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Differential D5919 Diff 21379 source/blender/draw/engines/overlay/overlay_retopology.c

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source/blender/draw/engines/overlay/overlay_retopology.c

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/*
fclemUnsubmitted
Not Done
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I'm not convinced we need to separate into another file.

fclem: I'm not convinced we need to separate into another file.
* 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 "BKE_object.h"
#include "UI_resources.h"
#include "draw_cache_impl.h"
#include "overlay_private.h"
void OVERLAY_retopology_init(OVERLAY_Data *vedata)
{
OVERLAY_FramebufferList *fbl = vedata->fbl;
OVERLAY_TextureList *txl = vedata->txl;
DRW_texture_ensure_fullscreen_2d(&txl->retopology_depth_back_tx, GPU_DEPTH_COMPONENT24, 0);
DRW_texture_ensure_fullscreen_2d(&txl->retopology_depth_front_tx, GPU_DEPTH_COMPONENT24, 0);
GPU_framebuffer_ensure_config(&fbl->retopology_back_depth_fb,
{GPU_ATTACHMENT_TEXTURE(txl->retopology_depth_back_tx)});
GPU_framebuffer_ensure_config(&fbl->retopology_front_depth_fb,
{GPU_ATTACHMENT_TEXTURE(txl->retopology_depth_front_tx)});
}
void OVERLAY_retopology_cache_init(OVERLAY_Data *vedata)
{
OVERLAY_PassList *psl = vedata->psl;
OVERLAY_TextureList *txl = vedata->txl;
OVERLAY_StorageList *stl = vedata->stl;
OVERLAY_PrivateData *pd = stl->pd;
const DRWContextState *draw_ctx = DRW_context_state_get();
RegionView3D *rv3d = draw_ctx->rv3d;
Scene *scene = draw_ctx->scene;
ToolSettings *tsettings = scene->toolsettings;
DRWShadingGroup *grp;
if (pd->retopology.enabled) {
GPUShader *depth_sh = OVERLAY_shader_depth_only();
psl->retopology_depth_back_pass = DRW_pass_create(
"Retopology Depth Back Pass",
DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL | DRW_STATE_CULL_FRONT);
pd->retopology_depth_back_grp = DRW_shgroup_create(depth_sh, psl->retopology_depth_back_pass);
psl->retopology_depth_front_pass = DRW_pass_create(
"Retopology Depth Front Pass",
DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL | DRW_STATE_CULL_BACK);
pd->retopology_depth_front_grp = DRW_shgroup_create(depth_sh,
psl->retopology_depth_front_pass);
psl->retopology_depth_merge_pass = DRW_pass_create(
"Retopology Depth Merge", DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_ALWAYS);
grp = DRW_shgroup_create(OVERLAY_shader_retopology_depth_merge(),
psl->retopology_depth_merge_pass);
DRW_shgroup_uniform_texture(grp, "inputDepthBackTexture", txl->retopology_depth_back_tx);
DRW_shgroup_uniform_texture(grp, "inputDepthFrontTexture", txl->retopology_depth_front_tx);
DRW_shgroup_uniform_float_copy(grp, "depthMixFactor", tsettings->retopology.depth_mix_factor);
DRW_shgroup_call(grp, DRW_cache_fullscreen_quad_get(), NULL);
DRWState state = DRW_STATE_WRITE_DEPTH | DRW_STATE_DEPTH_LESS_EQUAL |
(((tsettings->retopology.flag & RETOPOLOGY_OVERLAY_FILL_FACES) != 0) ?
DRW_STATE_WRITE_COLOR | DRW_STATE_BLEND_ALPHA :
0);
psl->retopology_color_pass = DRW_pass_create("Retopology Face Pass", state);
float face_fill_color[4];
UI_GetThemeColor4fv(TH_FACE_RETOPOLOGY, face_fill_color);
grp = DRW_shgroup_create(OVERLAY_shader_retopology_face(), psl->retopology_color_pass);
DRW_shgroup_uniform_vec4_copy(grp, "color", face_fill_color);
if (rv3d->rflag & RV3D_CLIPPING) {
DRW_shgroup_state_enable(grp, DRW_STATE_CLIP_PLANES);
}
pd->retopology_color_grp = grp;
}
else {
psl->retopology_depth_back_pass = NULL;
psl->retopology_depth_front_pass = NULL;
psl->retopology_depth_merge_pass = NULL;
psl->retopology_color_pass = NULL;
pd->retopology_depth_back_grp = NULL;
pd->retopology_color_grp = NULL;
}
}
void OVERLAY_retopology_cache_populate(OVERLAY_Data *vedata, Object *ob)
{
const DRWContextState *draw_ctx = DRW_context_state_get();
OVERLAY_StorageList *stl = vedata->stl;
OVERLAY_PrivateData *pd = stl->pd;
struct GPUBatch *geom = NULL;
const bool is_in_edit_mode = (ob == draw_ctx->object_edit) || BKE_object_is_in_editmode(ob);
if (ob->type == OB_MESH && is_in_edit_mode) {
geom = DRW_mesh_batch_cache_get_edit_triangles(ob->data);
}
else {
geom = DRW_cache_object_surface_get(ob);
}
if (!geom) {
return;
}
if (is_in_edit_mode) {
DRW_shgroup_call_no_cull(pd->retopology_color_grp, geom, ob);
}
DRW_shgroup_call_no_cull(pd->retopology_depth_back_grp, geom, ob);
DRW_shgroup_call_no_cull(pd->retopology_depth_front_grp, geom, ob);
}
void OVERLAY_retopology_draw(OVERLAY_Data *vedata)
{
OVERLAY_FramebufferList *fbl = vedata->fbl;
OVERLAY_PassList *psl = vedata->psl;
if (DRW_state_is_fbo()) {
GPU_framebuffer_bind(fbl->retopology_back_depth_fb);
GPU_framebuffer_clear_depth(fbl->retopology_back_depth_fb, 1.0f);
DRW_draw_pass(psl->retopology_depth_back_pass);
GPU_framebuffer_bind(fbl->retopology_front_depth_fb);
GPU_framebuffer_clear_depth(fbl->retopology_front_depth_fb, 1.0f);
DRW_draw_pass(psl->retopology_depth_front_pass);
GPU_framebuffer_bind(fbl->overlay_default_fb);
DRW_draw_pass(psl->retopology_depth_merge_pass);
}
DRW_draw_pass(psl->retopology_color_pass);
}