draw straight lines freehand
 	 */
@@ -291,47 +336,17 @@ static bool gp_stroke_filtermval(tGPsdata *p, const int mval[2], int pmval[2])
 		return false;
 }
 
-/* reproject the points of the stroke to a plane locked to axis to avoid stroke offset */
-static void gp_project_points_to_plane(RegionView3D *rv3d, bGPDstroke *gps, const float origin[3], const int axis)
-{
-	float plane_normal[3];
-	float vn[3];
-
-	float ray[3];
-	float rpoint[3];
-
-	/* normal vector for a plane locked to axis */
-	zero_v3(plane_normal);
-	plane_normal[axis] = 1.0f;
-
-	/* Reproject the points in the plane */
-	for (int i = 0; i < gps->totpoints; i++) {
-		bGPDspoint *pt = &gps->points[i];
-
-		/* get a vector from the point with the current view direction of the viewport */
-		ED_view3d_global_to_vector(rv3d, &pt->x, vn);
-
-		/* calculate line extrem point to create a ray that cross the plane */
-		mul_v3_fl(vn, -50.0f);
-		add_v3_v3v3(ray, &pt->x, vn);
-
-		/* if the line never intersect, the point is not changed */
-		if (isect_line_plane_v3(rpoint, &pt->x, ray, origin, plane_normal)) {
-			copy_v3_v3(&pt->x, rpoint);
-		}
-	}
-}
-
 /* reproject stroke to plane locked to axis in 3d cursor location */
 static void gp_reproject_toplane(tGPsdata *p, bGPDstroke *gps)
 {
 	bGPdata *gpd = p->gpd;
+	Object *obact = (Object *)p->ownerPtr.data;
+
 	float origin[3];
-	float cursor[3];
 	RegionView3D *rv3d = p->ar->regiondata;
 
 	/* verify the stroke mode is CURSOR 3d space mode */
-	if ((gpd->sbuffer_sflag & GP_STROKE_3DSPACE) == 0) {
+	if ((gpd->runtime.sbuffer_sflag & GP_STROKE_3DSPACE) == 0) {
 		return;
 	}
 	if ((*p->align_flag & GP_PROJECT_VIEWSPACE) == 0) {
@@ -341,12 +356,9 @@ static void gp_reproject_toplane(tGPsdata *p, bGPDstroke *gps)
 		return;
 	}
 
-	/* get 3d cursor and set origin for locked axis only. Uses axis-1 because the enum for XYZ start with 1 */
-	gp_get_3d_reference(p, cursor);
-	zero_v3(origin);
-	origin[p->lock_axis - 1] = cursor[p->lock_axis - 1];
-
-	gp_project_points_to_plane(rv3d, gps, origin, p->lock_axis - 1);
+	/* get drawing origin */
+	gp_get_3d_reference(p, origin);
+	ED_gp_project_stroke_to_plane(obact, rv3d, gps, origin, p->lock_axis - 1);
 }
 
 /* convert screen-coordinates to buffer-coordinates */
@@ -356,7 +368,7 @@ static void gp_stroke_convertcoords(tGPsdata *p, const int mval[2], float out[3]
 	bGPdata *gpd = p->gpd;
 
 	/* in 3d-space - pt->x/y/z are 3 side-by-side floats */
-	if (gpd->sbuffer_sflag & GP_STROKE_3DSPACE) {
+	if (gpd->runtime.sbuffer_sflag & GP_STROKE_3DSPACE) {
 		if (gpencil_project_check(p) && (ED_view3d_autodist_simple(p->ar, mval, out, 0, depth))) {
 			/* projecting onto 3D-Geometry
 			 *	- nothing more needs to be done here, since view_autodist_simple() has already done it
@@ -365,7 +377,8 @@ static void gp_stroke_convertcoords(tGPsdata *p, const int mval[2], float out[3]
 		else {
 			float mval_prj[2];
 			float rvec[3], dvec[3];
-			float mval_f[2] = {UNPACK2(mval)};
+			float mval_f[2];
+			copy_v2fl_v2i(mval_f, mval);
 			float zfac;
 
 			/* Current method just converts each point in screen-coordinates to
@@ -390,42 +403,23 @@ static void gp_stroke_convertcoords(tGPsdata *p, const int mval[2], float out[3]
 			}
 		}
 	}
-
-	/* 2d - on 'canvas' (assume that p->v2d is set) */
-	else if ((gpd->sbuffer_sflag & GP_STROKE_2DSPACE) && (p->v2d)) {
-		UI_view2d_region_to_view(p->v2d, mval[0], mval[1], &out[0], &out[1]);
-		mul_v3_m4v3(out, p->imat, out);
-	}
-
-	/* 2d - relative to screen (viewport area) */
-	else {
-		if (p->subrect == NULL) { /* normal 3D view */
-			out[0] = (float)(mval[0]) / (float)(p->ar->winx) * 100;
-			out[1] = (float)(mval[1]) / (float)(p->ar->winy) * 100;
-		}
-		else { /* camera view, use subrect */
-			out[0] = ((mval[0] - p->subrect->xmin) / BLI_rctf_size_x(p->subrect)) * 100;
-			out[1] = ((mval[1] - p->subrect->ymin) / BLI_rctf_size_y(p->subrect)) * 100;
-		}
-	}
 }
 
 /* apply jitter to stroke */
-static void gp_brush_jitter(
-        bGPdata *gpd, bGPDbrush *brush, tGPspoint *pt, const int mval[2], int r_mval[2], RNG *rng)
+static void gp_brush_jitter(bGPdata *gpd, Brush *brush, tGPspoint *pt, const int mval[2], int r_mval[2], RNG *rng)
 {
 	float pressure = pt->pressure;
 	float tmp_pressure = pt->pressure;
-	if (brush->draw_jitter > 0.0f) {
-		float curvef = curvemapping_evaluateF(brush->cur_jitter, 0, pressure);
-		tmp_pressure = curvef * brush->draw_sensitivity;
+	if (brush->gpencil_settings->draw_jitter > 0.0f) {
+		float curvef = curvemapping_evaluateF(brush->gpencil_settings->curve_jitter, 0, pressure);
+		tmp_pressure = curvef * brush->gpencil_settings->draw_sensitivity;
 	}
-	const float exfactor = (brush->draw_jitter + 2.0f) * (brush->draw_jitter + 2.0f); /* exponential value */
+	const float exfactor = (brush->gpencil_settings->draw_jitter + 2.0f) * (brush->gpencil_settings->draw_jitter + 2.0f); /* exponential value */
 	const float fac = BLI_rng_get_float(rng) * exfactor * tmp_pressure;
 	/* Jitter is applied perpendicular to the mouse movement vector (2D space) */
 	float mvec[2], svec[2];
 	/* mouse movement in ints -> floats */
-	if (gpd->sbuffer_size > 1) {
+	if (gpd->runtime.sbuffer_size > 1) {
 		mvec[0] = (float)(mval[0] - (pt - 1)->x);
 		mvec[1] = (float)(mval[1] - (pt - 1)->y);
 		normalize_v2(mvec);
@@ -451,18 +445,18 @@ static void gp_brush_jitter(
 }
 
 /* apply pressure change depending of the angle of the stroke to simulate a pen with shape */
-static void gp_brush_angle(bGPdata *gpd, bGPDbrush *brush, tGPspoint *pt, const int mval[2])
+static void gp_brush_angle(bGPdata *gpd, Brush *brush, tGPspoint *pt, const int mval[2])
 {
 	float mvec[2];
-	float sen = brush->draw_angle_factor; /* sensitivity */;
+	float sen = brush->gpencil_settings->draw_angle_factor; /* sensitivity */;
 	float fac;
 	float mpressure;
 
-	float angle = brush->draw_angle; /* default angle of brush in radians */;
+	float angle = brush->gpencil_settings->draw_angle; /* default angle of brush in radians */;
 	float v0[2] = { cos(angle), sin(angle) }; /* angle vector of the brush with full thickness */
 
 	/* Apply to first point (only if there are 2 points because before no data to do it ) */
-	if (gpd->sbuffer_size == 1) {
+	if (gpd->runtime.sbuffer_size == 1) {
 		mvec[0] = (float)(mval[0] - (pt - 1)->x);
 		mvec[1] = (float)(mval[1] - (pt - 1)->y);
 		normalize_v2(mvec);
@@ -475,7 +469,7 @@ static void gp_brush_angle(bGPdata *gpd, bGPDbrush *brush, tGPspoint *pt, const
 	}
 
 	/* apply from second point */
-	if (gpd->sbuffer_size >= 1) {
+	if (gpd->runtime.sbuffer_size >= 1) {
 		mvec[0] = (float)(mval[0] - (pt - 1)->x);
 		mvec[1] = (float)(mval[1] - (pt - 1)->y);
 		normalize_v2(mvec);
@@ -490,21 +484,83 @@ static void gp_brush_angle(bGPdata *gpd, bGPDbrush *brush, tGPspoint *pt, const
 
 }
 
+/* Apply smooth to buffer while drawing
+* to smooth point C, use 2 before (A, B) and current point (D):
+*
+*   A----B-----C------D
+*
+* \param p	    Temp data
+* \param inf    Influence factor
+* \param idx	Index of the last point (need minimum 3 points in the array)
+*/
+static void gp_smooth_buffer(tGPsdata *p, float inf, int idx)
+{
+	bGPdata *gpd = p->gpd;
+	short num_points = gpd->runtime.sbuffer_size;
+
+	/* Do nothing if not enough points to smooth out */
+	if ((num_points < 3) || (idx < 3) || (inf == 0.0f)) {
+		return;
+	}
+
+	tGPspoint *points = (tGPspoint *)gpd->runtime.sbuffer;
+	float steps = 4.0f;
+	if (idx < 4) {
+		steps--;
+	}
+
+	tGPspoint *pta = idx >= 4 ? &points[idx - 4] : NULL;
+	tGPspoint *ptb = idx >= 3 ? &points[idx - 3] : NULL;
+	tGPspoint *ptc = idx >= 2 ? &points[idx - 2] : NULL;
+	tGPspoint *ptd = &points[idx - 1];
+
+	float sco[2] = { 0.0f };
+	float a[2], b[2], c[2], d[2];
+	const float average_fac = 1.0f / steps;
+
+	/* Compute smoothed coordinate by taking the ones nearby */
+	if (pta) {
+		copy_v2fl_v2i(a, &pta->x);
+		madd_v2_v2fl(sco, a, average_fac);
+	}
+	if (ptb) {
+		copy_v2fl_v2i(b, &ptb->x);
+		madd_v2_v2fl(sco, b, average_fac);
+	}
+	if (ptc) {
+		copy_v2fl_v2i(c, &ptc->x);
+		madd_v2_v2fl(sco, c, average_fac);
+	}
+	if (ptd) {
+		copy_v2fl_v2i(d, &ptd->x);
+		madd_v2_v2fl(sco, d, average_fac);
+	}
+
+	/* Based on influence factor, blend between original and optimal smoothed coordinate */
+	interp_v2_v2v2(c, c, sco, inf);
+	round_v2i_v2fl(&ptc->x, c);
+}
+
 /* add current stroke-point to buffer (returns whether point was successfully added) */
 static short gp_stroke_addpoint(
         tGPsdata *p, const int mval[2], float pressure, double curtime)
 {
 	bGPdata *gpd = p->gpd;
-	bGPDbrush *brush = p->brush;
+	Brush *brush = p->brush;
 	tGPspoint *pt;
 	ToolSettings *ts = p->scene->toolsettings;
+	Object *obact = (Object *)p->ownerPtr.data;
+	Depsgraph *depsgraph = p->depsgraph;                                      \
+	RegionView3D *rv3d = p->ar->regiondata;
+	View3D *v3d = p->sa->spacedata.first;
+	MaterialGPencilStyle *gp_style = p->material->gp_style;
 
 	/* check painting mode */
 	if (p->paintmode == GP_PAINTMODE_DRAW_STRAIGHT) {
 		/* straight lines only - i.e. only store start and end point in buffer */
-		if (gpd->sbuffer_size == 0) {
+		if (gpd->runtime.sbuffer_size == 0) {
 			/* first point in buffer (start point) */
-			pt = (tGPspoint *)(gpd->sbuffer);
+			pt = (tGPspoint *)(gpd->runtime.sbuffer);
 
 			/* store settings */
 			copy_v2_v2_int(&pt->x, mval);
@@ -513,13 +569,13 @@ static short gp_stroke_addpoint(
 			pt->time = (float)(curtime - p->inittime);
 
 			/* increment buffer size */
-			gpd->sbuffer_size++;
+			gpd->runtime.sbuffer_size++;
 		}
 		else {
 			/* just reset the endpoint to the latest value
 			 *	- assume that pointers for this are always valid...
 			 */
-			pt = ((tGPspoint *)(gpd->sbuffer) + 1);
+			pt = ((tGPspoint *)(gpd->runtime.sbuffer) + 1);
 
 			/* store settings */
 			copy_v2_v2_int(&pt->x, mval);
@@ -528,31 +584,35 @@ static short gp_stroke_addpoint(
 			pt->time = (float)(curtime - p->inittime);
 
 			/* now the buffer has 2 points (and shouldn't be allowed to get any larger) */
-			gpd->sbuffer_size = 2;
+			gpd->runtime.sbuffer_size = 2;
 		}
 
+		/* tag depsgraph to update object */
+		DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
 		/* can keep carrying on this way :) */
 		return GP_STROKEADD_NORMAL;
 	}
 	else if (p->paintmode == GP_PAINTMODE_DRAW) { /* normal drawing */
 		/* check if still room in buffer */
-		if (gpd->sbuffer_size >= GP_STROKE_BUFFER_MAX)
+		if (gpd->runtime.sbuffer_size >= GP_STROKE_BUFFER_MAX)
 			return GP_STROKEADD_OVERFLOW;
 
 		/* get pointer to destination point */
-		pt = ((tGPspoint *)(gpd->sbuffer) + gpd->sbuffer_size);
+		pt = ((tGPspoint *)(gpd->runtime.sbuffer) + gpd->runtime.sbuffer_size);
 
 		/* store settings */
 		/* pressure */
-		if (brush->flag & GP_BRUSH_USE_PRESSURE) {
-			float curvef = curvemapping_evaluateF(brush->cur_sensitivity, 0, pressure);
-			pt->pressure = curvef * brush->draw_sensitivity;
+		if (brush->gpencil_settings->flag & GP_BRUSH_USE_PRESSURE) {
+			float curvef = curvemapping_evaluateF(brush->gpencil_settings->curve_sensitivity, 0, pressure);
+			pt->pressure = curvef * brush->gpencil_settings->draw_sensitivity;
 		}
 		else {
 			pt->pressure = 1.0f;
 		}
+
 		/* Apply jitter to position */
-		if (brush->draw_jitter > 0.0f) {
+		if ((brush->gpencil_settings->flag & GP_BRUSH_GROUP_RANDOM) && (brush->gpencil_settings->draw_jitter > 0.0f)) {
 			int r_mval[2];
 			gp_brush_jitter(gpd, brush, pt, mval, r_mval, p->rng);
 			copy_v2_v2_int(&pt->x, r_mval);
@@ -561,42 +621,62 @@ static short gp_stroke_addpoint(
 			copy_v2_v2_int(&pt->x, mval);
 		}
 		/* apply randomness to pressure */
-		if ((brush->draw_random_press > 0.0f) && (brush->flag & GP_BRUSH_USE_RANDOM_PRESSURE)) {
-			float curvef = curvemapping_evaluateF(brush->cur_sensitivity, 0, pressure);
-			float tmp_pressure = curvef * brush->draw_sensitivity;
+		if ((brush->gpencil_settings->flag & GP_BRUSH_GROUP_RANDOM) &&
+		    (brush->gpencil_settings->draw_random_press > 0.0f))
+		{
+			float curvef = curvemapping_evaluateF(brush->gpencil_settings->curve_sensitivity, 0, pressure);
+			float tmp_pressure = curvef * brush->gpencil_settings->draw_sensitivity;
 			if (BLI_rng_get_float(p->rng) > 0.5f) {
-				pt->pressure -= tmp_pressure * brush->draw_random_press * BLI_rng_get_float(p->rng);
+				pt->pressure -= tmp_pressure * brush->gpencil_settings->draw_random_press * BLI_rng_get_float(p->rng);
 			}
 			else {
-				pt->pressure += tmp_pressure * brush->draw_random_press * BLI_rng_get_float(p->rng);
+				pt->pressure += tmp_pressure * brush->gpencil_settings->draw_random_press * BLI_rng_get_float(p->rng);
 			}
 			CLAMP(pt->pressure, GPENCIL_STRENGTH_MIN, 1.0f);
 		}
 
+		/* apply randomness to uv texture rotation */
+		if ((brush->gpencil_settings->flag & GP_BRUSH_GROUP_RANDOM) && (brush->gpencil_settings->uv_random > 0.0f)) {
+			if (BLI_rng_get_float(p->rng) > 0.5f) {
+				pt->uv_rot = (BLI_rng_get_float(p->rng) * M_PI * -1) * brush->gpencil_settings->uv_random;
+			}
+			else {
+				pt->uv_rot = (BLI_rng_get_float(p->rng) * M_PI) * brush->gpencil_settings->uv_random;
+			}
+			CLAMP(pt->uv_rot, -M_PI_2, M_PI_2);
+		}
+		else {
+			pt->uv_rot = 0.0f;
+		}
+
 		/* apply angle of stroke to brush size */
-		if (brush->draw_angle_factor > 0.0f) {
+		if ((brush->gpencil_settings->flag & GP_BRUSH_GROUP_RANDOM) &&
+		    (brush->gpencil_settings->draw_angle_factor > 0.0f))
+		{
 			gp_brush_angle(gpd, brush, pt, mval);
 		}
 
 		/* color strength */
-		if (brush->flag & GP_BRUSH_USE_STENGTH_PRESSURE) {
-			float curvef = curvemapping_evaluateF(brush->cur_strength, 0, pressure);
-			float tmp_pressure = curvef * brush->draw_sensitivity;
+		if (brush->gpencil_settings->flag & GP_BRUSH_USE_STENGTH_PRESSURE) {
+			float curvef = curvemapping_evaluateF(brush->gpencil_settings->curve_strength, 0, pressure);
+			float tmp_pressure = curvef * brush->gpencil_settings->draw_sensitivity;
 
-			pt->strength = tmp_pressure * brush->draw_strength;
+			pt->strength = tmp_pressure * brush->gpencil_settings->draw_strength;
 		}
 		else {
-			pt->strength = brush->draw_strength;
+			pt->strength = brush->gpencil_settings->draw_strength;
 		}
 		CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
 
 		/* apply randomness to color strength */
-		if ((brush->draw_random_press > 0.0f) && (brush->flag & GP_BRUSH_USE_RANDOM_STRENGTH)) {
+		if ((brush->gpencil_settings->flag & GP_BRUSH_GROUP_RANDOM) &&
+		    (brush->gpencil_settings->draw_random_strength > 0.0f))
+		{
 			if (BLI_rng_get_float(p->rng) > 0.5f) {
-				pt->strength -= pt->strength * brush->draw_random_press * BLI_rng_get_float(p->rng);
+				pt->strength -= pt->strength * brush->gpencil_settings->draw_random_strength * BLI_rng_get_float(p->rng);
 			}
 			else {
-				pt->strength += pt->strength * brush->draw_random_press * BLI_rng_get_float(p->rng);
+				pt->strength += pt->strength * brush->gpencil_settings->draw_random_strength * BLI_rng_get_float(p->rng);
 			}
 			CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
 		}
@@ -604,11 +684,49 @@ static short gp_stroke_addpoint(
 		/* point time */
 		pt->time = (float)(curtime - p->inittime);
 
+		/* point uv (only 3d view) */
+		if ((p->sa->spacetype == SPACE_VIEW3D) && (gpd->runtime.sbuffer_size > 1)) {
+			float pixsize = gp_style->texture_pixsize / 1000000.0f;
+			tGPspoint *ptb = (tGPspoint *)gpd->runtime.sbuffer + gpd->runtime.sbuffer_size - 2;
+			bGPDspoint spt, spt2;
+
+			/* get origin to reproject point */
+			float origin[3];
+			gp_get_3d_reference(p, origin);
+			/* reproject current */
+			ED_gpencil_tpoint_to_point(p->ar, origin, pt, &spt);
+			ED_gp_project_point_to_plane(obact, rv3d, origin, ts->gp_sculpt.lock_axis - 1, &spt);
+
+			/* reproject previous */
+			ED_gpencil_tpoint_to_point(p->ar, origin, ptb, &spt2);
+			ED_gp_project_point_to_plane(obact, rv3d, origin, ts->gp_sculpt.lock_axis - 1, &spt2);
+
+			p->totpixlen += len_v3v3(&spt.x, &spt2.x) / pixsize;
+			pt->uv_fac = p->totpixlen;
+			if ((gp_style) && (gp_style->sima)) {
+				pt->uv_fac /= gp_style->sima->gen_x;
+			}
+		}
+		else {
+			p->totpixlen = 0.0f;
+			pt->uv_fac = 0.0f;
+		}
+
 		/* increment counters */
-		gpd->sbuffer_size++;
+		gpd->runtime.sbuffer_size++;
+
+		/* smooth while drawing previous points with a reduction factor for previous */
+		if (brush->gpencil_settings->active_smooth > 0.0f) {
+			for (int s = 0; s < 3; s++) {
+				gp_smooth_buffer(p, brush->gpencil_settings->active_smooth * ((3.0f - s) / 3.0f), gpd->runtime.sbuffer_size - s);
+			}
+		}
+
+		/* tag depsgraph to update object */
+		DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
 
 		/* check if another operation can still occur */
-		if (gpd->sbuffer_size == GP_STROKE_BUFFER_MAX)
+		if (gpd->runtime.sbuffer_size == GP_STROKE_BUFFER_MAX)
 			return GP_STROKEADD_FULL;
 		else
 			return GP_STROKEADD_NORMAL;
@@ -617,7 +735,7 @@ static short gp_stroke_addpoint(
 
 		bGPDlayer *gpl = BKE_gpencil_layer_getactive(gpd);
 		/* get pointer to destination point */
-		pt = (tGPspoint *)(gpd->sbuffer);
+		pt = (tGPspoint *)(gpd->runtime.sbuffer);
 
 		/* store settings */
 		copy_v2_v2_int(&pt->x, mval);
@@ -632,14 +750,17 @@ static short gp_stroke_addpoint(
 		if (gp_stroke_added_check(p)) {
 			bGPDstroke *gps = p->gpf->strokes.last;
 			bGPDspoint *pts;
+			MDeformVert *dvert;
 
 			/* first time point is adding to temporary buffer -- need to allocate new point in stroke */
-			if (gpd->sbuffer_size == 0) {
+			if (gpd->runtime.sbuffer_size == 0) {
 				gps->points = MEM_reallocN(gps->points, sizeof(bGPDspoint) * (gps->totpoints + 1));
+				gps->dvert = MEM_reallocN(gps->dvert, sizeof(MDeformVert) * (gps->totpoints + 1));
 				gps->totpoints++;
 			}
 
 			pts = &gps->points[gps->totpoints - 1];
+			dvert = &gps->dvert[gps->totpoints - 1];
 
 			/* special case for poly lines: normally,
 			 * depth is needed only when creating new stroke from buffer,
@@ -647,8 +768,6 @@ static short gp_stroke_addpoint(
 			 * so initialize depth buffer before converting coordinates
 			 */
 			if (gpencil_project_check(p)) {
-				View3D *v3d = p->sa->spacedata.first;
-
 				view3d_region_operator_needs_opengl(p->win, p->ar);
 				ED_view3d_autodist_init(
 				        p->depsgraph, p->ar, v3d, (ts->gpencil_v3d_align & GP_PROJECT_DEPTH_STROKE) ? 1 : 0);
@@ -656,25 +775,32 @@ static short gp_stroke_addpoint(
 
 			/* convert screen-coordinates to appropriate coordinates (and store them) */
 			gp_stroke_convertcoords(p, &pt->x, &pts->x, NULL);
-			/* if axis locked, reproject to plane locked (only in 3d space) */
-			if (p->lock_axis > GP_LOCKAXIS_NONE) {
-				gp_reproject_toplane(p, gps);
-			}
+			/* reproject to plane (only in 3d space) */
+			gp_reproject_toplane(p, gps);
 			/* if parented change position relative to parent object */
-			if (gpl->parent != NULL) {
-				gp_apply_parent_point(gpl, pts);
-			}
+			gp_apply_parent_point(depsgraph, obact, gpd, gpl, pts);
 			/* copy pressure and time */
 			pts->pressure = pt->pressure;
 			pts->strength = pt->strength;
 			pts->time = pt->time;
+			pts->uv_fac = pt->uv_fac;
+			pts->uv_rot = pt->uv_rot;
+
+			dvert->totweight = 0;
+			dvert->dw = NULL;
+
 			/* force fill recalc */
 			gps->flag |= GP_STROKE_RECALC_CACHES;
+			/* drawing batch cache is dirty now */
+			gp_update_cache(p->gpd);
 		}
 
 		/* increment counters */
-		if (gpd->sbuffer_size == 0)
-			gpd->sbuffer_size++;
+		if (gpd->runtime.sbuffer_size == 0)
+			gpd->runtime.sbuffer_size++;
+
+		/* tag depsgraph to update object */
+		DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
 
 		return GP_STROKEADD_NORMAL;
 	}
@@ -690,9 +816,9 @@ static short gp_stroke_addpoint(
 static void gp_stroke_simplify(tGPsdata *p)
 {
 	bGPdata *gpd = p->gpd;
-	tGPspoint *old_points = (tGPspoint *)gpd->sbuffer;
-	short num_points = gpd->sbuffer_size;
-	short flag = gpd->sbuffer_sflag;
+	tGPspoint *old_points = (tGPspoint *)gpd->runtime.sbuffer;
+	short num_points = gpd->runtime.sbuffer_size;
+	short flag = gpd->runtime.sbuffer_sflag;
 	short i, j;
 
 	/* only simplify if simplification is enabled, and we're not doing a straight line */
@@ -707,9 +833,9 @@ static void gp_stroke_simplify(tGPsdata *p)
 	 *	- firstly set sbuffer to NULL, so a new one is allocated
 	 *	- secondly, reset flag after, as it gets cleared auto
 	 */
-	gpd->sbuffer = NULL;
+	gpd->runtime.sbuffer = NULL;
 	gp_session_validatebuffer(p);
-	gpd->sbuffer_sflag = flag;
+	gpd->runtime.sbuffer_sflag = flag;
 
 /* macro used in loop to get position of new point
  *	- used due to the mixture of datatypes in use here
@@ -766,8 +892,11 @@ static void gp_stroke_newfrombuffer(tGPsdata *p)
 	bGPDstroke *gps;
 	bGPDspoint *pt;
 	tGPspoint *ptc;
-	bGPDbrush *brush = p->brush;
+	MDeformVert *dvert;
+	Brush *brush = p->brush;
 	ToolSettings *ts = p->scene->toolsettings;
+	Depsgraph *depsgraph = p->depsgraph;
+	Object *obact = (Object *)p->ownerPtr.data;
 
 	int i, totelem;
 	/* since strokes are so fine, when using their depth we need a margin otherwise they might get missed */
@@ -777,14 +906,14 @@ static void gp_stroke_newfrombuffer(tGPsdata *p)
 	 *	- drawing straight-lines only requires the endpoints
 	 */
 	if (p->paintmode == GP_PAINTMODE_DRAW_STRAIGHT)
-		totelem = (gpd->sbuffer_size >= 2) ? 2 : gpd->sbuffer_size;
+		totelem = (gpd->runtime.sbuffer_size >= 2) ? 2 : gpd->runtime.sbuffer_size;
 	else
-		totelem = gpd->sbuffer_size;
+		totelem = gpd->runtime.sbuffer_size;
 
 	/* exit with error if no valid points from this stroke */
 	if (totelem == 0) {
 		if (G.debug & G_DEBUG)
-			printf("Error: No valid points in stroke buffer to convert (tot=%d)\n", gpd->sbuffer_size);
+			printf("Error: No valid points in stroke buffer to convert (tot=%d)\n", gpd->runtime.sbuffer_size);
 		return;
 	}
 
@@ -793,6 +922,9 @@ static void gp_stroke_newfrombuffer(tGPsdata *p)
 	 * interactive behavior
 	 */
 	if (p->paintmode == GP_PAINTMODE_DRAW_POLY) {
+		/* be sure to hide any lazy cursor */
+		ED_gpencil_toggle_brush_cursor(p->C, true, NULL);
+
 		if (gp_stroke_added_check(p)) {
 			return;
 		}
@@ -803,95 +935,94 @@ static void gp_stroke_newfrombuffer(tGPsdata *p)
 
 	/* copy appropriate settings for stroke */
 	gps->totpoints = totelem;
-	gps->thickness = brush->thickness;
-	gps->flag = gpd->sbuffer_sflag;
+	gps->thickness = brush->size;
+	gps->flag = gpd->runtime.sbuffer_sflag;
 	gps->inittime = p->inittime;
 
 	/* enable recalculation flag by default (only used if hq fill) */
 	gps->flag |= GP_STROKE_RECALC_CACHES;
 
 	/* allocate enough memory for a continuous array for storage points */
-	int sublevel = brush->sublevel;
-	int new_totpoints = gps->totpoints;
+	const int subdivide = brush->gpencil_settings->draw_subdivide;
+
+	gps->points = MEM_callocN(sizeof(bGPDspoint) * gps->totpoints, "gp_stroke_points");
+	gps->dvert = MEM_callocN(sizeof(MDeformVert) * gps->totpoints, "gp_stroke_weights");
 
-	for (i = 0; i < sublevel; i++) {
-		new_totpoints += new_totpoints - 1;
-	}
-	gps->points = MEM_callocN(sizeof(bGPDspoint) * new_totpoints, "gp_stroke_points");
 	/* initialize triangle memory to dummy data */
 	gps->triangles = MEM_callocN(sizeof(bGPDtriangle), "GP Stroke triangulation");
 	gps->flag |= GP_STROKE_RECALC_CACHES;
 	gps->tot_triangles = 0;
+	/* drawing batch cache is dirty now */
+	gp_update_cache(p->gpd);
 	/* set pointer to first non-initialized point */
 	pt = gps->points + (gps->totpoints - totelem);
+	dvert = gps->dvert + (gps->totpoints - totelem);
 
 	/* copy points from the buffer to the stroke */
 	if (p->paintmode == GP_PAINTMODE_DRAW_STRAIGHT) {
 		/* straight lines only -> only endpoints */
 		{
 			/* first point */
-			ptc = gpd->sbuffer;
+			ptc = gpd->runtime.sbuffer;
 
 			/* convert screen-coordinates to appropriate coordinates (and store them) */
 			gp_stroke_convertcoords(p, &ptc->x, &pt->x, NULL);
-			/* if axis locked, reproject to plane locked (only in 3d space) */
-			if (p->lock_axis > GP_LOCKAXIS_NONE) {
-				gp_reproject_toplane(p, gps);
-			}
-			/* if parented change position relative to parent object */
-			if (gpl->parent != NULL) {
-				gp_apply_parent_point(gpl, pt);
-			}
 			/* copy pressure and time */
 			pt->pressure = ptc->pressure;
 			pt->strength = ptc->strength;
 			CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
 			pt->time = ptc->time;
 
+			dvert->totweight = 0;
+			dvert->dw = NULL;
+
 			pt++;
+			dvert++;
 		}
 
 		if (totelem == 2) {
 			/* last point if applicable */
-			ptc = ((tGPspoint *)gpd->sbuffer) + (gpd->sbuffer_size - 1);
+			ptc = ((tGPspoint *)gpd->runtime.sbuffer) + (gpd->runtime.sbuffer_size - 1);
 
 			/* convert screen-coordinates to appropriate coordinates (and store them) */
 			gp_stroke_convertcoords(p, &ptc->x, &pt->x, NULL);
-			/* if axis locked, reproject to plane locked (only in 3d space) */
-			if (p->lock_axis > GP_LOCKAXIS_NONE) {
-				gp_reproject_toplane(p, gps);
-			}
-			/* if parented change position relative to parent object */
-			if (gpl->parent != NULL) {
-				gp_apply_parent_point(gpl, pt);
-			}
-
 			/* copy pressure and time */
 			pt->pressure = ptc->pressure;
 			pt->strength = ptc->strength;
 			CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
 			pt->time = ptc->time;
+
+			dvert->totweight = 0;
+			dvert->dw = NULL;
+		}
+
+		/* reproject to plane (only in 3d space) */
+		gp_reproject_toplane(p, gps);
+		pt = gps->points;
+		for (i = 0; i < gps->totpoints; i++, pt++) {
+			/* if parented change position relative to parent object */
+			gp_apply_parent_point(depsgraph, obact, gpd, gpl, pt);
 		}
 	}
 	else if (p->paintmode == GP_PAINTMODE_DRAW_POLY) {
 		/* first point */
-		ptc = gpd->sbuffer;
+		ptc = gpd->runtime.sbuffer;
 
 		/* convert screen-coordinates to appropriate coordinates (and store them) */
 		gp_stroke_convertcoords(p, &ptc->x, &pt->x, NULL);
-		/* if axis locked, reproject to plane locked (only in 3d space) */
-		if (p->lock_axis > GP_LOCKAXIS_NONE) {
-			gp_reproject_toplane(p, gps);
-		}
+		/* reproject to plane (only in 3d space) */
+		gp_reproject_toplane(p, gps);
 		/* if parented change position relative to parent object */
-		if (gpl->parent != NULL) {
-			gp_apply_parent_point(gpl, pt);
-		}
+		gp_apply_parent_point(depsgraph, obact, gpd, gpl, pt);
 		/* copy pressure and time */
 		pt->pressure = ptc->pressure;
 		pt->strength = ptc->strength;
 		CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
 		pt->time = ptc->time;
+
+		dvert->totweight = 0;
+		dvert->dw = NULL;
+
 	}
 	else {
 		float *depth_arr = NULL;
@@ -902,9 +1033,9 @@ static void gp_stroke_newfrombuffer(tGPsdata *p)
 			int interp_depth = 0;
 			int found_depth = 0;
 
-			depth_arr = MEM_mallocN(sizeof(float) * gpd->sbuffer_size, "depth_points");
+			depth_arr = MEM_mallocN(sizeof(float) * gpd->runtime.sbuffer_size, "depth_points");
 
-			for (i = 0, ptc = gpd->sbuffer; i < gpd->sbuffer_size; i++, ptc++, pt++) {
+			for (i = 0, ptc = gpd->runtime.sbuffer; i < gpd->runtime.sbuffer_size; i++, ptc++, pt++) {
 				copy_v2_v2_int(mval, &ptc->x);
 
 				if ((ED_view3d_autodist_depth(p->ar, mval, depth_margin, depth_arr + i) == 0) &&
@@ -921,7 +1052,7 @@ static void gp_stroke_newfrombuffer(tGPsdata *p)
 
 			if (found_depth == false) {
 				/* eeh... not much we can do.. :/, ignore depth in this case, use the 3D cursor */
-				for (i = gpd->sbuffer_size - 1; i >= 0; i--)
+				for (i = gpd->runtime.sbuffer_size - 1; i >= 0; i--)
 					depth_arr[i] = 0.9999f;
 			}
 			else {
@@ -930,13 +1061,13 @@ static void gp_stroke_newfrombuffer(tGPsdata *p)
 					int first_valid = 0;
 					int last_valid = 0;
 
-					for (i = 0; i < gpd->sbuffer_size; i++) {
+					for (i = 0; i < gpd->runtime.sbuffer_size; i++) {
 						if (depth_arr[i] != FLT_MAX)
 							break;
 					}
 					first_valid = i;
 
-					for (i = gpd->sbuffer_size - 1; i >= 0; i--) {
+					for (i = gpd->runtime.sbuffer_size - 1; i >= 0; i--) {
 						if (depth_arr[i] != FLT_MAX)
 							break;
 					}
@@ -950,16 +1081,15 @@ static void gp_stroke_newfrombuffer(tGPsdata *p)
 				}
 
 				if (interp_depth) {
-					interp_sparse_array(depth_arr, gpd->sbuffer_size, FLT_MAX);
+					interp_sparse_array(depth_arr, gpd->runtime.sbuffer_size, FLT_MAX);
 				}
 			}
 		}
 
-
 		pt = gps->points;
 
 		/* convert all points (normal behavior) */
-		for (i = 0, ptc = gpd->sbuffer; i < gpd->sbuffer_size && ptc; i++, ptc++, pt++) {
+		for (i = 0, ptc = gpd->runtime.sbuffer; i < gpd->runtime.sbuffer_size && ptc; i++, ptc++, pt++) {
 			/* convert screen-coordinates to appropriate coordinates (and store them) */
 			gp_stroke_convertcoords(p, &ptc->x, &pt->x, depth_arr ? depth_arr + i : NULL);
 
@@ -968,20 +1098,18 @@ static void gp_stroke_newfrombuffer(tGPsdata *p)
 			pt->strength = ptc->strength;
 			CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
 			pt->time = ptc->time;
+			pt->uv_fac = ptc->uv_fac;
+			pt->uv_rot = ptc->uv_rot;
 		}
 
-		/* subdivide the stroke */
-		if (sublevel > 0) {
-			int totpoints = gps->totpoints;
-			for (i = 0; i < sublevel; i++) {
-				/* we're adding one new point between each pair of verts on each step */
-				totpoints += totpoints - 1;
-
-				gp_subdivide_stroke(gps, totpoints);
-			}
+		/* subdivide and smooth the stroke */
+		if ((brush->gpencil_settings->flag & GP_BRUSH_GROUP_SETTINGS) && (subdivide > 0)) {
+			gp_subdivide_stroke(gps, subdivide);
 		}
 		/* apply randomness to stroke */
-		if (brush->draw_random_sub > 0.0f) {
+		if ((brush->gpencil_settings->flag & GP_BRUSH_GROUP_RANDOM) &&
+		    (brush->gpencil_settings->draw_random_sub > 0.0f))
+		{
 			gp_randomize_stroke(gps, brush, p->rng);
 		}
 
@@ -989,34 +1117,43 @@ static void gp_stroke_newfrombuffer(tGPsdata *p)
 		 * for each iteration, the factor is reduced to get a better smoothing without changing too much
 		 * the original stroke
 		 */
-		if (brush->draw_smoothfac > 0.0f) {
+		if ((brush->gpencil_settings->flag & GP_BRUSH_GROUP_SETTINGS) &&
+		    (brush->gpencil_settings->draw_smoothfac > 0.0f))
+		{
 			float reduce = 0.0f;
-			for (int r = 0; r < brush->draw_smoothlvl; ++r) {
+			for (int r = 0; r < brush->gpencil_settings->draw_smoothlvl; r++) {
 				for (i = 0; i < gps->totpoints; i++) {
-					/* NOTE: No pressure smoothing, or else we get annoying thickness changes while drawing... */
-					gp_smooth_stroke(gps, i, brush->draw_smoothfac - reduce, false);
+					BKE_gpencil_smooth_stroke(gps, i, brush->gpencil_settings->draw_smoothfac - reduce);
+					BKE_gpencil_smooth_stroke_strength(gps, i, brush->gpencil_settings->draw_smoothfac);
 				}
 				reduce += 0.25f;  // reduce the factor
 			}
 		}
-
-		/* if axis locked, reproject to plane locked (only in 3d space) */
-		if (p->lock_axis > GP_LOCKAXIS_NONE) {
-			gp_reproject_toplane(p, gps);
-		}
-		/* if parented change position relative to parent object */
-		if (gpl->parent != NULL) {
-			gp_apply_parent(gpl, gps);
+		/* smooth thickness */
+		if ((brush->gpencil_settings->flag & GP_BRUSH_GROUP_SETTINGS) &&
+		    (brush->gpencil_settings->thick_smoothfac > 0.0f))
+		{
+			for (int r = 0; r < brush->gpencil_settings->thick_smoothlvl * 2; r++) {
+				for (i = 0; i < gps->totpoints; i++) {
+					BKE_gpencil_smooth_stroke_thickness(gps, i, brush->gpencil_settings->thick_smoothfac);
+				}
+			}
 		}
 
+		/* reproject to plane (only in 3d space) */
+		gp_reproject_toplane(p, gps);
+		/* change position relative to parent object */
+		gp_apply_parent(depsgraph, obact, gpd, gpl, gps);
+
 		if (depth_arr)
 			MEM_freeN(depth_arr);
 	}
-	/* Save palette color */
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(p->gpd);
-	bGPDpalettecolor *palcolor = BKE_gpencil_palettecolor_getactive(palette);
-	gps->palcolor = palcolor;
-	BLI_strncpy(gps->colorname, palcolor->info, sizeof(gps->colorname));
+
+	/* Save material index */
+	gps->mat_nr = BKE_gpencil_get_material_index(p->ob, p->material) - 1;
+
+	/* calculate UVs along the stroke */
+	ED_gpencil_calc_stroke_uv(obact, gps);
 
 	/* add stroke to frame, usually on tail of the listbase, but if on back is enabled the stroke is added on listbase head
 	 * because the drawing order is inverse and the head stroke is the first to draw. This is very useful for artist
@@ -1047,6 +1184,8 @@ static float view3d_point_depth(const RegionView3D *rv3d, const float co[3])
 /* only erase stroke points that are visible */
 static bool gp_stroke_eraser_is_occluded(tGPsdata *p, const bGPDspoint *pt, const int x, const int y)
 {
+	Object *obact = (Object *)p->ownerPtr.data;
+
 	if ((p->sa->spacetype == SPACE_VIEW3D) &&
 	    (p->flags & GP_PAINTFLAG_V3D_ERASER_DEPTH))
 	{
@@ -1059,7 +1198,7 @@ static bool gp_stroke_eraser_is_occluded(tGPsdata *p, const bGPDspoint *pt, cons
 
 		float diff_mat[4][4];
 		/* calculate difference matrix if parent object */
-		ED_gpencil_parent_location(gpl, diff_mat);
+		ED_gpencil_parent_location(p->depsgraph, obact, p->gpd, gpl, diff_mat);
 
 		if (ED_view3d_autodist_simple(p->ar, mval, mval_3d, 0, NULL)) {
 			const float depth_mval = view3d_point_depth(rv3d, mval_3d);
@@ -1092,6 +1231,24 @@ static float gp_stroke_eraser_calc_influence(tGPsdata *p, const int mval[2], con
 	return fac;
 }
 
+/* helper to free a stroke */
+static void gp_free_stroke(bGPdata *gpd, bGPDframe *gpf, bGPDstroke *gps)
+{
+	if (gps->points) {
+		MEM_freeN(gps->points);
+	}
+
+	if (gps->dvert) {
+		BKE_gpencil_free_stroke_weights(gps);
+		MEM_freeN(gps->dvert);
+	}
+
+	if (gps->triangles)
+		MEM_freeN(gps->triangles);
+	BLI_freelinkN(&gpf->strokes, gps);
+	gp_update_cache(gpd);
+}
+
 /* eraser tool - evaluation per stroke */
 /* TODO: this could really do with some optimization (KD-Tree/BVH?) */
 static void gp_stroke_eraser_dostroke(tGPsdata *p,
@@ -1099,46 +1256,58 @@ static void gp_stroke_eraser_dostroke(tGPsdata *p,
                                       const int mval[2], const int mvalo[2],
                                       const int radius, const rcti *rect)
 {
+	Depsgraph *depsgraph = p->depsgraph;
+	Object *obact = (Object *)p->ownerPtr.data;
+	Brush *eraser = p->eraser;
 	bGPDspoint *pt1, *pt2;
 	int pc1[2] = {0};
 	int pc2[2] = {0};
 	int i;
 	float diff_mat[4][4];
 
-	/* calculate difference matrix if parent object */
-	if (gpl->parent != NULL) {
-		ED_gpencil_parent_location(gpl, diff_mat);
-	}
+	/* calculate difference matrix */
+	ED_gpencil_parent_location(depsgraph, obact, p->gpd, gpl, diff_mat);
 
 	if (gps->totpoints == 0) {
 		/* just free stroke */
-		if (gps->points)
-			MEM_freeN(gps->points);
-		if (gps->triangles)
-			MEM_freeN(gps->triangles);
-		BLI_freelinkN(&gpf->strokes, gps);
+		gp_free_stroke(p->gpd, gpf, gps);
 	}
 	else if (gps->totpoints == 1) {
 		/* only process if it hasn't been masked out... */
 		if (!(p->flags & GP_PAINTFLAG_SELECTMASK) || (gps->points->flag & GP_SPOINT_SELECT)) {
-			if (gpl->parent == NULL) {
-				gp_point_to_xy(&p->gsc, gps, gps->points, &pc1[0], &pc1[1]);
-			}
-			else {
-				bGPDspoint pt_temp;
-				gp_point_to_parent_space(gps->points, diff_mat, &pt_temp);
-				gp_point_to_xy(&p->gsc, gps, &pt_temp, &pc1[0], &pc1[1]);
+			bGPDspoint pt_temp;
+			gp_point_to_parent_space(gps->points, diff_mat, &pt_temp);
+			gp_point_to_xy(&p->gsc, gps, &pt_temp, &pc1[0], &pc1[1]);
+			/* do boundbox check first */
+			if ((!ELEM(V2D_IS_CLIPPED, pc1[0], pc1[1])) && BLI_rcti_isect_pt(rect, pc1[0], pc1[1])) {
+				/* only check if point is inside */
+				if (len_v2v2_int(mval, pc1) <= radius) {
+					/* free stroke */
+					gp_free_stroke(p->gpd, gpf, gps);
+				}
 			}
+		}
+	}
+	else if ((p->flags & GP_PAINTFLAG_STROKE_ERASER) || (eraser->gpencil_settings->eraser_mode == GP_BRUSH_ERASER_STROKE)) {
+		for (i = 0; (i + 1) < gps->totpoints; i++) {
+
+			/* only process if it hasn't been masked out... */
+			if ((p->flags & GP_PAINTFLAG_SELECTMASK) && !(gps->points->flag & GP_SPOINT_SELECT))
+				continue;
+
+			/* get points to work with */
+			pt1 = gps->points + i;
+			bGPDspoint npt;
+			gp_point_to_parent_space(pt1, diff_mat, &npt);
+			gp_point_to_xy(&p->gsc, gps, &npt, &pc1[0], &pc1[1]);
+
 			/* do boundbox check first */
 			if ((!ELEM(V2D_IS_CLIPPED, pc1[0], pc1[1])) && BLI_rcti_isect_pt(rect, pc1[0], pc1[1])) {
 				/* only check if point is inside */
 				if (len_v2v2_int(mval, pc1) <= radius) {
 					/* free stroke */
-					// XXX: pressure sensitive eraser should apply here too?
-					MEM_freeN(gps->points);
-					if (gps->triangles)
-						MEM_freeN(gps->triangles);
-					BLI_freelinkN(&gpf->strokes, gps);
+					gp_free_stroke(p->gpd, gpf, gps);
+					return;
 				}
 			}
 		}
@@ -1181,18 +1350,12 @@ static void gp_stroke_eraser_dostroke(tGPsdata *p,
 			if ((p->flags & GP_PAINTFLAG_SELECTMASK) && !(gps->points->flag & GP_SPOINT_SELECT))
 				continue;
 
-			if (gpl->parent == NULL) {
-				gp_point_to_xy(&p->gsc, gps, pt1, &pc1[0], &pc1[1]);
-				gp_point_to_xy(&p->gsc, gps, pt2, &pc2[0], &pc2[1]);
-			}
-			else {
-				bGPDspoint npt;
-				gp_point_to_parent_space(pt1, diff_mat, &npt);
-				gp_point_to_xy(&p->gsc, gps, &npt, &pc1[0], &pc1[1]);
+			bGPDspoint npt;
+			gp_point_to_parent_space(pt1, diff_mat, &npt);
+			gp_point_to_xy(&p->gsc, gps, &npt, &pc1[0], &pc1[1]);
 
-				gp_point_to_parent_space(pt2, diff_mat, &npt);
-				gp_point_to_xy(&p->gsc, gps, &npt, &pc2[0], &pc2[1]);
-			}
+			gp_point_to_parent_space(pt2, diff_mat, &npt);
+			gp_point_to_xy(&p->gsc, gps, &npt, &pc2[0], &pc2[1]);
 
 			/* Check that point segment of the boundbox of the eraser stroke */
 			if (((!ELEM(V2D_IS_CLIPPED, pc1[0], pc1[1])) && BLI_rcti_isect_pt(rect, pc1[0], pc1[1])) ||
@@ -1215,11 +1378,15 @@ static void gp_stroke_eraser_dostroke(tGPsdata *p,
 						pt2->pressure -= gp_stroke_eraser_calc_influence(p, mval, radius, pc2) * strength / 2.0f;
 
 						/* 2) Tag any point with overly low influence for removal in the next pass */
-						if (pt1->pressure < cull_thresh) {
+						if ((pt1->pressure < cull_thresh) || (p->flags & GP_PAINTFLAG_HARD_ERASER) ||
+						    (eraser->gpencil_settings->eraser_mode == GP_BRUSH_ERASER_HARD))
+						{
 							pt1->flag |= GP_SPOINT_TAG;
 							do_cull = true;
 						}
-						if (pt2->pressure < cull_thresh) {
+						if ((pt2->pressure < cull_thresh) || (p->flags & GP_PAINTFLAG_HARD_ERASER) ||
+						    (eraser->gpencil_settings->eraser_mode == GP_BRUSH_ERASER_HARD))
+						{
 							pt2->flag |= GP_SPOINT_TAG;
 							do_cull = true;
 						}
@@ -1230,8 +1397,9 @@ static void gp_stroke_eraser_dostroke(tGPsdata *p,
 
 		/* Second Pass: Remove any points that are tagged */
 		if (do_cull) {
-			gp_stroke_delete_tagged_points(gpf, gps, gps->next, GP_SPOINT_TAG);
+			gp_stroke_delete_tagged_points(gpf, gps, gps->next, GP_SPOINT_TAG, false);
 		}
+		gp_update_cache(p->gpd);
 	}
 }
 
@@ -1275,7 +1443,7 @@ static void gp_stroke_doeraser(tGPsdata *p)
 		for (gps = gpf->strokes.first; gps; gps = gpn) {
 			gpn = gps->next;
 			/* check if the color is editable */
-			if (ED_gpencil_stroke_color_use(gpl, gps) == false) {
+			if (ED_gpencil_stroke_color_use(p->ob, gpl, gps) == false) {
 				continue;
 			}
 			/* Not all strokes in the datablock may be valid in the current editor/context
@@ -1295,107 +1463,178 @@ static void gp_stroke_doeraser(tGPsdata *p)
 static void gp_session_validatebuffer(tGPsdata *p)
 {
 	bGPdata *gpd = p->gpd;
+	Brush *brush = p->brush;
 
 	/* clear memory of buffer (or allocate it if starting a new session) */
-	if (gpd->sbuffer) {
+	if (gpd->runtime.sbuffer) {
 		/* printf("\t\tGP - reset sbuffer\n"); */
-		memset(gpd->sbuffer, 0, sizeof(tGPspoint) * GP_STROKE_BUFFER_MAX);
+		memset(gpd->runtime.sbuffer, 0, sizeof(tGPspoint) * GP_STROKE_BUFFER_MAX);
 	}
 	else {
 		/* printf("\t\tGP - allocate sbuffer\n"); */
-		gpd->sbuffer = MEM_callocN(sizeof(tGPspoint) * GP_STROKE_BUFFER_MAX, "gp_session_strokebuffer");
+		gpd->runtime.sbuffer = MEM_callocN(sizeof(tGPspoint) * GP_STROKE_BUFFER_MAX, "gp_session_strokebuffer");
 	}
 
 	/* reset indices */
-	gpd->sbuffer_size = 0;
+	gpd->runtime.sbuffer_size = 0;
 
 	/* reset flags */
-	gpd->sbuffer_sflag = 0;
+	gpd->runtime.sbuffer_sflag = 0;
 
 	/* reset inittime */
 	p->inittime = 0.0;
+
+	/* reset lazy */
+	if (brush) {
+		brush->gpencil_settings->flag &= ~GP_BRUSH_STABILIZE_MOUSE_TEMP;
+	}
 }
 
-/* create a new palette color */
-static bGPDpalettecolor *gp_create_new_color(bGPDpalette *palette)
+/* helper to get default eraser and create one if no eraser brush */
+static Brush *gp_get_default_eraser(Main *bmain, ToolSettings *ts)
 {
-	bGPDpalettecolor *palcolor;
+	Brush *brush_dft = NULL;
+	Paint *paint = BKE_brush_get_gpencil_paint(ts);
+	Brush *brush_old = paint->brush;
+	for (Brush *brush = bmain->brush.first; brush; brush = brush->id.next) {
+		if ((brush->ob_mode == OB_MODE_GPENCIL_PAINT) &&
+		    (brush->gpencil_settings->brush_type == GP_BRUSH_TYPE_ERASE))
+		{
+			/* save first eraser to use later if no default */
+			if (brush_dft == NULL) {
+				brush_dft = brush;
+			}
+			/* found default */
+			if (brush->gpencil_settings->flag & GP_BRUSH_DEFAULT_ERASER) {
+				return brush;
+			}
+		}
+	}
+	/* if no default, but exist eraser brush, return this and set as default */
+	if (brush_dft) {
+		brush_dft->gpencil_settings->flag |= GP_BRUSH_DEFAULT_ERASER;
+		return brush_dft;
+	}
+	/* create a new soft eraser brush */
+	else {
+		brush_dft = BKE_brush_add_gpencil(bmain, ts, "Soft Eraser");
+		brush_dft->size = 30.0f;
+		brush_dft->gpencil_settings->flag |= (GP_BRUSH_ENABLE_CURSOR | GP_BRUSH_DEFAULT_ERASER);
+		brush_dft->gpencil_settings->icon_id = GP_BRUSH_ICON_ERASE_SOFT;
+		brush_dft->gpencil_settings->brush_type = GP_BRUSH_TYPE_ERASE;
+		brush_dft->gpencil_settings->eraser_mode = GP_BRUSH_ERASER_SOFT;
 
-	palcolor = BKE_gpencil_palettecolor_addnew(palette, DATA_("Color"), true);
+		/* reset current brush */
+		BKE_paint_brush_set(paint, brush_old);
 
-	return palcolor;
+		return brush_dft;
+	}
 }
 
 /* initialize a drawing brush */
-static void gp_init_drawing_brush(ToolSettings *ts, tGPsdata *p)
+static void gp_init_drawing_brush(bContext *C, tGPsdata *p)
 {
-	bGPDbrush *brush;
+	Brush *brush;
+	Scene *scene = CTX_data_scene(C);
+	ToolSettings *ts = CTX_data_tool_settings(C);
+
+	Paint *paint = BKE_brush_get_gpencil_paint(ts);
 
