diff options
Diffstat (limited to 'source/blender/draw/engines/overlay/overlay_paint.cc')
| -rw-r--r-- | source/blender/draw/engines/overlay/overlay_paint.cc | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/source/blender/draw/engines/overlay/overlay_paint.cc b/source/blender/draw/engines/overlay/overlay_paint.cc new file mode 100644 index 00000000000..b8f087a1460 --- /dev/null +++ b/source/blender/draw/engines/overlay/overlay_paint.cc @@ -0,0 +1,275 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later + * Copyright 2019 Blender Foundation. */ + +/** \file + * \ingroup draw_engine + */ + +#include "DRW_render.h" + +#include "BKE_image.h" + +#include "DNA_mesh_types.h" + +#include "DEG_depsgraph_query.h" + +#include "overlay_private.hh" + +/* Check if the given object is rendered (partially) transparent */ +static bool paint_object_is_rendered_transparent(View3D *v3d, Object *ob) +{ + if (v3d->shading.type == OB_WIRE) { + return true; + } + if (v3d->shading.type == OB_SOLID) { + if (v3d->shading.flag & V3D_SHADING_XRAY) { + return true; + } + + if (ob && v3d->shading.color_type == V3D_SHADING_OBJECT_COLOR) { + return ob->color[3] < 1.0f; + } + if (ob && ob->type == OB_MESH && ob->data && + v3d->shading.color_type == V3D_SHADING_MATERIAL_COLOR) { + Mesh *me = static_cast<Mesh *>(ob->data); + for (int i = 0; i < me->totcol; i++) { + Material *mat = BKE_object_material_get_eval(ob, i + 1); + if (mat && mat->a < 1.0f) { + return true; + } + } + } + } + + /* Check object display types. */ + if (ob && ELEM(ob->dt, OB_WIRE, OB_BOUNDBOX)) { + return true; + } + + return false; +} + +void OVERLAY_paint_init(OVERLAY_Data *vedata) +{ + OVERLAY_StorageList *stl = vedata->stl; + OVERLAY_PrivateData *pd = stl->pd; + const DRWContextState *draw_ctx = DRW_context_state_get(); + + pd->painting.in_front = pd->use_in_front && draw_ctx->obact && + (draw_ctx->obact->dtx & OB_DRAW_IN_FRONT); + pd->painting.alpha_blending = paint_object_is_rendered_transparent(draw_ctx->v3d, + draw_ctx->obact); +} + +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 is_edit_mode = (pd->ctx_mode == CTX_MODE_EDIT_MESH); + const bool draw_contours = !is_edit_mode && + (pd->overlay.wpaint_flag & V3D_OVERLAY_WPAINT_CONTOURS) != 0; + float opacity = 0.0f; + pd->paint_depth_grp = nullptr; + psl->paint_depth_ps = nullptr; + + switch (pd->ctx_mode) { + case CTX_MODE_POSE: + case CTX_MODE_EDIT_MESH: + case CTX_MODE_PAINT_WEIGHT: { + opacity = is_edit_mode ? 1.0 : pd->overlay.weight_paint_mode_opacity; + 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); + + const bool do_shading = draw_ctx->v3d->shading.type != OB_WIRE; + + sh = OVERLAY_shader_paint_weight(do_shading); + 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_float_copy(grp, "opacity", opacity); + DRW_shgroup_uniform_texture(grp, "colorramp", G_draw.weight_ramp); + + /* Arbitrary light to give a hint of the geometry behind the weights. */ + if (do_shading) { + float light_dir[3]; + copy_v3_fl3(light_dir, 0.0f, 0.5f, 0.86602f); + normalize_v3(light_dir); + DRW_shgroup_uniform_vec3_copy(grp, "light_dir", light_dir); + } + + if (pd->painting.alpha_blending) { + state = DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL; + DRW_PASS_CREATE(psl->paint_depth_ps, state | pd->clipping_state); + sh = OVERLAY_shader_depth_only(); + pd->paint_depth_grp = DRW_shgroup_create(sh, psl->paint_depth_ps); + } + } + 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 |= pd->painting.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", pd->painting.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 != nullptr; + + 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 = BKE_image_get_gpu_texture(imapaint->stencil, nullptr, nullptr); + + 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 = nullptr; + pd->paint_surf_grp = nullptr; + } + + { + 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); + const float4 color = {1.0f, 1.0f, 1.0f, 0.2f}; + DRW_shgroup_uniform_vec4_copy(grp, "ucolor", color); + 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 = nullptr; + + const Mesh *me_orig = static_cast<Mesh *>(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 = nullptr; + + const Mesh *me_orig = static_cast<Mesh *>(DEG_get_original_object(ob)->data); + const bool is_edit_mode = (pd->ctx_mode == CTX_MODE_EDIT_MESH); + const bool use_wire = !is_edit_mode && (pd->overlay.paint_flag & V3D_OVERLAY_PAINT_WIRE); + const bool use_face_sel = !is_edit_mode && (me_orig->editflag & ME_EDIT_PAINT_FACE_SEL); + const bool use_vert_sel = !is_edit_mode && (me_orig->editflag & ME_EDIT_PAINT_VERT_SEL); + + if (ELEM(ob->mode, OB_MODE_WEIGHT_PAINT, OB_MODE_EDIT)) { + if (pd->paint_surf_grp) { + geom = DRW_cache_mesh_surface_weights_get(ob); + DRW_shgroup_call(pd->paint_surf_grp, geom, ob); + } + if (pd->paint_depth_grp) { + geom = DRW_cache_mesh_surface_weights_get(ob); + DRW_shgroup_call(pd->paint_depth_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_StorageList *stl = vedata->stl; + OVERLAY_PrivateData *pd = stl->pd; + + OVERLAY_PassList *psl = vedata->psl; + OVERLAY_FramebufferList *fbl = vedata->fbl; + + if (DRW_state_is_fbo()) { + GPU_framebuffer_bind(pd->painting.in_front ? fbl->overlay_in_front_fb : + fbl->overlay_default_fb); + } + + if (psl->paint_depth_ps) { + DRW_draw_pass(psl->paint_depth_ps); + } + if (psl->paint_color_ps) { + DRW_draw_pass(psl->paint_color_ps); + } + if (psl->paint_overlay_ps) { + DRW_draw_pass(psl->paint_overlay_ps); + } +} |