void EEVEE_reflection_compute(EEVEE_ViewLayerData *UNUSED(sldata), EEVEE_Data *vedata)
{
EEVEE_PassList *psl = vedata->psl;
EEVEE_FramebufferList *fbl = vedata->fbl;
EEVEE_StorageList *stl = vedata->stl;
EEVEE_TextureList *txl = vedata->txl;
EEVEE_EffectsInfo *effects = stl->effects;
if (((effects->enabled_effects & EFFECT_SSR) != 0) && stl->g_data->valid_double_buffer) {
DefaultTextureList *dtxl = DRW_viewport_texture_list_get();
e_data.depth_src = dtxl->depth;
DRW_stats_group_start("SSR");
/* Raytrace. */
GPU_framebuffer_bind(fbl->screen_tracing_fb);
DRW_draw_pass(psl->ssr_raytrace);
EEVEE_downsample_buffer(vedata, txl->color_double_buffer, 9);
/* Resolve at fullres */
int sample = (DRW_state_is_image_render()) ? effects->taa_render_sample :
effects->taa_current_sample;
/* Doing a neighbor shift only after a few iteration.
* We wait for a prime number of cycles to avoid noise correlation.
* This reduces variance faster. */
effects->ssr_neighbor_ofs = ((sample / 5) % 8) * 4;
switch ((sample / 11) % 4) {
case 0:
effects->ssr_halfres_ofs[0] = 0;
effects->ssr_halfres_ofs[1] = 0;
break;
case 1:
effects->ssr_halfres_ofs[0] = 0;
effects->ssr_halfres_ofs[1] = 1;
break;
case 2:
effects->ssr_halfres_ofs[0] = 1;
effects->ssr_halfres_ofs[1] = 0;
break;
case 4:
effects->ssr_halfres_ofs[0] = 1;
effects->ssr_halfres_ofs[1] = 1;
break;
}
GPU_framebuffer_bind(fbl->main_color_fb);
DRW_draw_pass(psl->ssr_resolve);
/* Restore */
GPU_framebuffer_bind(fbl->main_fb);
DRW_stats_group_end();
}
}
void EEVEE_occlusion_output_accumulate(EEVEE_ViewLayerData *sldata, EEVEE_Data *vedata)
{
EEVEE_FramebufferList *fbl = vedata->fbl;
EEVEE_PassList *psl = vedata->psl;
if (fbl->ao_accum_fb != NULL) {
DefaultTextureList *dtxl = DRW_viewport_texture_list_get();
/* Update the min_max/horizon buffers so the refracion materials appear in it. */
EEVEE_create_minmax_buffer(vedata, dtxl->depth, -1);
EEVEE_occlusion_compute(sldata, vedata, dtxl->depth, -1);
GPU_framebuffer_bind(fbl->ao_accum_fb);
DRW_draw_pass(psl->ao_accum_ps);
/* Restore */
GPU_framebuffer_bind(fbl->main_fb);
}
}
void EEVEE_occlusion_draw_debug(EEVEE_ViewLayerData *UNUSED(sldata), EEVEE_Data *vedata)
{
EEVEE_PassList *psl = vedata->psl;
EEVEE_FramebufferList *fbl = vedata->fbl;
EEVEE_StorageList *stl = vedata->stl;
EEVEE_EffectsInfo *effects = stl->effects;
if (((effects->enabled_effects & EFFECT_GTAO) != 0) && (G.debug_value == 6)) {
DRW_stats_group_start("GTAO Debug");
GPU_framebuffer_bind(fbl->gtao_debug_fb);
DRW_draw_pass(psl->ao_horizon_debug);
/* Restore */
GPU_framebuffer_bind(fbl->main_fb);
DRW_stats_group_end();
}
}
void EEVEE_occlusion_compute(EEVEE_ViewLayerData *UNUSED(sldata),
EEVEE_Data *vedata,
struct GPUTexture *depth_src,
int layer)
{
EEVEE_PassList *psl = vedata->psl;
EEVEE_FramebufferList *fbl = vedata->fbl;
EEVEE_StorageList *stl = vedata->stl;
EEVEE_EffectsInfo *effects = stl->effects;
if ((effects->enabled_effects & EFFECT_GTAO) != 0) {
DRW_stats_group_start("GTAO Horizon Scan");
effects->ao_src_depth = depth_src;
effects->ao_depth_layer = layer;
GPU_framebuffer_bind(fbl->gtao_fb);
if (layer >= 0) {
DRW_draw_pass(psl->ao_horizon_search_layer);
}
else {
DRW_draw_pass(psl->ao_horizon_search);
}
if (GPU_mip_render_workaround() ||
GPU_type_matches(GPU_DEVICE_INTEL_UHD, GPU_OS_WIN, GPU_DRIVER_ANY)) {
/* Fix dot corruption on intel HD5XX/HD6XX series. */
GPU_flush();
}
/* Restore */
GPU_framebuffer_bind(fbl->main_fb);
DRW_stats_group_end();
}
}
void EEVEE_refraction_compute(EEVEE_ViewLayerData *UNUSED(sldata), EEVEE_Data *vedata)
{
EEVEE_FramebufferList *fbl = vedata->fbl;
EEVEE_TextureList *txl = vedata->txl;
EEVEE_StorageList *stl = vedata->stl;
EEVEE_EffectsInfo *effects = stl->effects;
if ((effects->enabled_effects & EFFECT_REFRACT) != 0) {
GPU_framebuffer_blit(fbl->main_fb, 0, fbl->refract_fb, 0, GPU_COLOR_BIT);
EEVEE_downsample_buffer(vedata, txl->refract_color, 9);
/* Restore */
GPU_framebuffer_bind(fbl->main_fb);
}
}
/* TODO: Creating, attaching texture, and destroying a framebuffer is quite slow.
* Calling this function should be avoided during interactive drawing. */
static void view3d_opengl_read_Z_pixels(GPUViewport *viewport, rcti *rect, void *data)
{
DefaultTextureList *dtxl = (DefaultTextureList *)GPU_viewport_texture_list_get(viewport);
GPUFrameBuffer *tmp_fb = GPU_framebuffer_create();
GPU_framebuffer_texture_attach(tmp_fb, dtxl->depth, 0, 0);
GPU_framebuffer_bind(tmp_fb);
glReadPixels(rect->xmin,
rect->ymin,
BLI_rcti_size_x(rect),
BLI_rcti_size_y(rect),
GL_DEPTH_COMPONENT,
GL_FLOAT,
data);
GPU_framebuffer_restore();
GPU_framebuffer_free(tmp_fb);
}
void EEVEE_occlusion_output_init(EEVEE_ViewLayerData *sldata, EEVEE_Data *vedata)
{
EEVEE_FramebufferList *fbl = vedata->fbl;
EEVEE_TextureList *txl = vedata->txl;
EEVEE_StorageList *stl = vedata->stl;
EEVEE_PassList *psl = vedata->psl;
EEVEE_EffectsInfo *effects = stl->effects;
const DRWContextState *draw_ctx = DRW_context_state_get();
const Scene *scene_eval = DEG_get_evaluated_scene(draw_ctx->depsgraph);
if (scene_eval->eevee.flag & SCE_EEVEE_GTAO_ENABLED) {
DefaultTextureList *dtxl = DRW_viewport_texture_list_get();
float clear[4] = {0.0f, 0.0f, 0.0f, 0.0f};
DRW_texture_ensure_fullscreen_2d(
&txl->ao_accum, GPU_R32F, 0); /* Should be enough precision for many samples. */
GPU_framebuffer_ensure_config(&fbl->ao_accum_fb,
{GPU_ATTACHMENT_NONE, GPU_ATTACHMENT_TEXTURE(txl->ao_accum)});
/* Clear texture. */
GPU_framebuffer_bind(fbl->ao_accum_fb);
GPU_framebuffer_clear_color(fbl->ao_accum_fb, clear);
/* Accumulation pass */
DRWState state = DRW_STATE_WRITE_COLOR | DRW_STATE_ADDITIVE;
psl->ao_accum_ps = DRW_pass_create("AO Accum", state);
DRWShadingGroup *grp = DRW_shgroup_create(e_data.gtao_debug_sh, psl->ao_accum_ps);
DRW_shgroup_uniform_texture(grp, "utilTex", EEVEE_materials_get_util_tex());
DRW_shgroup_uniform_texture_ref(grp, "maxzBuffer", &txl->maxzbuffer);
DRW_shgroup_uniform_texture_ref(grp, "depthBuffer", &dtxl->depth);
DRW_shgroup_uniform_texture_ref(grp, "normalBuffer", &effects->ssr_normal_input);
DRW_shgroup_uniform_texture_ref(grp, "horizonBuffer", &effects->gtao_horizons);
DRW_shgroup_uniform_block(grp, "common_block", sldata->common_ubo);
DRW_shgroup_call(grp, DRW_cache_fullscreen_quad_get(), NULL);
}
else {
/* Cleanup to release memory */
DRW_TEXTURE_FREE_SAFE(txl->ao_accum);
GPU_FRAMEBUFFER_FREE_SAFE(fbl->ao_accum_fb);
}
}
static void eevee_lightbake_render_world_sample(void *ved, void *user_data)
{
EEVEE_Data *vedata = (EEVEE_Data *)ved;
EEVEE_ViewLayerData *sldata = EEVEE_view_layer_data_ensure();
EEVEE_LightBake *lbake = (EEVEE_LightBake *)user_data;
Scene *scene_eval = DEG_get_evaluated_scene(lbake->depsgraph);
LightCache *lcache = scene_eval->eevee.light_cache;
float clamp = scene_eval->eevee.gi_glossy_clamp;
float filter_quality = scene_eval->eevee.gi_filter_quality;
/* TODO do this once for the whole bake when we have independent DRWManagers. */
eevee_lightbake_cache_create(vedata, lbake);
sldata->common_data.ray_type = EEVEE_RAY_GLOSSY;
sldata->common_data.ray_depth = 1;
DRW_uniformbuffer_update(sldata->common_ubo, &sldata->common_data);
EEVEE_lightbake_render_world(sldata, vedata, lbake->rt_fb);
EEVEE_lightbake_filter_glossy(sldata,
vedata,
lbake->rt_color,
lbake->store_fb,
0,
1.0f,
lcache->mips_len,
filter_quality,
clamp);
sldata->common_data.ray_type = EEVEE_RAY_DIFFUSE;
sldata->common_data.ray_depth = 1;
DRW_uniformbuffer_update(sldata->common_ubo, &sldata->common_data);
EEVEE_lightbake_render_world(sldata, vedata, lbake->rt_fb);
EEVEE_lightbake_filter_diffuse(sldata, vedata, lbake->rt_color, lbake->store_fb, 0, 1.0f);
/* Clear the cache to avoid white values in the grid. */
GPU_framebuffer_texture_attach(lbake->store_fb, lbake->grid_prev, 0, 0);
GPU_framebuffer_bind(lbake->store_fb);
/* Clear to 1.0f for visibility. */
GPU_framebuffer_clear_color(lbake->store_fb, ((float[4]){1.0f, 1.0f, 1.0f, 1.0f}));