 	/* if not exist, create a new one */
-	if (BLI_listbase_is_empty(&ts->gp_brushes)) {
+	if (paint->brush == NULL) {
 		/* create new brushes */
-		BKE_gpencil_brush_init_presets(ts);
-		brush = BKE_gpencil_brush_getactive(ts);
+		BKE_brush_gpencil_presets(C);
+		brush = BKE_brush_getactive_gpencil(ts);
 	}
 	else {
 		/* Use the current */
-		brush = BKE_gpencil_brush_getactive(ts);
+		brush = BKE_brush_getactive_gpencil(ts);
 	}
 	/* be sure curves are initializated */
-	curvemapping_initialize(brush->cur_sensitivity);
-	curvemapping_initialize(brush->cur_strength);
-	curvemapping_initialize(brush->cur_jitter);
+	curvemapping_initialize(brush->gpencil_settings->curve_sensitivity);
+	curvemapping_initialize(brush->gpencil_settings->curve_strength);
+	curvemapping_initialize(brush->gpencil_settings->curve_jitter);
 
 	/* asign to temp tGPsdata */
 	p->brush = brush;
+	if (brush->gpencil_settings->brush_type != GP_BRUSH_TYPE_ERASE) {
+		p->eraser = gp_get_default_eraser(p->bmain, ts);
+	}
+	else {
+		p->eraser = brush;
+	}
+	/* use radius of eraser */
+	p->radius = (short)p->eraser->size;
+
+	/* GPXX: Need this update to synchronize brush with draw manager.
+	* Maybe this update can be removed when the new tool system
+	* will be in place, but while, we need this to keep drawing working.
+	*
+	*/
+	DEG_id_tag_update(&scene->id, DEG_TAG_COPY_ON_WRITE);
 }
 
 
-/* initialize a paint palette brush and a default color if not exist */
-static void gp_init_palette(tGPsdata *p)
+/* initialize a paint brush and a default color if not exist */
+static void gp_init_colors(tGPsdata *p)
 {
-	bGPdata *gpd;
-	bGPDpalette *palette;
-	bGPDpalettecolor *palcolor;
+	bGPdata *gpd = p->gpd;
+	Brush *brush = p->brush;
 
-	gpd = p->gpd;
+	Material *ma = NULL;
+	MaterialGPencilStyle *gp_style = NULL;
+
+	/* use brush material */
+	ma = BKE_gpencil_get_material_from_brush(brush);
+
+	/* if no brush defaults, get material and color info
+	 * NOTE: Ensures that everything we need will exist...
+	 */
+	if ((ma == NULL) || (ma->gp_style == NULL)) {
+		BKE_gpencil_material_ensure(p->bmain, p->ob);
 
-	/* if not exist, create a new palette */
-	if (BLI_listbase_is_empty(&gpd->palettes)) {
-		/* create new palette */
-		palette = BKE_gpencil_palette_addnew(gpd, DATA_("GP_Palette"), true);
-		/* now create a default color */
-		palcolor = gp_create_new_color(palette);
+		/* assign always the first material to the brush */
+		p->material = give_current_material(p->ob, 1);
+		brush->gpencil_settings->material = p->material;
 	}
 	else {
-		/* Use the current palette and color */
-		palette = BKE_gpencil_palette_getactive(gpd);
-		/* the palette needs one color */
-		if (BLI_listbase_is_empty(&palette->colors)) {
-			palcolor = gp_create_new_color(palette);
-		}
-		else {
-			palcolor = BKE_gpencil_palettecolor_getactive(palette);
-		}
-		/* in some situations can be null, so use first */
-		if (palcolor == NULL) {
-			BKE_gpencil_palettecolor_setactive(palette, palette->colors.first);
-			palcolor = palette->colors.first;
-		}
+		p->material = ma;
 	}
 
-	/* asign to temp tGPsdata */
-	p->palettecolor = palcolor;
+	/* check if the material is already on object material slots and add it if missing */
+	if (BKE_gpencil_get_material_index(p->ob, p->material) == 0) {
+		BKE_object_material_slot_add(p->bmain, p->ob);
+		assign_material(p->bmain, p->ob, ma, p->ob->totcol, BKE_MAT_ASSIGN_USERPREF);
+	}
+
+	/* assign color information to temp tGPsdata */
+	gp_style = p->material->gp_style;
+	if (gp_style) {
+
+		/* set colors */
+		copy_v4_v4(gpd->runtime.scolor, gp_style->stroke_rgba);
+		copy_v4_v4(gpd->runtime.sfill, gp_style->fill_rgba);
+		/* add some alpha to make easy the filling without hide strokes */
+		if (gpd->runtime.sfill[3] > 0.8f) {
+			gpd->runtime.sfill[3] = 0.8f;
+		}
+
+		gpd->runtime.mode = (short)gp_style->mode;
+		gpd->runtime.bstroke_style = gp_style->stroke_style;
+		gpd->runtime.bfill_style = gp_style->fill_style;
+	}
 }
 
 /* (re)init new painting data */
-static bool gp_session_initdata(bContext *C, tGPsdata *p)
+static bool gp_session_initdata(bContext *C, wmOperator *op, tGPsdata *p)
 {
 	Main *bmain = CTX_data_main(C);
 	bGPdata **gpd_ptr = NULL;
 	ScrArea *curarea = CTX_wm_area(C);
 	ARegion *ar = CTX_wm_region(C);
 	ToolSettings *ts = CTX_data_tool_settings(C);
+	Object *obact = CTX_data_active_object(C);
+	View3D *v3d = curarea->spacedata.first;
 
 	/* make sure the active view (at the starting time) is a 3d-view */
 	if (curarea == NULL) {
@@ -1406,10 +1645,12 @@ static bool gp_session_initdata(bContext *C, tGPsdata *p)
 	}
 
 	/* pass on current scene and window */
+	p->C = C;
 	p->bmain = CTX_data_main(C);
 	p->scene = CTX_data_scene(C);
 	p->depsgraph = CTX_data_depsgraph(C);
 	p->win = CTX_wm_window(C);
+	p->disable_fill = RNA_boolean_get(op->ptr, "disable_fill");
 
 	unit_m4(p->imat);
 	unit_m4(p->mat);
@@ -1424,7 +1665,7 @@ static bool gp_session_initdata(bContext *C, tGPsdata *p)
 			/* set current area
 			 *	- must verify that region data is 3D-view (and not something else)
 			 */
-			/* CAUTION: If this is the "toolbar", then this will change on the first stroke */
+			 /* CAUTION: If this is the "toolbar", then this will change on the first stroke */
 			p->sa = curarea;
 			p->ar = ar;
 			p->align_flag = &ts->gpencil_v3d_align;
@@ -1435,92 +1676,19 @@ static bool gp_session_initdata(bContext *C, tGPsdata *p)
 					printf("Error: 3D-View active region doesn't have any region data, so cannot be drawable\n");
 				return 0;
 			}
-			break;
-		}
-		case SPACE_NODE:
-		{
-			/* SpaceNode *snode = curarea->spacedata.first; */
-
-			/* set current area */
-			p->sa = curarea;
-			p->ar = ar;
-			p->v2d = &ar->v2d;
-			p->align_flag = &ts->gpencil_v2d_align;
-			break;
-		}
-		case SPACE_SEQ:
-		{
-			SpaceSeq *sseq = curarea->spacedata.first;
-
-			/* set current area */
-			p->sa = curarea;
-			p->ar = ar;
-			p->v2d = &ar->v2d;
-			p->align_flag = &ts->gpencil_seq_align;
 
-			/* check that gpencil data is allowed to be drawn */
-			if (sseq->mainb == SEQ_DRAW_SEQUENCE) {
-				p->status = GP_STATUS_ERROR;
-				if (G.debug & G_DEBUG)
-					printf("Error: In active view (sequencer), active mode doesn't support Grease Pencil\n");
-				return 0;
+			/* if active object doesn't exist or isn't a GP Object, create one */
+			float *cur = ED_view3d_cursor3d_get(p->scene, v3d)->location;
+			if ((!obact) || (obact->type != OB_GPENCIL)) {
+				/* create new default object */
+				obact = ED_add_gpencil_object(C, p->scene, cur);
 			}
-			break;
-		}
-		case SPACE_IMAGE:
-		{
-			/* SpaceImage *sima = curarea->spacedata.first; */
+			/* assign object after all checks to be sure we have one active */
+			p->ob = obact;
 
-			/* set the current area */
-			p->sa = curarea;
-			p->ar = ar;
-			p->v2d = &ar->v2d;
-			p->align_flag = &ts->gpencil_ima_align;
 			break;
 		}
-		case SPACE_CLIP:
-		{
-			SpaceClip *sc = curarea->spacedata.first;
-			MovieClip *clip = ED_space_clip_get_clip(sc);
-
-			if (clip == NULL) {
-				p->status = GP_STATUS_ERROR;
-				return false;
-			}
-
-			/* set the current area */
-			p->sa = curarea;
-			p->ar = ar;
-			p->v2d = &ar->v2d;
-			p->align_flag = &ts->gpencil_v2d_align;
-
-			invert_m4_m4(p->imat, sc->unistabmat);
-
-			/* custom color for new layer */
-			p->custom_color[0] = 1.0f;
-			p->custom_color[1] = 0.0f;
-			p->custom_color[2] = 0.5f;
-			p->custom_color[3] = 0.9f;
-
-			if (sc->gpencil_src == SC_GPENCIL_SRC_TRACK) {
-				int framenr = ED_space_clip_get_clip_frame_number(sc);
-				MovieTrackingTrack *track = BKE_tracking_track_get_active(&clip->tracking);
-				MovieTrackingMarker *marker = track ? BKE_tracking_marker_get(track, framenr) : NULL;
-
-				if (marker) {
-					p->imat[3][0] -= marker->pos[0];
-					p->imat[3][1] -= marker->pos[1];
-				}
-				else {
-					p->status = GP_STATUS_ERROR;
-					return false;
-				}
-			}
 
-			invert_m4_m4(p->mat, p->imat);
-			copy_m4_m4(p->gsc.mat, p->mat);
-			break;
-		}
 		/* unsupported views */
 		default:
 		{
@@ -1533,7 +1701,7 @@ static bool gp_session_initdata(bContext *C, tGPsdata *p)
 
 	/* get gp-data */
 	gpd_ptr = ED_gpencil_data_get_pointers(C, &p->ownerPtr);
-	if (gpd_ptr == NULL) {
+	if ((gpd_ptr == NULL) || ED_gpencil_data_owner_is_annotation(&p->ownerPtr)) {
 		p->status = GP_STATUS_ERROR;
 		if (G.debug & G_DEBUG)
 			printf("Error: Current context doesn't allow for any Grease Pencil data\n");
@@ -1555,16 +1723,18 @@ static bool gp_session_initdata(bContext *C, tGPsdata *p)
 
 	/* clear out buffer (stored in gp-data), in case something contaminated it */
 	gp_session_validatebuffer(p);
+
 	/* set brush and create a new one if null */
-	gp_init_drawing_brush(ts, p);
-	/* set palette info and create a new one if null */
-	gp_init_palette(p);
-	/* set palette colors */
-	bGPDpalettecolor *palcolor = p->palettecolor;
-	bGPdata *pdata = p->gpd;
-	copy_v4_v4(pdata->scolor, palcolor->color);
-	copy_v4_v4(pdata->sfill, palcolor->fill);
-	pdata->sflag = palcolor->flag;
+	gp_init_drawing_brush(C, p);
+
+	/* setup active color */
+	if (curarea->spacetype == SPACE_VIEW3D) {
+		/* NOTE: This is only done for 3D view, as Materials aren't used for
+		 *       annotations in 2D editors
+		 */
+		gp_init_colors(p);
+	}
+
 	/* lock axis */
 	p->lock_axis = ts->gp_sculpt.lock_axis;
 
@@ -1572,20 +1742,24 @@ static bool gp_session_initdata(bContext *C, tGPsdata *p)
 }
 
 /* init new painting session */
-static tGPsdata *gp_session_initpaint(bContext *C)
+static tGPsdata *gp_session_initpaint(bContext *C, wmOperator *op)
 {
 	tGPsdata *p = NULL;
 
-	/* create new context data */
+	/* Create new context data */
 	p = MEM_callocN(sizeof(tGPsdata), "GPencil Drawing Data");
 
-	gp_session_initdata(C, p);
-
-	/* radius for eraser circle is defined in userprefs now */
-	/* NOTE: we do this here, so that if we exit immediately,
-	 *       erase size won't get lost
+	/* Try to initialise context data
+	 * WARNING: This may not always succeed (e.g. using GP in an annotation-only context)
 	 */
-	p->radius = U.gp_eraser;
+	if (gp_session_initdata(C, op, p) == 0) {
+		/* Invalid state - Exit
+		 * NOTE: It should be safe to just free the data, since failing context checks should
+		 * only happen when no data has been allocated.
+		 */
+		MEM_freeN(p);
+		return NULL;
+	}
 
 	/* Random generator, only init once. */
 	uint rng_seed = (uint)(PIL_check_seconds_timer_i() & UINT_MAX);
@@ -1606,15 +1780,15 @@ static void gp_session_cleanup(tGPsdata *p)
 		return;
 
 	/* free stroke buffer */
-	if (gpd->sbuffer) {
+	if (gpd->runtime.sbuffer) {
 		/* printf("\t\tGP - free sbuffer\n"); */
-		MEM_freeN(gpd->sbuffer);
-		gpd->sbuffer = NULL;
+		MEM_freeN(gpd->runtime.sbuffer);
+		gpd->runtime.sbuffer = NULL;
 	}
 
 	/* clear flags */
-	gpd->sbuffer_size = 0;
-	gpd->sbuffer_sflag = 0;
+	gpd->runtime.sbuffer_size = 0;
+	gpd->runtime.sbuffer_sflag = 0;
 	p->inittime = 0.0;
 }
 
@@ -1632,11 +1806,12 @@ static void gp_paint_initstroke(tGPsdata *p, eGPencil_PaintModes paintmode, Deps
 {
 	Scene *scene = p->scene;
 	ToolSettings *ts = scene->toolsettings;
+	int cfra_eval = (int)DEG_get_ctime(p->depsgraph);
 
 	/* get active layer (or add a new one if non-existent) */
 	p->gpl = BKE_gpencil_layer_getactive(p->gpd);
 	if (p->gpl == NULL) {
-		p->gpl = BKE_gpencil_layer_addnew(p->gpd, "GP_Layer", true);
+		p->gpl = BKE_gpencil_layer_addnew(p->gpd, DATA_("GP_Layer"), true);
 
 		if (p->custom_color[3])
 			copy_v3_v3(p->gpl->color, p->custom_color);
@@ -1670,7 +1845,7 @@ static void gp_paint_initstroke(tGPsdata *p, eGPencil_PaintModes paintmode, Deps
 			 *       -> If there are no strokes in that frame, don't add a new empty frame
 			 */
 			if (gpl->actframe && gpl->actframe->strokes.first) {
-				gpl->actframe = BKE_gpencil_layer_getframe(gpl, CFRA, GP_GETFRAME_ADD_COPY);
+				gpl->actframe = BKE_gpencil_layer_getframe(gpl, cfra_eval, GP_GETFRAME_ADD_COPY);
 				has_layer_to_erase = true;
 			}
 
@@ -1708,7 +1883,9 @@ static void gp_paint_initstroke(tGPsdata *p, eGPencil_PaintModes paintmode, Deps
 		else
 			add_frame_mode = GP_GETFRAME_ADD_NEW;
 
-		p->gpf = BKE_gpencil_layer_getframe(p->gpl, CFRA, add_frame_mode);
+		p->gpf = BKE_gpencil_layer_getframe(p->gpl, cfra_eval, add_frame_mode);
+		/* set as dirty draw manager cache */
+		gp_update_cache(p->gpd);
 
 		if (p->gpf == NULL) {
 			p->status = GP_STATUS_ERROR;
@@ -1724,7 +1901,7 @@ static void gp_paint_initstroke(tGPsdata *p, eGPencil_PaintModes paintmode, Deps
 	/* set 'eraser' for this stroke if using eraser */
 	p->paintmode = paintmode;
 	if (p->paintmode == GP_PAINTMODE_ERASER) {
-		p->gpd->sbuffer_sflag |= GP_STROKE_ERASER;
+		p->gpd->runtime.sbuffer_sflag |= GP_STROKE_ERASER;
 
 		/* check if we should respect depth while erasing */
 		if (p->sa->spacetype == SPACE_VIEW3D) {
@@ -1735,7 +1912,7 @@ static void gp_paint_initstroke(tGPsdata *p, eGPencil_PaintModes paintmode, Deps
 	}
 	else {
 		/* disable eraser flags - so that we can switch modes during a session */
-		p->gpd->sbuffer_sflag &= ~GP_STROKE_ERASER;
+		p->gpd->runtime.sbuffer_sflag &= ~GP_STROKE_ERASER;
 
 		if (p->sa->spacetype == SPACE_VIEW3D) {
 			if (p->gpl->flag & GP_LAYER_NO_XRAY) {
@@ -1744,10 +1921,16 @@ static void gp_paint_initstroke(tGPsdata *p, eGPencil_PaintModes paintmode, Deps
 		}
 	}
 
+	/* set special fill stroke mode */
+	if (p->disable_fill == true) {
+		p->gpd->runtime.sbuffer_sflag |= GP_STROKE_NOFILL;
+		/* replace stroke color with fill color */
+		copy_v4_v4(p->gpd->runtime.scolor, p->gpd->runtime.sfill);
+	}
+
 	/* set 'initial run' flag, which is only used to denote when a new stroke is starting */
 	p->flags |= GP_PAINTFLAG_FIRSTRUN;
 
-
 	/* when drawing in the camera view, in 2D space, set the subrect */
 	p->subrect = NULL;
 	if ((*p->align_flag & GP_PROJECT_VIEWSPACE) == 0) {
@@ -1782,41 +1965,7 @@ static void gp_paint_initstroke(tGPsdata *p, eGPencil_PaintModes paintmode, Deps
 		switch (p->sa->spacetype) {
 			case SPACE_VIEW3D:
 			{
-				p->gpd->sbuffer_sflag |= GP_STROKE_3DSPACE;
-				break;
-			}
-			case SPACE_NODE:
-			{
-				p->gpd->sbuffer_sflag |= GP_STROKE_2DSPACE;
-				break;
-			}
-			case SPACE_SEQ:
-			{
-				p->gpd->sbuffer_sflag |= GP_STROKE_2DSPACE;
-				break;
-			}
-			case SPACE_IMAGE:
-			{
-				SpaceImage *sima = (SpaceImage *)p->sa->spacedata.first;
-
-				/* only set these flags if the image editor doesn't have an image active,
-				 * otherwise user will be confused by strokes not appearing after they're drawn
-				 *
-				 * Admittedly, this is a bit hacky, but it works much nicer from an ergonomic standpoint!
-				 */
-				if (ELEM(NULL, sima, sima->image)) {
-					/* make strokes be drawn in screen space */
-					p->gpd->sbuffer_sflag &= ~GP_STROKE_2DSPACE;
-					*(p->align_flag) &= ~GP_PROJECT_VIEWSPACE;
-				}
-				else {
-					p->gpd->sbuffer_sflag |= GP_STROKE_2DSPACE;
-				}
-				break;
-			}
-			case SPACE_CLIP:
-			{
-				p->gpd->sbuffer_sflag |= GP_STROKE_2DSPACE;
+				p->gpd->runtime.sbuffer_sflag |= GP_STROKE_3DSPACE;
 				break;
 			}
 		}
@@ -1839,7 +1988,7 @@ static void gp_paint_strokeend(tGPsdata *p)
 	}
 
 	/* check if doing eraser or not */
-	if ((p->gpd->sbuffer_sflag & GP_STROKE_ERASER) == 0) {
+	if ((p->gpd->runtime.sbuffer_sflag & GP_STROKE_ERASER) == 0) {
 		/* simplify stroke before transferring? */
 		gp_stroke_simplify(p);
 
@@ -1875,8 +2024,8 @@ static void gpencil_draw_eraser(bContext *UNUSED(C), int x, int y, void *p_ptr)
 	tGPsdata *p = (tGPsdata *)p_ptr;
 
 	if (p->paintmode == GP_PAINTMODE_ERASER) {
-		Gwn_VertFormat *format = immVertexFormat();
-		const uint shdr_pos = GWN_vertformat_attr_add(format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT);
+		GPUVertFormat *format = immVertexFormat();
+		const uint shdr_pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
 		immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
 
 		GPU_line_smooth(true);
@@ -1920,10 +2069,12 @@ static void gpencil_draw_toggle_eraser_cursor(bContext *C, tGPsdata *p, short en
 		p->erasercursor = NULL;
 	}
 	else if (enable && !p->erasercursor) {
+		ED_gpencil_toggle_brush_cursor(p->C, false, NULL);
 		/* enable cursor */
-		p->erasercursor = WM_paint_cursor_activate(CTX_wm_manager(C),
-		                                           NULL, /* XXX */
-		                                           gpencil_draw_eraser, p);
+		p->erasercursor = WM_paint_cursor_activate(
+		        CTX_wm_manager(C),
+		        NULL, /* XXX */
+		        gpencil_draw_eraser, p);
 	}
 }
 
@@ -1944,12 +2095,6 @@ static void gpencil_draw_exit(bContext *C, wmOperator *op)
 {
 	tGPsdata *p = op->customdata;
 
-	/* clear undo stack */
-	gpencil_undo_finish();
-
-	/* restore cursor to indicate end of drawing */
-	WM_cursor_modal_restore(CTX_wm_window(C));
-
 	/* don't assume that operator data exists at all */
 	if (p) {
 		/* check size of buffer before cleanup, to determine if anything happened here */
@@ -1962,12 +2107,38 @@ static void gpencil_draw_exit(bContext *C, wmOperator *op)
 		 * NOTE: Do this even when not in eraser mode, as eraser may
 		 *       have been toggled at some point.
 		 */
-		U.gp_eraser = p->radius;
+		if (p->eraser) {
+			p->eraser->size = p->radius;
+		}
+
+		/* restore cursor to indicate end of drawing */
+		if (p->sa->spacetype != SPACE_VIEW3D) {
+			WM_cursor_modal_restore(CTX_wm_window(C));
+		}
+		else {
+			/* or restore paint if 3D view */
+			if ((p) && (p->paintmode == GP_PAINTMODE_ERASER)) {
+				WM_cursor_modal_set(p->win, CURSOR_STD);
+			}
+
+			/* drawing batch cache is dirty now */
+			bGPdata *gpd = CTX_data_gpencil_data(C);
+			if (gpd) {
+				gp_update_cache(gpd);
+			}
+		}
+
+		/* clear undo stack */
+		gpencil_undo_finish();
 
 		/* cleanup */
 		gp_paint_cleanup(p);
 		gp_session_cleanup(p);
+		ED_gpencil_toggle_brush_cursor(C, true, NULL);
+
+		/* finally, free the temp data */
 		gp_session_free(p);
+		p = NULL;
 	}
 
 	op->customdata = NULL;
@@ -1986,9 +2157,18 @@ static int gpencil_draw_init(bContext *C, wmOperator *op, const wmEvent *event)
 {
 	tGPsdata *p;
 	eGPencil_PaintModes paintmode = RNA_enum_get(op->ptr, "mode");
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	Brush *brush = BKE_brush_getactive_gpencil(ts);
+
+	/* if mode is draw and the brush is eraser, cancel */
+	if (paintmode != GP_PAINTMODE_ERASER) {
+		if ((brush) && (brush->gpencil_settings->brush_type == GP_BRUSH_TYPE_ERASE)) {
+			return 0;
+		}
+	}
 
 	/* check context */
-	p = op->customdata = gp_session_initpaint(C);
+	p = op->customdata = gp_session_initpaint(C, op);
 	if ((p == NULL) || (p->status == GP_STATUS_ERROR)) {
 		/* something wasn't set correctly in context */
 		gpencil_draw_exit(C, op);
@@ -2009,6 +2189,8 @@ static int gpencil_draw_init(bContext *C, wmOperator *op, const wmEvent *event)
 		p->keymodifier = -1;
 	}
 
+	p->reports = op->reports;
+
 	/* everything is now setup ok */
 	return 1;
 }
@@ -2019,10 +2201,15 @@ static int gpencil_draw_init(bContext *C, wmOperator *op, const wmEvent *event)
 /* ensure that the correct cursor icon is set */
 static void gpencil_draw_cursor_set(tGPsdata *p)
 {
-	if (p->paintmode == GP_PAINTMODE_ERASER)
+	Brush *brush = p->brush;
+	if ((p->paintmode == GP_PAINTMODE_ERASER) ||
+	    (brush->gpencil_settings->brush_type == GP_BRUSH_TYPE_ERASE))
+	{
 		WM_cursor_modal_set(p->win, BC_CROSSCURSOR);  /* XXX need a better cursor */
-	else
-		WM_cursor_modal_set(p->win, BC_PAINTBRUSHCURSOR);
+	}
+	else {
+		WM_cursor_modal_set(p->win, CURSOR_STD);
+	}
 }
 
 /* update UI indicators of status, including cursor and header prints */
@@ -2030,11 +2217,24 @@ static void gpencil_draw_status_indicators(bContext *C, tGPsdata *p)
 {
 	/* header prints */
 	switch (p->status) {
-		case GP_STATUS_PAINTING:
-			/* only print this for paint-sessions, otherwise it gets annoying */
-			if (GPENCIL_SKETCH_SESSIONS_ON(p->scene))
-				ED_workspace_status_text(C, IFACE_("Grease Pencil: Drawing/erasing stroke... Release to end stroke"));
-			break;
+
+#if 0 /* FIXME, this never runs! */
+		switch (p->paintmode) {
+			case GP_PAINTMODE_DRAW_POLY:
+				/* Provide usage tips, since this is modal, and unintuitive without hints */
+				ED_workspace_status_text(
+				        C, IFACE_(
+				                "Annotation Create Poly: LMB click to place next stroke vertex | "
+				                "ESC/Enter to end  (or click outside this area)"
+				        ));
+				break;
+			default:
+				/* Do nothing - the others are self explanatory, exit quickly once the mouse is released
+				 * Showing any text would just be annoying as it would flicker.
+				 */
+				break;
+		}
+#endif
 
 		case GP_STATUS_IDLING:
 			/* print status info */
@@ -2048,12 +2248,11 @@ static void gpencil_draw_status_indicators(bContext *C, tGPsdata *p)
 					                                  "ESC/Enter to end  (or click outside this area)"));
 					break;
 				case GP_PAINTMODE_DRAW:
-					ED_workspace_status_text(C, IFACE_("Grease Pencil Freehand Session: Hold and drag LMB to draw | "
-					                                  "E/ESC/Enter to end  (or click outside this area)"));
+					ED_workspace_status_text(C, IFACE_("Grease Pencil Freehand Session: Hold and drag LMB to draw"));
 					break;
 				case GP_PAINTMODE_DRAW_POLY:
 					ED_workspace_status_text(C, IFACE_("Grease Pencil Poly Session: LMB click to place next stroke vertex | "
-					                                  "ESC/Enter to end  (or click outside this area)"));
+					                                  "Release Shift/ESC/Enter to end  (or click outside this area)"));
 					break;
 
 				default: /* unhandled future cases */
@@ -2067,14 +2266,19 @@ static void gpencil_draw_status_indicators(bContext *C, tGPsdata *p)
 			/* clear status string */
 			ED_workspace_status_text(C, NULL);
 			break;
+		case GP_STATUS_PAINTING:
+			break;
 	}
 }
 
