diff --git a/03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md b/03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md
index 209c72f..77a55fa 100644
--- a/03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md
+++ b/03-UnrealEngine/卡通渲染相关资料/渲染功能/阴影控制/ToonShadow.md
@@ -41,17 +41,36 @@ if(PrimitiveSceneinfo->Proxy->IsToonDisableSelfShadow())
 	{
 		const FViewInfo& View = Views[ViewIndex];
 		const FMatrix& ViewMatrix = View.ShadowViewMatrices.GetViewMatrix()
-		FVector LightDirection = Lightsceneinfo->Proxy- GetDirection();
-		const FVector CameraDirection = ViewMatrix.GetColumn(2).GetSafeNonmal()
+		FVector LightDirection = Lightsceneinfo->Proxy->GetDirection();
+		const FVector CameraDirection = ViewMatrix.GetColumn(2).GetSafeNormal()
 		float LightViewBlendFactor = PrimitiveSceneinfo->Proxy->GetToonHalfVienShadowFactor();
 		Fvector HalfViewLightDir = (LightDirection + ( 1 - LightViewBlendFactor) + CameraDirection * LightViewBlendFactor).GetSafeNormal();
-		FMatrix FinalCombineMatrix = FNnverseRotationMatrix(HalfViewLightDir.Rotation())
-		ShadowInitializer.WorldTolight = FinalCombineMatrix;
+		FMatrix FinalCombineMatrix = FInverseRotationMatrix(HalfViewLightDir.Rotation())
+		ShadowInitializer.WorldToLight = FinalCombineMatrix;
 	}
 ...
  }
 ```
 
+相关代码位于`FDirectionalLightSceneProxy::GetPerObjectProjectedShadowInitializer()`，在在FSceneRenderer::CreatePerObjectProjectedShadow()被调用。
+```c++
+virtual bool GetPerObjectProjectedShadowInitializer(const FBoxSphereBounds& SubjectBounds,FPerObjectProjectedShadowInitializer& OutInitializer) const override
+	{
+		OutInitializer.PreShadowTranslation = -SubjectBounds.Origin;
+		OutInitializer.WorldToLight = FInverseRotationMatrix(FVector(WorldToLight.M[0][0],WorldToLight.M[1][0],WorldToLight.M[2][0]).GetSafeNormal().Rotation());
+		OutInitializer.Scales = FVector2D(1.0f / SubjectBounds.SphereRadius,1.0f / SubjectBounds.SphereRadius);
+		OutInitializer.SubjectBounds = FBoxSphereBounds(FVector::ZeroVector,SubjectBounds.BoxExtent,SubjectBounds.SphereRadius);
+		OutInitializer.WAxis = FVector4(0,0,0,1);
+		OutInitializer.MinLightW = -UE_OLD_HALF_WORLD_MAX;
+		// Reduce casting distance on a directional light
+		// This is necessary to improve floating point precision in several places, especially when deriving frustum verts from InvReceiverMatrix
+		// This takes the object size into account to ensure that large objects get an extended distance
+		OutInitializer.MaxDistanceToCastInLightW = FMath::Clamp(SubjectBounds.SphereRadius * CVarPerObjectCastDistanceRadiusScale.GetValueOnRenderThread(), CVarPerObjectCastDistanceMin.GetValueOnRenderThread(), (float)WORLD_MAX);
+
+		return true;
+	}
+```
+
 PS.很有可能需要创建2个Atlas。Atlas的创建位于***FSceneRenderer::AllocateCachedShadowDepthTargets()***。数据存储在***SortedShadowsForShadowDepthPass.ShadowMapAtlases***中。大致由FSceneRenderer::FinishInitDynamicShadows()调用。
 
 **阴影Projection阶段**: