vault backup: 2024-12-19 18:06:46

03-UnrealEngine/Rendering/RenderingPipeline/Lighting/Shadow.md

@@ -203,10 +203,6 @@ void FSceneRenderer::InitDynamicShadows(FRHICommandListImmediate& RHICmdList, FG
 }
 ```
 
-
-
-
-
 # ShadowDepths
 渲染阴影深度贴图与图集。
 
@@ -442,7 +438,7 @@ bool FShadowDepthPassMeshProcessor::TryAddMeshBatch(const FMeshBatch& RESTRICT M
 
 ## ShaderDepthBias
 相关计算位于FProjectedShadowInfo::UpdateShaderDepthBias()。
-起效条件：勾选Dynamic Inset Shadow
+起效条件：勾选Dynamic Inset Shadow（bCastInsetShadow）或者勾选bSelfShadowOnly。（骨骼物体有额外的bCastCapsuleDirectShadow）
 CMD: CVarPerObjectDirectionalShadowDepthBias => r.Shadow.PerObjectDirectionalDepthBias 
 ```c++
 // per object shadows (the whole-scene are taken care of above)
@@ -463,6 +459,9 @@ if(bDirectionalLight)
 }
 ```
 
+### bCastInsetShadow
+bCastInsetShadow => PrimitiveProxy->CastsInsetShadow() => DoesPrimitiveCastInsetShadow() => FilterPrimitiveForShadows() => FGatherShadowPrimitivesPacket::AnyThreadTask() => FGatherShadowPrimitivesPrepareTask::DoTask()
+
 ## Shader
 VertexShader为：ShadowDepthVertexShader.usf，有4种变体：
 - IMPLEMENT_SHADOW_DEPTH_SHADERMODE_SHADERS(VertexShadowDepth_PerspectiveCorrect);