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Diffstat (limited to 'source/blender/draw/intern/draw_cache.c')
| -rw-r--r-- | source/blender/draw/intern/draw_cache.c | 2708 |
1 files changed, 2708 insertions, 0 deletions
diff --git a/source/blender/draw/intern/draw_cache.c b/source/blender/draw/intern/draw_cache.c new file mode 100644 index 00000000000..3b4180c0375 --- /dev/null +++ b/source/blender/draw/intern/draw_cache.c @@ -0,0 +1,2708 @@ +/* + * Copyright 2016, Blender Foundation. + * + * 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. + * + * Contributor(s): Blender Institute + * + */ + +/** \file draw_cache.c + * \ingroup draw + */ + + +#include "DNA_scene_types.h" +#include "DNA_mesh_types.h" +#include "DNA_curve_types.h" +#include "DNA_object_types.h" +#include "DNA_particle_types.h" +#include "DNA_modifier_types.h" +#include "DNA_lattice_types.h" + +#include "BLI_utildefines.h" +#include "BLI_math.h" + +#include "GPU_batch.h" + +#include "draw_cache.h" +#include "draw_cache_impl.h" + +/* Batch's only (free'd as an array) */ +static struct DRWShapeCache { + Gwn_Batch *drw_single_vertice; + Gwn_Batch *drw_fullscreen_quad; + Gwn_Batch *drw_quad; + Gwn_Batch *drw_screenspace_circle; + Gwn_Batch *drw_plain_axes; + Gwn_Batch *drw_single_arrow; + Gwn_Batch *drw_cube; + Gwn_Batch *drw_circle; + Gwn_Batch *drw_square; + Gwn_Batch *drw_line; + Gwn_Batch *drw_line_endpoints; + Gwn_Batch *drw_empty_sphere; + Gwn_Batch *drw_empty_cone; + Gwn_Batch *drw_arrows; + Gwn_Batch *drw_axis_names; + Gwn_Batch *drw_image_plane; + Gwn_Batch *drw_image_plane_wire; + Gwn_Batch *drw_field_wind; + Gwn_Batch *drw_field_force; + Gwn_Batch *drw_field_vortex; + Gwn_Batch *drw_field_tube_limit; + Gwn_Batch *drw_field_cone_limit; + Gwn_Batch *drw_lamp; + Gwn_Batch *drw_lamp_shadows; + Gwn_Batch *drw_lamp_sunrays; + Gwn_Batch *drw_lamp_area; + Gwn_Batch *drw_lamp_hemi; + Gwn_Batch *drw_lamp_spot; + Gwn_Batch *drw_lamp_spot_square; + Gwn_Batch *drw_speaker; + Gwn_Batch *drw_lightprobe_cube; + Gwn_Batch *drw_lightprobe_planar; + Gwn_Batch *drw_lightprobe_grid; + Gwn_Batch *drw_bone_octahedral; + Gwn_Batch *drw_bone_octahedral_wire; + Gwn_Batch *drw_bone_box; + Gwn_Batch *drw_bone_box_wire; + Gwn_Batch *drw_bone_wire_wire; + Gwn_Batch *drw_bone_envelope; + Gwn_Batch *drw_bone_envelope_distance; + Gwn_Batch *drw_bone_envelope_wire; + Gwn_Batch *drw_bone_envelope_head_wire; + Gwn_Batch *drw_bone_point; + Gwn_Batch *drw_bone_point_wire; + Gwn_Batch *drw_bone_arrows; + Gwn_Batch *drw_camera; + Gwn_Batch *drw_camera_frame; + Gwn_Batch *drw_camera_tria; + Gwn_Batch *drw_camera_focus; + Gwn_Batch *drw_particle_cross; + Gwn_Batch *drw_particle_circle; + Gwn_Batch *drw_particle_axis; +} SHC = {NULL}; + +void DRW_shape_cache_free(void) +{ + uint i = sizeof(SHC) / sizeof(Gwn_Batch *); + Gwn_Batch **batch = (Gwn_Batch **)&SHC; + while (i--) { + GWN_BATCH_DISCARD_SAFE(*batch); + batch++; + } +} + + +/* -------------------------------------------------------------------- */ + +/** \name Helper functions + * \{ */ + +static void add_fancy_edge( + Gwn_VertBuf *vbo, unsigned int pos_id, unsigned int n1_id, unsigned int n2_id, + unsigned int *v_idx, const float co1[3], const float co2[3], +const float n1[3], const float n2[3]) +{ + GWN_vertbuf_attr_set(vbo, n1_id, *v_idx, n1); + GWN_vertbuf_attr_set(vbo, n2_id, *v_idx, n2); + GWN_vertbuf_attr_set(vbo, pos_id, (*v_idx)++, co1); + + GWN_vertbuf_attr_set(vbo, n1_id, *v_idx, n1); + GWN_vertbuf_attr_set(vbo, n2_id, *v_idx, n2); + GWN_vertbuf_attr_set(vbo, pos_id, (*v_idx)++, co2); +} + +static void add_lat_lon_vert( + Gwn_VertBuf *vbo, unsigned int pos_id, unsigned int nor_id, + unsigned int *v_idx, const float rad, const float lat, const float lon) +{ + float pos[3], nor[3]; + nor[0] = sinf(lat) * cosf(lon); + nor[1] = cosf(lat); + nor[2] = sinf(lat) * sinf(lon); + mul_v3_v3fl(pos, nor, rad); + + GWN_vertbuf_attr_set(vbo, nor_id, *v_idx, nor); + GWN_vertbuf_attr_set(vbo, pos_id, (*v_idx)++, pos); +} + +static Gwn_VertBuf *fill_arrows_vbo(const float scale) +{ + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + /* Line */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 6 * 3); + + float v1[3] = {0.0, 0.0, 0.0}; + float v2[3] = {0.0, 0.0, 0.0}; + float vtmp1[3], vtmp2[3]; + + for (int axis = 0; axis < 3; axis++) { + const int arrow_axis = (axis == 0) ? 1 : 0; + + v2[axis] = 1.0f; + mul_v3_v3fl(vtmp1, v1, scale); + mul_v3_v3fl(vtmp2, v2, scale); + GWN_vertbuf_attr_set(vbo, attr_id.pos, axis * 6 + 0, vtmp1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, axis * 6 + 1, vtmp2); + + v1[axis] = 0.85f; + v1[arrow_axis] = -0.08f; + mul_v3_v3fl(vtmp1, v1, scale); + mul_v3_v3fl(vtmp2, v2, scale); + GWN_vertbuf_attr_set(vbo, attr_id.pos, axis * 6 + 2, vtmp1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, axis * 6 + 3, vtmp2); + + v1[arrow_axis] = 0.08f; + mul_v3_v3fl(vtmp1, v1, scale); + mul_v3_v3fl(vtmp2, v2, scale); + GWN_vertbuf_attr_set(vbo, attr_id.pos, axis * 6 + 4, vtmp1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, axis * 6 + 5, vtmp2); + + /* reset v1 & v2 to zero */ + v1[arrow_axis] = v1[axis] = v2[axis] = 0.0f; + } + + return vbo; +} + +static Gwn_VertBuf *sphere_wire_vbo(const float rad) +{ +#define NSEGMENTS 32 + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, NSEGMENTS * 2 * 3); + + /* a single ring of vertices */ + float p[NSEGMENTS][2]; + for (int i = 0; i < NSEGMENTS; ++i) { + float angle = 2 * M_PI * ((float)i / (float)NSEGMENTS); + p[i][0] = rad * cosf(angle); + p[i][1] = rad * sinf(angle); + } + + for (int axis = 0; axis < 3; ++axis) { + for (int i = 0; i < NSEGMENTS; ++i) { + for (int j = 0; j < 2; ++j) { + float cv[2], v[3]; + + cv[0] = p[(i + j) % NSEGMENTS][0]; + cv[1] = p[(i + j) % NSEGMENTS][1]; + + if (axis == 0) + v[0] = cv[0], v[1] = cv[1], v[2] = 0.0f; + else if (axis == 1) + v[0] = cv[0], v[1] = 0.0f, v[2] = cv[1]; + else + v[0] = 0.0f, v[1] = cv[0], v[2] = cv[1]; + + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * 2 + j + (NSEGMENTS * 2 * axis), v); + } + } + } + + return vbo; +#undef NSEGMENTS +} + +/* Quads */ +/* Use this one for rendering fullscreen passes. For 3D objects use DRW_cache_quad_get(). */ +Gwn_Batch *DRW_cache_fullscreen_quad_get(void) +{ + if (!SHC.drw_fullscreen_quad) { + /* Use a triangle instead of a real quad */ + /* https://www.slideshare.net/DevCentralAMD/vertex-shader-tricks-bill-bilodeau - slide 14 */ + float pos[3][2] = {{-1.0f, -1.0f}, { 3.0f, -1.0f}, {-1.0f, 3.0f}}; + float uvs[3][2] = {{ 0.0f, 0.0f}, { 2.0f, 0.0f}, { 0.0f, 2.0f}}; + + /* Position Only 2D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos, uvs; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + attr_id.uvs = GWN_vertformat_attr_add(&format, "uvs", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 3); + + for (int i = 0; i < 3; ++i) { + GWN_vertbuf_attr_set(vbo, attr_id.pos, i, pos[i]); + GWN_vertbuf_attr_set(vbo, attr_id.uvs, i, uvs[i]); + } + + SHC.drw_fullscreen_quad = GWN_batch_create_ex(GWN_PRIM_TRIS, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_fullscreen_quad; +} + +/* Just a regular quad with 4 vertices. */ +Gwn_Batch *DRW_cache_quad_get(void) +{ + if (!SHC.drw_quad) { + /* Use a triangle instead of a real quad */ + float pos[4][2] = {{-1.0f, -1.0f}, { 1.0f, -1.0f}, {1.0f, 1.0f}, {-1.0f, 1.0f}}; + float uvs[4][2] = {{ 0.0f, 0.0f}, { 1.0f, 0.0f}, {1.0f, 1.0f}, { 0.0f, 1.0f}}; + + /* Position Only 2D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos, uvs; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + attr_id.uvs = GWN_vertformat_attr_add(&format, "uvs", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 4); + + for (int i = 0; i < 4; ++i) { + GWN_vertbuf_attr_set(vbo, attr_id.pos, i, pos[i]); + GWN_vertbuf_attr_set(vbo, attr_id.uvs, i, uvs[i]); + } + + SHC.drw_quad = GWN_batch_create_ex(GWN_PRIM_TRI_FAN, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_quad; +} + +/* Sphere */ +Gwn_Batch *DRW_cache_sphere_get(void) +{ + return GPU_batch_preset_sphere(2); +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Common + * \{ */ + +Gwn_Batch *DRW_cache_cube_get(void) +{ + if (!SHC.drw_cube) { + const GLfloat verts[8][3] = { + {-1.0f, -1.0f, -1.0f}, + {-1.0f, -1.0f, 1.0f}, + {-1.0f, 1.0f, -1.0f}, + {-1.0f, 1.0f, 1.0f}, + { 1.0f, -1.0f, -1.0f}, + { 1.0f, -1.0f, 1.0f}, + { 1.0f, 1.0f, -1.0f}, + { 1.0f, 1.0f, 1.0f} + }; + + const GLubyte indices[24] = {0, 1, 1, 3, 3, 2, 2, 0, 0, 4, 4, 5, 5, 7, 7, 6, 6, 4, 1, 5, 3, 7, 2, 6}; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 24); + + for (int i = 0; i < 24; ++i) { + GWN_vertbuf_attr_set(vbo, attr_id.pos, i, verts[indices[i]]); + } + + SHC.drw_cube = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_cube; +} + +Gwn_Batch *DRW_cache_circle_get(void) +{ +#define CIRCLE_RESOL 32 + if (!SHC.drw_circle) { + float v[3] = {0.0f, 0.0f, 0.0f}; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, CIRCLE_RESOL * 2); + + for (int a = 0; a < CIRCLE_RESOL; a++) { + v[0] = sinf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[2] = cosf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[1] = 0.