 /* ------------------------------- */
 
 /* create a new stroke point at the point indicated by the painting context */
-static void gpencil_draw_apply(wmOperator *op, tGPsdata *p, Depsgraph *depsgraph)
+static void gpencil_draw_apply(bContext *C, wmOperator *op, tGPsdata *p, Depsgraph *depsgraph)
 {
+	bGPdata *gpd = p->gpd;
+	tGPspoint *pt = NULL;
+
 	/* handle drawing/erasing -> test for erasing first */
 	if (p->paintmode == GP_PAINTMODE_ERASER) {
 		/* do 'live' erasing now */
@@ -2087,6 +2291,17 @@ static void gpencil_draw_apply(wmOperator *op, tGPsdata *p, Depsgraph *depsgraph
 	}
 	/* only add current point to buffer if mouse moved (even though we got an event, it might be just noise) */
 	else if (gp_stroke_filtermval(p, p->mval, p->mvalo)) {
+
+		/* if lazy mouse, interpolate the last and current mouse positions */
+		if (GPENCIL_LAZY_MODE(p->brush, p->shift)) {
+			float now_mouse[2];
+			float last_mouse[2];
+			copy_v2fl_v2i(now_mouse, p->mval);
+			copy_v2fl_v2i(last_mouse, p->mvalo);
+			interp_v2_v2v2(now_mouse, now_mouse, last_mouse, p->brush->smooth_stroke_factor);
+			round_v2i_v2fl(p->mval, now_mouse);
+		}
+
 		/* try to add point */
 		short ok = gp_stroke_addpoint(p, p->mval, p->pressure, p->curtime);
 
@@ -2124,11 +2339,24 @@ static void gpencil_draw_apply(wmOperator *op, tGPsdata *p, Depsgraph *depsgraph
 		p->mvalo[1] = p->mval[1];
 		p->opressure = p->pressure;
 		p->ocurtime = p->curtime;
+
+		pt = (tGPspoint *)gpd->runtime.sbuffer + gpd->runtime.sbuffer_size - 1;
+		if (p->paintmode != GP_PAINTMODE_ERASER) {
+			ED_gpencil_toggle_brush_cursor(C, true, &pt->x);
+		}
+	}
+	else if ((p->brush->gpencil_settings->flag & GP_BRUSH_STABILIZE_MOUSE_TEMP) &&
+	         (gpd->runtime.sbuffer_size > 0))
+	{
+		pt = (tGPspoint *)gpd->runtime.sbuffer + gpd->runtime.sbuffer_size - 1;
+		if (p->paintmode != GP_PAINTMODE_ERASER) {
+			ED_gpencil_toggle_brush_cursor(C, true, &pt->x);
+		}
 	}
 }
 
 /* handle draw event */
-static void gpencil_draw_apply_event(wmOperator *op, const wmEvent *event, Depsgraph *depsgraph)
+static void gpencil_draw_apply_event(bContext *C, wmOperator *op, const wmEvent *event, Depsgraph *depsgraph, int x, int y)
 {
 	tGPsdata *p = op->customdata;
 	PointerRNA itemptr;
@@ -2136,13 +2364,15 @@ static void gpencil_draw_apply_event(wmOperator *op, const wmEvent *event, Depsg
 	int tablet = 0;
 
 	/* convert from window-space to area-space mouse coordinates
+	 * add any x,y override position for fake events
 	 * NOTE: float to ints conversions, +1 factor is probably used to ensure a bit more accurate rounding...
 	 */
-	p->mval[0] = event->mval[0] + 1;
-	p->mval[1] = event->mval[1] + 1;
+	p->mval[0] = event->mval[0] + 1 - x;
+	p->mval[1] = event->mval[1] + 1 - y;
+	p->shift = event->shift;
 
 	/* verify key status for straight lines */
-	if ((event->ctrl > 0) || (event->alt > 0)) {
+	if ((event->alt > 0) && (RNA_boolean_get(op->ptr, "disable_straight") == false)) {
 		if (p->straight[0] == 0) {
 			int dx = abs(p->mval[0] - p->mvalo[0]);
 			int dy = abs(p->mval[1] - p->mvalo[1]);
@@ -2151,12 +2381,12 @@ static void gpencil_draw_apply_event(wmOperator *op, const wmEvent *event, Depsg
 				if (dx >= dy) {
 					/* horizontal */
 					p->straight[0] = 1;
-					p->straight[1] = p->mval[1]; /* save y */
+					p->straight[1] = (short)p->mval[1]; /* save y */
 				}
 				else {
 					/* vertical */
 					p->straight[0] = 2;
-					p->straight[1] = p->mval[0]; /* save x */
+					p->straight[1] = (short)p->mval[0]; /* save x */
 				}
 			}
 		}
@@ -2191,6 +2421,22 @@ static void gpencil_draw_apply_event(wmOperator *op, const wmEvent *event, Depsg
 		p->pressure = 1.0f;
 	}
 
+	/* special eraser modes */
+	if (p->paintmode == GP_PAINTMODE_ERASER) {
+		if (event->shift > 0) {
+			p->flags |= GP_PAINTFLAG_HARD_ERASER;
+		}
+		else {
+			p->flags &= ~GP_PAINTFLAG_HARD_ERASER;
+		}
+		if (event->alt > 0) {
+			p->flags |= GP_PAINTFLAG_STROKE_ERASER;
+		}
+		else {
+			p->flags &= ~GP_PAINTFLAG_STROKE_ERASER;
+		}
+	}
+
 	/* special exception for start of strokes (i.e. maybe for just a dot) */
 	if (p->flags & GP_PAINTFLAG_FIRSTRUN) {
 		p->flags &= ~GP_PAINTFLAG_FIRSTRUN;
@@ -2233,7 +2479,7 @@ static void gpencil_draw_apply_event(wmOperator *op, const wmEvent *event, Depsg
 	RNA_float_set(&itemptr, "time", p->curtime - p->inittime);
 
 	/* apply the current latest drawing point */
-	gpencil_draw_apply(op, p, depsgraph);
+	gpencil_draw_apply(C, op, p, depsgraph);
 
 	/* force refresh */
 	ED_region_tag_redraw(p->ar); /* just active area for now, since doing whole screen is too slow */
@@ -2251,7 +2497,7 @@ static int gpencil_draw_exec(bContext *C, wmOperator *op)
 
 	/* try to initialize context data needed while drawing */
 	if (!gpencil_draw_init(C, op, NULL)) {
-		if (op->customdata) MEM_freeN(op->customdata);
+		MEM_SAFE_FREE(op->customdata);
 		/* printf("\tGP - no valid data\n"); */
 		return OPERATOR_CANCELLED;
 	}
@@ -2298,7 +2544,7 @@ static int gpencil_draw_exec(bContext *C, wmOperator *op)
 		}
 
 		/* apply this data as necessary now (as per usual) */
-		gpencil_draw_apply(op, p, depsgraph);
+		gpencil_draw_apply(C, op, p, depsgraph);
 	}
 	RNA_END;
 
@@ -2324,6 +2570,11 @@ static int gpencil_draw_invoke(bContext *C, wmOperator *op, const wmEvent *event
 	if (G.debug & G_DEBUG)
 		printf("GPencil - Starting Drawing\n");
 
+	/* support for tablets eraser pen */
+	if (gpencil_is_tablet_eraser_active(event)) {
+		RNA_enum_set(op->ptr, "mode", GP_PAINTMODE_ERASER);
+	}
+
 	/* try to initialize context data needed while drawing */
 	if (!gpencil_draw_init(C, op, event)) {
 		if (op->customdata)
@@ -2344,6 +2595,9 @@ static int gpencil_draw_invoke(bContext *C, wmOperator *op, const wmEvent *event
 	if (p->paintmode == GP_PAINTMODE_ERASER) {
 		gpencil_draw_toggle_eraser_cursor(C, p, true);
 	}
+	else {
+		ED_gpencil_toggle_brush_cursor(C, true, NULL);
+	}
 	/* set cursor
 	 * NOTE: This may change later (i.e. intentionally via brush toggle,
 	 *       or unintentionally if the user scrolls outside the area)...
@@ -2357,7 +2611,7 @@ static int gpencil_draw_invoke(bContext *C, wmOperator *op, const wmEvent *event
 		p->status = GP_STATUS_PAINTING;
 
 		/* handle the initial drawing - i.e. for just doing a simple dot */
-		gpencil_draw_apply_event(op, event, CTX_data_depsgraph(C));
+		gpencil_draw_apply_event(C, op, event, CTX_data_depsgraph(C), 0, 0);
 		op->flag |= OP_IS_MODAL_CURSOR_REGION;
 	}
 	else {
@@ -2366,9 +2620,29 @@ static int gpencil_draw_invoke(bContext *C, wmOperator *op, const wmEvent *event
 		op->flag |= OP_IS_MODAL_CURSOR_REGION;
 	}
 
+	/* enable paint mode */
+	if (p->sa->spacetype == SPACE_VIEW3D) {
+		Object *ob = CTX_data_active_object(C);
+		if (ob && (ob->type == OB_GPENCIL) && ((p->gpd->flag & GP_DATA_STROKE_PAINTMODE) == 0)) {
+			/* Just set paintmode flag... */
+			p->gpd->flag |= GP_DATA_STROKE_PAINTMODE;
+			/* disable other GP modes */
+			p->gpd->flag &= ~GP_DATA_STROKE_EDITMODE;
+			p->gpd->flag &= ~GP_DATA_STROKE_SCULPTMODE;
+			p->gpd->flag &= ~GP_DATA_STROKE_WEIGHTMODE;
+			/* set workspace mode */
+			ob->restore_mode = ob->mode;
+			ob->mode = OB_MODE_GPENCIL_PAINT;
+			/* redraw mode on screen */
+			WM_event_add_notifier(C, NC_SCENE | ND_MODE, NULL);
+		}
+	}
+
 	WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
+
 	/* add a modal handler for this operator, so that we can then draw continuous strokes */
 	WM_event_add_modal_handler(C, op);
+
 	return OPERATOR_RUNNING_MODAL;
 }
 
@@ -2397,7 +2671,7 @@ static tGPsdata *gpencil_stroke_begin(bContext *C, wmOperator *op)
 	/* XXX: watch it with the paintmode! in future,
 	 *      it'd be nice to allow changing paint-mode when in sketching-sessions */
 
-	if (gp_session_initdata(C, p))
+	if (gp_session_initdata(C, op, p))
 		gp_paint_initstroke(p, p->paintmode, CTX_data_depsgraph(C));
 
 	if (p->status != GP_STATUS_ERROR) {
@@ -2448,6 +2722,76 @@ static void gpencil_move_last_stroke_to_back(bContext *C)
 	BLI_insertlinkbefore(&gpf->strokes, gpf->strokes.first, gps);
 }
 
+/* add events for missing mouse movements when the artist draw very fast */
+static void gpencil_add_missing_events(bContext *C, wmOperator *op, const wmEvent *event, tGPsdata *p)
+{
+	Brush *brush = p->brush;
+	if (brush->gpencil_settings->input_samples == 0) {
+		return;
+	}
+	RegionView3D *rv3d = p->ar->regiondata;
+	float defaultpixsize = rv3d->pixsize * 1000.0f;
+	int samples = (GP_MAX_INPUT_SAMPLES - brush->gpencil_settings->input_samples + 1);
+	float thickness = (float)brush->size;
+
+	float pt[2], a[2], b[2];
+	float vec[3];
+	float scale = 1.0f;
+
+	/* get pixel scale */
+	gp_get_3d_reference(p, vec);
+	mul_m4_v3(rv3d->persmat, vec);
+	if (rv3d->is_persp) {
+		scale = vec[2] * defaultpixsize;
+	}
+	else {
+		scale = defaultpixsize;
+	}
+
+	/* The thickness of the brush is reduced of thickness to get overlap dots */
+	float dot_factor = 0.50f;
+	if (samples < 2) {
+		dot_factor = 0.05f;
+	}
+	else if (samples < 4) {
+		dot_factor = 0.10f;
+	}
+	else if (samples < 7) {
+		dot_factor = 0.3f;
+	}
+	else if (samples < 10) {
+		dot_factor = 0.4f;
+	}
+	float factor = ((thickness * dot_factor) / scale) * samples;
+
+	copy_v2fl_v2i(a, p->mvalo);
+	b[0] = event->mval[0] + 1;
+	b[1] = event->mval[1] + 1;
+
+	/* get distance in pixels */
+	float dist = len_v2v2(a, b);
+
+	/* for very small distances, add a half way point */
+	if (dist <= 2.0f) {
+		interp_v2_v2v2(pt, a, b, 0.5f);
+		sub_v2_v2v2(pt, b, pt);
+		/* create fake event */
+		gpencil_draw_apply_event(C, op, event, CTX_data_depsgraph(C),
+		                         (int)pt[0], (int)pt[1]);
+	}
+	else if (dist >= factor) {
+		int slices = 2 + (int)((dist - 1.0) / factor);
+		float n = 1.0f / slices;
+		for (int i = 1; i < slices; i++) {
+			interp_v2_v2v2(pt, a, b, n * i);
+			sub_v2_v2v2(pt, b, pt);
+			/* create fake event */
+			gpencil_draw_apply_event(C, op, event, CTX_data_depsgraph(C),
+			                         (int)pt[0], (int)pt[1]);
+		}
+	}
+}
+
 /* events handling during interactive drawing part of operator */
 static int gpencil_draw_modal(bContext *C, wmOperator *op, const wmEvent *event)
 {
@@ -2488,10 +2832,6 @@ static int gpencil_draw_modal(bContext *C, wmOperator *op, const wmEvent *event)
 			 *   is essential for ensuring that they can quickly return to that view
 			 */
 		}
-		else if ((ELEM(event->type, p->keymodifier)) && (event->val == KM_RELEASE)) {
-			/* enable continuous if release D key in mid drawing */
-			p->scene->toolsettings->gpencil_flags |= GP_TOOL_FLAG_PAINTSESSIONS_ON;
-		}
 		else if ((event->type == BKEY) && (event->val == KM_RELEASE)) {
 			/* Add Blank Frame
 			 * - Since this operator is non-modal, we can just call it here, and keep going...
@@ -2510,7 +2850,10 @@ static int gpencil_draw_modal(bContext *C, wmOperator *op, const wmEvent *event)
 	/* exit painting mode (and/or end current stroke)
 	 * NOTE: cannot do RIGHTMOUSE (as is standard for canceling) as that would break polyline [#32647]
 	 */
-	if (ELEM(event->type, RETKEY, PADENTER, ESCKEY, SPACEKEY, EKEY)) {
+	/* if polyline and release shift must cancel */
+	if ((ELEM(event->type, RETKEY, PADENTER, ESCKEY, SPACEKEY, EKEY)) ||
+	    ((p->paintmode == GP_PAINTMODE_DRAW_POLY) && (event->shift == 0)))
+	{
 		/* exit() ends the current stroke before cleaning up */
 		/* printf("\t\tGP - end of paint op + end of stroke\n"); */
 		/* if drawing polygon and enable on back, must move stroke */
@@ -2537,10 +2880,8 @@ static int gpencil_draw_modal(bContext *C, wmOperator *op, const wmEvent *event)
 			int sketch = 0;
 
 			/* basically, this should be mouse-button up = end stroke
-			 * BUT what happens next depends on whether we 'painting sessions' is enabled
+			 * BUT, polyline drawing is an exception -- all knots should be added during one session
 			 */
-			sketch |= GPENCIL_SKETCH_SESSIONS_ON(p->scene);
-			/* polyline drawing is also 'sketching' -- all knots should be added during one session */
 			sketch |= (p->paintmode == GP_PAINTMODE_DRAW_POLY);
 
 			if (sketch) {
@@ -2585,6 +2926,9 @@ static int gpencil_draw_modal(bContext *C, wmOperator *op, const wmEvent *event)
 						}
 					}
 				}
+				/* drawing batch cache is dirty now */
+				gp_update_cache(p->gpd);
+
 				p->status = GP_STATUS_DONE;
 				estate = OPERATOR_FINISHED;
 			}
@@ -2689,7 +3033,9 @@ static int gpencil_draw_modal(bContext *C, wmOperator *op, const wmEvent *event)
 		if (ELEM(event->type, MOUSEMOVE, INBETWEEN_MOUSEMOVE) || (p->flags & GP_PAINTFLAG_FIRSTRUN)) {
 			/* handle drawing event */
 			/* printf("\t\tGP - add point\n"); */
-			gpencil_draw_apply_event(op, event, CTX_data_depsgraph(C));
+			gpencil_add_missing_events(C, op, event, p);
+
+			gpencil_draw_apply_event(C, op, event, CTX_data_depsgraph(C), 0, 0);
 
 			/* finish painting operation if anything went wrong just now */
 			if (p->status == GP_STATUS_ERROR) {
@@ -2791,7 +3137,7 @@ void GPENCIL_OT_draw(wmOperatorType *ot)
 	/* identifiers */
 	ot->name = "Grease Pencil Draw";
 	ot->idname = "GPENCIL_OT_draw";
-	ot->description = "Make annotations on the active data";
+	ot->description = "Draw a new stroke in the active Grease Pencil Object";
 
 	/* api callbacks */
 	ot->exec = gpencil_draw_exec;
@@ -2811,5 +3157,11 @@ void GPENCIL_OT_draw(wmOperatorType *ot)
 
