diff --git a/03-UnrealEngine/Rendering/RenderingPipeline/Materials/MeshDraw.md b/03-UnrealEngine/Rendering/RenderingPipeline/Materials/MeshDraw.md
index ee6d8f7..683da3a 100644
--- a/03-UnrealEngine/Rendering/RenderingPipeline/Materials/MeshDraw.md
+++ b/03-UnrealEngine/Rendering/RenderingPipeline/Materials/MeshDraw.md
@@ -32,6 +32,73 @@ PS.使用的Shader必须是`FNaniteGlobalShader`的子类。
 
 DrawNaniteMaterialPass() => SubmitNaniteIndirectMaterial()
 ## DepthStencil
+***TStaticDepthStencilState***
+-  RDG 04 Graphics Pipeline State Initializer https://zhuanlan.zhihu.com/p/582020846
+
+
+```c++
+DrawRenderState.SetDepthStencilState(TStaticDepthStencilState<false, CF_Equal>::GetRHI());
+
+template<bool bDepthTest, ECompareFunction CompareFunction, uint32 StencilWriteMask>
+void SetDepthStencilStateForBasePass_Internal(FMeshPassProcessorRenderState& InDrawRenderState)
+{
+	InDrawRenderState.SetDepthStencilState(TStaticDepthStencilState<
+		bDepthTest, CompareFunction,
+		true, CF_Always, SO_Keep, SO_Keep, SO_Replace,
+		false, CF_Always, SO_Keep, SO_Keep, SO_Keep,
+		0xFF, StencilWriteMask>::GetRHI());
+}
+
+template<bool bDepthTest, ECompareFunction CompareFunction>
+void SetDepthStencilStateForBasePass_Internal(FMeshPassProcessorRenderState& InDrawRenderState, ERHIFeatureLevel::Type FeatureLevel)
+{	
+	const static bool bStrataDufferPassEnabled = Strata::IsStrataEnabled() && Strata::IsDBufferPassEnabled(GShaderPlatformForFeatureLevel[FeatureLevel]);
+	if (bStrataDufferPassEnabled)
+	{
+		SetDepthStencilStateForBasePass_Internal<bDepthTest, CompareFunction, GET_STENCIL_BIT_MASK(STRATA_RECEIVE_DBUFFER_NORMAL, 1) | GET_STENCIL_BIT_MASK(STRATA_RECEIVE_DBUFFER_DIFFUSE, 1) | GET_STENCIL_BIT_MASK(STRATA_RECEIVE_DBUFFER_ROUGHNESS, 1) | GET_STENCIL_BIT_MASK(DISTANCE_FIELD_REPRESENTATION, 1) | STENCIL_LIGHTING_CHANNELS_MASK(0x7)>(InDrawRenderState);
+	}
+	else
+	{
+		SetDepthStencilStateForBasePass_Internal<bDepthTest, CompareFunction, GET_STENCIL_BIT_MASK(RECEIVE_DECAL, 1) | GET_STENCIL_BIT_MASK(DISTANCE_FIELD_REPRESENTATION, 1) | STENCIL_LIGHTING_CHANNELS_MASK(0x7)>(InDrawRenderState);
+	}
+}
+
+void SetDepthStencilStateForBasePass(
+	FMeshPassProcessorRenderState& DrawRenderState,
+	ERHIFeatureLevel::Type FeatureLevel,
+	bool bDitheredLODTransition,
+	const FMaterial& MaterialResource,
+	bool bEnableReceiveDecalOutput,
+	bool bForceEnableStencilDitherState)
+{
+	const bool bMaskedInEarlyPass = (MaterialResource.IsMasked() || bDitheredLODTransition) && MaskedInEarlyPass(GShaderPlatformForFeatureLevel[FeatureLevel]);
+	if (bEnableReceiveDecalOutput)
+	{
+		if (bMaskedInEarlyPass)
+		{
+			SetDepthStencilStateForBasePass_Internal<false, CF_Equal>(DrawRenderState, FeatureLevel);
+		}
+		else if (DrawRenderState.GetDepthStencilAccess() & FExclusiveDepthStencil::DepthWrite)
+		{
+			SetDepthStencilStateForBasePass_Internal<true, CF_GreaterEqual>(DrawRenderState, FeatureLevel);
+		}
+		else
+		{
+			SetDepthStencilStateForBasePass_Internal<false, CF_GreaterEqual>(DrawRenderState, FeatureLevel);
+		}
+	}
+	else if (bMaskedInEarlyPass)
+	{
+		DrawRenderState.SetDepthStencilState(TStaticDepthStencilState<false, CF_Equal>::GetRHI());
+	}
+
+	if (bForceEnableStencilDitherState)
+	{
+		SetDepthStencilStateForBasePass_Internal<false, CF_Equal>(DrawRenderState, FeatureLevel);
+	}
+}
+```
+
 ### InitCustomDepthStencilContext()
 根据当前平台是否支持使用ComputeShader直接输出结果（bComputeExport）、以及是否写入Stencil缓存，以此来创建不同的资源。最终输出FCustomDepthContext。
 ```c++