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, a * 2, v); + + v[0] = sinf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + v[2] = cosf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + v[1] = 0.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, a * 2 + 1, v); + } + + SHC.drw_circle = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_circle; +#undef CIRCLE_RESOL +} + +Gwn_Batch *DRW_cache_square_get(void) +{ + if (!SHC.drw_square) { + float p[4][3] = {{ 1.0f, 0.0f, 1.0f}, + { 1.0f, 0.0f, -1.0f}, + {-1.0f, 0.0f, -1.0f}, + {-1.0f, 0.0f, 1.0f}}; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 8); + + for (int i = 0; i < 4; i++) { + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * 2, p[i % 4]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * 2 + 1, p[(i + 1) % 4]); + } + + SHC.drw_square = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_square; +} + +Gwn_Batch *DRW_cache_single_line_get(void) +{ + /* Z axis line */ + if (!SHC.drw_line) { + float v1[3] = {0.0f, 0.0f, 0.0f}; + float v2[3] = {0.0f, 0.0f, 1.0f}; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 2); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, 0, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 1, v2); + + SHC.drw_line = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_line; +} + +Gwn_Batch *DRW_cache_single_line_endpoints_get(void) +{ + /* Z axis line */ + if (!SHC.drw_line_endpoints) { + float v1[3] = {0.0f, 0.0f, 0.0f}; + float v2[3] = {0.0f, 0.0f, 1.0f}; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 2); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, 0, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 1, v2); + + SHC.drw_line_endpoints = GWN_batch_create_ex(GWN_PRIM_POINTS, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_line_endpoints; +} + +Gwn_Batch *DRW_cache_screenspace_circle_get(void) +{ +#define CIRCLE_RESOL 32 + if (!SHC.drw_screenspace_circle) { + float v[3] = {0.0f, 0.0f, 0.0f}; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, CIRCLE_RESOL + 1); + + for (int a = 0; a <= CIRCLE_RESOL; a++) { + v[0] = sinf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[1] = cosf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + GWN_vertbuf_attr_set(vbo, attr_id.pos, a, v); + } + + SHC.drw_screenspace_circle = GWN_batch_create_ex(GWN_PRIM_LINE_STRIP, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_screenspace_circle; +#undef CIRCLE_RESOL +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Common Object API + * \{ */ + +Gwn_Batch *DRW_cache_object_wire_outline_get(Object *ob) +{ + switch (ob->type) { + case OB_MESH: + return DRW_cache_mesh_wire_outline_get(ob); + + /* TODO, should match 'DRW_cache_object_surface_get' */ + default: + return NULL; + } +} + +Gwn_Batch *DRW_cache_object_surface_get(Object *ob) +{ + switch (ob->type) { + case OB_MESH: + return DRW_cache_mesh_surface_get(ob); + case OB_CURVE: + return DRW_cache_curve_surface_get(ob); + case OB_SURF: + return DRW_cache_surf_surface_get(ob); + case OB_FONT: + return DRW_cache_text_surface_get(ob); + case OB_MBALL: + return DRW_cache_mball_surface_get(ob); + default: + return NULL; + } +} + +Gwn_Batch **DRW_cache_object_surface_material_get( + struct Object *ob, struct GPUMaterial **gpumat_array, uint gpumat_array_len) +{ + switch (ob->type) { + case OB_MESH: + return DRW_cache_mesh_surface_shaded_get(ob, gpumat_array, gpumat_array_len); + case OB_CURVE: + return DRW_cache_curve_surface_shaded_get(ob, gpumat_array, gpumat_array_len); + case OB_SURF: + return DRW_cache_surf_surface_shaded_get(ob, gpumat_array, gpumat_array_len); + case OB_FONT: + return DRW_cache_text_surface_shaded_get(ob, gpumat_array, gpumat_array_len); + default: + return NULL; + } +} + +/** \} */ + + +/* -------------------------------------------------------------------- */ + +/** \name Empties + * \{ */ + +Gwn_Batch *DRW_cache_plain_axes_get(void) +{ + if (!SHC.drw_plain_axes) { + int axis; + float v1[3] = {0.0f, 0.0f, 0.0f}; + float v2[3] = {0.0f, 0.0f, 0.0f}; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 6); + + for (axis = 0; axis < 3; axis++) { + v1[axis] = 1.0f; + v2[axis] = -1.0f; + + GWN_vertbuf_attr_set(vbo, attr_id.pos, axis * 2, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, axis * 2 + 1, v2); + + /* reset v1 & v2 to zero for next axis */ + v1[axis] = v2[axis] = 0.0f; + } + + SHC.drw_plain_axes = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_plain_axes; +} + +Gwn_Batch *DRW_cache_single_arrow_get(void) +{ + if (!SHC.drw_single_arrow) { + float v1[3] = {0.0f, 0.0f, 1.0f}, v2[3], v3[3]; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + /* Square Pyramid */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 12); + + v2[0] = 0.035f; v2[1] = 0.035f; + v3[0] = -0.035f; v3[1] = 0.035f; + v2[2] = v3[2] = 0.75f; + + for (int sides = 0; sides < 4; sides++) { + if (sides % 2 == 1) { + v2[0] = -v2[0]; + v3[1] = -v3[1]; + } + else { + v2[1] = -v2[1]; + v3[0] = -v3[0]; + } + + GWN_vertbuf_attr_set(vbo, attr_id.pos, sides * 3 + 0, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, sides * 3 + 1, v2); + GWN_vertbuf_attr_set(vbo, attr_id.pos, sides * 3 + 2, v3); + } + + SHC.drw_single_arrow = GWN_batch_create_ex(GWN_PRIM_TRIS, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_single_arrow; +} + +Gwn_Batch *DRW_cache_empty_sphere_get(void) +{ + if (!SHC.drw_empty_sphere) { + Gwn_VertBuf *vbo = sphere_wire_vbo(1.0f); + SHC.drw_empty_sphere = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_empty_sphere; +} + +Gwn_Batch *DRW_cache_empty_cone_get(void) +{ +#define NSEGMENTS 8 + if (!SHC.drw_empty_cone) { + /* a single ring of vertices */ + float p[NSEGMENTS][2]; + for (int i = 0; i < NSEGMENTS; ++i) { + float angle = 2 * M_PI * ((float)i / (float)NSEGMENTS); + p[i][0] = cosf(angle); + p[i][1] = sinf(angle); + } + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, NSEGMENTS * 4); + + for (int i = 0; i < NSEGMENTS; ++i) { + float cv[2], v[3]; + cv[0] = p[(i) % NSEGMENTS][0]; + cv[1] = p[(i) % NSEGMENTS][1]; + + /* cone sides */ + v[0] = cv[0], v[1] = 0.0f, v[2] = cv[1]; + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * 4, v); + v[0] = 0.0f, v[1] = 2.0f, v[2] = 0.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * 4 + 1, v); + + /* end ring */ + v[0] = cv[0], v[1] = 0.0f, v[2] = cv[1]; + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * 4 + 2, v); + cv[0] = p[(i + 1) % NSEGMENTS][0]; + cv[1] = p[(i + 1) % NSEGMENTS][1]; + v[0] = cv[0], v[1] = 0.0f, v[2] = cv[1]; + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * 4 + 3, v); + } + + SHC.drw_empty_cone = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_empty_cone; +#undef NSEGMENTS +} + +Gwn_Batch *DRW_cache_arrows_get(void) +{ + if (!SHC.drw_arrows) { + Gwn_VertBuf *vbo = fill_arrows_vbo(1.0f); + + SHC.drw_arrows = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_arrows; +} + +Gwn_Batch *DRW_cache_axis_names_get(void) +{ + if (!SHC.drw_axis_names) { + const float size = 0.1f; + float v1[3], v2[3]; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + /* Using 3rd component as axis indicator */ + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + /* Line */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 14); + + /* X */ + copy_v3_fl3(v1, -size, size, 0.0f); + copy_v3_fl3(v2, size, -size, 0.0f); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 0, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 1, v2); + + copy_v3_fl3(v1, size, size, 0.0f); + copy_v3_fl3(v2, -size, -size, 0.0f); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 2, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 3, v2); + + /* Y */ + copy_v3_fl3(v1, -size + 0.25f * size, size, 1.0f); + copy_v3_fl3(v2, 0.0f, 0.0f, 1.0f); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 4, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 5, v2); + + copy_v3_fl3(v1, size - 0.25f * size, size, 1.0f); + copy_v3_fl3(v2, -size + 0.25f * size, -size, 1.0f); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 6, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 7, v2); + + /* Z */ + copy_v3_fl3(v1, -size, size, 2.0f); + copy_v3_fl3(v2, size, size, 