vault backup: 2024-12-12 22:27:42

03-UnrealEngine/卡通渲染相关资料/渲染功能/其他参考/其他游戏与软件参考/鸣潮_女主_皮肤.png

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:e4f9f533ecf956176b62814d03d443ce7c51b027d1d100f24a3d6c8f247bb9d9
+size 1509308

03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md

@@ -387,6 +387,58 @@ void SetupShadowDepthPassUniformBuffer(
 }
 ```
 
+## FShadowDepthPassMeshProcessor
+CullMode：双面物体会使用CM_None，其余的使用 CM_CW或者CM_CCW。
+
+```c++
+bool FShadowDepthPassMeshProcessor::TryAddMeshBatch(const FMeshBatch& RESTRICT MeshBatch,
+	uint64 BatchElementMask,
+	const FPrimitiveSceneProxy* RESTRICT PrimitiveSceneProxy,
+	int32 StaticMeshId,
+	const FMaterialRenderProxy& MaterialRenderProxy,
+	const FMaterial& Material)
+{
+	const bool bShouldCastShadow = Material.ShouldCastDynamicShadows();
+
+	const FMeshDrawingPolicyOverrideSettings OverrideSettings = ComputeMeshOverrideSettings(MeshBatch);
+	const ERasterizerFillMode MeshFillMode = ComputeMeshFillMode(Material, OverrideSettings);
+
+	const ERasterizerCullMode MeshCullMode = FMeshPassProcessor::ComputeMeshCullMode(Material, OverrideSettings);
+	ERasterizerCullMode FinalCullMode = SetupShadowCullMode(FeatureLevel, MeshPassTargetType, ShadowDepthType, Material, MeshCullMode, PrimitiveSceneProxy->CastsShadowAsTwoSided());
+
+	//判断是否投射动态阴影 && 是否在MainPass中渲染 && 是否会走OpaquePass 
+	bool bResult = true;
+	if (bShouldCastShadow
+		&& ShouldIncludeDomainInMeshPass(Material.GetMaterialDomain())
+		&& ShouldIncludeMaterialInDefaultOpaquePass(Material)
+		&& EnumHasAnyFlags(MeshSelectionMask, MeshBatch.VertexFactory->SupportsGPUScene(FeatureLevel) ? EShadowMeshSelection::VSM : EShadowMeshSelection::SM))
+	{
+		const FMaterialRenderProxy* EffectiveMaterialRenderProxy = &MaterialRenderProxy;
+		const FMaterial* EffectiveMaterial = &Material;
+		const bool bVFTypeSupportsNullPixelShader = MeshBatch.VertexFactory->SupportsNullPixelShader();
+		const bool bEvaluateWPO = Material.MaterialModifiesMeshPosition_RenderThread()
+			&& (!ShouldOptimizedWPOAffectNonNaniteShaderSelection() || PrimitiveSceneProxy->EvaluateWorldPositionOffset());
+
+		//取得NullPixelShader以及计算材质中的WPO，之后如果对没有Pixel进行写入且没有改变WPO使用默认材质渲染；否则则采用当前模型的材质。
+		if (UseDefaultMaterialForShadowDepth(Material, bVFTypeSupportsNullPixelShader, bEvaluateWPO))
+		{
+			const FMaterialRenderProxy* DefaultProxy = UMaterial::GetDefaultMaterial(MD_Surface)->GetRenderProxy();
+			const FMaterial* DefaultMaterialResource = DefaultProxy->GetMaterialNoFallback(FeatureLevel);
+			check(DefaultMaterialResource);
+
+			// Override with the default material for opaque materials that don't modify mesh position.
+			EffectiveMaterialRenderProxy = DefaultProxy;
+			EffectiveMaterial = DefaultMaterialResource;
+		}
+
+		bResult = Process(MeshBatch, BatchElementMask, StaticMeshId, PrimitiveSceneProxy, *EffectiveMaterialRenderProxy, *EffectiveMaterial, MeshFillMode, FinalCullMode);
+	}
+
+	return bResult;
+}
+```
+
+
 # Lights
 ### Shader
 ShadowProjectionPixelShader.usf