diff options
Diffstat (limited to 'source/blender/draw/engines/overlay/overlay_paint.c')
| -rw-r--r-- | source/blender/draw/engines/overlay/overlay_paint.c | 211 |
1 files changed, 211 insertions, 0 deletions
diff --git a/source/blender/draw/engines/overlay/overlay_paint.c b/source/blender/draw/engines/overlay/overlay_paint.c new file mode 100644 index 00000000000..4e73770472d --- /dev/null +++ b/source/blender/draw/engines/overlay/overlay_paint.c @@ -0,0 +1,211 @@ +/* + * 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. + * + * Copyright 2019, Blender Foundation. + */ + +/** \file + * \ingroup draw_engine + */ + +#include "DRW_render.h" + +#include "DNA_mesh_types.h" + +#include "DEG_depsgraph_query.h" + +#include "overlay_private.h" + +void OVERLAY_paint_cache_init(OVERLAY_Data *vedata) +{ + const DRWContextState *draw_ctx = DRW_context_state_get(); + OVERLAY_PassList *psl = vedata->psl; + OVERLAY_PrivateData *pd = vedata->stl->pd; + struct GPUShader *sh; + DRWShadingGroup *grp; + DRWState state; + + const bool use_alpha_blending = (draw_ctx->v3d->shading.type == OB_WIRE); + const bool draw_contours = (pd->overlay.wpaint_flag & V3D_OVERLAY_WPAINT_CONTOURS) != 0; + float opacity = 0.0f; + + switch (pd->ctx_mode) { + case CTX_MODE_POSE: + case CTX_MODE_PAINT_WEIGHT: { + opacity = pd->overlay.weight_paint_mode_opacity; + if (opacity > 0.0f) { + state = DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_EQUAL; + state |= use_alpha_blending ? DRW_STATE_BLEND_ALPHA : DRW_STATE_BLEND_MUL; + DRW_PASS_CREATE(psl->paint_color_ps, state | pd->clipping_state); + + sh = OVERLAY_shader_paint_weight(); + pd->paint_surf_grp = grp = DRW_shgroup_create(sh, psl->paint_color_ps); + DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_bool_copy(grp, "drawContours", draw_contours); + DRW_shgroup_uniform_bool_copy(grp, "useAlphaBlend", use_alpha_blending); + DRW_shgroup_uniform_float_copy(grp, "opacity", opacity); + DRW_shgroup_uniform_texture(grp, "colorramp", G_draw.weight_ramp); + } + break; + } + case CTX_MODE_PAINT_VERTEX: { + opacity = pd->overlay.vertex_paint_mode_opacity; + if (opacity > 0.0f) { + state = DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_EQUAL; + state |= use_alpha_blending ? DRW_STATE_BLEND_ALPHA : DRW_STATE_BLEND_MUL; + DRW_PASS_CREATE(psl->paint_color_ps, state | pd->clipping_state); + + sh = OVERLAY_shader_paint_vertcol(); + pd->paint_surf_grp = grp = DRW_shgroup_create(sh, psl->paint_color_ps); + DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_bool_copy(grp, "useAlphaBlend", use_alpha_blending); + DRW_shgroup_uniform_float_copy(grp, "opacity", opacity); + } + break; + } + case CTX_MODE_PAINT_TEXTURE: { + const ImagePaintSettings *imapaint = &draw_ctx->scene->toolsettings->imapaint; + const bool mask_enabled = imapaint->flag & IMAGEPAINT_PROJECT_LAYER_STENCIL && + imapaint->stencil != NULL; + + opacity = mask_enabled ? pd->overlay.texture_paint_mode_opacity : 0.0f; + if (opacity > 0.0f) { + state = DRW_STATE_WRITE_COLOR | DRW_STATE_DEPTH_EQUAL | DRW_STATE_BLEND_ALPHA; + DRW_PASS_CREATE(psl->paint_color_ps, state | pd->clipping_state); + + GPUTexture *tex = GPU_texture_from_blender(imapaint->stencil, NULL, GL_TEXTURE_2D); + + const bool mask_premult = (imapaint->stencil->alpha_mode == IMA_ALPHA_PREMUL); + const bool mask_inverted = (imapaint->flag & IMAGEPAINT_PROJECT_LAYER_STENCIL_INV) != 0; + sh = OVERLAY_shader_paint_texture(); + pd->paint_surf_grp = grp = DRW_shgroup_create(sh, psl->paint_color_ps); + DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_float_copy(grp, "opacity", opacity); + DRW_shgroup_uniform_bool_copy(grp, "maskPremult", mask_premult); + DRW_shgroup_uniform_vec3_copy(grp, "maskColor", imapaint->stencil_col); + DRW_shgroup_uniform_bool_copy(grp, "maskInvertStencil", mask_inverted); + DRW_shgroup_uniform_texture(grp, "maskImage", tex); + } + break; + } + default: + BLI_assert(0); + break; + } + + if (opacity <= 0.0f) { + psl->paint_color_ps = NULL; + pd->paint_surf_grp = NULL; + } + + { + state = DRW_STATE_WRITE_COLOR | DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL; + DRW_PASS_CREATE(psl->paint_overlay_ps, state | pd->clipping_state); + sh = OVERLAY_shader_paint_face(); + pd->paint_face_grp = grp = DRW_shgroup_create(sh, psl->paint_overlay_ps); + DRW_shgroup_uniform_vec4_copy(grp, "color", (float[4]){1.0f, 1.0f, 1.0f, 0.2f}); + DRW_shgroup_state_enable(grp, DRW_STATE_BLEND_ALPHA); + + sh = OVERLAY_shader_paint_wire(); + pd->paint_wire_selected_grp = grp = DRW_shgroup_create(sh, psl->paint_overlay_ps); + DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_bool_copy(grp, "useSelect", true); + DRW_shgroup_state_enable(grp, DRW_STATE_BLEND_ALPHA); + + pd->paint_wire_grp = grp = DRW_shgroup_create(sh, psl->paint_overlay_ps); + DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo); + DRW_shgroup_uniform_bool_copy(grp, "useSelect", false); + DRW_shgroup_state_enable(grp, DRW_STATE_BLEND_ALPHA); + + sh = OVERLAY_shader_paint_point(); + pd->paint_point_grp = grp = DRW_shgroup_create(sh, psl->paint_overlay_ps); + DRW_shgroup_uniform_block(grp, "globalsBlock", G_draw.block_ubo); + } +} + +void OVERLAY_paint_texture_cache_populate(OVERLAY_Data *vedata, Object *ob) +{ + OVERLAY_PrivateData *pd = vedata->stl->pd; + struct GPUBatch *geom = NULL; + + const Mesh *me_orig = DEG_get_original_object(ob)->data; + const bool use_face_sel = (me_orig->editflag & ME_EDIT_PAINT_FACE_SEL) != 0; + + if (pd->paint_surf_grp) { + geom = DRW_cache_mesh_surface_texpaint_single_get(ob); + DRW_shgroup_call(pd->paint_surf_grp, geom, ob); + } + + if (use_face_sel) { + geom = DRW_cache_mesh_surface_get(ob); + DRW_shgroup_call(pd->paint_face_grp, geom, ob); + } +} + +void OVERLAY_paint_vertex_cache_populate(OVERLAY_Data *vedata, Object *ob) +{ + OVERLAY_PrivateData *pd = vedata->stl->pd; + struct GPUBatch *geom = NULL; + + const Mesh *me = ob->data; + const Mesh *me_orig = DEG_get_original_object(ob)->data; + const bool use_wire = (pd->overlay.paint_flag & V3D_OVERLAY_PAINT_WIRE) != 0; + const bool use_face_sel = (me_orig->editflag & ME_EDIT_PAINT_FACE_SEL) != 0; + const bool use_vert_sel = (me_orig->editflag & ME_EDIT_PAINT_VERT_SEL) != 0; + + if (pd->paint_surf_grp) { + if (ob->mode == OB_MODE_VERTEX_PAINT) { + if (me->mloopcol == NULL) { + return; + } + geom = DRW_cache_mesh_surface_vertpaint_get(ob); + } + else { + geom = DRW_cache_mesh_surface_weights_get(ob); + } + DRW_shgroup_call(pd->paint_surf_grp, geom, ob); + } + + if (use_face_sel || use_wire) { + geom = DRW_cache_mesh_surface_edges_get(ob); + DRW_shgroup_call(use_face_sel ? pd->paint_wire_selected_grp : pd->paint_wire_grp, geom, ob); + } + + if (use_face_sel) { + geom = DRW_cache_mesh_surface_get(ob); + DRW_shgroup_call(pd->paint_face_grp, geom, ob); + } + + if (use_vert_sel) { + geom = DRW_cache_mesh_all_verts_get(ob); + DRW_shgroup_call(pd->paint_point_grp, geom, ob); + } +} + +void OVERLAY_paint_weight_cache_populate(OVERLAY_Data *vedata, Object *ob) +{ + OVERLAY_paint_vertex_cache_populate(vedata, ob); +} + +void OVERLAY_paint_draw(OVERLAY_Data *vedata) +{ + OVERLAY_PassList *psl = vedata->psl; + + if (psl->paint_color_ps) { + DRW_view_set_active(NULL); + DRW_draw_pass(psl->paint_color_ps); + } + DRW_draw_pass(psl->paint_overlay_ps); +} |