 	/* NOTE: wait for input is enabled by default, so that all UI code can work properly without needing users to know about this */
 	prop = RNA_def_boolean(ot->srna, "wait_for_input", true, "Wait for Input", "Wait for first click instead of painting immediately");
+	RNA_def_property_flag(prop, PROP_HIDDEN | PROP_SKIP_SAVE);
+
+	prop = RNA_def_boolean(ot->srna, "disable_straight", false, "No Straight lines", "Disable key for straight lines");
+	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
+
+	prop = RNA_def_boolean(ot->srna, "disable_fill", false, "No Fill Areas", "Disable fill to use stroke as fill boundary");
 	RNA_def_property_flag(prop, PROP_SKIP_SAVE);
 }
diff --git a/source/blender/editors/gpencil/gpencil_primitive.c b/source/blender/editors/gpencil/gpencil_primitive.c
new file mode 100644
index 00000000000..2dfdeeba0b6
--- /dev/null
+++ b/source/blender/editors/gpencil/gpencil_primitive.c
@@ -0,0 +1,716 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2017, Blender Foundation
+ * This is a new part of Blender
+ *
+ * Contributor(s): Antonio Vazquez
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ *
+ * Operators for creating new Grease Pencil primitives (boxes, circles, ...)
+ */
+
+/** \file blender/editors/gpencil/gpencil_primitive.c
+ *  \ingroup edgpencil
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <math.h>
+
+#include "MEM_guardedalloc.h"
+
+#include "BLI_blenlib.h"
+#include "BLI_utildefines.h"
+#include "BLI_math.h"
+
+#include "BLT_translation.h"
+
+#include "DNA_brush_types.h"
+#include "DNA_gpencil_types.h"
+#include "DNA_meshdata_types.h"
+#include "DNA_object_types.h"
+#include "DNA_scene_types.h"
+#include "DNA_screen_types.h"
+#include "DNA_space_types.h"
+#include "DNA_view3d_types.h"
+
+#include "BKE_main.h"
+#include "BKE_brush.h"
+#include "BKE_context.h"
+#include "BKE_global.h"
+#include "BKE_gpencil.h"
+#include "BKE_library.h"
+#include "BKE_material.h"
+#include "BKE_paint.h"
+#include "BKE_report.h"
+
+#include "UI_interface.h"
+
+#include "WM_api.h"
+#include "WM_types.h"
+
+#include "RNA_access.h"
+#include "RNA_define.h"
+#include "RNA_enum_types.h"
+
+#include "ED_gpencil.h"
+#include "ED_object.h"
+#include "ED_screen.h"
+#include "ED_view3d.h"
+#include "ED_space_api.h"
+
+#include "DEG_depsgraph.h"
+#include "DEG_depsgraph_query.h"
+
+#include "gpencil_intern.h"
+
+#define MIN_EDGES 2
+#define MAX_EDGES 100
+
+#define IDLE 0
+#define IN_PROGRESS 1
+
+/* ************************************************ */
+/* Core/Shared Utilities */
+
+/* Poll callback for primitive operators */
+static bool gpencil_primitive_add_poll(bContext *C)
+{
+	/* only 3D view */
+	ScrArea *sa = CTX_wm_area(C);
+	if (sa && sa->spacetype != SPACE_VIEW3D) {
+		return 0;
+	}
+
+	/* need data to create primitive */
+	bGPdata *gpd = CTX_data_gpencil_data(C);
+	if (gpd == NULL) {
+		return 0;
+	}
+
+	/* only in edit and paint modes
+	 * - paint as it's the "drawing/creation mode"
+	 * - edit as this is more of an atomic editing operation
+	 *   (similar to copy/paste), and also for consistency
+	 */
+	if ((gpd->flag & (GP_DATA_STROKE_PAINTMODE | GP_DATA_STROKE_EDITMODE)) == 0) {
+		CTX_wm_operator_poll_msg_set(C, "Primitives can only be added in Draw or Edit modes");
+		return 0;
+	}
+
+	/* don't allow operator to function if the active layer is locked/hidden
+	 * (BUT, if there isn't an active layer, we are free to add new layer when the time comes)
+	 */
+	bGPDlayer *gpl = BKE_gpencil_layer_getactive(gpd);
+	if ((gpl) && (gpl->flag & (GP_LAYER_LOCKED | GP_LAYER_HIDE))) {
+		CTX_wm_operator_poll_msg_set(C, "Primitives cannot be added as active layer is locked or hidden");
+		return 0;
+	}
+
+	return 1;
+}
+
+
+/* ****************** Primitive Interactive *********************** */
+
+/* Helper: Create internal strokes primitives data */
+static void gp_primitive_set_initdata(bContext *C, tGPDprimitive *tgpi)
+{
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+
+	bGPDlayer *gpl = CTX_data_active_gpencil_layer(C);
+	Brush *brush;
+
+	/* if brush doesn't exist, create a new one */
+	Paint *paint = BKE_brush_get_gpencil_paint(ts);
+	/* if not exist, create a new one */
+	if (paint->brush == NULL) {
+		/* create new brushes */
+		BKE_brush_gpencil_presets(C);
+		brush = BKE_brush_getactive_gpencil(ts);
+	}
+	else {
+		/* Use the current */
+		brush = BKE_brush_getactive_gpencil(ts);
+	}
+	tgpi->brush = brush;
+
+	/* if layer doesn't exist, create a new one */
+	if (gpl == NULL) {
+		gpl = BKE_gpencil_layer_addnew(tgpi->gpd, DATA_("Primitives"), true);
+	}
+	tgpi->gpl = gpl;
+
+	/* create a new temporary frame */
+	tgpi->gpf = MEM_callocN(sizeof(bGPDframe), "Temp bGPDframe");
+	tgpi->gpf->framenum = tgpi->cframe = cfra_eval;
+
+	/* create new temp stroke */
+	bGPDstroke *gps = MEM_callocN(sizeof(bGPDstroke), "Temp bGPDstroke");
+	gps->thickness = 2.0f;
+	gps->inittime = 0.0f;
+
+	/* enable recalculation flag by default */
+	gps->flag |= GP_STROKE_RECALC_CACHES;
+	/* the polygon must be closed, so enabled cyclic */
+	gps->flag |= GP_STROKE_CYCLIC;
+	gps->flag |= GP_STROKE_3DSPACE;
+
+	gps->mat_nr = BKE_gpencil_get_material_index(tgpi->ob, tgpi->mat) - 1;
+
+	/* allocate memory for storage points, but keep empty */
+	gps->totpoints = 0;
+	gps->points = MEM_callocN(sizeof(bGPDspoint), "gp_stroke_points");
+	gps->dvert = MEM_callocN(sizeof(MDeformVert), "gp_stroke_weights");
+	/* initialize triangle memory to dummy data */
+	gps->tot_triangles = 0;
+	gps->triangles = NULL;
+	gps->flag |= GP_STROKE_RECALC_CACHES;
+
+	/* add to strokes */
+	BLI_addtail(&tgpi->gpf->strokes, gps);
+}
+
+/* ----------------------- */
+/* Drawing Callbacks */
+
+/* Drawing callback for modal operator in 3d mode */
+static void gpencil_primitive_draw_3d(const bContext *C, ARegion *UNUSED(ar), void *arg)
+{
+	tGPDprimitive *tgpi = (tGPDprimitive *)arg;
+	ED_gp_draw_primitives(C, tgpi, REGION_DRAW_POST_VIEW);
+}
+
+/* ----------------------- */
+
+/* Helper: Draw status message while the user is running the operator */
+static void gpencil_primitive_status_indicators(bContext *C, tGPDprimitive *tgpi)
+{
+	Scene *scene = tgpi->scene;
+	char status_str[UI_MAX_DRAW_STR];
+	char msg_str[UI_MAX_DRAW_STR];
+
+	if (tgpi->type == GP_STROKE_BOX) {
+		BLI_strncpy(msg_str, IFACE_("Rectangle: ESC/RMB to cancel, LMB set origin, Enter/LMB to confirm, Shift to square"), UI_MAX_DRAW_STR);
+	}
+	else if (tgpi->type == GP_STROKE_LINE) {
+		BLI_strncpy(msg_str, IFACE_("Line: ESC/RMB to cancel, LMB set origin, Enter/LMB to confirm"), UI_MAX_DRAW_STR);
+	}
+	else {
+		BLI_strncpy(msg_str, IFACE_("Circle: ESC/RMB to cancel, Enter/LMB to confirm, WHEEL to adjust edge number, Shift to square"), UI_MAX_DRAW_STR);
+	}
+
+	if (tgpi->type == GP_STROKE_CIRCLE) {
+		if (hasNumInput(&tgpi->num)) {
+			char str_offs[NUM_STR_REP_LEN];
+
+			outputNumInput(&tgpi->num, str_offs, &scene->unit);
+			BLI_snprintf(status_str, sizeof(status_str), "%s: %s", msg_str, str_offs);
+		}
+		else {
+			if (tgpi->flag == IN_PROGRESS) {
+				BLI_snprintf(
+				        status_str, sizeof(status_str), "%s: %d (%d, %d) (%d, %d)", msg_str, (int)tgpi->tot_edges,
+				        tgpi->top[0], tgpi->top[1], tgpi->bottom[0], tgpi->bottom[1]);
+			}
+			else {
+				BLI_snprintf(
+				        status_str, sizeof(status_str), "%s: %d (%d, %d)", msg_str, (int)tgpi->tot_edges,
+				        tgpi->bottom[0], tgpi->bottom[1]);
+			}
+		}
+	}
+	else {
+		if (tgpi->flag == IN_PROGRESS) {
+			BLI_snprintf(
+			        status_str, sizeof(status_str), "%s: (%d, %d) (%d, %d)", msg_str,
+			        tgpi->top[0], tgpi->top[1], tgpi->bottom[0], tgpi->bottom[1]);
+		}
+		else {
+			BLI_snprintf(
+			        status_str, sizeof(status_str), "%s: (%d, %d)", msg_str,
+			        tgpi->bottom[0], tgpi->bottom[1]);
+		}
+	}
+	ED_workspace_status_text(C, status_str);
+}
+
+/* ----------------------- */
+
+/* create a rectangle */
+static void gp_primitive_rectangle(tGPDprimitive *tgpi, tGPspoint *points2D)
+{
+	BLI_assert(tgpi->tot_edges == 4);
+
+	points2D[0].x = tgpi->top[0];
+	points2D[0].y = tgpi->top[1];
+
+	points2D[1].x = tgpi->bottom[0];
+	points2D[1].y = tgpi->top[1];
+
+	points2D[2].x = tgpi->bottom[0];
+	points2D[2].y = tgpi->bottom[1];
+
+	points2D[3].x = tgpi->top[0];
+	points2D[3].y = tgpi->bottom[1];
+}
+
+/* create a line */
+static void gp_primitive_line(tGPDprimitive *tgpi, tGPspoint *points2D)
+{
+	BLI_assert(tgpi->tot_edges == 2);
+
+	points2D[0].x = tgpi->top[0];
+	points2D[0].y = tgpi->top[1];
+
+	points2D[1].x = tgpi->bottom[0];
+	points2D[1].y = tgpi->bottom[1];
+}
+
+/* create a circle */
+static void gp_primitive_circle(tGPDprimitive *tgpi, tGPspoint *points2D)
+{
+	const int totpoints = tgpi->tot_edges;
+	const float step = (2.0f * M_PI) / (float)(totpoints);
+	float center[2];
+	float radius[2];
+	float a = 0.0f;
+
+	/* TODO: Use math-lib functions for these? */
+	center[0] = tgpi->top[0] + ((tgpi->bottom[0] - tgpi->top[0]) / 2.0f);
+	center[1] = tgpi->top[1] + ((tgpi->bottom[1] - tgpi->top[1]) / 2.0f);
+	radius[0] = fabsf(((tgpi->bottom[0] - tgpi->top[0]) / 2.0f));
+	radius[1] = fabsf(((tgpi->bottom[1] - tgpi->top[1]) / 2.0f));
+
+	for (int i = 0; i < totpoints; i++) {
+		tGPspoint *p2d = &points2D[i];
+
+		p2d->x = (int)(center[0] + cosf(a) * radius[0]);
+		p2d->y = (int)(center[1] + sinf(a) * radius[1]);
+		a += step;
+	}
+}
+
+/* Helper: Update shape of the stroke */
+static void gp_primitive_update_strokes(bContext *C, tGPDprimitive *tgpi)
+{
+	ToolSettings *ts = tgpi->scene->toolsettings;
+	bGPdata *gpd = tgpi->gpd;
+	bGPDstroke *gps = tgpi->gpf->strokes.first;
+
+	/* realloc points to new size */
+	/* TODO: only do this if the size has changed? */
+	gps->points = MEM_reallocN(gps->points, sizeof(bGPDspoint) * tgpi->tot_edges);
+	gps->dvert = MEM_reallocN(gps->dvert, sizeof(MDeformVert) * tgpi->tot_edges);
+	gps->totpoints = tgpi->tot_edges;
+
+	/* compute screen-space coordinates for points */
+	tGPspoint *points2D = MEM_callocN(sizeof(tGPspoint) * tgpi->tot_edges, "gp primitive points2D");
+	switch (tgpi->type) {
+		case GP_STROKE_BOX:
+			gp_primitive_rectangle(tgpi, points2D);
+			break;
+		case GP_STROKE_LINE:
+			gp_primitive_line(tgpi, points2D);
+			break;
+		case GP_STROKE_CIRCLE:
+			gp_primitive_circle(tgpi, points2D);
+			break;
+		default:
+			break;
+	}
+
+	/* convert screen-coordinates to 3D coordinates */
+	for (int i = 0; i < gps->totpoints; i++) {
+		bGPDspoint *pt = &gps->points[i];
+		MDeformVert *dvert = &gps->dvert[i];
+		tGPspoint *p2d = &points2D[i];
+
+
+		/* convert screen-coordinates to 3D coordinates */
+		gp_stroke_convertcoords_tpoint(tgpi->scene, tgpi->ar, tgpi->v3d, tgpi->ob, tgpi->gpl, p2d, NULL, &pt->x);
+
+		pt->pressure = 1.0f;
+		pt->strength = tgpi->brush->gpencil_settings->draw_strength;
+		pt->time = 0.0f;
+
+		dvert->totweight = 0;
+		dvert->dw = NULL;
+	}
+
+	/* if axis locked, reproject to plane locked */
+	if (tgpi->lock_axis > GP_LOCKAXIS_NONE) {
+		bGPDspoint *tpt = gps->points;
+		float origin[3];
+		ED_gp_get_drawing_reference(tgpi->v3d, tgpi->scene, tgpi->ob, tgpi->gpl,
+		                            ts->gpencil_v3d_align, origin);
+
+		for (int i = 0; i < gps->totpoints; i++, tpt++) {
+			ED_gp_project_point_to_plane(tgpi->ob, tgpi->rv3d, origin,
+			                             ts->gp_sculpt.lock_axis - 1,
+			                             tpt);
+		}
+	}
+
+	/* if parented change position relative to parent object */
+	for (int i = 0; i < gps->totpoints; i++) {
+		bGPDspoint *pt = &gps->points[i];
+		gp_apply_parent_point(tgpi->depsgraph, tgpi->ob, tgpi->gpd, tgpi->gpl, pt);
+	}
+
+	/* force fill recalc */
+	gps->flag |= GP_STROKE_RECALC_CACHES;
+
+	/* free temp data */
+	MEM_SAFE_FREE(points2D);
+
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
+}
+
+/* Update screen and stroke */
+static void gpencil_primitive_update(bContext *C, wmOperator *op, tGPDprimitive *tgpi)
+{
+	/* update indicator in header */
+	gpencil_primitive_status_indicators(C, tgpi);
+	/* apply... */
+	tgpi->type = RNA_enum_get(op->ptr, "type");
+	tgpi->tot_edges = RNA_int_get(op->ptr, "edges");
+	/* update points position */
+	gp_primitive_update_strokes(C, tgpi);
+}
+
+/* ----------------------- */
+
+/* Exit and free memory */
+static void gpencil_primitive_exit(bContext *C, wmOperator *op)
+{
+	tGPDprimitive *tgpi = op->customdata;
+	bGPdata *gpd = tgpi->gpd;
+
+	/* don't assume that operator data exists at all */
+	if (tgpi) {
+		/* remove drawing handler */
+		if (tgpi->draw_handle_3d) {
+			ED_region_draw_cb_exit(tgpi->ar->type, tgpi->draw_handle_3d);
+		}
+
+		/* clear status message area */
+		ED_workspace_status_text(C, NULL);
+
+		/* finally, free memory used by temp data */
+		BKE_gpencil_free_strokes(tgpi->gpf);
+		MEM_freeN(tgpi->gpf);
+		MEM_freeN(tgpi);
+	}
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
+
+	/* clear pointer */
+	op->customdata = NULL;
+}
+
+/* Init new temporary primitive data */
+static void gpencil_primitive_init(bContext *C, wmOperator *op)
+{
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	bGPdata *gpd = CTX_data_gpencil_data(C);
+	Main *bmain = CTX_data_main(C);
+	Scene *scene = CTX_data_scene(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
+
+	/* create temporary operator data */
+	tGPDprimitive *tgpi = MEM_callocN(sizeof(tGPDprimitive), "GPencil Primitive Data");
+	op->customdata = tgpi;
+
+	/* set current scene and window info */
+	tgpi->scene = scene;
+	tgpi->ob = CTX_data_active_object(C);
+	tgpi->sa = CTX_wm_area(C);
+	tgpi->ar = CTX_wm_region(C);
+	tgpi->rv3d = tgpi->ar->regiondata;
+	tgpi->v3d = tgpi->sa->spacedata.first;
+	tgpi->depsgraph = CTX_data_depsgraph(C);
+	tgpi->win = CTX_wm_window(C);
+
+	/* set current frame number */
+	tgpi->cframe = cfra_eval;
+
+	/* set GP datablock */
+	tgpi->gpd = gpd;
+
+	/* getcolor info */
+	tgpi->mat = BKE_gpencil_material_ensure(bmain, tgpi->ob);
+
+	/* set parameters */
+	tgpi->type = RNA_enum_get(op->ptr, "type");
+
+	/* if circle set default to 32 */
+	if (tgpi->type == GP_STROKE_CIRCLE) {
+		RNA_int_set(op->ptr, "edges", 32);
+	}
+	else if (tgpi->type == GP_STROKE_BOX) {
+		RNA_int_set(op->ptr, "edges", 4);
+	}
+	else { /* LINE */
+		RNA_int_set(op->ptr, "edges", 2);
+	}
+
+	tgpi->tot_edges = RNA_int_get(op->ptr, "edges");
+	tgpi->flag = IDLE;
+
+	tgpi->lock_axis = ts->gp_sculpt.lock_axis;
+
+	/* set temp layer, frame and stroke */
+	gp_primitive_set_initdata(C, tgpi);
+}
+
+/* ----------------------- */
+
+/* Invoke handler: Initialize the operator */
+static int gpencil_primitive_invoke(bContext *C, wmOperator *op, const wmEvent *UNUSED(event))
+{
+	wmWindow *win = CTX_wm_window(C);
+	bGPdata *gpd = CTX_data_gpencil_data(C);
+	tGPDprimitive *tgpi = NULL;
+
+	/* initialize operator runtime data */
+	gpencil_primitive_init(C, op);
+	tgpi = op->customdata;
+
+	/* if in tools region, wait till we get to the main (3d-space)
+	 * region before allowing drawing to take place.
+	 */
+	op->flag |= OP_IS_MODAL_CURSOR_REGION;
+
+	/* Enable custom drawing handlers */
+	tgpi->draw_handle_3d = ED_region_draw_cb_activate(tgpi->ar->type, gpencil_primitive_draw_3d, tgpi, REGION_DRAW_POST_VIEW);
+
+	/* set cursor to indicate modal */
+	WM_cursor_modal_set(win, BC_CROSSCURSOR);
+
+	/* update sindicator in header */
+	gpencil_primitive_status_indicators(C, tgpi);
+	DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
+
+	/* add a modal handler for this operator */
+	WM_event_add_modal_handler(C, op);
+
+	return OPERATOR_RUNNING_MODAL;
+}
+
+/* Helper to complete a primitive */
+static void gpencil_primitive_done(bContext *C, wmOperator *op, wmWindow *win, tGPDprimitive *tgpi)
+{
+	bGPDframe *gpf;
+	bGPDstroke *gps;
+
+	/* return to normal cursor and header status */
+	ED_workspace_status_text(C, NULL);
+	WM_cursor_modal_restore(win);
+
+	/* insert keyframes as required... */
+	gpf = BKE_gpencil_layer_getframe(tgpi->gpl, tgpi->cframe, GP_GETFRAME_ADD_NEW);
+
+	/* prepare stroke to get transfered */
+	gps = tgpi->gpf->strokes.first;
+	if (gps) {
+		gps->thickness = tgpi->brush->size;
+		gps->flag |= GP_STROKE_RECALC_CACHES;
+	}
+
+	/* transfer stroke from temporary buffer to the actual frame */
+	BLI_movelisttolist(&gpf->strokes, &tgpi->gpf->strokes);
+	BLI_assert(BLI_listbase_is_empty(&tgpi->gpf->strokes));
+
+	/* clean up temp data */
+	gpencil_primitive_exit(C, op);
+}
+
+/* Modal handler: Events handling during interactive part */
+static int gpencil_primitive_modal(bContext *C, wmOperator *op, const wmEvent *event)
+{
+	tGPDprimitive *tgpi = op->customdata;
+	wmWindow *win = CTX_wm_window(C);
+	const bool has_numinput = hasNumInput(&tgpi->num);
+
+	switch (event->type) {
+		case LEFTMOUSE:
+			if ((event->val == KM_PRESS) && (tgpi->flag == IDLE)) {
+				/* start drawing primitive */
+				/* TODO: Ignore if not in main region yet */
+				tgpi->flag = IN_PROGRESS;
+
+				tgpi->top[0] = event->mval[0];
+				tgpi->top[1] = event->mval[1];
+
+				tgpi->bottom[0] = event->mval[0];
+				tgpi->bottom[1] = event->mval[1];
+			}
+			else if ((event->val == KM_RELEASE) && (tgpi->flag == IN_PROGRESS)) {
+				/* stop drawing primitive */
+				tgpi->flag = IDLE;
+				gpencil_primitive_done(C, op, win, tgpi);
+				/* done! */
+				return OPERATOR_FINISHED;
+			}
+			else {
+				if (G.debug & G_DEBUG) {
+					printf("GP Add Primitive Modal: LEFTMOUSE %d, Status = %d\n", event->val, tgpi->flag);
+				}
+			}
+			break;
+		case RETKEY:  /* confirm */
+		{
+			tgpi->flag = IDLE;
+			gpencil_primitive_done(C, op, win, tgpi);
+			/* done! */
+			return OPERATOR_FINISHED;
+		}
+
+		case ESCKEY:    /* cancel */
+		case RIGHTMOUSE:
+		{
+			/* return to normal cursor and header status */
+			ED_workspace_status_text(C, NULL);
+			WM_cursor_modal_restore(win);
+
+			/* clean up temp data */
+			gpencil_primitive_exit(C, op);
+
+			/* canceled! */
+			return OPERATOR_CANCELLED;
+		}
+
+		case WHEELUPMOUSE:
+		{
+			if (tgpi->type == GP_STROKE_CIRCLE) {
+				tgpi->tot_edges = tgpi->tot_edges + 1;
+				CLAMP(tgpi->tot_edges, MIN_EDGES, MAX_EDGES);
+				RNA_int_set(op->ptr, "edges", tgpi->tot_edges);
+
+				/* update screen */
+				gpencil_primitive_update(C, op, tgpi);
+			}
+			break;
+		}
+		case WHEELDOWNMOUSE:
+		{
+			if (tgpi->type == GP_STROKE_CIRCLE) {
+				tgpi->tot_edges = tgpi->tot_edges - 1;
+				CLAMP(tgpi->tot_edges, MIN_EDGES, MAX_EDGES);
+				RNA_int_set(op->ptr, "edges", tgpi->tot_edges);
+
+				/* update screen */
+				gpencil_primitive_update(C, op, tgpi);
+			}
+			break;
+		}
+		case MOUSEMOVE: /* calculate new position */
+		{
+			/* only handle mousemove if not doing numinput */
+			if (has_numinput == false) {
+				/* update position of mouse */
+				tgpi->bottom[0] = event->mval[0];
+				tgpi->bottom[1] = event->mval[1];
+				if (tgpi->flag == IDLE) {
+					tgpi->top[0] = event->mval[0];
+					tgpi->top[1] = event->mval[1];
+				}
+				/* Keep square if shift key */
+				if (event->shift) {
+					tgpi->bottom[1] = tgpi->top[1] - (tgpi->bottom[0] - tgpi->top[0]);
+				}
+				/* update screen */
+				gpencil_primitive_update(C, op, tgpi);
+			}
+			break;
+		}
+		default:
+		{
+			if ((event->val == KM_PRESS) && handleNumInput(C, &tgpi->num, event)) {
+				float value;
+
+				/* Grab data from numeric input, and store this new value (the user see an int) */
+				value = tgpi->tot_edges;
+				applyNumInput(&tgpi->num, &value);
+				tgpi->tot_edges = value;
+
+				CLAMP(tgpi->tot_edges, MIN_EDGES, MAX_EDGES);
+				RNA_int_set(op->ptr, "edges", tgpi->tot_edges);
+
+				/* update screen */
+				gpencil_primitive_update(C, op, tgpi);
+
+				break;
+			}
+			else {
+				/* unhandled event - allow to pass through */
+				return OPERATOR_RUNNING_MODAL | OPERATOR_PASS_THROUGH;
+			}
+		}
+	}
+
+	/* still running... */
+	return OPERATOR_RUNNING_MODAL;
+}
+
+/* Cancel handler */
+static void gpencil_primitive_cancel(bContext *C, wmOperator *op)
+{
+	/* this is just a wrapper around exit() */
+	gpencil_primitive_exit(C, op);
+}
+
+void GPENCIL_OT_primitive(wmOperatorType *ot)
+{
+	static EnumPropertyItem primitive_type[] = {
+		{ GP_STROKE_BOX, "BOX", 0, "Box", "" },
+		{ GP_STROKE_LINE, "LINE", 0, "Line", "" },
+		{ GP_STROKE_CIRCLE, "CIRCLE", 0, "Circle", "" },
+		{ 0, NULL, 0, NULL, NULL }
+	};
+
+	/* identifiers */
+	ot->name = "Grease Pencil Shapes";
+	ot->idname = "GPENCIL_OT_primitive";
+	ot->description = "Create predefined grease pencil stroke shapes";
+
+	/* callbacks */
+	ot->invoke = gpencil_primitive_invoke;
+	ot->modal = gpencil_primitive_modal;
+	ot->cancel = gpencil_primitive_cancel;
+	ot->poll = gpencil_primitive_add_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_UNDO | OPTYPE_BLOCKING;
+
+	/* properties */
+	RNA_def_int(ot->srna, "edges", 4, MIN_EDGES, MAX_EDGES, "Edges", "Number of polygon edges", MIN_EDGES, MAX_EDGES);
+	RNA_def_enum(ot->srna, "type", primitive_type, GP_STROKE_BOX, "Type", "Type of shape");
+}
+
+/* *************************************************************** */
diff --git a/source/blender/editors/gpencil/gpencil_select.c b/source/blender/editors/gpencil/gpencil_select.c
index dd556e99264..3e0caa8d5d8 100644
--- a/source/blender/editors/gpencil/gpencil_select.c
+++ b/source/blender/editors/gpencil/gpencil_select.c
@@ -43,6 +43,7 @@
 
 #include "DNA_gpencil_types.h"
 #include "DNA_scene_types.h"
+#include "DNA_space_types.h"
 #include "DNA_screen_types.h"
 #include "DNA_object_types.h"
 
@@ -62,6 +63,9 @@
 
 #include "ED_gpencil.h"
 
+#include "DEG_depsgraph.h"
+#include "DEG_depsgraph_query.h"
+
 #include "gpencil_intern.h"
 
 /* ********************************************** */
@@ -71,8 +75,8 @@ static bool gpencil_select_poll(bContext *C)
 {
 	bGPdata *gpd = ED_gpencil_data_get_active(C);
 
-	/* we just need some visible strokes, and to be in editmode */
-	if ((gpd) && (gpd->flag & GP_DATA_STROKE_EDITMODE)) {
+	/* we just need some visible strokes, and to be in editmode or other modes only to catch event */
+	if (GPENCIL_ANY_MODE(gpd)) {
 		/* TODO: include a check for visible strokes? */
 		if (gpd->layers.first)
 			return true;
@@ -94,6 +98,11 @@ static int gpencil_select_all_exec(bContext *C, wmOperator *op)
 		return OPERATOR_CANCELLED;
 	}
 
+	/* if not edit/sculpt mode, the event is catched but not processed */
+	if (GPENCIL_NONE_EDIT_MODE(gpd)) {
+		return OPERATOR_CANCELLED;
+	}
+
 	/* for "toggle", test for existing selected strokes */
 	if (action == SEL_TOGGLE) {
 		action = SEL_SELECT;
@@ -180,6 +189,11 @@ static int gpencil_select_all_exec(bContext *C, wmOperator *op)
 	}
 
 	/* updates */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
+	/* copy on write tag is needed, or else no refresh happens */
+	DEG_id_tag_update(&gpd->id, DEG_TAG_COPY_ON_WRITE);
+
 	WM_event_add_notifier(C, NC_GPENCIL | NA_SELECTED, NULL);
 	return OPERATOR_FINISHED;
 }
@@ -213,6 +227,11 @@ static int gpencil_select_linked_exec(bContext *C, wmOperator *op)
 		return OPERATOR_CANCELLED;
 	}
 
+	/* if not edit/sculpt mode, the event is catched but not processed */
+	if (GPENCIL_NONE_EDIT_MODE(gpd)) {
+		return OPERATOR_CANCELLED;
+	}
+
 	/* select all points in selected strokes */
 	CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
 	{
@@ -228,6 +247,11 @@ static int gpencil_select_linked_exec(bContext *C, wmOperator *op)
 	CTX_DATA_END;
 
 	/* updates */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
+	/* copy on write tag is needed, or else no refresh happens */
+	DEG_id_tag_update(&gpd->id, DEG_TAG_COPY_ON_WRITE);
+
 	WM_event_add_notifier(C, NC_GPENCIL | NA_SELECTED, NULL);
 	return OPERATOR_FINISHED;
 }
@@ -248,6 +272,86 @@ void GPENCIL_OT_select_linked(wmOperatorType *ot)
 }
 
 /* ********************************************** */
+/* Select Alternate */
+
+static int gpencil_select_alternate_exec(bContext *C, wmOperator *op)
+{
+	const bool unselect_ends = RNA_boolean_get(op->ptr, "unselect_ends");
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+
+	if (gpd == NULL) {
+		BKE_report(op->reports, RPT_ERROR, "No Grease Pencil data");
+		return OPERATOR_CANCELLED;
+	}
+
+	/* if not edit/sculpt mode, the event is catched but not processed */
+	if (GPENCIL_NONE_EDIT_MODE(gpd)) {
+		return OPERATOR_CANCELLED;
+	}
+
+	/* select all points in selected strokes */
+	CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
+	{
+		if ((gps->flag & GP_STROKE_SELECT) && (gps->totpoints > 1)) {
+			bGPDspoint *pt;
+			int row = 0;
+			int start = 0;
+			if (unselect_ends) {
+				start = 1;
+			}
+
+			for (int i = start; i < gps->totpoints; i++) {
+				pt = &gps->points[i];
+				if ((row % 2) == 0) {
+					pt->flag |= GP_SPOINT_SELECT;
+				}
+				else {
+					pt->flag &= ~GP_SPOINT_SELECT;
+				}
+				row++;
+			}
+
+			/* unselect start and end points */
+			if (unselect_ends) {
+				pt = &gps->points[0];
+				pt->flag &= ~GP_SPOINT_SELECT;
+
+				pt = &gps->points[gps->totpoints - 1];
+				pt->flag &= ~GP_SPOINT_SELECT;
+			}
+		}
+	}
+	CTX_DATA_END;
+
+	/* updates */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
+	/* copy on write tag is needed, or else no refresh happens */
+	DEG_id_tag_update(&gpd->id, DEG_TAG_COPY_ON_WRITE);
+
+	WM_event_add_notifier(C, NC_GPENCIL | NA_SELECTED, NULL);
+	return OPERATOR_FINISHED;
+}
+
+void GPENCIL_OT_select_alternate(wmOperatorType *ot)
+{
+	/* identifiers */
+	ot->name = "Alternated";
+	ot->idname = "GPENCIL_OT_select_alternate";
+	ot->description = "Select alternative points in same strokes as already selected points";
+
+	/* callbacks */
+	ot->exec = gpencil_select_alternate_exec;
+	ot->poll = gpencil_select_poll;
+
+	/* flags */
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+
+	/* properties */
+	RNA_def_boolean(ot->srna, "unselect_ends", true, "Unselect Ends", "Do not select the first and last point of the stroke");
+}
+
+/* ********************************************** */
 /* Select Grouped */
 
 typedef enum eGP_SelectGrouped {
@@ -266,11 +370,12 @@ typedef enum eGP_SelectGrouped {
 /* On each visible layer, check for selected strokes - if found, select all others */
 static void gp_select_same_layer(bContext *C)
 {
-	Scene *scene = CTX_data_scene(C);
+	Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	int cfra_eval = (int)DEG_get_ctime(depsgraph);
 
 	CTX_DATA_BEGIN(C, bGPDlayer *, gpl, editable_gpencil_layers)
 	{
-		bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, CFRA, 0);
+		bGPDframe *gpf = BKE_gpencil_layer_getframe(gpl, cfra_eval, 0);
 		bGPDstroke *gps;
 		bool found = false;
 
@@ -309,10 +414,7 @@ static void gp_select_same_layer(bContext *C)
 /* Select all strokes with same colors as selected ones */
 static void gp_select_same_color(bContext *C)
 {
-	/* First, build set containing all the colors of selected strokes
-	 * - We use the palette names, so that we can select all strokes with one
-	 *   (potentially missing) color, and remap them to something else
-	 */
+	/* First, build set containing all the colors of selected strokes */
 	GSet *selected_colors = BLI_gset_str_new("GP Selected Colors");
 
 	CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
@@ -321,7 +423,7 @@ static void gp_select_same_color(bContext *C)
 			/* add instead of insert here, otherwise the uniqueness check gets skipped,
 			 * and we get many duplicate entries...
 			 */
-			BLI_gset_add(selected_colors, gps->colorname);
+			BLI_gset_add(selected_colors, &gps->mat_nr);
 		}
 	}
 	CTX_DATA_END;
@@ -329,7 +431,7 @@ static void gp_select_same_color(bContext *C)
 	/* Second, select any visible stroke that uses these colors */
 	CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
 	{
-		if (BLI_gset_haskey(selected_colors, gps->colorname)) {
+		if (BLI_gset_haskey(selected_colors, &gps->mat_nr)) {
 			/* select this stroke */
 			bGPDspoint *pt;
 			int i;
@@ -342,6 +444,11 @@ static void gp_select_same_color(bContext *C)
 		}
 	}
 	CTX_DATA_END;
+
+	/* free memomy */
+	if (selected_colors != NULL) {
+		BLI_gset_free(selected_colors, NULL);
+	}
 }
 
 
@@ -350,6 +457,11 @@ static void gp_select_same_color(bContext *C)
 static int gpencil_select_grouped_exec(bContext *C, wmOperator *op)
 {
 	eGP_SelectGrouped mode = RNA_enum_get(op->ptr, "type");
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	/* if not edit/sculpt mode, the event is catched but not processed */
+	if (GPENCIL_NONE_EDIT_MODE(gpd)) {
+		return OPERATOR_CANCELLED;
+	}
 
 	switch (mode) {
 		case GP_SEL_SAME_LAYER:
@@ -365,6 +477,11 @@ static int gpencil_select_grouped_exec(bContext *C, wmOperator *op)
 	}
 
 	/* updates */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
+	/* copy on write tag is needed, or else no refresh happens */
+	DEG_id_tag_update(&gpd->id, DEG_TAG_COPY_ON_WRITE);
+
 	WM_event_add_notifier(C, NC_GPENCIL | NA_SELECTED, NULL);
 	return OPERATOR_FINISHED;
 }
@@ -399,6 +516,12 @@ void GPENCIL_OT_select_grouped(wmOperatorType *ot)
 
 static int gpencil_select_first_exec(bContext *C, wmOperator *op)
 {
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	/* if not edit/sculpt mode, the event is catched but not processed */
+	if (GPENCIL_NONE_EDIT_MODE(gpd)) {
+		return OPERATOR_CANCELLED;
+	}
+
 	const bool only_selected = RNA_boolean_get(op->ptr, "only_selected_strokes");
 	const bool extend = RNA_boolean_get(op->ptr, "extend");
 
@@ -429,6 +552,11 @@ static int gpencil_select_first_exec(bContext *C, wmOperator *op)
 	CTX_DATA_END;
 
 	/* updates */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
+	/* copy on write tag is needed, or else no refresh happens */
+	DEG_id_tag_update(&gpd->id, DEG_TAG_COPY_ON_WRITE);
+
 	WM_event_add_notifier(C, NC_GPENCIL | NA_SELECTED, NULL);
 	return OPERATOR_FINISHED;
 }
@@ -459,6 +587,12 @@ void GPENCIL_OT_select_first(wmOperatorType *ot)
 
 static int gpencil_select_last_exec(bContext *C, wmOperator *op)
 {
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	/* if not edit/sculpt mode, the event is catched but not processed */
+	if (GPENCIL_NONE_EDIT_MODE(gpd)) {
+		return OPERATOR_CANCELLED;
+	}
+
 	const bool only_selected = RNA_boolean_get(op->ptr, "only_selected_strokes");
 	const bool extend = RNA_boolean_get(op->ptr, "extend");
 
@@ -489,6 +623,11 @@ static int gpencil_select_last_exec(bContext *C, wmOperator *op)
 	CTX_DATA_END;
 
 	/* updates */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
+	/* copy on write tag is needed, or else no refresh happens */
+	DEG_id_tag_update(&gpd->id, DEG_TAG_COPY_ON_WRITE);
+
 	WM_event_add_notifier(C, NC_GPENCIL | NA_SELECTED, NULL);
 	return OPERATOR_FINISHED;
 }
@@ -519,6 +658,12 @@ void GPENCIL_OT_select_last(wmOperatorType *ot)
 
 static int gpencil_select_more_exec(bContext *C, wmOperator *UNUSED(op))
 {
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	/* if not edit/sculpt mode, the event is catched but not processed */
+	if (GPENCIL_NONE_EDIT_MODE(gpd)) {
+		return OPERATOR_CANCELLED;
+	}
+
 	CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
 	{
 		if (gps->flag & GP_STROKE_SELECT) {
@@ -565,6 +710,11 @@ static int gpencil_select_more_exec(bContext *C, wmOperator *UNUSED(op))
 	CTX_DATA_END;
 
 	/* updates */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
+	/* copy on write tag is needed, or else no refresh happens */
+	DEG_id_tag_update(&gpd->id, DEG_TAG_COPY_ON_WRITE);
+
 	WM_event_add_notifier(C, NC_GPENCIL | NA_SELECTED, NULL);
 	return OPERATOR_FINISHED;
 }
@@ -589,6 +739,12 @@ void GPENCIL_OT_select_more(wmOperatorType *ot)
 
 static int gpencil_select_less_exec(bContext *C, wmOperator *UNUSED(op))
 {
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	/* if not edit/sculpt mode, the event is catched but not processed */
+	if (GPENCIL_NONE_EDIT_MODE(gpd)) {
+		return OPERATOR_CANCELLED;
+	}
+
 	CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
 	{
 		if (gps->flag & GP_STROKE_SELECT) {
@@ -636,6 +792,11 @@ static int gpencil_select_less_exec(bContext *C, wmOperator *UNUSED(op))
 	CTX_DATA_END;
 
 	/* updates */
+	DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
+	/* copy on write tag is needed, or else no refresh happens */
+	DEG_id_tag_update(&gpd->id, DEG_TAG_COPY_ON_WRITE);
+
 	WM_event_add_notifier(C, NC_GPENCIL | NA_SELECTED, NULL);
 	return OPERATOR_FINISHED;
 }
@@ -665,7 +826,7 @@ void GPENCIL_OT_select_less(wmOperatorType *ot)
 static bool gp_stroke_do_circle_sel(
         bGPDstroke *gps, GP_SpaceConversion *gsc,
         const int mx, const int my, const int radius,
-        const bool select, rcti *rect, const bool parented, float diff_mat[4][4])
+        const bool select, rcti *rect, float diff_mat[4][4])
 {
 	bGPDspoint *pt1, *pt2;
 	int x0 = 0, y0 = 0, x1 = 0, y1 = 0;
@@ -673,14 +834,9 @@ static bool gp_stroke_do_circle_sel(
 	bool changed = false;
 
 	if (gps->totpoints == 1) {
-		if (!parented) {
-			gp_point_to_xy(gsc, gps, gps->points, &x0, &y0);
-		}
-		else {
-			bGPDspoint pt_temp;
-			gp_point_to_parent_space(gps->points, diff_mat, &pt_temp);
-			gp_point_to_xy(gsc, gps, &pt_temp, &x0, &y0);
-		}
+		bGPDspoint pt_temp;
+		gp_point_to_parent_space(gps->points, diff_mat, &pt_temp);
+		gp_point_to_xy(gsc, gps, &pt_temp, &x0, &y0);
 
 		/* do boundbox check first */
 		if ((!ELEM(V2D_IS_CLIPPED, x0, y0)) && BLI_rcti_isect_pt(rect, x0, y0)) {
@@ -708,18 +864,12 @@ static bool gp_stroke_do_circle_sel(
 			/* get points to work with */
 			pt1 = gps->points + i;
 			pt2 = gps->points + i + 1;
-			if (!parented) {
-				gp_point_to_xy(gsc, gps, pt1, &x0, &y0);
-				gp_point_to_xy(gsc, gps, pt2, &x1, &y1);
-			}
-			else {
-				bGPDspoint npt;
-				gp_point_to_parent_space(pt1, diff_mat, &npt);
-				gp_point_to_xy(gsc, gps, &npt, &x0, &y0);
+			bGPDspoint npt;
+			gp_point_to_parent_space(pt1, diff_mat, &npt);
+			gp_point_to_xy(gsc, gps, &npt, &x0, &y0);
 
-				gp_point_to_parent_space(pt2, diff_mat, &npt);
-				gp_point_to_xy(gsc, gps, &npt, &x1, &y1);
-			}
+			gp_point_to_parent_space(pt2, diff_mat, &npt);
+			gp_point_to_xy(gsc, gps, &npt, &x1, &y1);
 
 			/* check that point segment of the boundbox of the selection stroke */
 			if (((!ELEM(V2D_IS_CLIPPED, x0, y0)) && BLI_rcti_isect_pt(rect, x0, y0)) ||
@@ -763,6 +913,12 @@ static bool gp_stroke_do_circle_sel(
 
 static int gpencil_circle_select_exec(bContext *C, wmOperator *op)
 {
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	/* if not edit/sculpt mode, the event is catched but not processed */
+	if (GPENCIL_NONE_EDIT_MODE(gpd)) {
+		return OPERATOR_CANCELLED;
+	}
+
 	ScrArea *sa = CTX_wm_area(C);
 
 	const int mx = RNA_int_get(op->ptr, "x");
@@ -798,13 +954,17 @@ static int gpencil_circle_select_exec(bContext *C, wmOperator *op)
 	GP_EDITABLE_STROKES_BEGIN(C, gpl, gps)
 	{
 		changed |= gp_stroke_do_circle_sel(
-			gps, &gsc, mx, my, radius, select, &rect,
-			(gpl->parent != NULL), diff_mat);
+			gps, &gsc, mx, my, radius, select, &rect, diff_mat);
 	}
 	GP_EDITABLE_STROKES_END;
 
 	/* updates */
 	if (changed) {
+		DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
+		/* copy on write tag is needed, or else no refresh happens */
+		DEG_id_tag_update(&gpd->id, DEG_TAG_COPY_ON_WRITE);
+
 		WM_event_add_notifier(C, NC_GPENCIL | NA_SELECTED, NULL);
 	}
 
@@ -826,7 +986,7 @@ void GPENCIL_OT_select_circle(wmOperatorType *ot)
 	ot->cancel = WM_gesture_circle_cancel;
 
 	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_USE_EVAL_DATA;
 
 	/* properties */
 	WM_operator_properties_gesture_circle_select(ot);
@@ -837,10 +997,11 @@ void GPENCIL_OT_select_circle(wmOperatorType *ot)
 
 static int gpencil_border_select_exec(bContext *C, wmOperator *op)
 {
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
 	ScrArea *sa = CTX_wm_area(C);
 
 	const bool select = !RNA_boolean_get(op->ptr, "deselect");
-	const bool extend = RNA_boolean_get(op->ptr, "extend");
+	const bool extend = RNA_boolean_get(op->ptr, "extend") && ((gpd->flag & GP_DATA_STROKE_PAINTMODE) == 0);
 
 	GP_SpaceConversion gsc = {NULL};
 	rcti rect = {0};
@@ -888,14 +1049,9 @@ static int gpencil_border_select_exec(bContext *C, wmOperator *op)
 			int x0, y0;
 
 			/* convert point coords to screenspace */
-			if (gpl->parent == NULL) {
-				gp_point_to_xy(&gsc, gps, pt, &x0, &y0);
-			}
-			else {
-				bGPDspoint pt2;
-				gp_point_to_parent_space(pt, diff_mat, &pt2);
-				gp_point_to_xy(&gsc, gps, &pt2, &x0, &y0);
-			}
+			bGPDspoint pt2;
+			gp_point_to_parent_space(pt, diff_mat, &pt2);
+			gp_point_to_xy(&gsc, gps, &pt2, &x0, &y0);
 
 			/* test if in selection rect */
 			if ((!ELEM(V2D_IS_CLIPPED, x0, y0)) && BLI_rcti_isect_pt(&rect, x0, y0)) {
@@ -915,8 +1071,20 @@ static int gpencil_border_select_exec(bContext *C, wmOperator *op)
 	}
 	GP_EDITABLE_STROKES_END;
 
+	/* if paint mode,delete selected points */
+	if (gpd->flag & GP_DATA_STROKE_PAINTMODE) {
+		gp_delete_selected_point_wrap(C);
+		changed = true;
+		DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	}
+
 	/* updates */
 	if (changed) {
+		DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
+		/* copy on write tag is needed, or else no refresh happens */
+		DEG_id_tag_update(&gpd->id, DEG_TAG_COPY_ON_WRITE);
+
 		WM_event_add_notifier(C, NC_GPENCIL | NA_SELECTED, NULL);
 	}
 
@@ -939,7 +1107,7 @@ void GPENCIL_OT_select_border(wmOperatorType *ot)
 	ot->poll = gpencil_select_poll;
 
 	/* flags */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_USE_EVAL_DATA;
 
 	/* rna */
 	WM_operator_properties_gesture_border_select(ot);
@@ -950,10 +1118,11 @@ void GPENCIL_OT_select_border(wmOperatorType *ot)
 
 static int gpencil_lasso_select_exec(bContext *C, wmOperator *op)
 {
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
 	GP_SpaceConversion gsc = {NULL};
 	rcti rect = {0};
 
-	const bool extend = RNA_boolean_get(op->ptr, "extend");
+	const bool extend = RNA_boolean_get(op->ptr, "extend") && ((gpd->flag & GP_DATA_STROKE_PAINTMODE) == 0);
 	const bool select = !RNA_boolean_get(op->ptr, "deselect");
 
 	int mcords_tot;
@@ -997,14 +1166,9 @@ static int gpencil_lasso_select_exec(bContext *C, wmOperator *op)
 			int x0, y0;
 
 			/* convert point coords to screenspace */
-			if (gpl->parent == NULL) {
-				gp_point_to_xy(&gsc, gps, pt, &x0, &y0);
-			}
-			else {
-				bGPDspoint pt2;
-				gp_point_to_parent_space(pt, diff_mat, &pt2);
-				gp_point_to_xy(&gsc, gps, &pt2, &x0, &y0);
-			}
+			bGPDspoint pt2;
+			gp_point_to_parent_space(pt, diff_mat, &pt2);
+			gp_point_to_xy(&gsc, gps, &pt2, &x0, &y0);
 			/* test if in lasso boundbox + within the lasso noose */
 			if ((!ELEM(V2D_IS_CLIPPED, x0, y0)) && BLI_rcti_isect_pt(&rect, x0, y0) &&
 			    BLI_lasso_is_point_inside(mcords, mcords_tot, x0, y0, INT_MAX))
@@ -1028,8 +1192,20 @@ static int gpencil_lasso_select_exec(bContext *C, wmOperator *op)
 	/* cleanup */
 	MEM_freeN((void *)mcords);
 
+	/* if paint mode,delete selected points */
+	if (gpd->flag & GP_DATA_STROKE_PAINTMODE) {
+		gp_delete_selected_point_wrap(C);
+		changed = true;
+		DEG_id_tag_update(&gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+	}
+
 	/* updates */
 	if (changed) {
+		DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
+		/* copy on write tag is needed, or else no refresh happens */
+		DEG_id_tag_update(&gpd->id, DEG_TAG_COPY_ON_WRITE);
+
 		WM_event_add_notifier(C, NC_GPENCIL | NA_SELECTED, NULL);
 	}
 
@@ -1049,7 +1225,7 @@ void GPENCIL_OT_select_lasso(wmOperatorType *ot)
 	ot->cancel = WM_gesture_lasso_cancel;
 
 	/* flags */
-	ot->flag = OPTYPE_UNDO;
+	ot->flag = OPTYPE_UNDO | OPTYPE_USE_EVAL_DATA;
 
 	/* properties */
 	WM_operator_properties_gesture_lasso_select(ot);
@@ -1061,6 +1237,7 @@ void GPENCIL_OT_select_lasso(wmOperatorType *ot)
 static int gpencil_select_exec(bContext *C, wmOperator *op)
 {
 	ScrArea *sa = CTX_wm_area(C);
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
 
 	/* "radius" is simply a threshold (screen space) to make it easier to test with a tolerance */
 	const float radius = 0.75f * U.widget_unit;
@@ -1102,14 +1279,9 @@ static int gpencil_select_exec(bContext *C, wmOperator *op)
 		for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
 			int xy[2];
 
-			if (gpl->parent == NULL) {
-				gp_point_to_xy(&gsc, gps, pt, &xy[0], &xy[1]);
-			}
-			else {
-				bGPDspoint pt2;
-				gp_point_to_parent_space(pt, diff_mat, &pt2);
-				gp_point_to_xy(&gsc, gps, &pt2, &xy[0], &xy[1]);
-			}
+			bGPDspoint pt2;
+			gp_point_to_parent_space(pt, diff_mat, &pt2);
+			gp_point_to_xy(&gsc, gps, &pt2, &xy[0], &xy[1]);
 
 			/* do boundbox check first */
 			if (!ELEM(V2D_IS_CLIPPED, xy[0], xy[1])) {
@@ -1197,6 +1369,11 @@ static int gpencil_select_exec(bContext *C, wmOperator *op)
 
 	/* updates */
 	if (hit_point != NULL) {
+		DEG_id_tag_update(&gpd->id, OB_RECALC_DATA);
+
+		/* copy on write tag is needed, or else no refresh happens */
+		DEG_id_tag_update(&gpd->id, DEG_TAG_COPY_ON_WRITE);
+
 		WM_event_add_notifier(C, NC_GPENCIL | NA_SELECTED, NULL);
 	}
 
@@ -1224,7 +1401,7 @@ void GPENCIL_OT_select(wmOperatorType *ot)
 	ot->poll = gpencil_select_poll;
 
 	/* flag */
-	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO;
+	ot->flag = OPTYPE_REGISTER | OPTYPE_UNDO | OPTYPE_USE_EVAL_DATA;
 
 	/* properties */
 	WM_operator_properties_mouse_select(ot);
diff --git a/source/blender/editors/gpencil/gpencil_undo.c b/source/blender/editors/gpencil/gpencil_undo.c
index d35df8bc380..708d8f37e58 100644
--- a/source/blender/editors/gpencil/gpencil_undo.c
+++ b/source/blender/editors/gpencil/gpencil_undo.c
@@ -36,6 +36,7 @@
 #include "MEM_guardedalloc.h"
 
 #include "DNA_gpencil_types.h"
+#include "DNA_object_types.h"
 #include "DNA_listBase.h"
 #include "DNA_windowmanager_types.h"
 
@@ -51,6 +52,8 @@
 #include "WM_api.h"
 #include "WM_types.h"
 
+#include "DEG_depsgraph.h"
+
 #include "gpencil_intern.h"
 
 typedef struct bGPundonode {
@@ -111,6 +114,9 @@ int ED_undo_gpencil_step(bContext *C, int step, const char *name)
 				}
 			}
 		}
+		/* drawing batch cache is dirty now */
+		DEG_id_tag_update(&new_gpd->id, OB_RECALC_OB | OB_RECALC_DATA);
+		new_gpd->flag |= GP_DATA_CACHE_IS_DIRTY;
 	}
 
 	WM_event_add_notifier(C, NC_GPENCIL | NA_EDITED, NULL);
diff --git a/source/blender/editors/gpencil/gpencil_utils.c b/source/blender/editors/gpencil/gpencil_utils.c
index 8b65855f7c4..cd352579b4a 100644
--- a/source/blender/editors/gpencil/gpencil_utils.c
+++ b/source/blender/editors/gpencil/gpencil_utils.c
@@ -40,7 +40,9 @@
 #include "BLT_translation.h"
 #include "BLI_rand.h"
 
+#include "DNA_meshdata_types.h"
 #include "DNA_gpencil_types.h"
+#include "DNA_brush_types.h"
 #include "DNA_object_types.h"
 #include "DNA_scene_types.h"
 #include "DNA_screen_types.h"
@@ -48,9 +50,13 @@
 #include "DNA_view3d_types.h"
 
 #include "BKE_action.h"
+#include "BKE_main.h"
+#include "BKE_brush.h"
 #include "BKE_context.h"
 #include "BKE_gpencil.h"
-#include "BKE_main.h"
+#include "BKE_object.h"
+#include "BKE_paint.h"
+#include "BKE_material.h"
 #include "BKE_tracking.h"
 
 #include "WM_api.h"
@@ -65,8 +71,14 @@
 #include "ED_gpencil.h"
 #include "ED_clip.h"
 #include "ED_view3d.h"
+#include "ED_object.h"
+#include "ED_screen.h"
+
+#include "GPU_immediate.h"
+#include "GPU_immediate_util.h"
 
 #include "DEG_depsgraph.h"
+#include "DEG_depsgraph_query.h"
 
 #include "gpencil_intern.h"
 
@@ -76,7 +88,7 @@
 /* Get pointer to active Grease Pencil datablock, and an RNA-pointer to trace back to whatever owns it,
  * when context info is not available.
  */
-bGPdata **ED_gpencil_data_get_pointers_direct(ID *screen_id, Scene *scene, ScrArea *sa, Object *ob, PointerRNA *ptr)
+bGPdata **ED_gpencil_data_get_pointers_direct(ID *screen_id, ScrArea *sa, Scene *scene, Object *ob, PointerRNA *r_ptr)
 {
 	/* if there's an active area, check if the particular editor may
 	 * have defined any special Grease Pencil context for editing...
@@ -85,26 +97,37 @@ bGPdata **ED_gpencil_data_get_pointers_direct(ID *screen_id, Scene *scene, ScrAr
 		SpaceLink *sl = sa->spacedata.first;
 
 		switch (sa->spacetype) {
-			case SPACE_VIEW3D: /* 3D-View */
+			/* XXX: Should we reduce reliance on context.gpencil_data for these cases? */
+			case SPACE_BUTS: /* properties */
+			case SPACE_INFO: /* header info (needed after workspaces merge) */
 			{
-				BLI_assert(scene && ELEM(scene->toolsettings->gpencil_src,
-				                         GP_TOOL_SOURCE_SCENE, GP_TOOL_SOURCE_OBJECT));
+				if (ob && (ob->type == OB_GPENCIL)) {
+					/* GP Object */
+					if (r_ptr) RNA_id_pointer_create(&ob->id, r_ptr);
+					return (bGPdata **)&ob->data;
+				}
+				else {
+					return NULL;
+				}
 
-				if (scene->toolsettings->gpencil_src == GP_TOOL_SOURCE_OBJECT) {
-					/* legacy behaviour for usage with old addons requiring object-linked to objects */
+				break;
+			}
 
-					/* just in case no active/selected object... */
-					if (ob && (ob->flag & SELECT)) {
-						/* for now, as long as there's an object, default to using that in 3D-View */
-						if (ptr) RNA_id_pointer_create(&ob->id, ptr);
-						return &ob->gpd;
-					}
-					/* else: defaults to scene... */
+			case SPACE_TOPBAR: /* Topbar (needed after topbar merge) */
+			case SPACE_VIEW3D: /* 3D-View */
+			{
+				if (ob && (ob->type == OB_GPENCIL)) {
+					/* GP Object */
+					if (r_ptr) RNA_id_pointer_create(&ob->id, r_ptr);
+					return (bGPdata **)&ob->data;
 				}
 				else {
-					if (ptr) RNA_id_pointer_create(&scene->id, ptr);
+					/* Annotations */
+					/* XXX: */
+					if (r_ptr) RNA_id_pointer_create(&scene->id, r_ptr);
 					return &scene->gpd;
 				}
+
 				break;
 			}
 			case SPACE_NODE: /* Nodes Editor */
@@ -114,7 +137,7 @@ bGPdata **ED_gpencil_data_get_pointers_direct(ID *screen_id, Scene *scene, ScrAr
 				/* return the GP data for the active node block/node */
 				if (snode && snode->nodetree) {
 					/* for now, as long as there's an active node tree, default to using that in the Nodes Editor */
-					if (ptr) RNA_id_pointer_create(&snode->nodetree->id, ptr);
+					if (r_ptr) RNA_id_pointer_create(&snode->nodetree->id, r_ptr);
 					return &snode->nodetree->gpd;
 				}
 
@@ -127,7 +150,7 @@ bGPdata **ED_gpencil_data_get_pointers_direct(ID *screen_id, Scene *scene, ScrAr
 
 				/* for now, Grease Pencil data is associated with the space (actually preview region only) */
 				/* XXX our convention for everything else is to link to data though... */
-				if (ptr) RNA_pointer_create(screen_id, &RNA_SpaceSequenceEditor, sseq, ptr);
+				if (r_ptr) RNA_pointer_create(screen_id, &RNA_SpaceSequenceEditor, sseq, r_ptr);
 				return &sseq->gpd;
 			}
 			case SPACE_IMAGE: /* Image/UV Editor */
@@ -136,7 +159,7 @@ bGPdata **ED_gpencil_data_get_pointers_direct(ID *screen_id, Scene *scene, ScrAr
 
 				/* for now, Grease Pencil data is associated with the space... */
 				/* XXX our convention for everything else is to link to data though... */
-				if (ptr) RNA_pointer_create(screen_id, &RNA_SpaceImageEditor, sima, ptr);
+				if (r_ptr) RNA_pointer_create(screen_id, &RNA_SpaceImageEditor, sima, r_ptr);
 				return &sima->gpd;
 			}
 			case SPACE_CLIP: /* Nodes Editor */
@@ -151,15 +174,11 @@ bGPdata **ED_gpencil_data_get_pointers_direct(ID *screen_id, Scene *scene, ScrAr
 						if (!track)
 							return NULL;
 
-						if (ptr)
-							RNA_pointer_create(&clip->id, &RNA_MovieTrackingTrack, track, ptr);
-
+						if (r_ptr) RNA_pointer_create(&clip->id, &RNA_MovieTrackingTrack, track, r_ptr);
 						return &track->gpd;
 					}
 					else {
-						if (ptr)
-							RNA_id_pointer_create(&clip->id, ptr);
-
+						if (r_ptr) RNA_id_pointer_create(&clip->id, r_ptr);
 						return &clip->gpd;
 					}
 				}
@@ -170,79 +189,102 @@ bGPdata **ED_gpencil_data_get_pointers_direct(ID *screen_id, Scene *scene, ScrAr
 		}
 	}
 
-	/* just fall back on the scene's GP data */
-	if (ptr) RNA_id_pointer_create((ID *)scene, ptr);
-	return (scene) ? &scene->gpd : NULL;
+	return NULL;
 }
 
 /* Get pointer to active Grease Pencil datablock, and an RNA-pointer to trace back to whatever owns it */
-bGPdata **ED_gpencil_data_get_pointers(const bContext *C, PointerRNA *ptr)
+bGPdata **ED_gpencil_data_get_pointers(const bContext *C, PointerRNA *r_ptr)
 {
 	ID *screen_id = (ID *)CTX_wm_screen(C);
 	Scene *scene = CTX_data_scene(C);
 	ScrArea *sa = CTX_wm_area(C);
 	Object *ob = CTX_data_active_object(C);
 
-	return ED_gpencil_data_get_pointers_direct(screen_id, scene, sa, ob, ptr);
+	return ED_gpencil_data_get_pointers_direct(screen_id, sa, scene, ob, r_ptr);
 }
 
 /* -------------------------------------------------------- */
 
 /* Get the active Grease Pencil datablock, when context is not available */
-bGPdata *ED_gpencil_data_get_active_direct(ID *screen_id, Scene *scene, ScrArea *sa, Object *ob)
+bGPdata *ED_gpencil_data_get_active_direct(ID *screen_id, ScrArea *sa, Scene *scene, Object *ob)
 {
-	bGPdata **gpd_ptr = ED_gpencil_data_get_pointers_direct(screen_id, scene, sa, ob, NULL);
+	bGPdata **gpd_ptr = ED_gpencil_data_get_pointers_direct(screen_id, sa, scene, ob, NULL);
 	return (gpd_ptr) ? *(gpd_ptr) : NULL;
 }
 
-/* Get the active Grease Pencil datablock */
+/**
+ * Get the active Grease Pencil datablock
+ * \note This is the original (bmain) copy of the datablock, stored in files.
+ *       Do not use for reading evaluated copies of GP Objects data
+ */
 bGPdata *ED_gpencil_data_get_active(const bContext *C)
 {
 	bGPdata **gpd_ptr = ED_gpencil_data_get_pointers(C, NULL);
 	return (gpd_ptr) ? *(gpd_ptr) : NULL;
 }
 
+/**
+ * Get the evaluated copy of the active Grease Pencil datablock (where applicable)
+ * - For the 3D View (i.e. "GP Objects"), this gives the evaluated copy of the GP datablock
+ *   (i.e. a copy of the active GP datablock for the active object, where modifiers have been
+ *   applied). This is needed to correctly work with "Copy-on-Write"
+ * - For all other editors (i.e. "GP Annotations"), this just gives the active datablock
+ *   like for ED_gpencil_data_get_active()
+ */
+bGPdata *ED_gpencil_data_get_active_evaluated(const bContext *C)
+{
+	ID *screen_id = (ID *)CTX_wm_screen(C);
+	ScrArea *sa = CTX_wm_area(C);
+
+	const Depsgraph *depsgraph = CTX_data_depsgraph(C);
+	Scene *scene_eval = DEG_get_evaluated_scene(depsgraph);
+	Object *ob = CTX_data_active_object(C);
+	Object *ob_eval = DEG_get_evaluated_object(depsgraph, ob);
+
+	/* if (ob && ob->type == OB_GPENCIL) BLI_assert(ob_eval->data == DEG_get_evaluated_id(ob->data)); */
+	return ED_gpencil_data_get_active_direct(screen_id, sa, scene_eval, ob_eval);
+}
+
+/* -------------------------------------------------------- */
+
+/**
+ * Utility to check whether the r_ptr output of ED_gpencil_data_get_pointers()
+ * is for annotation usage.
+ */
+bool ED_gpencil_data_owner_is_annotation(PointerRNA *owner_ptr)
+{
+	/* Key Assumption: If the pointer is an object, we're dealing with a GP Object's data.
+	 * Otherwise, the GP datablock is being used for annotations (i.e. everywhere else)
+	 */
+	return ((owner_ptr) && (owner_ptr->type != &RNA_Object));
+}
+
 /* -------------------------------------------------------- */
 
 // XXX: this should be removed... We really shouldn't duplicate logic like this!
-bGPdata *ED_gpencil_data_get_active_v3d(Scene *scene, ViewLayer *view_layer)
+bGPdata *ED_gpencil_data_get_active_v3d(ViewLayer *view_layer)
 {
 	Base *base = view_layer->basact;
 	bGPdata *gpd = NULL;
+
 	/* We have to make sure active object is actually visible and selected, else we must use default scene gpd,
 	 * to be consistent with ED_gpencil_data_get_active's behavior.
 	 */
-
 	if (base && TESTBASE(base)) {
-		gpd = base->object->gpd;
+		if (base->object->type == OB_GPENCIL)
+			gpd = base->object->data;
 	}
-	return gpd ? gpd : scene->gpd;
+	return gpd ? gpd : NULL;
 }
 
 /* ******************************************************** */
 /* Keyframe Indicator Checks */
 
