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Overhaul compute shader based environment roughness calculation to improve performance and quality

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clayjohn
2026-01-12 15:18:32 -08:00
parent 2d0a589777
commit e33515c2e6
2 changed files with 53 additions and 31 deletions
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4
servers/rendering/renderer_rd/effects/copy_effects.cpp
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@@ -1375,7 +1375,7 @@ void CopyEffects::octmap_roughness(RID p_source_rd_texture, RID p_dest_texture,
// Remap to perceptual-roughness^2 to create more detail in lower mips and match the mapping of octmap_filter.
roughness.push_constant.roughness = p_roughness * p_roughness;
roughness.push_constant.sample_count = p_sample_count;
roughness.push_constant.sample_count = MIN(p_sample_count, 64u);
roughness.push_constant.source_size = p_source_size;
roughness.push_constant.dest_size = p_dest_size;
roughness.push_constant.use_direct_write = p_roughness == 0.0;
@@ -1432,7 +1432,7 @@ void CopyEffects::octmap_roughness_raster(RID p_source_rd_texture, RID p_dest_fr
memset(&roughness.push_constant, 0, sizeof(OctmapRoughnessPushConstant));
roughness.push_constant.roughness = p_roughness * p_roughness; // Shader expects roughness, not perceptual roughness, so multiply before passing in.
roughness.push_constant.sample_count = p_sample_count;
roughness.push_constant.sample_count = MAX(uint32_t(float(p_sample_count * 4u) * roughness.push_constant.roughness), 4u);
roughness.push_constant.source_size = p_source_size;
roughness.push_constant.dest_size = p_dest_size;
roughness.push_constant.use_direct_write = p_roughness == 0.0;