2.0f); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 8, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 9, v2); + + copy_v3_fl3(v1, size, size, 2.0f); + copy_v3_fl3(v2, -size, -size, 2.0f); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 10, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 11, v2); + + copy_v3_fl3(v1, -size, -size, 2.0f); + copy_v3_fl3(v2, size, -size, 2.0f); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 12, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 13, v2); + + SHC.drw_axis_names = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_axis_names; +} + +Gwn_Batch *DRW_cache_image_plane_get(void) +{ + if (!SHC.drw_image_plane) { + const float quad[4][2] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}}; + static Gwn_VertFormat format = { 0 }; + static struct { uint pos, texCoords; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + attr_id.texCoords = GWN_vertformat_attr_add(&format, "texCoord", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + } + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 4); + for (uint j = 0; j < 4; j++) { + GWN_vertbuf_attr_set(vbo, attr_id.pos, j, quad[j]); + GWN_vertbuf_attr_set(vbo, attr_id.texCoords, j, quad[j]); + } + SHC.drw_image_plane = GWN_batch_create_ex(GWN_PRIM_TRI_FAN, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_image_plane; +} + +Gwn_Batch *DRW_cache_image_plane_wire_get(void) +{ + if (!SHC.drw_image_plane_wire) { + const float quad[4][2] = {{0, 0}, {1, 0}, {1, 1}, {0, 1}}; + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + } + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 4); + for (uint j = 0; j < 4; j++) { + GWN_vertbuf_attr_set(vbo, attr_id.pos, j, quad[j]); + } + SHC.drw_image_plane_wire = GWN_batch_create_ex(GWN_PRIM_LINE_LOOP, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_image_plane_wire; +} + +/* Force Field */ +Gwn_Batch *DRW_cache_field_wind_get(void) +{ +#define CIRCLE_RESOL 32 + if (!SHC.drw_field_wind) { + float v[3] = {0.0f, 0.0f, 0.0f}; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, CIRCLE_RESOL * 2 * 4); + + for (int i = 0; i < 4; i++) { + float z = 0.05f * (float)i; + for (int a = 0; a < CIRCLE_RESOL; a++) { + v[0] = sinf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[1] = cosf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[2] = z; + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * CIRCLE_RESOL * 2 + a * 2, v); + + v[0] = sinf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + v[1] = cosf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + v[2] = z; + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * CIRCLE_RESOL * 2 + a * 2 + 1, v); + } + } + + SHC.drw_field_wind = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_field_wind; +#undef CIRCLE_RESOL +} + +Gwn_Batch *DRW_cache_field_force_get(void) +{ +#define CIRCLE_RESOL 32 + if (!SHC.drw_field_force) { + float v[3] = {0.0f, 0.0f, 0.0f}; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, CIRCLE_RESOL * 2 * 3); + + for (int i = 0; i < 3; i++) { + float radius = 1.0f + 0.5f * (float)i; + for (int a = 0; a < CIRCLE_RESOL; a++) { + v[0] = radius * sinf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[1] = radius * cosf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[2] = 0.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * CIRCLE_RESOL * 2 + a * 2, v); + + v[0] = radius * sinf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + v[1] = radius * cosf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + v[2] = 0.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * CIRCLE_RESOL * 2 + a * 2 + 1, v); + } + } + + SHC.drw_field_force = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_field_force; +#undef CIRCLE_RESOL +} + +Gwn_Batch *DRW_cache_field_vortex_get(void) +{ +#define SPIRAL_RESOL 32 + if (!SHC.drw_field_vortex) { + float v[3] = {0.0f, 0.0f, 0.0f}; + unsigned int v_idx = 0; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, SPIRAL_RESOL * 2 + 1); + + for (int a = SPIRAL_RESOL; a > -1; a--) { + v[0] = sinf((2.0f * M_PI * a) / ((float)SPIRAL_RESOL)) * (a / (float)SPIRAL_RESOL); + v[1] = cosf((2.0f * M_PI * a) / ((float)SPIRAL_RESOL)) * (a / (float)SPIRAL_RESOL); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v); + } + + for (int a = 1; a <= SPIRAL_RESOL; a++) { + v[0] = -sinf((2.0f * M_PI * a) / ((float)SPIRAL_RESOL)) * (a / (float)SPIRAL_RESOL); + v[1] = -cosf((2.0f * M_PI * a) / ((float)SPIRAL_RESOL)) * (a / (float)SPIRAL_RESOL); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v); + } + + SHC.drw_field_vortex = GWN_batch_create_ex(GWN_PRIM_LINE_STRIP, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_field_vortex; +#undef SPIRAL_RESOL +} + +Gwn_Batch *DRW_cache_field_tube_limit_get(void) +{ +#define CIRCLE_RESOL 32 + if (!SHC.drw_field_tube_limit) { + float v[3] = {0.0f, 0.0f, 0.0f}; + unsigned int v_idx = 0; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, CIRCLE_RESOL * 2 * 2 + 8); + + /* Caps */ + for (int i = 0; i < 2; i++) { + float z = (float)i * 2.0f - 1.0f; + for (int a = 0; a < CIRCLE_RESOL; a++) { + v[0] = sinf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[1] = cosf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[2] = z; + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v); + + v[0] = sinf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + v[1] = cosf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + v[2] = z; + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v); + } + } + /* Side Edges */ + for (int a = 0; a < 4; a++) { + for (int i = 0; i < 2; i++) { + float z = (float)i * 2.0f - 1.0f; + v[0] = sinf((2.0f * M_PI * a) / 4.0f); + v[1] = cosf((2.0f * M_PI * a) / 4.0f); + v[2] = z; + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v); + } + } + + SHC.drw_field_tube_limit = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_field_tube_limit; +#undef CIRCLE_RESOL +} + +Gwn_Batch *DRW_cache_field_cone_limit_get(void) +{ +#define CIRCLE_RESOL 32 + if (!SHC.drw_field_cone_limit) { + float v[3] = {0.0f, 0.0f, 0.0f}; + unsigned int v_idx = 0; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, CIRCLE_RESOL * 2 * 2 + 8); + + /* Caps */ + for (int i = 0; i < 2; i++) { + float z = (float)i * 2.0f - 1.0f; + for (int a = 0; a < CIRCLE_RESOL; a++) { + v[0] = sinf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[1] = cosf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[2] = z; + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v); + + v[0] = sinf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + v[1] = cosf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + v[2] = z; + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v); + } + } + /* Side Edges */ + for (int a = 0; a < 4; a++) { + for (int i = 0; i < 2; i++) { + float z = (float)i * 2.0f - 1.0f; + v[0] = z * sinf((2.0f * M_PI * a) / 4.0f); + v[1] = z * cosf((2.0f * M_PI * a) / 4.0f); + v[2] = z; + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v); + } + } + + SHC.drw_field_cone_limit = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_field_cone_limit; +#undef CIRCLE_RESOL +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Lamps + * \{ */ + +Gwn_Batch *DRW_cache_lamp_get(void) +{ +#define NSEGMENTS 8 + if (!SHC.drw_lamp) { + float v[2]; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, NSEGMENTS * 2); + + for (int a = 0; a < NSEGMENTS * 2; a += 2) { + v[0] = sinf((2.0f * M_PI * a) / ((float)NSEGMENTS * 2)); + v[1] = cosf((2.0f * M_PI * a) / ((float)NSEGMENTS * 2)); + GWN_vertbuf_attr_set(vbo, attr_id.pos, a, v); + + v[0] = sinf((2.0f * M_PI * (a + 1)) / ((float)NSEGMENTS * 2)); + v[1] = cosf((2.0f * M_PI * (a + 1)) / ((float)NSEGMENTS * 2)); + GWN_vertbuf_attr_set(vbo, attr_id.pos, a + 1, v); + } + + SHC.drw_lamp = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_lamp; +#undef NSEGMENTS +} + +Gwn_Batch *DRW_cache_lamp_shadows_get(void) +{ +#define NSEGMENTS 10 + if (!SHC.drw_lamp_shadows) { + float v[2]; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, NSEGMENTS * 2); + + for (int a = 0; a < NSEGMENTS * 2; a += 2) { + v[0] = sinf((2.0f * M_PI * a) / ((float)NSEGMENTS * 2)); + v[1] = cosf((2.0f * M_PI * a) / ((float)NSEGMENTS * 2)); + GWN_vertbuf_attr_set(vbo, attr_id.pos, a, v); + + v[0] = sinf((2.0f * M_PI * (a + 1)) / ((float)NSEGMENTS * 2)); + v[1] = cosf((2.0f * M_PI * (a + 1)) / ((float)NSEGMENTS * 2)); + GWN_vertbuf_attr_set(vbo, attr_id.pos, a + 1, v); + } + + SHC.drw_lamp_shadows = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_lamp_shadows; +#undef NSEGMENTS +} + +Gwn_Batch *DRW_cache_lamp_sunrays_get(void) +{ + if (!SHC.drw_lamp_sunrays) { + float v[2], v1[2], v2[2]; + + /* Position