 /* Check whether there's an active GP keyframe on the current frame */
-bool ED_gpencil_has_keyframe_v3d(Scene *scene, Object *ob, int cfra)
+bool ED_gpencil_has_keyframe_v3d(Scene *UNUSED(scene), Object *ob, int cfra)
 {
-	/* just check both for now... */
-	// XXX: this could get confusing (e.g. if only on the object, but other places don't show this)
-	if (scene->gpd) {
-		bGPDlayer *gpl = BKE_gpencil_layer_getactive(scene->gpd);
-		if (gpl) {
-			if (gpl->actframe) {
-				// XXX: assumes that frame has been fetched already
-				return (gpl->actframe->framenum == cfra);
-			}
-			else {
-				/* XXX: disabled as could be too much of a penalty */
-				/* return BKE_gpencil_layer_find_frame(gpl, cfra); */
-			}
-		}
-	}
-
-	if (ob && ob->gpd) {
-		bGPDlayer *gpl = BKE_gpencil_layer_getactive(ob->gpd);
+	if (ob && ob->data && (ob->type == OB_GPENCIL)) {
+		bGPDlayer *gpl = BKE_gpencil_layer_getactive(ob->data);
 		if (gpl) {
 			if (gpl->actframe) {
 				// XXX: assumes that frame has been fetched already
@@ -281,28 +323,13 @@ bool gp_active_layer_poll(bContext *C)
 bool gp_active_brush_poll(bContext *C)
 {
 	ToolSettings *ts = CTX_data_tool_settings(C);
-	bGPDbrush *brush = BKE_gpencil_brush_getactive(ts);
-
-	return (brush != NULL);
-}
-
-/* poll callback for checking if there is an active palette */
-bool gp_active_palette_poll(bContext *C)
-{
-	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-
-	return (palette != NULL);
-}
-
-/* poll callback for checking if there is an active palette color */
-bool gp_active_palettecolor_poll(bContext *C)
-{
-	bGPdata *gpd = ED_gpencil_data_get_active(C);
-	bGPDpalette *palette = BKE_gpencil_palette_getactive(gpd);
-	bGPDpalettecolor *palcolor = BKE_gpencil_palettecolor_getactive(palette);
-
-	return (palcolor != NULL);
+	Paint *paint = &ts->gp_paint->paint;
+	if (paint) {
+		return (paint->brush != NULL);
+	}
+	else {
+		return false;
+	}
 }
 
 /* ******************************************************** */
@@ -360,7 +387,7 @@ const EnumPropertyItem *ED_gpencil_layers_with_new_enum_itemf(
 	/* Create new layer */
 	/* TODO: have some way of specifying that we don't want this? */
 	{
-		/* active Keying Set */
+		/* "New Layer" entry */
 		item_tmp.identifier = "__CREATE__";
 		item_tmp.name = "New Layer";
 		item_tmp.value = -1;
@@ -392,7 +419,6 @@ const EnumPropertyItem *ED_gpencil_layers_with_new_enum_itemf(
 }
 
 
-
 /* ******************************************************** */
 /* Brush Tool Core */
 
@@ -426,7 +452,7 @@ bool gp_stroke_inside_circle(const int mval[2], const int UNUSED(mvalo[2]),
 /* Stroke Validity Testing */
 
 /* Check whether given stroke can be edited given the supplied context */
-// XXX: do we need additional flags for screenspace vs dataspace?
+/* TODO: do we need additional flags for screenspace vs dataspace? */
 bool ED_gpencil_stroke_can_use_direct(const ScrArea *sa, const bGPDstroke *gps)
 {
 	/* sanity check */
@@ -436,7 +462,7 @@ bool ED_gpencil_stroke_can_use_direct(const ScrArea *sa, const bGPDstroke *gps)
 	/* filter stroke types by flags + spacetype */
 	if (gps->flag & GP_STROKE_3DSPACE) {
 		/* 3D strokes - only in 3D view */
-		return (sa->spacetype == SPACE_VIEW3D);
+		return ((sa->spacetype == SPACE_VIEW3D) || (sa->spacetype == SPACE_BUTS));
 	}
 	else if (gps->flag & GP_STROKE_2DIMAGE) {
 		/* Special "image" strokes - only in Image Editor */
@@ -460,59 +486,21 @@ bool ED_gpencil_stroke_can_use(const bContext *C, const bGPDstroke *gps)
 }
 
 /* Check whether given stroke can be edited for the current color */
-bool ED_gpencil_stroke_color_use(const bGPDlayer *gpl, const bGPDstroke *gps)
+bool ED_gpencil_stroke_color_use(Object *ob, const bGPDlayer *gpl, const bGPDstroke *gps)
 {
 	/* check if the color is editable */
-	bGPDpalettecolor *palcolor = gps->palcolor;
-	if (palcolor != NULL) {
-		if (palcolor->flag & PC_COLOR_HIDE)
+	MaterialGPencilStyle *gp_style = BKE_material_gpencil_settings_get(ob, gps->mat_nr + 1);
+
+	if (gp_style != NULL) {
+		if (gp_style->flag & GP_STYLE_COLOR_HIDE)
 			return false;
-		if (((gpl->flag & GP_LAYER_UNLOCK_COLOR) == 0) && (palcolor->flag & PC_COLOR_LOCKED))
+		if (((gpl->flag & GP_LAYER_UNLOCK_COLOR) == 0) && (gp_style->flag & GP_STYLE_COLOR_LOCKED))
 			return false;
 	}
 
 	return true;
 }
 
-/* Get palette color or create a new one */
-bGPDpalettecolor *ED_gpencil_stroke_getcolor(bGPdata *gpd, bGPDstroke *gps)
-{
-	bGPDpalette *palette;
-	bGPDpalettecolor *palcolor;
-
-	if ((gps->palcolor != NULL) && ((gps->flag & GP_STROKE_RECALC_COLOR) == 0))
-		return gps->palcolor;
-
-	/* get palette */
-	palette = BKE_gpencil_palette_getactive(gpd);
-	if (palette == NULL) {
-		palette = BKE_gpencil_palette_addnew(gpd, DATA_("GP_Palette"), true);
-	}
-	/* get color */
-	palcolor = BKE_gpencil_palettecolor_getbyname(palette, gps->colorname);
-	if (palcolor == NULL) {
-		if (gps->palcolor == NULL) {
-			palcolor = BKE_gpencil_palettecolor_addnew(palette, DATA_("Color"), true);
-			/* set to a different color */
-			ARRAY_SET_ITEMS(palcolor->color, 1.0f, 0.0f, 1.0f, 0.9f);
-		}
-		else {
-			palcolor = BKE_gpencil_palettecolor_addnew(palette, gps->colorname, true);
-			/* set old color and attributes */
-			bGPDpalettecolor *gpscolor = gps->palcolor;
-			copy_v4_v4(palcolor->color, gpscolor->color);
-			copy_v4_v4(palcolor->fill, gpscolor->fill);
-			palcolor->flag = gpscolor->flag;
-		}
-	}
-
-	/* clear flag and set pointer */
-	gps->flag &= ~GP_STROKE_RECALC_COLOR;
-	gps->palcolor = palcolor;
-
-	return palcolor;
-}
-
 /* ******************************************************** */
 /* Space Conversion */
 
@@ -573,9 +561,9 @@ void gp_point_to_parent_space(bGPDspoint *pt, float diff_mat[4][4], bGPDspoint *
 }
 
 /**
- * Change points position relative to parent object
+ * Change position relative to parent object
  */
-void gp_apply_parent(bGPDlayer *gpl, bGPDstroke *gps)
+void gp_apply_parent(Depsgraph *depsgraph, Object *obact, bGPdata *gpd, bGPDlayer *gpl, bGPDstroke *gps)
 {
 	bGPDspoint *pt;
 	int i;
@@ -585,7 +573,7 @@ void gp_apply_parent(bGPDlayer *gpl, bGPDstroke *gps)
 	float inverse_diff_mat[4][4];
 	float fpt[3];
 
-	ED_gpencil_parent_location(gpl, diff_mat);
+	ED_gpencil_parent_location(depsgraph, obact, gpd, gpl, diff_mat);
 	invert_m4_m4(inverse_diff_mat, diff_mat);
 
 	for (i = 0; i < gps->totpoints; i++) {
@@ -598,14 +586,14 @@ void gp_apply_parent(bGPDlayer *gpl, bGPDstroke *gps)
 /**
  * Change point position relative to parent object
  */
-void gp_apply_parent_point(bGPDlayer *gpl, bGPDspoint *pt)
+void gp_apply_parent_point(Depsgraph *depsgraph, Object *obact, bGPdata *gpd, bGPDlayer *gpl, bGPDspoint *pt)
 {
 	/* undo matrix */
 	float diff_mat[4][4];
 	float inverse_diff_mat[4][4];
 	float fpt[3];
 
-	ED_gpencil_parent_location(gpl, diff_mat);
+	ED_gpencil_parent_location(depsgraph, obact, gpd, gpl, diff_mat);
 	invert_m4_m4(inverse_diff_mat, diff_mat);
 
 	mul_v3_m4v3(fpt, inverse_diff_mat, &pt->x);
@@ -770,194 +758,259 @@ bool gp_point_xy_to_3d(GP_SpaceConversion *gsc, Scene *scene, const float screen
 }
 
 /**
- * Apply smooth to stroke point
- * \param gps              Stroke to smooth
- * \param i                Point index
- * \param inf              Amount of smoothing to apply
- * \param affect_pressure  Apply smoothing to pressure values too?
+ * Convert tGPspoint (temporary 2D/screenspace point data used by GP modal operators)
+ * to 3D coordinates.
+ *
+ * \param point2D: The screenspace 2D point data to convert
+ * \param depth: Depth array (via ED_view3d_autodist_depth())
+ * \param[out] r_out: The resulting 2D point data
  */
-bool gp_smooth_stroke(bGPDstroke *gps, int i, float inf, bool affect_pressure)
+void gp_stroke_convertcoords_tpoint(
+        Scene *scene, ARegion *ar, View3D *v3d,
+        Object *ob, bGPDlayer *gpl,
+        const tGPspoint *point2D, float *depth,
+        float r_out[3])
 {
-	bGPDspoint *pt = &gps->points[i];
-	float pressure = 0.0f;
-	float sco[3] = {0.0f};
+	ToolSettings *ts = scene->toolsettings;
+	const int mval[2] = {point2D->x, point2D->y};
 
-	/* Do nothing if not enough points to smooth out */
-	if (gps->totpoints <= 2) {
-		return false;
+	if ((depth != NULL) && (ED_view3d_autodist_simple(ar, mval, r_out, 0, depth))) {
+		/* projecting onto 3D-Geometry
+		*	- nothing more needs to be done here, since view_autodist_simple() has already done it
+		*/
 	}
-
-	/* Only affect endpoints by a fraction of the normal strength,
-	 * to prevent the stroke from shrinking too much
-	 */
-	if ((i == 0) || (i == gps->totpoints - 1)) {
-		inf *= 0.1f;
-	}
-
-	/* Compute smoothed coordinate by taking the ones nearby */
-	/* XXX: This is potentially slow, and suffers from accumulation error as earlier points are handled before later ones */
-	{
-		// XXX: this is hardcoded to look at 2 points on either side of the current one (i.e. 5 items total)
-		const int   steps = 2;
-		const float average_fac = 1.0f / (float)(steps * 2 + 1);
-		int step;
-
-		/* add the point itself */
-		madd_v3_v3fl(sco, &pt->x, average_fac);
-
-		if (affect_pressure) {
-			pressure += pt->pressure * average_fac;
+	else {
+		float mval_f[2] = {(float)point2D->x, (float)point2D->y};
+		float mval_prj[2];
+		float rvec[3], dvec[3];
+		float zfac;
+
+		/* Current method just converts each point in screen-coordinates to
+		 * 3D-coordinates using the 3D-cursor as reference.
+		 */
+		ED_gp_get_drawing_reference(v3d, scene, ob, gpl, ts->gpencil_v3d_align, rvec);
+		zfac = ED_view3d_calc_zfac(ar->regiondata, rvec, NULL);
+
+		if (ED_view3d_project_float_global(ar, rvec, mval_prj, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK) {
+			sub_v2_v2v2(mval_f, mval_prj, mval_f);
+			ED_view3d_win_to_delta(ar, mval_f, dvec, zfac);
+			sub_v3_v3v3(r_out, rvec, dvec);
+		}
+		else {
+			zero_v3(r_out);
 		}
+	}
+}
 
-		/* n-steps before/after current point */
-		// XXX: review how the endpoints are treated by this algorithm
-		// XXX: falloff measures should also introduce some weighting variations, so that further-out points get less weight
-		for (step = 1; step <= steps; step++) {
-			bGPDspoint *pt1, *pt2;
-			int before = i - step;
-			int after = i + step;
-
-			CLAMP_MIN(before, 0);
-			CLAMP_MAX(after, gps->totpoints - 1);
-
-			pt1 = &gps->points[before];
-			pt2 = &gps->points[after];
-
-			/* add both these points to the average-sum (s += p[i]/n) */
-			madd_v3_v3fl(sco, &pt1->x, average_fac);
-			madd_v3_v3fl(sco, &pt2->x, average_fac);
-
-#if 0
-			/* XXX: Disabled because get weird result */
-			/* do pressure too? */
-			if (affect_pressure) {
-				pressure += pt1->pressure * average_fac;
-				pressure += pt2->pressure * average_fac;
+/**
+ * Get drawing reference point for conversion or projection of the stroke
+ * \param[out] r_vec : Reference point found
+ */
+void ED_gp_get_drawing_reference(
+        View3D *v3d, Scene *scene, Object *ob, bGPDlayer *UNUSED(gpl),
+        char align_flag, float r_vec[3])
+{
+	const float *fp = ED_view3d_cursor3d_get(scene, v3d)->location;
+
+	/* if using a gpencil object at cursor mode, can use the location of the object */
+	if (align_flag & GP_PROJECT_VIEWSPACE) {
+		if (ob && (ob->type == OB_GPENCIL)) {
+			/* fallback (no strokes) - use cursor or object location */
+			if (align_flag & GP_PROJECT_CURSOR) {
+				/* use 3D-cursor */
+				copy_v3_v3(r_vec, fp);
+			}
+			else {
+				/* use object location */
+				copy_v3_v3(r_vec, ob->obmat[3]);
 			}
-#endif
 		}
 	}
-
-	/* Based on influence factor, blend between original and optimal smoothed coordinate */
-	interp_v3_v3v3(&pt->x, &pt->x, sco, inf);
-
-#if 0
-	/* XXX: Disabled because get weird result */
-	if (affect_pressure) {
-		pt->pressure = pressure;
+	else {
+		/* use 3D-cursor */
+		copy_v3_v3(r_vec, fp);
 	}
-#endif
-
-	return true;
 }
 
+
 /**
-* Apply smooth for strength to stroke point
-* \param gps              Stroke to smooth
-* \param i                Point index
-* \param inf              Amount of smoothing to apply
-*/
-bool gp_smooth_stroke_strength(bGPDstroke *gps, int i, float inf)
+ * Reproject all points of the stroke to a plane locked to axis to avoid stroke offset
+ */
+void ED_gp_project_stroke_to_plane(Object *ob, RegionView3D *rv3d, bGPDstroke *gps, const float origin[3], const int axis)
 {
-	bGPDspoint *ptb = &gps->points[i];
-
-	/* Do nothing if not enough points */
-	if (gps->totpoints <= 2) {
-		return false;
+	float plane_normal[3];
+	float vn[3];
+
+	float ray[3];
+	float rpoint[3];
+
+	/* normal vector for a plane locked to axis */
+	zero_v3(plane_normal);
+	if (axis < 0) {
+		/* if the axis is not locked, need a vector to the view direction
+		* in order to get the right size of the stroke.
+		*/
+		ED_view3d_global_to_vector(rv3d, origin, plane_normal);
+	}
+	else {
+		plane_normal[axis] = 1.0f;
+		/* if object, apply object rotation */
+		if (ob && (ob->type == OB_GPENCIL)) {
+			mul_mat3_m4_v3(ob->obmat, plane_normal);
+		}
 	}
 
-	/* Compute theoretical optimal value using distances */
-	bGPDspoint *pta, *ptc;
-	int before = i - 1;
-	int after = i + 1;
-
-	CLAMP_MIN(before, 0);
-	CLAMP_MAX(after, gps->totpoints - 1);
-
-	pta = &gps->points[before];
-	ptc = &gps->points[after];
+	/* Reproject the points in the plane */
+	for (int i = 0; i < gps->totpoints; i++) {
+		bGPDspoint *pt = &gps->points[i];
 
-	/* the optimal value is the corresponding to the interpolation of the strength
-	 *  at the distance of point b
-	 */
-	const float fac = line_point_factor_v3(&ptb->x, &pta->x, &ptc->x);
-	const float optimal = (1.0f - fac) * pta->strength + fac * ptc->strength;
+		/* get a vector from the point with the current view direction of the viewport */
+		ED_view3d_global_to_vector(rv3d, &pt->x, vn);
 
-	/* Based on influence factor, blend between original and optimal */
-	ptb->strength = (1.0f - inf) * ptb->strength + inf * optimal;
+		/* calculate line extreme point to create a ray that cross the plane */
+		mul_v3_fl(vn, -50.0f);
+		add_v3_v3v3(ray, &pt->x, vn);
 
-	return true;
+		/* if the line never intersect, the point is not changed */
+		if (isect_line_plane_v3(rpoint, &pt->x, ray, origin, plane_normal)) {
+			copy_v3_v3(&pt->x, rpoint);
+		}
+	}
 }
 
 /**
-* Apply smooth for thickness to stroke point (use pressure)
-* \param gps              Stroke to smooth
-* \param i                Point index
-* \param inf              Amount of smoothing to apply
-*/
-bool gp_smooth_stroke_thickness(bGPDstroke *gps, int i, float inf)
+ * Reproject given point to a plane locked to axis to avoid stroke offset
+ * \param[in, out] pt : Point to affect
+ */
+void ED_gp_project_point_to_plane(Object *ob, RegionView3D *rv3d, const float origin[3], const int axis, bGPDspoint *pt)
 {
-	bGPDspoint *ptb = &gps->points[i];
-
-	/* Do nothing if not enough points */
-	if (gps->totpoints <= 2) {
-		return false;
+	float plane_normal[3];
+	float vn[3];
+
+	float ray[3];
+	float rpoint[3];
+
+	/* normal vector for a plane locked to axis */
+	zero_v3(plane_normal);
+	if (axis < 0) {
+		/* if the axis is not locked, need a vector to the view direction
+		 * in order to get the right size of the stroke.
+		 */
+		ED_view3d_global_to_vector(rv3d, origin, plane_normal);
+	}
+	else {
+		plane_normal[axis] = 1.0f;
+		/* if object, apply object rotation */
+		if (ob && (ob->type == OB_GPENCIL)) {
+			mul_mat3_m4_v3(ob->obmat, plane_normal);
+		}
 	}
 
-	/* Compute theoretical optimal value using distances */
-	bGPDspoint *pta, *ptc;
-	int before = i - 1;
-	int after = i + 1;
-
-	CLAMP_MIN(before, 0);
-	CLAMP_MAX(after, gps->totpoints - 1);
-
-	pta = &gps->points[before];
-	ptc = &gps->points[after];
 
-	/* the optimal value is the corresponding to the interpolation of the pressure
-	 *  at the distance of point b
-	 */
-	float fac = line_point_factor_v3(&ptb->x, &pta->x, &ptc->x);
-	float optimal = (1.0f - fac) * pta->pressure + fac * ptc->pressure;
+	/* Reproject the points in the plane */
+	/* get a vector from the point with the current view direction of the viewport */
+	ED_view3d_global_to_vector(rv3d, &pt->x, vn);
 
-	/* Based on influence factor, blend between original and optimal */
-	ptb->pressure = (1.0f - inf) * ptb->pressure + inf * optimal;
+	/* calculate line extrem point to create a ray that cross the plane */
+	mul_v3_fl(vn, -50.0f);
+	add_v3_v3v3(ray, &pt->x, vn);
 
-	return true;
+	/* if the line never intersect, the point is not changed */
+	if (isect_line_plane_v3(rpoint, &pt->x, ray, origin, plane_normal)) {
+		copy_v3_v3(&pt->x, rpoint);
+	}
 }
 
+/* ******************************************************** */
+/* Stroke Operations */
+// XXX: Check if these functions duplicate stuff in blenkernel, and/or whether we should just deduplicate
+
 /**
  * Subdivide a stroke once, by adding a point half way between each pair of existing points
  * \param gps           Stroke data
- * \param new_totpoints Total number of points (after subdividing)
+ * \param subdivide      Number of times to subdivide
  */
-void gp_subdivide_stroke(bGPDstroke *gps, const int new_totpoints)
+void gp_subdivide_stroke(bGPDstroke *gps, const int subdivide)
 {
-	/* Move points towards end of enlarged points array to leave space for new points */
-	int y = 1;
-	for (int i = gps->totpoints - 1; i > 0; i--) {
-		gps->points[new_totpoints - y] = gps->points[i];
-		y += 2;
-	}
+	bGPDspoint *temp_points;
+	int totnewpoints, oldtotpoints;
+	int i2;
+
+	/* loop as many times as levels */
+	for (int s = 0; s < subdivide; s++) {
+		totnewpoints = gps->totpoints - 1;
+		/* duplicate points in a temp area */
+		temp_points = MEM_dupallocN(gps->points);
+		oldtotpoints = gps->totpoints;
+
+		/* resize the points arrys */
+		gps->totpoints += totnewpoints;
+		gps->points = MEM_recallocN(gps->points, sizeof(*gps->points) * gps->totpoints);
+		gps->dvert = MEM_recallocN(gps->dvert, sizeof(*gps->dvert) * gps->totpoints);
+		gps->flag |= GP_STROKE_RECALC_CACHES;
+
+		/* move points from last to first to new place */
+		i2 = gps->totpoints - 1;
+		for (int i = oldtotpoints - 1; i > 0; i--) {
+			bGPDspoint *pt = &temp_points[i];
+			bGPDspoint *pt_final = &gps->points[i2];
+			MDeformVert *dvert = &gps->dvert[i];
+			MDeformVert *dvert_final = &gps->dvert[i2];
+
+			copy_v3_v3(&pt_final->x, &pt->x);
+			pt_final->pressure = pt->pressure;
+			pt_final->strength = pt->strength;
+			pt_final->time = pt->time;
+			pt_final->flag = pt->flag;
+			pt_final->uv_fac = pt->uv_fac;
+			pt_final->uv_rot = pt->uv_rot;
+
+			dvert_final->totweight = dvert->totweight;
+			dvert_final->dw = dvert->dw;
+
+			i2 -= 2;
+		}
+		/* interpolate mid points */
+		i2 = 1;
+		for (int i = 0; i < oldtotpoints - 1; i++) {
+			bGPDspoint *pt = &temp_points[i];
+			bGPDspoint *next = &temp_points[i + 1];
+			bGPDspoint *pt_final = &gps->points[i2];
+			MDeformVert *dvert_final = &gps->dvert[i2];
+
+			/* add a half way point */
+			interp_v3_v3v3(&pt_final->x, &pt->x, &next->x, 0.5f);
+			pt_final->pressure = interpf(pt->pressure, next->pressure, 0.5f);
+			pt_final->strength = interpf(pt->strength, next->strength, 0.5f);
+			CLAMP(pt_final->strength, GPENCIL_STRENGTH_MIN, 1.0f);
+			pt_final->time = interpf(pt->time, next->time, 0.5f);
+			pt_final->uv_fac = interpf(pt->uv_fac, next->uv_fac, 0.5f);
+			pt_final->uv_rot = interpf(pt->uv_rot, next->uv_rot, 0.5f);
+
+			dvert_final->totweight = 0;
+			dvert_final->dw = NULL;
+
+			i2 += 2;
+		}
 
-	/* Create interpolated points */
-	for (int i = 0; i < new_totpoints - 1; i += 2) {
-		bGPDspoint *prev  = &gps->points[i];
-		bGPDspoint *pt    = &gps->points[i + 1];
-		bGPDspoint *next  = &gps->points[i + 2];
+		MEM_SAFE_FREE(temp_points);
 
-		/* Interpolate all values */
-		interp_v3_v3v3(&pt->x, &prev->x, &next->x, 0.5f);
+		/* move points to smooth stroke */
+		/* duplicate points in a temp area with the new subdivide data */
+		temp_points = MEM_dupallocN(gps->points);
 
-		pt->pressure = interpf(prev->pressure, next->pressure, 0.5f);
-		pt->strength = interpf(prev->strength, next->strength, 0.5f);
-		CLAMP(pt->strength, GPENCIL_STRENGTH_MIN, 1.0f);
-		pt->time = interpf(prev->time, next->time, 0.5f);
-	}
+		/* extreme points are not changed */
+		for (int i = 0; i < gps->totpoints - 2; i++) {
+			bGPDspoint *pt = &temp_points[i];
+			bGPDspoint *next = &temp_points[i + 1];
+			bGPDspoint *pt_final = &gps->points[i + 1];
 
-	/* Update to new total number of points */
-	gps->totpoints = new_totpoints;
+			/* move point */
+			interp_v3_v3v3(&pt_final->x, &pt->x, &next->x, 0.5f);
+		}
+		/* free temp memory */
+		MEM_SAFE_FREE(temp_points);
+	}
 }
 
 /**
@@ -965,7 +1018,7 @@ void gp_subdivide_stroke(bGPDstroke *gps, const int new_totpoints)
  * \param gps           Stroke data
  * \param brush         Brush data
  */
-void gp_randomize_stroke(bGPDstroke *gps, bGPDbrush *brush, RNG *rng)
+void gp_randomize_stroke(bGPDstroke *gps, Brush *brush, RNG *rng)
 {
 	bGPDspoint *pt1, *pt2, *pt3;
 	float v1[3];
@@ -995,10 +1048,10 @@ void gp_randomize_stroke(bGPDstroke *gps, bGPDbrush *brush, RNG *rng)
 	normalize_v3(ortho);
 
 	/* Read all points and apply shift vector (first and last point not modified) */
-	for (int i = 1; i < gps->totpoints - 1; ++i) {
+	for (int i = 1; i < gps->totpoints - 1; i++) {
 		bGPDspoint *pt = &gps->points[i];
 		/* get vector with shift (apply a division because random is too sensitive */
-		const float fac = BLI_rng_get_float(rng) * (brush->draw_random_sub / 10.0f);
+		const float fac = BLI_rng_get_float(rng) * (brush->gpencil_settings->draw_random_sub / 10.0f);
 		float svec[3];
 		copy_v3_v3(svec, ortho);
 		if (BLI_rng_get_float(rng) > 0.5f) {
@@ -1011,31 +1064,46 @@ void gp_randomize_stroke(bGPDstroke *gps, bGPDbrush *brush, RNG *rng)
 		/* apply shift */
 		add_v3_v3(&pt->x, svec);
 	}
-
 }
+
+/* ******************************************************** */
+/* Layer Parenting  - Compute Parent Transforms */
+
 /* calculate difference matrix */
-void ED_gpencil_parent_location(bGPDlayer *gpl, float diff_mat[4][4])
+void ED_gpencil_parent_location(
+        const Depsgraph *depsgraph, Object *obact, bGPdata *UNUSED(gpd),
+        bGPDlayer *gpl, float diff_mat[4][4])
 {
-	Object *ob = gpl->parent;
-
-	if (ob == NULL) {
+	Object *ob_eval = depsgraph != NULL ? DEG_get_evaluated_object(depsgraph, obact) : obact;
+	Object *obparent = gpl->parent;
+	Object *obparent_eval = depsgraph != NULL ? DEG_get_evaluated_object(depsgraph, obparent) : obparent;
+
+	/* if not layer parented, try with object parented */
+	if (obparent_eval == NULL) {
+		if (ob_eval != NULL) {
+			if (ob_eval->type == OB_GPENCIL) {
+				copy_m4_m4(diff_mat, ob_eval->obmat);
+				return;
+			}
+		}
+		/* not gpencil object */
 		unit_m4(diff_mat);
 		return;
 	}
 	else {
 		if ((gpl->partype == PAROBJECT) || (gpl->partype == PARSKEL)) {
-			mul_m4_m4m4(diff_mat, ob->obmat, gpl->inverse);
+			mul_m4_m4m4(diff_mat, obparent_eval->obmat, gpl->inverse);
 			return;
 		}
 		else if (gpl->partype == PARBONE) {
-			bPoseChannel *pchan = BKE_pose_channel_find_name(ob->pose, gpl->parsubstr);
+			bPoseChannel *pchan = BKE_pose_channel_find_name(obparent_eval->pose, gpl->parsubstr);
 			if (pchan) {
 				float tmp_mat[4][4];
-				mul_m4_m4m4(tmp_mat, ob->obmat, pchan->pose_mat);
+				mul_m4_m4m4(tmp_mat, obparent_eval->obmat, pchan->pose_mat);
 				mul_m4_m4m4(diff_mat, tmp_mat, gpl->inverse);
 			}
 			else {
-				mul_m4_m4m4(diff_mat, ob->obmat, gpl->inverse); /* if bone not found use object (armature) */
+				mul_m4_m4m4(diff_mat, obparent_eval->obmat, gpl->inverse); /* if bone not found use object (armature) */
 			}
 			return;
 		}
@@ -1046,7 +1114,7 @@ void ED_gpencil_parent_location(bGPDlayer *gpl, float diff_mat[4][4])
 }
 
 /* reset parent matrix for all layers */
-void ED_gpencil_reset_layers_parent(bGPdata *gpd)
+void ED_gpencil_reset_layers_parent(Depsgraph *depsgraph, Object *obact, bGPdata *gpd)
 {
 	bGPDspoint *pt;
 	int i;
@@ -1071,7 +1139,7 @@ void ED_gpencil_reset_layers_parent(bGPdata *gpd)
 			/* only redo if any change */
 			if (!equals_m4m4(gpl->inverse, cur_mat)) {
 				/* first apply current transformation to all strokes */
-				ED_gpencil_parent_location(gpl, diff_mat);
+				ED_gpencil_parent_location(depsgraph, obact, gpd, gpl, diff_mat);
 				for (bGPDframe *gpf = gpl->frames.first; gpf; gpf = gpf->next) {
 					for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
 						for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
@@ -1086,90 +1154,582 @@ void ED_gpencil_reset_layers_parent(bGPdata *gpd)
 	}
 }
 /* ******************************************************** */
-bool ED_gpencil_stroke_minmax(
-        const bGPDstroke *gps, const bool use_select,
-        float r_min[3], float r_max[3])
+/* GP Object Stuff */
+
+/* Helper function to create new OB_GPENCIL Object */
+Object *ED_add_gpencil_object(bContext *C, Scene *scene, const float loc[3])
 {
-	const bGPDspoint *pt;
-	int i;
-	bool changed = false;
+	float rot[3] = {0.0f};
+
+	Object *ob = ED_object_add_type(C, OB_GPENCIL, NULL, loc, rot, false, scene->lay);
 
-	for (i = 0, pt = gps->points; i < gps->totpoints; i++, pt++) {
-		if ((use_select == false) || (pt->flag & GP_SPOINT_SELECT)) {;
-			minmax_v3v3_v3(r_min, r_max, &pt->x);
-			changed = true;
+	/* define size */
+	BKE_object_obdata_size_init(ob, GP_OBGPENCIL_DEFAULT_SIZE);
+	/* create default brushes and colors */
+	ED_gpencil_add_defaults(C);
+
+	return ob;
+}
+
+/* Helper function to create default colors and drawing brushes */
+void ED_gpencil_add_defaults(bContext *C)
+{
+	Main *bmain = CTX_data_main(C);
+	Object *ob = CTX_data_active_object(C);
+	ToolSettings *ts = CTX_data_tool_settings(C);
+
+	/* first try to reuse default material */
+	if (ob->actcol > 0) {
+		Material *ma = give_current_material(ob, ob->actcol);
+		if ((ma) && (ma->gp_style == NULL)) {
+			BKE_material_init_gpencil_settings(ma);
 		}
 	}
-	return changed;
+
+	/* ensure color exist */
+	BKE_gpencil_material_ensure(bmain, ob);
+
+	Paint *paint = BKE_brush_get_gpencil_paint(ts);
+	/* if not exist, create a new one */
+	if (paint->brush == NULL) {
+		/* create new brushes */
+		BKE_brush_gpencil_presets(C);
+	}
+
 }
 
-/* Dynamic Enums of GP Brushes */
-const EnumPropertyItem *ED_gpencil_brushes_enum_itemf(
-        bContext *C, PointerRNA *UNUSED(ptr), PropertyRNA *UNUSED(prop),
-        bool *r_free)
+/* ******************************************************** */
+/* Vertex Groups */
+
+/* assign points to vertex group */
+void ED_gpencil_vgroup_assign(bContext *C, Object *ob, float weight)
 {
-	ToolSettings *ts = CTX_data_tool_settings(C);
-	bGPDbrush *brush;
-	EnumPropertyItem *item = NULL, item_tmp = { 0 };
-	int totitem = 0;
-	int i = 0;
+	const int def_nr = ob->actdef - 1;
+	if (!BLI_findlink(&ob->defbase, def_nr))
+		return;
 
-	if (ELEM(NULL, C, ts)) {
-		return DummyRNA_DEFAULT_items;
+	CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
+	{
+		if (gps->flag & GP_STROKE_SELECT) {
+			for (int i = 0; i < gps->totpoints; i++) {
+				bGPDspoint *pt = &gps->points[i];
+				MDeformVert *dvert = &gps->dvert[i];
+				if (pt->flag & GP_SPOINT_SELECT) {
+					BKE_gpencil_vgroup_add_point_weight(dvert, def_nr, weight);
+				}
+			}
+		}
 	}
+	CTX_DATA_END;
+}
 
-	/* Existing brushes */
-	for (brush = ts->gp_brushes.first; brush; brush = brush->next, i++) {
-		item_tmp.identifier = brush->info;
-		item_tmp.name = brush->info;
-		item_tmp.value = i;
+/* remove points from vertex group */
+void ED_gpencil_vgroup_remove(bContext *C, Object *ob)
+{
+	const int def_nr = ob->actdef - 1;
+	if (!BLI_findlink(&ob->defbase, def_nr))
+		return;
 
-		if (brush->flag & GP_BRUSH_ACTIVE)
-			item_tmp.icon = ICON_BRUSH_DATA;
-		else
-			item_tmp.icon = ICON_NONE;
+	CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
+	{
+		for (int i = 0; i < gps->totpoints; i++) {
+			bGPDspoint *pt = &gps->points[i];
+			MDeformVert *dvert = &gps->dvert[i];
 
-		RNA_enum_item_add(&item, &totitem, &item_tmp);
+			if ((pt->flag & GP_SPOINT_SELECT) && (dvert->totweight > 0)) {
+				BKE_gpencil_vgroup_remove_point_weight(dvert, def_nr);
+			}
+		}
 	}
+	CTX_DATA_END;
+}
 
-	RNA_enum_item_end(&item, &totitem);
-	*r_free = true;
+/* select points of vertex group */
+void ED_gpencil_vgroup_select(bContext *C, Object *ob)
+{
+	const int def_nr = ob->actdef - 1;
+	if (!BLI_findlink(&ob->defbase, def_nr))
+		return;
 
-	return item;
+	CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
+	{
+		for (int i = 0; i < gps->totpoints; i++) {
+			bGPDspoint *pt = &gps->points[i];
+			MDeformVert *dvert = &gps->dvert[i];
+
+			if (BKE_gpencil_vgroup_use_index(dvert, def_nr) > -1.0f) {
+				pt->flag |= GP_SPOINT_SELECT;
+				gps->flag |= GP_STROKE_SELECT;
+			}
+		}
+	}
+	CTX_DATA_END;
 }
 
-/* Dynamic Enums of GP Palettes */
-const EnumPropertyItem *ED_gpencil_palettes_enum_itemf(
-        bContext *C, PointerRNA *UNUSED(ptr), PropertyRNA *UNUSED(prop),
-        bool *r_free)
+/* unselect points of vertex group */
+void ED_gpencil_vgroup_deselect(bContext *C, Object *ob)
 {
-	bGPdata *gpd = CTX_data_gpencil_data(C);
-	bGPDpalette *palette;
-	EnumPropertyItem *item = NULL, item_tmp = { 0 };
-	int totitem = 0;
-	int i = 0;
+	const int def_nr = ob->actdef - 1;
+	if (!BLI_findlink(&ob->defbase, def_nr))
+		return;
 
-	if (ELEM(NULL, C, gpd)) {
-		return DummyRNA_DEFAULT_items;
+	CTX_DATA_BEGIN(C, bGPDstroke *, gps, editable_gpencil_strokes)
+	{
+		for (int i = 0; i < gps->totpoints; i++) {
+			bGPDspoint *pt = &gps->points[i];
+			MDeformVert *dvert = &gps->dvert[i];
+
+			if (BKE_gpencil_vgroup_use_index(dvert, def_nr) > -1.0f) {
+				pt->flag &= ~GP_SPOINT_SELECT;
+				gps->flag |= GP_STROKE_SELECT;
+			}
+		}
 	}
+	CTX_DATA_END;
+}
 
-	/* Existing palettes */
-	for (palette = gpd->palettes.first; palette; palette = palette->next, i++) {
-		item_tmp.identifier = palette->info;
-		item_tmp.name = palette->info;
-		item_tmp.value = i;
+/* ******************************************************** */
+/* Cursor drawing */
 
-		if (palette->flag & PL_PALETTE_ACTIVE)
-			item_tmp.icon = ICON_COLOR;
-		else
-			item_tmp.icon = ICON_NONE;
+/* check if cursor is in drawing region */
+static bool gp_check_cursor_region(bContext *C, int mval[2])
+{
+	ARegion *ar = CTX_wm_region(C);
+	ScrArea *sa = CTX_wm_area(C);
+	/* TODO: add more spacetypes */
+	if (!ELEM(sa->spacetype, SPACE_VIEW3D)) {
+		return false;
+	}
+	if ((ar) && (ar->regiontype != RGN_TYPE_WINDOW)) {
+		return false;
+	}
+	else if (ar) {
+		rcti region_rect;
 
-		RNA_enum_item_add(&item, &totitem, &item_tmp);
+		/* Perform bounds check using  */
+		ED_region_visible_rect(ar, &region_rect);
+		return BLI_rcti_isect_pt_v(&region_rect, mval);
+	}
+	else {
+		return false;
 	}
+}
 
-	RNA_enum_item_end(&item, &totitem);
-	*r_free = true;
+/* draw eraser cursor */
+void ED_gpencil_brush_draw_eraser(Brush *brush, int x, int y)
+{
+	short radius = (short)brush->size;
 
-	return item;
+	GPUVertFormat *format = immVertexFormat();
+	const uint shdr_pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
+	immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
+
+	glEnable(GL_LINE_SMOOTH);
+	glEnable(GL_BLEND);
+	glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+
+	immUniformColor4ub(255, 100, 100, 20);
+	imm_draw_circle_fill_2d(shdr_pos, x, y, radius, 40);
+
+	immUnbindProgram();
+
+	immBindBuiltinProgram(GPU_SHADER_2D_LINE_DASHED_UNIFORM_COLOR);
+
+	float viewport_size[4];
+	glGetFloatv(GL_VIEWPORT, viewport_size);
+	immUniform2f("viewport_size", viewport_size[2], viewport_size[3]);
+
+	immUniformColor4f(1.0f, 0.39f, 0.39f, 0.78f);
+	immUniform1i("colors_len", 0);  /* "simple" mode */
+	immUniform1f("dash_width", 12.0f);
+	immUniform1f("dash_factor", 0.5f);
+
+	imm_draw_circle_wire_2d(shdr_pos, x, y, radius,
+		/* XXX Dashed shader gives bad results with sets of small segments currently,
+		*     temp hack around the issue. :( */
+		max_ii(8, radius / 2));  /* was fixed 40 */
+
+	immUnbindProgram();
+
+	glDisable(GL_BLEND);
+	glDisable(GL_LINE_SMOOTH);
+}
+
+/* Helper callback for drawing the cursor itself */
+static void gp_brush_drawcursor(bContext *C, int x, int y, void *customdata)
+{
+	Main *bmain = CTX_data_main(C);
+	Scene *scene = CTX_data_scene(C);
+	Object *ob = CTX_data_active_object(C);
+	ARegion *ar = CTX_wm_region(C);
+
+	GP_BrushEdit_Settings *gset = &scene->toolsettings->gp_sculpt;
+	bGPdata *gpd = ED_gpencil_data_get_active(C);
+	GP_EditBrush_Data *brush = NULL;
+	Brush *paintbrush = NULL;
+	Material *ma = NULL;
+	MaterialGPencilStyle *gp_style = NULL;
+	int *last_mouse_position = customdata;
+
+	if ((gpd) && (gpd->flag & GP_DATA_STROKE_WEIGHTMODE)) {
+		brush = &gset->brush[gset->weighttype];
+	}
+	else {
+		brush = &gset->brush[gset->brushtype];
+	}
+
+	/* default radius and color */
+	float color[3] = {1.0f, 1.0f, 1.0f};
+	float darkcolor[3];
+	float radius = 3.0f;
+
+	int mval[2] = {x, y};
+	/* check if cursor is in drawing region and has valid datablock */
+	if ((!gp_check_cursor_region(C, mval)) || (gpd == NULL)) {
+		return;
+	}
+
+	/* for paint use paint brush size and color */
+	if (gpd->flag & GP_DATA_STROKE_PAINTMODE) {
+		paintbrush = BKE_brush_getactive_gpencil(scene->toolsettings);
+		/* while drawing hide */
+		if ((gpd->runtime.sbuffer_size > 0) &&
+		    (paintbrush) && ((paintbrush->gpencil_settings->flag & GP_BRUSH_STABILIZE_MOUSE) == 0) &&
+		    ((paintbrush->gpencil_settings->flag & GP_BRUSH_STABILIZE_MOUSE_TEMP) == 0))
+		{
+			return;
+		}
+
+		if (paintbrush) {
+			if ((paintbrush->gpencil_settings->flag & GP_BRUSH_ENABLE_CURSOR) == 0) {
+				return;
+			}
+
+			/* eraser has special shape and use a different shader program */
+			if (paintbrush->gpencil_settings->brush_type == GP_BRUSH_TYPE_ERASE) {
+				ED_gpencil_brush_draw_eraser(paintbrush, x, y);
+				return;
+			}
+
+			/* get current drawing color */
+			ma = BKE_gpencil_get_material_from_brush(paintbrush);
+			if (ma == NULL) {
+				BKE_gpencil_material_ensure(bmain, ob);
+				/* assign the first material to the brush */
+				ma = give_current_material(ob, 1);
+				paintbrush->gpencil_settings->material = ma;
+			}
+			gp_style = ma->gp_style;
+
+			/* after some testing, display the size of the brush is not practical because
+			 * is too disruptive and the size of cursor does not change with zoom factor.
+			 * The decision was to use a fix size, instead of paintbrush->thickness value.
+			 */
+			if ((gp_style) && (GPENCIL_PAINT_MODE(gpd)) &&
+			    ((paintbrush->gpencil_settings->flag & GP_BRUSH_STABILIZE_MOUSE) == 0) &&
+			    ((paintbrush->gpencil_settings->flag & GP_BRUSH_STABILIZE_MOUSE_TEMP) == 0) &&
+			    (paintbrush->gpencil_settings->brush_type == GP_BRUSH_TYPE_DRAW))
+			{
+				radius = 2.0f;
+				copy_v3_v3(color, gp_style->stroke_rgba);
+			}
+			else {
+				radius = 5.0f;
+				copy_v3_v3(color, paintbrush->add_col);
+			}
+		}
+		else {
+			return;
+		}
+	}
+
+	/* for sculpt use sculpt brush size */
+	if (GPENCIL_SCULPT_OR_WEIGHT_MODE(gpd)) {
+		if (brush) {
+			if ((brush->flag & GP_EDITBRUSH_FLAG_ENABLE_CURSOR) == 0) {
+				return;
+			}
+
+			radius = brush->size;
+			if (brush->flag & (GP_EDITBRUSH_FLAG_INVERT | GP_EDITBRUSH_FLAG_TMP_INVERT)) {
+				copy_v3_v3(color, brush->curcolor_sub);
+			}
+			else {
+				copy_v3_v3(color, brush->curcolor_add);
+			}
+		}
+	}
+
+	/* draw icon */
+	GPUVertFormat *format = immVertexFormat();
+	uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
+	immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
+
+	glEnable(GL_LINE_SMOOTH);
+	glEnable(GL_BLEND);
+
+	/* Inner Ring: Color from UI panel */
+	immUniformColor4f(color[0], color[1], color[2], 0.8f);
+	if ((gp_style) && (GPENCIL_PAINT_MODE(gpd)) &&
+	    ((paintbrush->gpencil_settings->flag & GP_BRUSH_STABILIZE_MOUSE) == 0) &&
+	    ((paintbrush->gpencil_settings->flag & GP_BRUSH_STABILIZE_MOUSE_TEMP) == 0) &&
+	    (paintbrush->gpencil_settings->brush_type == GP_BRUSH_TYPE_DRAW))
+	{
+		imm_draw_circle_fill_2d(pos, x, y, radius, 40);
+	}
+	else {
+		imm_draw_circle_wire_2d(pos, x, y, radius, 40);
+	}
+
+	/* Outer Ring: Dark color for contrast on light backgrounds (e.g. gray on white) */
+	mul_v3_v3fl(darkcolor, color, 0.40f);
+	immUniformColor4f(darkcolor[0], darkcolor[1], darkcolor[2], 0.8f);
+	imm_draw_circle_wire_2d(pos, x, y, radius + 1, 40);
+
+	glDisable(GL_BLEND);
+	glDisable(GL_LINE_SMOOTH);
+
+	/* Draw line for lazy mouse */
+	if ((last_mouse_position) &&
+	    (paintbrush->gpencil_settings->flag & GP_BRUSH_STABILIZE_MOUSE_TEMP))
+	{
+		glEnable(GL_LINE_SMOOTH);
+		glEnable(GL_BLEND);
+
+		copy_v3_v3(color, paintbrush->add_col);
+		immUniformColor4f(color[0], color[1], color[2], 0.8f);
+
+		immBegin(GPU_PRIM_LINES, 2);
+		immVertex2f(pos, x, y);
+		immVertex2f(
+		        pos,
+		        last_mouse_position[0] + ar->winrct.xmin,
+		        last_mouse_position[1] + ar->winrct.ymin);
+		immEnd();
+
+		glDisable(GL_BLEND);
+		glDisable(GL_LINE_SMOOTH);
+	}
+
+	immUnbindProgram();
+}
+
+/* Turn brush cursor in on/off */
+void ED_gpencil_toggle_brush_cursor(bContext *C, bool enable, void *customdata)
+{
+	Scene *scene = CTX_data_scene(C);
+	GP_BrushEdit_Settings *gset = &scene->toolsettings->gp_sculpt;
+	int *lastpost = customdata;
+
+	if (gset->paintcursor && !enable) {
+		/* clear cursor */
+		WM_paint_cursor_end(CTX_wm_manager(C), gset->paintcursor);
+		gset->paintcursor = NULL;
+	}
+	else if (enable) {
+		/* in some situations cursor could be duplicated, so it is better disable first if exist */
+		if (gset->paintcursor) {
+			/* clear cursor */
+			WM_paint_cursor_end(CTX_wm_manager(C), gset->paintcursor);
+			gset->paintcursor = NULL;
+		}
+		/* enable cursor */
+		gset->paintcursor = WM_paint_cursor_activate(CTX_wm_manager(C),
+		                                             NULL,
+		                                             gp_brush_drawcursor,
+		                                             (lastpost) ? customdata : NULL);
+	}
+}
+
+/* verify if is using the right brush */
+static void gpencil_verify_brush_type(bContext *C, int newmode)
+{
+	ToolSettings *ts = CTX_data_tool_settings(C);
+	GP_BrushEdit_Settings *gset = &ts->gp_sculpt;
+
+	switch (newmode) {
+		case OB_MODE_GPENCIL_SCULPT:
+			gset->flag &= ~GP_BRUSHEDIT_FLAG_WEIGHT_MODE;
+			if ((gset->brushtype < 0) || (gset->brushtype >= GP_EDITBRUSH_TYPE_WEIGHT)) {
+				gset->brushtype = GP_EDITBRUSH_TYPE_PUSH;
+			}
+			break;
+		case OB_MODE_GPENCIL_WEIGHT:
+			gset->flag |= GP_BRUSHEDIT_FLAG_WEIGHT_MODE;
+			if ((gset->weighttype < GP_EDITBRUSH_TYPE_WEIGHT) || (gset->weighttype >= TOT_GP_EDITBRUSH_TYPES)) {
+				gset->weighttype = GP_EDITBRUSH_TYPE_WEIGHT;
+			}
+			break;
+		default:
+			break;
+	}
+}
+
+/* set object modes */
+void ED_gpencil_setup_modes(bContext *C, bGPdata *gpd, int newmode)
+{
+	if (!gpd) {
+		return;
+	}
+
+	switch (newmode) {
+		case OB_MODE_GPENCIL_EDIT:
+			gpd->flag |= GP_DATA_STROKE_EDITMODE;
+			gpd->flag &= ~GP_DATA_STROKE_PAINTMODE;
+			gpd->flag &= ~GP_DATA_STROKE_SCULPTMODE;
+			gpd->flag &= ~GP_DATA_STROKE_WEIGHTMODE;
+			ED_gpencil_toggle_brush_cursor(C, false, NULL);
+			break;
+		case OB_MODE_GPENCIL_PAINT:
+			gpd->flag &= ~GP_DATA_STROKE_EDITMODE;
+			gpd->flag |= GP_DATA_STROKE_PAINTMODE;
+			gpd->flag &= ~GP_DATA_STROKE_SCULPTMODE;
+			gpd->flag &= ~GP_DATA_STROKE_WEIGHTMODE;
+			ED_gpencil_toggle_brush_cursor(C, true, NULL);
+			break;
+		case OB_MODE_GPENCIL_SCULPT:
+			gpd->flag &= ~GP_DATA_STROKE_EDITMODE;
+			gpd->flag &= ~GP_DATA_STROKE_PAINTMODE;
+			gpd->flag |= GP_DATA_STROKE_SCULPTMODE;
+			gpd->flag &= ~GP_DATA_STROKE_WEIGHTMODE;
+			gpencil_verify_brush_type(C, OB_MODE_GPENCIL_SCULPT);
+			ED_gpencil_toggle_brush_cursor(C, true, NULL);
+			break;
+		case OB_MODE_GPENCIL_WEIGHT:
+			gpd->flag &= ~GP_DATA_STROKE_EDITMODE;
+			gpd->flag &= ~GP_DATA_STROKE_PAINTMODE;
+			gpd->flag &= ~GP_DATA_STROKE_SCULPTMODE;
+			gpd->flag |= GP_DATA_STROKE_WEIGHTMODE;
+			gpencil_verify_brush_type(C, OB_MODE_GPENCIL_WEIGHT);
+			ED_gpencil_toggle_brush_cursor(C, true, NULL);
+			break;
+		default:
+			gpd->flag &= ~GP_DATA_STROKE_EDITMODE;
+			gpd->flag &= ~GP_DATA_STROKE_PAINTMODE;
+			gpd->flag &= ~GP_DATA_STROKE_SCULPTMODE;
+			gpd->flag &= ~GP_DATA_STROKE_WEIGHTMODE;
+			ED_gpencil_toggle_brush_cursor(C, false, NULL);
+			break;
+	}
+}
+
+/* helper to convert 2d to 3d for simple drawing buffer */
+static void gpencil_stroke_convertcoords(ARegion *ar, const tGPspoint *point2D, float origin[3], float out[3])
+{
+	float mval_f[2] = { (float)point2D->x, (float)point2D->y };
+	float mval_prj[2];
+	float rvec[3], dvec[3];
+	float zfac;
+
+	copy_v3_v3(rvec, origin);
+
+	zfac = ED_view3d_calc_zfac(ar->regiondata, rvec, NULL);
+
+	if (ED_view3d_project_float_global(ar, rvec, mval_prj, V3D_PROJ_TEST_NOP) == V3D_PROJ_RET_OK) {
+		sub_v2_v2v2(mval_f, mval_prj, mval_f);
+		ED_view3d_win_to_delta(ar, mval_f, dvec, zfac);
+		sub_v3_v3v3(out, rvec, dvec);
+	}
+	else {
+		zero_v3(out);
+	}
+}
+
+/* convert 2d tGPspoint to 3d bGPDspoint */
+void ED_gpencil_tpoint_to_point(ARegion *ar, float origin[3], const tGPspoint *tpt, bGPDspoint *pt)
+{
+	float p3d[3];
+	/* conversion to 3d format */
+	gpencil_stroke_convertcoords(ar, tpt, origin, p3d);
+	copy_v3_v3(&pt->x, p3d);
+
+	pt->pressure = tpt->pressure;
+	pt->strength = tpt->strength;
+	pt->uv_fac = tpt->uv_fac;
+	pt->uv_rot = tpt->uv_rot;
+}
+
+/* texture coordinate utilities */
+void ED_gpencil_calc_stroke_uv(Object *ob, bGPDstroke *gps)
+{
+	if (gps == NULL) {
+		return;
+	}
+	MaterialGPencilStyle *gp_style = BKE_material_gpencil_settings_get(ob, gps->mat_nr + 1);
+	float pixsize;
+	if (gp_style) {
+		pixsize = gp_style->texture_pixsize / 1000000.0f;
+	}
+	else {
+		/* use this value by default */
+		pixsize = 0.000100f;
+	}
+	pixsize = MAX2(pixsize, 0.0000001f);
+
+	bGPDspoint *pt = NULL;
+	bGPDspoint *ptb = NULL;
+	int i;
+	float totlen = 0;
+
+	/* first read all points and calc distance */
+	for (i = 0; i < gps->totpoints; i++) {
+		pt = &gps->points[i];
+		/* first point */
+		if (i == 0) {
+			pt->uv_fac = 0.0f;
+			continue;
+		}
+
+		ptb = &gps->points[i - 1];
+		totlen += len_v3v3(&pt->x, &ptb->x) / pixsize;
+		pt->uv_fac = totlen;
+	}
+	/* normalize the distance using a factor */
+	float factor;
+	/* if image, use texture width */
+	if ((gp_style) && (gp_style->sima)) {
+		factor = gp_style->sima->gen_x;
+	}
+	else {
+		factor = totlen;
+	}
+	for (i = 0; i < gps->totpoints; i++) {
+		pt = &gps->points[i];
+		pt->uv_fac /= factor;
+	}
+}
+
+/* recalc uv for any stroke using the material */
+void ED_gpencil_update_color_uv(Main *bmain, Material *mat)
+{
+	Material *gps_ma = NULL;
+	/* read all strokes  */
+	for (Object *ob = bmain->object.first; ob; ob = ob->id.next) {
+		if (ob->type == OB_GPENCIL) {
+			bGPdata *gpd = ob->data;
+			if (gpd == NULL) {
+				continue;
+			}
+
+			for (bGPDlayer *gpl = gpd->layers.first; gpl; gpl = gpl->next) {
+				/* only editable and visible layers are considered */
+				if (gpencil_layer_is_editable(gpl)) {
+					for (bGPDframe *gpf = gpl->frames.first; gpf; gpf = gpf->next) {
+						for (bGPDstroke *gps = gpf->strokes.first; gps; gps = gps->next) {
+							/* check if it is editable */
+							if (ED_gpencil_stroke_color_use(ob, gpl, gps) == false) {
+								continue;
+							}
+							gps_ma = give_current_material(ob, gps->mat_nr + 1);
+							/* update */
+							if ((gps_ma) && (gps_ma == mat)) {
+								ED_gpencil_calc_stroke_uv(ob, gps);
+							}
+						}
+					}
+				}
+			}
+		}
+	}
 }
 /* ******************************************************** */