diff --git a/03-UnrealEngine/卡通渲染相关资料/渲染功能/PostProcess/ToonPostProcess.md b/03-UnrealEngine/卡通渲染相关资料/渲染功能/PostProcess/ToonPostProcess.md
index a0aa5b5..bf09812 100644
--- a/03-UnrealEngine/卡通渲染相关资料/渲染功能/PostProcess/ToonPostProcess.md
+++ b/03-UnrealEngine/卡通渲染相关资料/渲染功能/PostProcess/ToonPostProcess.md
@@ -51,3 +51,22 @@ uint GetShadingModelId(float2 UV)
 	return DecodeShadingModelId(Texture2DSampleLevel(SceneTexturesStruct.GBufferBTexture, SceneTexturesStruct_GBufferBTextureSampler, UV, 0).a);
 }
 ```
+
+## ShadingModel判断
+```c++
+bool IsToonShadingModel(float2 UV)
+{
+	uint ShadingModel = DecodeShadingModelId(Texture2DSampleLevel(SceneTexturesStruct.GBufferBTexture, SceneTexturesStruct_GBufferBTextureSampler, UV, 0).a);
+	return ShadingModel == SHADINGMODELID_TOONSTANDARD 
+		|| ShadingModel == SHADINGMODELID_PREINTEGRATED_SKIN;
+}
+```
+PS.需要Shader添加FSceneTextureShaderParameters/FSceneTextureUniformParameters。
+```c++
+IMPLEMENT_STATIC_UNIFORM_BUFFER_STRUCT(FSceneTextureUniformParameters, "SceneTexturesStruct", SceneTextures);
+
+BEGIN_SHADER_PARAMETER_STRUCT(FSceneTextureShaderParameters, ENGINE_API)  
+    SHADER_PARAMETER_RDG_UNIFORM_BUFFER(FSceneTextureUniformParameters, SceneTextures)  
+    SHADER_PARAMETER_RDG_UNIFORM_BUFFER(FMobileSceneTextureUniformParameters, MobileSceneTextures)  
+END_SHADER_PARAMETER_STRUCT()
+```
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