diff options
Diffstat (limited to 'source/blender/draw/modes/paint_vertex_mode.c')
| -rw-r--r-- | source/blender/draw/modes/paint_vertex_mode.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/source/blender/draw/modes/paint_vertex_mode.c b/source/blender/draw/modes/paint_vertex_mode.c new file mode 100644 index 00000000000..9cf6ea52d33 --- /dev/null +++ b/source/blender/draw/modes/paint_vertex_mode.c @@ -0,0 +1,202 @@ +/* + * 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 blender/draw/modes/paint_vertex_mode.c + * \ingroup draw + */ + +#include "DRW_engine.h" +#include "DRW_render.h" + +/* If builtin shaders are needed */ +#include "GPU_shader.h" + +#include "draw_common.h" + +#include "draw_mode_engines.h" + +#include "DNA_mesh_types.h" +#include "DNA_view3d_types.h" + +extern struct GPUUniformBuffer *globals_ubo; /* draw_common.c */ +extern struct GlobalsUboStorage ts; /* draw_common.c */ + +extern char datatoc_paint_vertex_vert_glsl[]; +extern char datatoc_paint_vertex_frag_glsl[]; +extern char datatoc_paint_wire_vert_glsl[]; +extern char datatoc_paint_wire_frag_glsl[]; +extern char datatoc_common_globals_lib_glsl[]; + +/* *********** LISTS *********** */ + +typedef struct PAINT_VERTEX_PassList { + struct DRWPass *vcolor_faces; + struct DRWPass *wire_overlay; + struct DRWPass *face_overlay; +} PAINT_VERTEX_PassList; + +typedef struct PAINT_VERTEX_StorageList { + struct PAINT_VERTEX_PrivateData *g_data; +} PAINT_VERTEX_StorageList; + +typedef struct PAINT_VERTEX_Data { + void *engine_type; /* Required */ + DRWViewportEmptyList *fbl; + DRWViewportEmptyList *txl; + PAINT_VERTEX_PassList *psl; + PAINT_VERTEX_StorageList *stl; +} PAINT_VERTEX_Data; + +/* *********** STATIC *********** */ + +static struct { + struct GPUShader *vcolor_face_shader; + struct GPUShader *wire_overlay_shader; + struct GPUShader *face_overlay_shader; +} e_data = {NULL}; /* Engine data */ + +typedef struct PAINT_VERTEX_PrivateData { + DRWShadingGroup *fvcolor_shgrp; + DRWShadingGroup *lwire_shgrp; + DRWShadingGroup *face_shgrp; +} PAINT_VERTEX_PrivateData; /* Transient data */ + +/* *********** FUNCTIONS *********** */ + +static void PAINT_VERTEX_engine_init(void *UNUSED(vedata)) +{ + if (!e_data.vcolor_face_shader) { + e_data.vcolor_face_shader = DRW_shader_create( + datatoc_paint_vertex_vert_glsl, NULL, + datatoc_paint_vertex_frag_glsl, NULL); + + e_data.wire_overlay_shader = DRW_shader_create_with_lib( + datatoc_paint_wire_vert_glsl, NULL, + datatoc_paint_wire_frag_glsl, + datatoc_common_globals_lib_glsl, "#define VERTEX_MODE\n"); + + e_data.face_overlay_shader = GPU_shader_get_builtin_shader(GPU_SHADER_3D_UNIFORM_COLOR); + } +} + +static void PAINT_VERTEX_cache_init(void *vedata) +{ + PAINT_VERTEX_PassList *psl = ((PAINT_VERTEX_Data *)vedata)->psl; + PAINT_VERTEX_StorageList *stl = ((PAINT_VERTEX_Data *)vedata)->stl; + const DRWContextState *draw_ctx = DRW_context_state_get(); + const View3D *v3d = draw_ctx->v3d; + + if (!stl->g_data) { + /* Alloc transient pointers */ + stl->g_data = MEM_mallocN(sizeof(*stl->g_data), __func__); + } + + { + /* Create a pass */ + psl->vcolor_faces = DRW_pass_create( + "Vert Color Pass", + DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_EQUAL | DRW_STATE_BLEND); + + stl->g_data->fvcolor_shgrp = DRW_shgroup_create(e_data.vcolor_face_shader, psl->vcolor_faces); + DRW_shgroup_uniform_float(stl->g_data->fvcolor_shgrp, "alpha", &v3d->overlay.vertex_paint_mode_opacity, 1); + } + + { + psl->wire_overlay = DRW_pass_create( + "Wire Pass", + DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL); + + stl->g_data->lwire_shgrp = DRW_shgroup_create(e_data.wire_overlay_shader, psl->wire_overlay); + } + + { + psl->face_overlay = DRW_pass_create( + "Face Mask Pass", + DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL | DRW_STATE_BLEND); + + stl->g_data->face_shgrp = DRW_shgroup_create(e_data.face_overlay_shader, psl->face_overlay); + + static float col[4] = {1.0f, 1.0f, 1.0f, 0.2f}; + DRW_shgroup_uniform_vec4(stl->g_data->face_shgrp, "color", col, 1); + } +} + +static void PAINT_VERTEX_cache_populate(void *vedata, Object *ob) +{ + PAINT_VERTEX_StorageList *stl = ((PAINT_VERTEX_Data *)vedata)->stl; + const DRWContextState *draw_ctx = DRW_context_state_get(); + const View3D *v3d = draw_ctx->v3d; + + if ((ob->type == OB_MESH) && (ob == draw_ctx->obact)) { + const Mesh *me = ob->data; + const bool use_wire = (v3d->overlay.paint_flag & V3D_OVERLAY_PAINT_WIRE) != 0; + const bool use_surface = v3d->overlay.vertex_paint_mode_opacity != 0.0f; + const bool use_face_sel = (me->editflag & ME_EDIT_PAINT_FACE_SEL) != 0; + struct Gwn_Batch *geom; + + if (use_surface) { + geom = DRW_cache_mesh_surface_vert_colors_get(ob); + DRW_shgroup_call_add(stl->g_data->fvcolor_shgrp, geom, ob->obmat); + } + + if (use_face_sel || use_wire) { + geom = DRW_cache_mesh_edges_paint_overlay_get(ob, use_wire, use_face_sel); + DRW_shgroup_call_add(stl->g_data->lwire_shgrp, geom, ob->obmat); + } + + if (use_face_sel) { + geom = DRW_cache_mesh_faces_weight_overlay_get(ob); + DRW_shgroup_call_add(stl->g_data->face_shgrp, geom, ob->obmat); + } + } +} + +static void PAINT_VERTEX_draw_scene(void *vedata) +{ + PAINT_VERTEX_PassList *psl = ((PAINT_VERTEX_Data *)vedata)->psl; + + DRW_draw_pass(psl->vcolor_faces); + DRW_draw_pass(psl->face_overlay); + DRW_draw_pass(psl->wire_overlay); +} + +static void PAINT_VERTEX_engine_free(void) +{ + DRW_SHADER_FREE_SAFE(e_data.vcolor_face_shader); + DRW_SHADER_FREE_SAFE(e_data.wire_overlay_shader); +} + +static const DrawEngineDataSize PAINT_VERTEX_data_size = DRW_VIEWPORT_DATA_SIZE(PAINT_VERTEX_Data); + +DrawEngineType draw_engine_paint_vertex_type = { + NULL, NULL, + N_("PaintVertexMode"), + &PAINT_VERTEX_data_size, + &PAINT_VERTEX_engine_init, + &PAINT_VERTEX_engine_free, + &PAINT_VERTEX_cache_init, + &PAINT_VERTEX_cache_populate, + NULL, + NULL, + &PAINT_VERTEX_draw_scene, + NULL, + NULL, +}; |