Only 2D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 2, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 32); + + for (int a = 0; a < 8; a++) { + v[0] = sinf((2.0f * M_PI * a) / 8.0f); + v[1] = cosf((2.0f * M_PI * a) / 8.0f); + + mul_v2_v2fl(v1, v, 1.6f); + mul_v2_v2fl(v2, v, 1.9f); + GWN_vertbuf_attr_set(vbo, attr_id.pos, a * 4, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, a * 4 + 1, v2); + + mul_v2_v2fl(v1, v, 2.2f); + mul_v2_v2fl(v2, v, 2.5f); + GWN_vertbuf_attr_set(vbo, attr_id.pos, a * 4 + 2, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, a * 4 + 3, v2); + } + + SHC.drw_lamp_sunrays = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_lamp_sunrays; +} + +Gwn_Batch *DRW_cache_lamp_area_get(void) +{ + if (!SHC.drw_lamp_area) { + float v1[3] = {0.0f, 0.0f, 0.0f}; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 8); + + v1[0] = v1[1] = 0.5f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, 0, v1); + v1[0] = -0.5f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, 1, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 2, v1); + v1[1] = -0.5f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, 3, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 4, v1); + v1[0] = 0.5f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, 5, v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, 6, v1); + v1[1] = 0.5f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, 7, v1); + + SHC.drw_lamp_area = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_lamp_area; +} + +Gwn_Batch *DRW_cache_lamp_hemi_get(void) +{ +#define CIRCLE_RESOL 32 + if (!SHC.drw_lamp_hemi) { + float v[3]; + int vidx = 0; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, CIRCLE_RESOL * 2 * 2 - 6 * 2 * 2); + + /* XZ plane */ + for (int a = 3; a < CIRCLE_RESOL / 2 - 3; a++) { + v[0] = sinf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL) - M_PI / 2); + v[2] = cosf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL) - M_PI / 2) - 1.0f; + v[1] = 0.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, vidx++, v); + + v[0] = sinf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL) - M_PI / 2); + v[2] = cosf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL) - M_PI / 2) - 1.0f; + v[1] = 0.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, vidx++, v); + } + + /* XY plane */ + for (int a = 3; a < CIRCLE_RESOL / 2 - 3; a++) { + v[2] = sinf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)) - 1.0f; + v[1] = cosf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[0] = 0.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, vidx++, v); + + v[2] = sinf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)) - 1.0f; + v[1] = cosf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + v[0] = 0.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, vidx++, v); + } + + /* YZ plane full circle */ + /* lease v[2] as it is */ + const float rad = cosf((2.0f * M_PI * 3) / ((float)CIRCLE_RESOL)); + for (int a = 0; a < CIRCLE_RESOL; a++) { + v[1] = rad * sinf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[0] = rad * cosf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + GWN_vertbuf_attr_set(vbo, attr_id.pos, vidx++, v); + + v[1] = rad * sinf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + v[0] = rad * cosf((2.0f * M_PI * (a + 1)) / ((float)CIRCLE_RESOL)); + GWN_vertbuf_attr_set(vbo, attr_id.pos, vidx++, v); + } + + + SHC.drw_lamp_hemi = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_lamp_hemi; +#undef CIRCLE_RESOL +} + + +Gwn_Batch *DRW_cache_lamp_spot_get(void) +{ +#define NSEGMENTS 32 + if (!SHC.drw_lamp_spot) { + /* a single ring of vertices */ + float p[NSEGMENTS][2]; + float n[NSEGMENTS][3]; + float neg[NSEGMENTS][3]; + float half_angle = 2 * M_PI / ((float)NSEGMENTS * 2); + for (int i = 0; i < NSEGMENTS; ++i) { + float angle = 2 * M_PI * ((float)i / (float)NSEGMENTS); + p[i][0] = cosf(angle); + p[i][1] = sinf(angle); + + n[i][0] = cosf(angle - half_angle); + n[i][1] = sinf(angle - half_angle); + n[i][2] = cosf(M_PI / 16.0f); /* slope of the cone */ + normalize_v3(n[i]); /* necessary ? */ + negate_v3_v3(neg[i], n[i]); + } + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos, n1, n2; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + attr_id.n1 = GWN_vertformat_attr_add(&format, "N1", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + attr_id.n2 = GWN_vertformat_attr_add(&format, "N2", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, NSEGMENTS * 4); + + for (int i = 0; i < NSEGMENTS; ++i) { + float cv[2], v[3]; + cv[0] = p[i % NSEGMENTS][0]; + cv[1] = p[i % NSEGMENTS][1]; + + /* cone sides */ + v[0] = cv[0], v[1] = cv[1], v[2] = -1.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * 4, v); + v[0] = 0.0f, v[1] = 0.0f, v[2] = 0.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * 4 + 1, v); + + GWN_vertbuf_attr_set(vbo, attr_id.n1, i * 4, n[(i) % NSEGMENTS]); + GWN_vertbuf_attr_set(vbo, attr_id.n1, i * 4 + 1, n[(i) % NSEGMENTS]); + GWN_vertbuf_attr_set(vbo, attr_id.n2, i * 4, n[(i + 1) % NSEGMENTS]); + GWN_vertbuf_attr_set(vbo, attr_id.n2, i * 4 + 1, n[(i + 1) % NSEGMENTS]); + + /* end ring */ + v[0] = cv[0], v[1] = cv[1], v[2] = -1.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * 4 + 2, v); + cv[0] = p[(i + 1) % NSEGMENTS][0]; + cv[1] = p[(i + 1) % NSEGMENTS][1]; + v[0] = cv[0], v[1] = cv[1], v[2] = -1.0f; + GWN_vertbuf_attr_set(vbo, attr_id.pos, i * 4 + 3, v); + + GWN_vertbuf_attr_set(vbo, attr_id.n1, i * 4 + 2, n[(i) % NSEGMENTS]); + GWN_vertbuf_attr_set(vbo, attr_id.n1, i * 4 + 3, n[(i) % NSEGMENTS]); + GWN_vertbuf_attr_set(vbo, attr_id.n2, i * 4 + 2, neg[(i) % NSEGMENTS]); + GWN_vertbuf_attr_set(vbo, attr_id.n2, i * 4 + 3, neg[(i) % NSEGMENTS]); + } + + SHC.drw_lamp_spot = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_lamp_spot; +#undef NSEGMENTS +} + +Gwn_Batch *DRW_cache_lamp_spot_square_get(void) +{ + if (!SHC.drw_lamp_spot_square) { + float p[5][3] = {{ 0.0f, 0.0f, 0.0f}, + { 1.0f, 1.0f, -1.0f}, + { 1.0f, -1.0f, -1.0f}, + {-1.0f, -1.0f, -1.0f}, + {-1.0f, 1.0f, -1.0f}}; + + unsigned int v_idx = 0; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 16); + + /* piramid sides */ + for (int i = 1; i <= 4; ++i) { + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, p[0]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, p[i]); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, p[(i % 4) + 1]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, p[((i + 1) % 4) + 1]); + } + + SHC.drw_lamp_spot_square = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_lamp_spot_square; +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Speaker + * \{ */ + +Gwn_Batch *DRW_cache_speaker_get(void) +{ + if (!SHC.drw_speaker) { + float v[3]; + const int segments = 16; + int vidx = 0; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 3 * segments * 2 + 4 * 4); + + for (int j = 0; j < 3; j++) { + float z = 0.25f * j - 0.125f; + float r = (j == 0 ? 0.5f : 0.25f); + + copy_v3_fl3(v, r, 0.0f, z); + GWN_vertbuf_attr_set(vbo, attr_id.pos, vidx++, v); + for (int i = 1; i < segments; i++) { + float x = cosf(2.f * (float)M_PI * i / segments) * r; + float y = sinf(2.f * (float)M_PI * i / segments) * r; + copy_v3_fl3(v, x, y, z); + GWN_vertbuf_attr_set(vbo, attr_id.pos, vidx++, v); + GWN_vertbuf_attr_set(vbo, attr_id.pos, vidx++, v); + } + copy_v3_fl3(v, r, 0.0f, z); + GWN_vertbuf_attr_set(vbo, attr_id.pos, vidx++, v); + } + + for (int j = 0; j < 4; j++) { + float x = (((j + 1) % 2) * (j - 1)) * 0.5f; + float y = ((j % 2) * (j - 2)) * 0.5f; + for (int i = 0; i < 3; i++) { + if (i == 1) { + x *= 0.5f; + y *= 0.5f; + } + + float z = 0.25f * i - 0.125f; + copy_v3_fl3(v, x, y, z); + GWN_vertbuf_attr_set(vbo, attr_id.pos, vidx++, v); + if (i == 1) { + GWN_vertbuf_attr_set(vbo, attr_id.pos, vidx++, v); + } + } + } + + SHC.drw_speaker = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_speaker; +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Probe + * \{ */ + +Gwn_Batch *DRW_cache_lightprobe_cube_get(void) +{ + if (!SHC.drw_lightprobe_cube) { + int v_idx = 0; + const float sin_pi_3 = 0.86602540378f; + const float cos_pi_3 = 0.5f; + float v[7][3] = { + {0.0f, 1.0f, 0.0f}, + {sin_pi_3, cos_pi_3, 0.0f}, + {sin_pi_3, -cos_pi_3, 0.0f}, + {0.0f, -1.0f, 0.0f}, + {-sin_pi_3, -cos_pi_3, 0.0f}, + {-sin_pi_3, cos_pi_3, 0.0f}, + {0.0f, 0.0f, 0.0f}, + }; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, (6 + 3) * 2); + + for (int i = 0; i < 6; ++i) { + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[i]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[(i + 1) % 6]); + } + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[1]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[6]); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[5]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[6]); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[3]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[6]); + + SHC.drw_lightprobe_cube = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_lightprobe_cube; +} + +Gwn_Batch *DRW_cache_lightprobe_grid_get(void) +{ + if (!SHC.drw_lightprobe_grid) { + int v_idx = 0; + const float sin_pi_3 = 0.86602540378f; + const float cos_pi_3 = 0.5f; + const float v[7][3] = { + {0.0f, 1.0f, 0.0f}, + {sin_pi_3, cos_pi_3, 0.0f}, + {sin_pi_3, -cos_pi_3, 0.0f}, + {0.0f, -1.0f, 0.0f}, + {-sin_pi_3, -cos_pi_3, 0.0f}, + {-sin_pi_3, cos_pi_3, 0.0f}, + {0.0f, 0.0f, 0.0f}, + }; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, (6 * 2 + 3) * 2); + + for (int i = 0; i < 6; ++i) { + float tmp_v1[3], tmp_v2[3], tmp_tr[3]; + copy_v3_v3(tmp_v1, v[i]); + copy_v3_v3(tmp_v2, v[(i + 1) % 6]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, tmp_v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, tmp_v2); + + /* Internal wires. */ + for (int j = 1; j < 2; ++j) { + mul_v3_v3fl(tmp_tr, v[(i / 2) * 2 + 1], -0.5f * j); + add_v3_v3v3(tmp_v1, v[i], tmp_tr); + add_v3_v3v3(tmp_v2, v[(i + 1) % 6], tmp_tr); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, tmp_v1); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, tmp_v2); + } + } + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[1]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[6]); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[5]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[6]); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[3]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[6]); + + SHC.drw_lightprobe_grid = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_lightprobe_grid; +} + +Gwn_Batch *DRW_cache_lightprobe_planar_get(void) +{ + if (!SHC.drw_lightprobe_planar) { + int v_idx = 0; + const float sin_pi_3 = 0.86602540378f; + float v[4][3] = { + {0.0f, 0.5f, 0.0f}, + {sin_pi_3, 0.0f, 0.0f}, + {0.0f, -0.5f, 0.0f}, + {-sin_pi_3, 0.0f, 0.0f}, + }; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 4 * 2); + + for (int i = 0; i < 4; ++i) { + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[i]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, v[(i + 1) % 4]); + } + + SHC.drw_lightprobe_planar = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_lightprobe_planar; +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Armature Bones + * \{ */ + +static const float bone_octahedral_verts[6][3] = { + { 0.0f, 0.0f, 0.0f}, + { 0.1f, 0.1f, 0.1f}, + { 0.1f, 0.1f, -0.1f}, + {-0.1f, 0.1f, -0.1f}, + {-0.1f, 0.1f, 0.1f}, + { 0.0f, 1.0f, 0.0f} +}; + +static const unsigned int bone_octahedral_wire[24] = { + 0, 1, 1, 5, 5, 3, 3, 0, + 0, 4, 4, 5, 5, 2, 2, 0, + 1, 2, 2, 3, 3, 4, 4, 1, +}; + +/* aligned with bone_octahedral_wire + * Contains adjacent normal index */ +static const unsigned int bone_octahedral_wire_adjacent_face[24] = { + 0, 3, 4, 7, 5, 6, 1, 2, + 2, 3, 6, 7, 4, 5, 0, 1, + 0, 4, 1, 5, 2, 6, 3, 7, +}; + +static const unsigned int bone_octahedral_solid_tris[8][3] = { + {2, 1, 0}, /* bottom */ + {3, 2, 0}, + {4, 3, 0}, + {1, 4, 0}, + + {5, 1, 2}, /* top */ + {5, 2, 3}, + {5, 3, 4}, + {5, 4, 1} +}; + +/* aligned with bone_octahedral_solid_tris */ +static const float bone_octahedral_solid_normals[8][3] = { + { M_SQRT1_2, -M_SQRT1_2, 0.00000000f}, + {-0.00000000f, -M_SQRT1_2, -M_SQRT1_2}, + {-M_SQRT1_2, -M_SQRT1_2, 0.00000000f}, + { 0.00000000f, -M_SQRT1_2, M_SQRT1_2}, + { 0.99388373f, 0.11043154f, -0.00000000f}, + { 0.00000000f, 0.11043154f, -0.99388373f}, + {-0.99388373f, 0.11043154f, 0.00000000f}, + { 0.00000000f, 0.11043154f, 0.99388373f} +}; + +Gwn_Batch *DRW_cache_bone_octahedral_get(void) +{ + if (!SHC.drw_bone_octahedral) { + unsigned int v_idx = 0; + + static Gwn_VertFormat format = { 0 }; + static struct { uint pos, nor; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + attr_id.nor = GWN_vertformat_attr_add(&format, "nor", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 24); + + for (int i = 0; i < 8; i++) { + GWN_vertbuf_attr_set(vbo, attr_id.nor, v_idx, bone_octahedral_solid_normals[i]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, bone_octahedral_verts[bone_octahedral_solid_tris[i][0]]); + GWN_vertbuf_attr_set(vbo, attr_id.nor, v_idx, bone_octahedral_solid_normals[i]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, bone_octahedral_verts[bone_octahedral_solid_tris[i][1]]); + GWN_vertbuf_attr_set(vbo, attr_id.nor, v_idx, bone_octahedral_solid_normals[i]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, bone_octahedral_verts[bone_octahedral_solid_tris[i][2]]); + } + + SHC.drw_bone_octahedral = GWN_batch_create_ex(GWN_PRIM_TRIS, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_bone_octahedral; +} + +Gwn_Batch *DRW_cache_bone_octahedral_wire_outline_get(void) +{ + if (!SHC.drw_bone_octahedral_wire) { + unsigned int v_idx = 0; + + static Gwn_VertFormat format = { 0 }; + static struct { uint pos, n1, n2; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + attr_id.n1 = GWN_vertformat_attr_add(&format, "N1", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + attr_id.n2 = GWN_vertformat_attr_add(&format, "N2", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 12 * 2); + + for (int i = 0; i < 12; i++) { + const float *co1 = bone_octahedral_verts[bone_octahedral_wire[i * 2]]; + const float *co2 = bone_octahedral_verts[bone_octahedral_wire[i * 2 + 1]]; + const float *n1 = bone_octahedral_solid_normals[bone_octahedral_wire_adjacent_face[i * 2]]; + const float *n2 = bone_octahedral_solid_normals[bone_octahedral_wire_adjacent_face[i * 2 + 1]]; + add_fancy_edge(vbo, attr_id.pos, attr_id.n1, attr_id.n2, &v_idx, co1, co2, n1, n2); + } + + SHC.drw_bone_octahedral_wire = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_bone_octahedral_wire; +} + + +/* XXX TODO move that 1 unit cube to more common/generic place? */ +static const float bone_box_verts[8][3] = { + { 1.0f, 0.0f, 1.0f}, + { 1.0f, 0.0f, -1.0f}, + {-1.0f, 0.0f, -1.0f}, + {-1.0f, 0.0f, 1.0f}, + { 1.0f, 1.0f, 1.0f}, + { 1.0f, 1.0f, -1.0f}, + {-1.0f, 1.0f, -1.0f}, + {-1.0f, 1.0f, 1.0f} +}; + +static const unsigned int bone_box_wire[24] = { + 0, 1, 1, 2, 2, 3, 3, 0, + 4, 5, 5, 6, 6, 7, 7, 4, + 0, 4, 1, 5, 2, 6, 3, 7, +}; + +/* aligned with bone_octahedral_wire + * Contains adjacent normal index */ +static const unsigned int bone_box_wire_adjacent_face[24] = { + 0, 2, 0, 4, 1, 6, 1, 8, + 3, 10, 5, 10, 7, 11, 9, 11, + 3, 8, 2, 5, 4, 7, 6, 9, +}; + +static const unsigned int bone_box_solid_tris[12][3] = { + {0, 1, 2}, /* bottom */ + {0, 2, 3}, + + {0, 1, 5}, /* sides */ + {0, 5, 4}, + + {1, 2, 6}, + {1, 6, 5}, + + {2, 3, 7}, + {2, 7, 6}, + + {3, 0, 4}, + {3, 4, 7}, + + {4, 5, 6}, /* top */ + {4, 6, 7}, +}; + +/* aligned with bone_octahedral_solid_tris */ +static const float bone_box_solid_normals[12][3] = { + { 0.0f, -1.0f, 0.0f}, + { 0.0f, -1.0f, 0.0f}, + + { 1.0f, 0.0f, 0.0f}, + { 1.0f, 0.0f, 0.0f}, + + { 0.0f, 0.0f, -1.0f}, + { 0.0f, 0.0f, -1.0f}, + + {-1.0f, 0.0f, 0.0f}, + {-1.0f, 0.0f, 0.0f}, + + { 0.0f, 0.0f, 1.0f}, + { 0.0f, 0.0f, 1.0f}, + + { 0.0f, 1.0f, 0.0f}, + { 0.0f, 1.0f, 0.0f}, +}; + +Gwn_Batch *DRW_cache_bone_box_get(void) +{ + if (!SHC.drw_bone_box) { + unsigned int v_idx = 0; + + static Gwn_VertFormat format = { 0 }; + static struct { uint pos, nor; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + attr_id.nor = GWN_vertformat_attr_add(&format, "nor", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 36); + + for (int i = 0; i < 12; i++) { + for (int j = 0; j < 3; j++) { + GWN_vertbuf_attr_set(vbo, attr_id.nor, v_idx, bone_box_solid_normals[i]); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, bone_box_verts[bone_box_solid_tris[i][j]]); + } + } + + SHC.drw_bone_box = GWN_batch_create_ex(GWN_PRIM_TRIS, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_bone_box; +} + +Gwn_Batch *DRW_cache_bone_box_wire_outline_get(void) +{ + if (!SHC.drw_bone_box_wire) { + unsigned int v_idx = 0; + + static Gwn_VertFormat format = { 0 }; + static struct { uint pos, n1, n2; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + attr_id.n1 = GWN_vertformat_attr_add(&format, "N1", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + attr_id.n2 = GWN_vertformat_attr_add(&format, "N2", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 12 * 2); + + for (int i = 0; i < 12; i++) { + const float *co1 = bone_box_verts[bone_box_wire[i * 2]]; + const float *co2 = bone_box_verts[bone_box_wire[i * 2 + 1]]; + const float *n1 = bone_box_solid_normals[bone_box_wire_adjacent_face[i * 2]]; + const float *n2 = bone_box_solid_normals[bone_box_wire_adjacent_face[i * 2 + 1]]; + add_fancy_edge(vbo, attr_id.pos, attr_id.n1, attr_id.n2, &v_idx, co1, co2, n1, n2); + } + + SHC.drw_bone_box_wire = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_bone_box_wire; +} + + +Gwn_Batch *DRW_cache_bone_wire_wire_outline_get(void) +{ + if (!SHC.drw_bone_wire_wire) { + unsigned int v_idx = 0; + + static Gwn_VertFormat format = { 0 }; + static struct { uint pos, n1, n2; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + attr_id.n1 = GWN_vertformat_attr_add(&format, "N1", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + attr_id.n2 = GWN_vertformat_attr_add(&format, "N2", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 2); + + const float co1[3] = {0.0f, 0.0f, 0.0f}; + const float co2[3] = {0.0f, 1.0f, 0.0f}; + const float n[3] = {1.0f, 0.0f, 0.0f}; + add_fancy_edge(vbo, attr_id.pos, attr_id.n1, attr_id.n2, &v_idx, co1, co2, n, n); + + SHC.drw_bone_wire_wire = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_bone_wire_wire; +} + + +/* Helpers for envelope bone's solid sphere-with-hidden-equatorial-cylinder. + * Note that here we only encode head/tail in forth component of the vector. */ +static void benv_lat_lon_to_co(const float lat, const float lon, float r_nor[3]) +{ + /* Poles are along Y axis. */ + r_nor[0] = sinf(lat) * cosf(lon); + r_nor[1] = cosf(lat); + r_nor[2] = sinf(lat) * sinf(lon); +} + +static void benv_add_tri(Gwn_VertBuf *vbo, uint pos_id, uint *v_idx, float *co1, float *co2, float *co3) +{ + /* Given tri and its seven other mirrors along X/Y/Z axes. */ + for (int x = -1; x <= 1; x += 2) { + for (int y = -1; y <= 1; y += 2) { + const float head_tail = (y == -1) ? 0.0f : 1.0f; + for (int z = -1; z <= 1; z += 2) { + GWN_vertbuf_attr_set(vbo, pos_id, (*v_idx)++, + (const float[4]){co1[0] * x, co1[1] * y, co1[2] * z, head_tail}); + GWN_vertbuf_attr_set(vbo, pos_id, (*v_idx)++, + (const float[4]){co2[0] * x, co2[1] * y, co2[2] * z, head_tail}); + GWN_vertbuf_attr_set(vbo, pos_id, (*v_idx)++, + (const float[4]){co3[0] * x, co3[1] * y, co3[2] * z, head_tail}); + } + } + } +} + +Gwn_Batch *DRW_cache_bone_envelope_solid_get(void) +{ +#define CIRCLE_RESOL 32 /* Must be multiple of 4 */ + if (!SHC.drw_bone_envelope) { + const int lon_res = CIRCLE_RESOL / 4; + const int lat_res = CIRCLE_RESOL / 4; + const float lon_inc = M_PI_2 / lon_res; + const float lat_inc = M_PI_2 / lat_res; + unsigned int v_idx = 0; + + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 4, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, lat_res * lon_res * 8 * 6); + + float lon = 0.0f; + for (int i = 0; i < lon_res; i++, lon += lon_inc) { + float lat = 0.0f; + float co1[3], co2[3], co3[3], co4[3]; + + for (int j = 0; j < lat_res; j++, lat += lat_inc) { + benv_lat_lon_to_co(lat, lon, co1); + benv_lat_lon_to_co(lat, lon + lon_inc, co2); + benv_lat_lon_to_co(lat + lat_inc, lon + lon_inc, co3); + benv_lat_lon_to_co(lat + lat_inc, lon, co4); + + if (j != 0) { /* At pole, n1 and n2 are identical. */ + benv_add_tri(vbo, attr_id.pos, &v_idx, co1, co2, co3); + } + benv_add_tri(vbo, attr_id.pos, &v_idx, co1, co3, co4); + } + + /* lat is at equator (i.e. lat == pi / 2). */ + /* We need to add 'cylinder' part between the equators (along XZ plane). */ + for (int x = -1; x <= 1; x += 2) { + for (int z = -1; z <= 1; z += 2) { + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, + (const float[4]){co3[0] * x, co3[1], co3[2] * z, 0.0f}); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, + (const float[4]){co4[0] * x, co4[1], co4[2] * z, 0.0f}); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, + (const float[4]){co4[0] * x, co4[1], co4[2] * z, 1.0f}); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, + (const float[4]){co3[0] * x, co3[1], co3[2] * z, 0.0f}); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, + (const float[4]){co4[0] * x, co4[1], co4[2] * z, 1.0f}); + GWN_vertbuf_attr_set(vbo, attr_id.pos, v_idx++, + (const float[4]){co3[0] * x, co3[1], co3[2] * z, 1.0f}); + } + } + } + + SHC.drw_bone_envelope = GWN_batch_create_ex(GWN_PRIM_TRIS, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_bone_envelope; +} + + +Gwn_Batch *DRW_cache_bone_envelope_distance_outline_get(void) +{ +#define CIRCLE_RESOL 32 /* Must be multiple of 2 */ + if (!SHC.drw_bone_envelope_distance) { + unsigned int v_idx = 0; + + static Gwn_VertFormat format = { 0 }; + static unsigned int pos_id; + if (format.attrib_ct == 0) { + pos_id = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 4, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, CIRCLE_RESOL * 2 + 6); + + /* Encoded triangle strip, vertex shader gives them final correct value. */ + for (int i = 0; i < CIRCLE_RESOL + 1; i++) { + const bool is_headtail_transition = ELEM(i, CIRCLE_RESOL / 2, CIRCLE_RESOL); + const float head_tail = (i > CIRCLE_RESOL / 2) ? 1.0f : 0.0f; + const float alpha = 2.0f * M_PI * i / CIRCLE_RESOL; + const float x = cosf(alpha); + const float y = -sinf(alpha); + + /* { X, Y, head/tail, inner/outer border } */ + GWN_vertbuf_attr_set(vbo, pos_id, v_idx++, (const float[4]){x, y, head_tail, 0.0f}); + GWN_vertbuf_attr_set(vbo, pos_id, v_idx++, (const float[4]){x, y, head_tail, 1.0f}); + if (is_headtail_transition) { + GWN_vertbuf_attr_set(vbo, pos_id, v_idx++, (const float[4]){x, y, 1.0f - head_tail, 0.0f}); + GWN_vertbuf_attr_set(vbo, pos_id, v_idx++, (const float[4]){x, y, 1.0f - head_tail, 1.0f}); + } + } + + SHC.drw_bone_envelope_distance = GWN_batch_create_ex(GWN_PRIM_TRI_STRIP, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_bone_envelope_distance; +#undef CIRCLE_RESOL +} + + +/* Bone body. */ +Gwn_Batch *DRW_cache_bone_envelope_wire_outline_get(void) +{ + if (!SHC.drw_bone_envelope_wire) { + unsigned int v_idx = 0; + + static Gwn_VertFormat format = { 0 }; + static unsigned int pos_id; + if (format.attrib_ct == 0) { + pos_id = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 4, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 4); + + /* Two lines between head and tail circles. */ + /* Encoded lines, vertex shader gives them final correct value. */ + /* { X, Y, head/tail, inner/outer border } */ + GWN_vertbuf_attr_set(vbo, pos_id, v_idx++, (const float[4]){ 1.0f, 0.0f, 0.0f, 0.0f}); + GWN_vertbuf_attr_set(vbo, pos_id, v_idx++, (const float[4]){ 1.0f, 0.0f, 1.0f, 0.0f}); + GWN_vertbuf_attr_set(vbo, pos_id, v_idx++, (const float[4]){-1.0f, 0.0f, 0.0f, 0.0f}); + GWN_vertbuf_attr_set(vbo, pos_id, v_idx++, (const float[4]){-1.0f, 0.0f, 1.0f, 0.0f}); + + SHC.drw_bone_envelope_wire = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_bone_envelope_wire; +} + + +/* Bone head and tail. */ +Gwn_Batch *DRW_cache_bone_envelope_head_wire_outline_get(void) +{ +#define CIRCLE_RESOL 32 /* Must be multiple of 2 */ + if (!SHC.drw_bone_envelope_head_wire) { + unsigned int v_idx = 0; + + static Gwn_VertFormat format = { 0 }; + static unsigned int pos_id; + if (format.attrib_ct == 0) { + pos_id = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 4, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, CIRCLE_RESOL); + + /* Encoded lines, vertex shader gives them final correct value. */ + /* Only head circle (tail is drawn in disp_tail_mat space as a head one by draw_armature.c's draw_point()). */ + for (int i = 0; i < CIRCLE_RESOL; i++) { + const float alpha = 2.0f * M_PI * i / CIRCLE_RESOL; + const float x = cosf(alpha); + const float y = -sinf(alpha); + + /* { X, Y, head/tail, inner/outer border } */ + GWN_vertbuf_attr_set(vbo, pos_id, v_idx++, (const float[4]){ x, y, 0.0f, 0.0f}); + } + + SHC.drw_bone_envelope_head_wire = GWN_batch_create_ex(GWN_PRIM_LINE_LOOP, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_bone_envelope_head_wire; +#undef CIRCLE_RESOL +} + + +Gwn_Batch *DRW_cache_bone_point_get(void) +{ + if (!SHC.drw_bone_point) { + const int lon_res = 16; + const int lat_res = 8; + const float rad = 0.05f; + const float lon_inc = 2 * M_PI / lon_res; + const float lat_inc = M_PI / lat_res; + unsigned int v_idx = 0; + + static Gwn_VertFormat format = { 0 }; + static struct { uint pos, nor; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + attr_id.nor = GWN_vertformat_attr_add(&format, "nor", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, (lat_res - 1) * lon_res * 6); + + float lon = 0.0f; + for (int i = 0; i < lon_res; i++, lon += lon_inc) { + float lat = 0.0f; + for (int j = 0; j < lat_res; j++, lat += lat_inc) { + if (j != lat_res - 1) { /* Pole */ + add_lat_lon_vert(vbo, attr_id.pos, attr_id.nor, &v_idx, rad, lat + lat_inc, lon + lon_inc); + add_lat_lon_vert(vbo, attr_id.pos, attr_id.nor, &v_idx, rad, lat + lat_inc, lon); + add_lat_lon_vert(vbo, attr_id.pos, attr_id.nor, &v_idx, rad, lat, lon); + } + + if (j != 0) { /* Pole */ + add_lat_lon_vert(vbo, attr_id.pos, attr_id.nor, &v_idx, rad, lat, lon + lon_inc); + add_lat_lon_vert(vbo, attr_id.pos, attr_id.nor, &v_idx, rad, lat + lat_inc, lon + lon_inc); + add_lat_lon_vert(vbo, attr_id.pos, attr_id.nor, &v_idx, rad, lat, lon); + } + } + } + + SHC.drw_bone_point = GWN_batch_create_ex(GWN_PRIM_TRIS, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_bone_point; +} + +Gwn_Batch *DRW_cache_bone_point_wire_outline_get(void) +{ + if (!SHC.drw_bone_point_wire) { + Gwn_VertBuf *vbo = sphere_wire_vbo(0.05f); + SHC.drw_bone_point_wire = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_bone_point_wire; +} + +Gwn_Batch *DRW_cache_bone_arrows_get(void) +{ + if (!SHC.drw_bone_arrows) { + Gwn_VertBuf *vbo = fill_arrows_vbo(0.25f); + SHC.drw_bone_arrows = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_bone_arrows; +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Camera + * \{ */ + +/** + * We could make these more generic functions. + * although filling 1d lines is not common. + * + * \note Use x coordinate to identify the vertex the vertex shader take care to place it appropriately. + */ + +static const float camera_coords_frame_bounds[5] = { + 0.0f, /* center point */ + 1.0f, /* + X + Y */ + 2.0f, /* + X - Y */ + 3.0f, /* - X - Y */ + 4.0f, /* - X + Y */ +}; + +static const float camera_coords_frame_tri[3] = { + 5.0f, /* tria + X */ + 6.0f, /* tria - X */ + 7.0f, /* tria + Y */ +}; + +/** Draw a loop of lines. */ +static void camera_fill_lines_loop_fl_v1( + Gwn_VertBufRaw *pos_step, + const float *coords, const uint coords_len) +{ + for (uint i = 0, i_prev = coords_len - 1; i < coords_len; i_prev = i++) { + *((float *)GWN_vertbuf_raw_step(pos_step)) = coords[i_prev]; + *((float *)GWN_vertbuf_raw_step(pos_step)) = coords[i]; + } +} + +/** Fan lines out from the first vertex. */ +static void camera_fill_lines_fan_fl_v1( + Gwn_VertBufRaw *pos_step, + const float *coords, const uint coords_len) +{ + for (uint i = 1; i < coords_len; i++) { + *((float *)GWN_vertbuf_raw_step(pos_step)) = coords[0]; + *((float *)GWN_vertbuf_raw_step(pos_step)) = coords[i]; + } +} + +/** Simply fill the array. */ +static void camera_fill_array_fl_v1( + Gwn_VertBufRaw *pos_step, + const float *coords, const uint coords_len) +{ + for (uint i = 0; i < coords_len; i++) { + *((float *)GWN_vertbuf_raw_step(pos_step)) = coords[i]; + } +} + + +Gwn_Batch *DRW_cache_camera_get(void) +{ + if (!SHC.drw_camera) { + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 1, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + const int vbo_len_capacity = 22; + GWN_vertbuf_data_alloc(vbo, vbo_len_capacity); + Gwn_VertBufRaw pos_step; + GWN_vertbuf_attr_get_raw_data(vbo, attr_id.pos, &pos_step); + + /* camera cone (from center to frame) */ + camera_fill_lines_fan_fl_v1(&pos_step, camera_coords_frame_bounds, ARRAY_SIZE(camera_coords_frame_bounds)); + + /* camera frame (skip center) */ + camera_fill_lines_loop_fl_v1(&pos_step, &camera_coords_frame_bounds[1], ARRAY_SIZE(camera_coords_frame_bounds) - 1); + + /* camera triangle (above the frame) */ + camera_fill_lines_loop_fl_v1(&pos_step, camera_coords_frame_tri, ARRAY_SIZE(camera_coords_frame_tri)); + + BLI_assert(vbo_len_capacity == GWN_vertbuf_raw_used(&pos_step)); + + SHC.drw_camera = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_camera; +} + +Gwn_Batch *DRW_cache_camera_frame_get(void) +{ + if (!SHC.drw_camera_frame) { + + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 1, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + const int vbo_len_capacity = 8; + GWN_vertbuf_data_alloc(vbo, vbo_len_capacity); + Gwn_VertBufRaw pos_step; + GWN_vertbuf_attr_get_raw_data(vbo, attr_id.pos, &pos_step); + + /* camera frame (skip center) */ + camera_fill_lines_loop_fl_v1(&pos_step, &camera_coords_frame_bounds[1], ARRAY_SIZE(camera_coords_frame_bounds) - 1); + + BLI_assert(vbo_len_capacity == GWN_vertbuf_raw_used(&pos_step)); + + SHC.drw_camera_frame = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_camera_frame; +} + +Gwn_Batch *DRW_cache_camera_tria_get(void) +{ + if (!SHC.drw_camera_tria) { + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 1, GWN_FETCH_FLOAT); + } + + /* Vertices */ + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + const int vbo_len_capacity = 3; + GWN_vertbuf_data_alloc(vbo, vbo_len_capacity); + Gwn_VertBufRaw pos_step; + GWN_vertbuf_attr_get_raw_data(vbo, attr_id.pos, &pos_step); + + /* camera triangle (above the frame) */ + camera_fill_array_fl_v1(&pos_step, camera_coords_frame_tri, ARRAY_SIZE(camera_coords_frame_tri)); + + BLI_assert(vbo_len_capacity == GWN_vertbuf_raw_used(&pos_step)); + + SHC.drw_camera_tria = GWN_batch_create_ex(GWN_PRIM_TRIS, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_camera_tria; +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Object Mode Helpers + * \{ */ + +/* Object Center */ +Gwn_Batch *DRW_cache_single_vert_get(void) +{ + if (!SHC.drw_single_vertice) { + float v1[3] = {0.0f, 0.0f, 0.0f}; + + /* Position Only 3D format */ + static Gwn_VertFormat format = { 0 }; + static struct { uint pos; } attr_id; + if (format.attrib_ct == 0) { + attr_id.pos = GWN_vertformat_attr_add(&format, "pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 1); + + GWN_vertbuf_attr_set(vbo, attr_id.pos, 0, v1); + + SHC.drw_single_vertice = GWN_batch_create_ex(GWN_PRIM_POINTS, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + return SHC.drw_single_vertice; +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Meshes + * \{ */ + +Gwn_Batch *DRW_cache_mesh_surface_overlay_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_all_triangles(me); +} + +void DRW_cache_mesh_wire_overlay_get( + Object *ob, + Gwn_Batch **r_tris, Gwn_Batch **r_ledges, Gwn_Batch **r_lverts) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + + *r_tris = DRW_mesh_batch_cache_get_overlay_triangles(me); + *r_ledges = DRW_mesh_batch_cache_get_overlay_loose_edges(me); + *r_lverts = DRW_mesh_batch_cache_get_overlay_loose_verts(me); +} + +void DRW_cache_mesh_normals_overlay_get( + Object *ob, + Gwn_Batch **r_tris, Gwn_Batch **r_ledges, Gwn_Batch **r_lverts) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + + *r_tris = DRW_mesh_batch_cache_get_overlay_triangles_nor(me); + *r_ledges = DRW_mesh_batch_cache_get_overlay_loose_edges_nor(me); + *r_lverts = DRW_mesh_batch_cache_get_overlay_loose_verts(me); +} + +Gwn_Batch *DRW_cache_face_centers_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + + return DRW_mesh_batch_cache_get_overlay_facedots(me); +} + +Gwn_Batch *DRW_cache_mesh_wire_outline_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_fancy_edges(me); +} + +Gwn_Batch *DRW_cache_mesh_surface_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_triangles_with_normals(me); +} + +Gwn_Batch *DRW_cache_mesh_surface_weights_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_triangles_with_normals_and_weights(me, ob->actdef - 1); +} + +Gwn_Batch *DRW_cache_mesh_surface_vert_colors_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_triangles_with_normals_and_vert_colors(me); +} + +/* Return list of batches */ +Gwn_Batch **DRW_cache_mesh_surface_shaded_get( + Object *ob, struct GPUMaterial **gpumat_array, uint gpumat_array_len) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_surface_shaded(me, gpumat_array, gpumat_array_len); +} + +/* Return list of batches */ +Gwn_Batch **DRW_cache_mesh_surface_texpaint_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_surface_texpaint(me); +} + +Gwn_Batch *DRW_cache_mesh_surface_texpaint_single_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_surface_texpaint_single(me); +} + +Gwn_Batch *DRW_cache_mesh_surface_verts_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_points_with_normals(me); +} + +Gwn_Batch *DRW_cache_mesh_edges_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_all_edges(me); +} + +Gwn_Batch *DRW_cache_mesh_verts_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_all_verts(me); +} + +Gwn_Batch *DRW_cache_mesh_edges_paint_overlay_get(Object *ob, bool use_wire, bool use_sel) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_weight_overlay_edges(me, use_wire, use_sel); +} + +Gwn_Batch *DRW_cache_mesh_faces_weight_overlay_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_weight_overlay_faces(me); +} + +Gwn_Batch *DRW_cache_mesh_verts_weight_overlay_get(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + return DRW_mesh_batch_cache_get_weight_overlay_verts(me); +} + +void DRW_cache_mesh_sculpt_coords_ensure(Object *ob) +{ + BLI_assert(ob->type == OB_MESH); + + Mesh *me = ob->data; + DRW_mesh_cache_sculpt_coords_ensure(me); +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Curve + * \{ */ + +Gwn_Batch *DRW_cache_curve_edge_wire_get(Object *ob) +{ + BLI_assert(ob->type == OB_CURVE); + + struct Curve *cu = ob->data; + return DRW_curve_batch_cache_get_wire_edge(cu, ob->curve_cache); +} + +Gwn_Batch *DRW_cache_curve_edge_normal_get(Object *ob, float normal_size) +{ + BLI_assert(ob->type == OB_CURVE); + + struct Curve *cu = ob->data; + return DRW_curve_batch_cache_get_normal_edge(cu, ob->curve_cache, normal_size); +} + +Gwn_Batch *DRW_cache_curve_edge_overlay_get(Object *ob) +{ + BLI_assert(ob->type == OB_CURVE); + + struct Curve *cu = ob->data; + return DRW_curve_batch_cache_get_overlay_edges(cu); +} + +Gwn_Batch *DRW_cache_curve_vert_overlay_get(Object *ob) +{ + BLI_assert(ob->type == OB_CURVE); + + struct Curve *cu = ob->data; + return DRW_curve_batch_cache_get_overlay_verts(cu); +} + +Gwn_Batch *DRW_cache_curve_surface_get(Object *ob) +{ + BLI_assert(ob->type == OB_CURVE); + + struct Curve *cu = ob->data; + return DRW_curve_batch_cache_get_triangles_with_normals(cu, ob->curve_cache); +} + +/* Return list of batches */ +Gwn_Batch **DRW_cache_curve_surface_shaded_get( + Object *ob, struct GPUMaterial **gpumat_array, uint gpumat_array_len) +{ + BLI_assert(ob->type == OB_CURVE); + + struct Curve *cu = ob->data; + return DRW_curve_batch_cache_get_surface_shaded(cu, ob->curve_cache, gpumat_array, gpumat_array_len); +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name MetaBall + * \{ */ + +Gwn_Batch *DRW_cache_mball_surface_get(Object *ob) +{ + BLI_assert(ob->type == OB_MBALL); + return DRW_metaball_batch_cache_get_triangles_with_normals(ob); +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Font + * \{ */ + +Gwn_Batch *DRW_cache_text_edge_wire_get(Object *ob) +{ + BLI_assert(ob->type == OB_FONT); + + struct Curve *cu = ob->data; + return DRW_curve_batch_cache_get_wire_edge(cu, ob->curve_cache); +} + +Gwn_Batch *DRW_cache_text_surface_get(Object *ob) +{ + BLI_assert(ob->type == OB_FONT); + struct Curve *cu = ob->data; + if (cu->editfont && (cu->flag & CU_FAST)) { + return NULL; + } + return DRW_curve_batch_cache_get_triangles_with_normals(cu, ob->curve_cache); +} + +Gwn_Batch **DRW_cache_text_surface_shaded_get( + Object *ob, struct GPUMaterial **gpumat_array, uint gpumat_array_len) +{ + BLI_assert(ob->type == OB_FONT); + struct Curve *cu = ob->data; + if (cu->editfont && (cu->flag & CU_FAST)) { + return NULL; + } + return DRW_curve_batch_cache_get_surface_shaded(cu, ob->curve_cache, gpumat_array, gpumat_array_len); +} + +Gwn_Batch *DRW_cache_text_cursor_overlay_get(Object *ob) +{ + BLI_assert(ob->type == OB_FONT); + struct Curve *cu = ob->data; + return DRW_curve_batch_cache_get_overlay_cursor(cu); +} + +Gwn_Batch *DRW_cache_text_select_overlay_get(Object *ob) +{ + BLI_assert(ob->type == OB_FONT); + struct Curve *cu = ob->data; + return DRW_curve_batch_cache_get_overlay_select(cu); +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Surface + * \{ */ + +Gwn_Batch *DRW_cache_surf_surface_get(Object *ob) +{ + BLI_assert(ob->type == OB_SURF); + + struct Curve *cu = ob->data; + return DRW_curve_batch_cache_get_triangles_with_normals(cu, ob->curve_cache); +} + +/* Return list of batches */ +Gwn_Batch **DRW_cache_surf_surface_shaded_get( + Object *ob, struct GPUMaterial **gpumat_array, uint gpumat_array_len) +{ + BLI_assert(ob->type == OB_SURF); + + struct Curve *cu = ob->data; + return DRW_curve_batch_cache_get_surface_shaded(cu, ob->curve_cache, gpumat_array, gpumat_array_len); +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Lattice + * \{ */ + +Gwn_Batch *DRW_cache_lattice_verts_get(Object *ob) +{ + BLI_assert(ob->type == OB_LATTICE); + + struct Lattice *lt = ob->data; + return DRW_lattice_batch_cache_get_all_verts(lt); +} + +Gwn_Batch *DRW_cache_lattice_wire_get(Object *ob, bool use_weight) +{ + BLI_assert(ob->type == OB_LATTICE); + + Lattice *lt = ob->data; + int actdef = -1; + + if (use_weight && ob->defbase.first && lt->editlatt->latt->dvert) { + actdef = ob->actdef - 1; + } + + return DRW_lattice_batch_cache_get_all_edges(lt, use_weight, actdef); +} + +Gwn_Batch *DRW_cache_lattice_vert_overlay_get(Object *ob) +{ + BLI_assert(ob->type == OB_LATTICE); + + struct Lattice *lt = ob->data; + return DRW_lattice_batch_cache_get_overlay_verts(lt); +} + +/** \} */ + +/* -------------------------------------------------------------------- */ + +/** \name Particles + * \{ */ + +Gwn_Batch *DRW_cache_particles_get_hair(ParticleSystem *psys, ModifierData *md) +{ + return DRW_particles_batch_cache_get_hair(psys, md); +} + +Gwn_Batch *DRW_cache_particles_get_dots(ParticleSystem *psys) +{ + return DRW_particles_batch_cache_get_dots(psys); +} + +Gwn_Batch *DRW_cache_particles_get_prim(int type) +{ + switch (type) { + case PART_DRAW_CROSS: + if (!SHC.drw_particle_cross) { + static Gwn_VertFormat format = { 0 }; + static unsigned pos_id, axis_id; + + if (format.attrib_ct == 0) { + pos_id = GWN_vertformat_attr_add(&format, "inst_pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + axis_id = GWN_vertformat_attr_add(&format, "axis", GWN_COMP_I32, 1, GWN_FETCH_INT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 6); + + /* X axis */ + float co[3] = {-1.0f, 0.0f, 0.0f}; + int axis = -1; + GWN_vertbuf_attr_set(vbo, pos_id, 0, co); + GWN_vertbuf_attr_set(vbo, axis_id, 0, &axis); + + co[0] = 1.0f; + GWN_vertbuf_attr_set(vbo, pos_id, 1, co); + GWN_vertbuf_attr_set(vbo, axis_id, 1, &axis); + + /* Y axis */ + co[0] = 0.0f; + co[1] = -1.0f; + GWN_vertbuf_attr_set(vbo, pos_id, 2, co); + GWN_vertbuf_attr_set(vbo, axis_id, 2, &axis); + + co[1] = 1.0f; + GWN_vertbuf_attr_set(vbo, pos_id, 3, co); + GWN_vertbuf_attr_set(vbo, axis_id, 3, &axis); + + /* Z axis */ + co[1] = 0.0f; + co[2] = -1.0f; + GWN_vertbuf_attr_set(vbo, pos_id, 4, co); + GWN_vertbuf_attr_set(vbo, axis_id, 4, &axis); + + co[2] = 1.0f; + GWN_vertbuf_attr_set(vbo, pos_id, 5, co); + GWN_vertbuf_attr_set(vbo, axis_id, 5, &axis); + + SHC.drw_particle_cross = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + + return SHC.drw_particle_cross; + case PART_DRAW_AXIS: + if (!SHC.drw_particle_axis) { + static Gwn_VertFormat format = { 0 }; + static unsigned pos_id, axis_id; + + if (format.attrib_ct == 0) { + pos_id = GWN_vertformat_attr_add(&format, "inst_pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + axis_id = GWN_vertformat_attr_add(&format, "axis", GWN_COMP_I32, 1, GWN_FETCH_INT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, 6); + + /* X axis */ + float co[3] = {0.0f, 0.0f, 0.0f}; + int axis = 0; + GWN_vertbuf_attr_set(vbo, pos_id, 0, co); + GWN_vertbuf_attr_set(vbo, axis_id, 0, &axis); + + co[0] = 1.0f; + GWN_vertbuf_attr_set(vbo, pos_id, 1, co); + GWN_vertbuf_attr_set(vbo, axis_id, 1, &axis); + + /* Y axis */ + co[0] = 0.0f; + axis = 1; + GWN_vertbuf_attr_set(vbo, pos_id, 2, co); + GWN_vertbuf_attr_set(vbo, axis_id, 2, &axis); + + co[1] = 1.0f; + GWN_vertbuf_attr_set(vbo, pos_id, 3, co); + GWN_vertbuf_attr_set(vbo, axis_id, 3, &axis); + + /* Z axis */ + co[1] = 0.0f; + axis = 2; + GWN_vertbuf_attr_set(vbo, pos_id, 4, co); + GWN_vertbuf_attr_set(vbo, axis_id, 4, &axis); + + co[2] = 1.0f; + GWN_vertbuf_attr_set(vbo, pos_id, 5, co); + GWN_vertbuf_attr_set(vbo, axis_id, 5, &axis); + + SHC.drw_particle_axis = GWN_batch_create_ex(GWN_PRIM_LINES, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + + return SHC.drw_particle_axis; + case PART_DRAW_CIRC: +#define CIRCLE_RESOL 32 + if (!SHC.drw_particle_circle) { + float v[3] = {0.0f, 0.0f, 0.0f}; + int axis = -1; + + static Gwn_VertFormat format = { 0 }; + static unsigned pos_id, axis_id; + + if (format.attrib_ct == 0) { + pos_id = GWN_vertformat_attr_add(&format, "inst_pos", GWN_COMP_F32, 3, GWN_FETCH_FLOAT); + axis_id = GWN_vertformat_attr_add(&format, "axis", GWN_COMP_I32, 1, GWN_FETCH_INT); + } + + Gwn_VertBuf *vbo = GWN_vertbuf_create_with_format(&format); + GWN_vertbuf_data_alloc(vbo, CIRCLE_RESOL); + + for (int a = 0; a < CIRCLE_RESOL; a++) { + v[0] = sinf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[1] = cosf((2.0f * M_PI * a) / ((float)CIRCLE_RESOL)); + v[2] = 0.0f; + GWN_vertbuf_attr_set(vbo, pos_id, a, v); + GWN_vertbuf_attr_set(vbo, axis_id, a, &axis); + } + + SHC.drw_particle_circle = GWN_batch_create_ex(GWN_PRIM_LINE_LOOP, vbo, NULL, GWN_BATCH_OWNS_VBO); + } + + return SHC.drw_particle_circle; +#undef CIRCLE_RESOL + default: + BLI_assert(false); + break; + } + + return NULL; +} |