GP: New Curve primitive and other primitive improvements

This commit adds support for new curve tool and adds more functionalities to the existing primitives, including new handles, editing, stroke thickness curve, noise, preview of the real stroke, etc.

Thanks to @charlie for his great contribution to this improvement.

1 files changed, 12 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/scene.c b/source/blender/blenkernel/intern/scene.c
index a070bf97317..3894d83c169 100644
--- a/source/blender/blenkernel/intern/scene.c
+++ b/source/blender/blenkernel/intern/scene.c
@@ -188,6 +188,7 @@ ToolSettings *BKE_toolsettings_copy(ToolSettings *toolsettings, const int flag)
 	ts->gp_interpolate.custom_ipo = curvemapping_copy(ts->gp_interpolate.custom_ipo);
 	/* duplicate Grease Pencil multiframe fallof */
 	ts->gp_sculpt.cur_falloff = curvemapping_copy(ts->gp_sculpt.cur_falloff);
+	ts->gp_sculpt.cur_primitive = curvemapping_copy(ts->gp_sculpt.cur_primitive);
 	return ts;
 }
 
@@ -226,6 +227,9 @@ void BKE_toolsettings_free(ToolSettings *toolsettings)
 	if (toolsettings->gp_sculpt.cur_falloff) {
 		curvemapping_free(toolsettings->gp_sculpt.cur_falloff);
 	}
+	if (toolsettings->gp_sculpt.cur_primitive) {
+		curvemapping_free(toolsettings->gp_sculpt.cur_primitive);
+	}
 
 	MEM_freeN(toolsettings);
 }
@@ -699,6 +703,14 @@ void BKE_scene_init(Scene *sce)
 		CURVE_PRESET_GAUSS,
 		CURVEMAP_SLOPE_POSITIVE);
 
+	sce->toolsettings->gp_sculpt.cur_primitive = curvemapping_add(1, 0.0f, 0.0f, 1.0f, 1.0f);
+	CurveMapping *gp_primitive_curve = sce->toolsettings->gp_sculpt.cur_primitive;
+	curvemapping_initialize(gp_primitive_curve);
+	curvemap_reset(gp_primitive_curve->cm,
+		&gp_primitive_curve->clipr,
+		CURVE_PRESET_BELL,
+		CURVEMAP_SLOPE_POSITIVE);
+
 	sce->physics_settings.gravity[0] = 0.0f;
 	sce->physics_settings.gravity[1] = 0.0f;
 	sce->physics_settings.gravity[2] = -9.81f;