vault backup: 2024-07-22 11:11:05

03-UnrealEngine/Rendering/RenderFeature/平面反射.md

@@ -0,0 +1,68 @@
+---
+title: Untitled
+date: 2024-07-19 22:09:12
+excerpt: 
+tags: 
+rating: ⭐
+---
+
+```c++
+for (auto It = SceneCaptureComponent->HiddenActors.CreateConstIterator(); It; ++It)
+{
+	AActor* Actor = *It;
+
+	if (Actor)
+	{
+		for (UActorComponent* Component : Actor->GetComponents())
+		{
+			if (UPrimitiveComponent* PrimComp = Cast<UPrimitiveComponent>(Component))
+			{
+				View->HiddenPrimitives.Add(PrimComp->ComponentId);
+			}
+		}
+	}
+}
+
+if (SceneCaptureComponent->PrimitiveRenderMode == ESceneCapturePrimitiveRenderMode::PRM_UseShowOnlyList)
+{
+		View->ShowOnlyPrimitives.Emplace();
+
+	for (auto It = SceneCaptureComponent->ShowOnlyComponents.CreateConstIterator(); It; ++It)
+	{
+		// If the primitive component was destroyed, the weak pointer will return NULL.
+		UPrimitiveComponent* PrimitiveComponent = It->Get();
+		if (PrimitiveComponent)
+		{
+			View->ShowOnlyPrimitives->Add(PrimitiveComponent->ComponentId);
+		}
+	}
+
+	for (auto It = SceneCaptureComponent->ShowOnlyActors.CreateConstIterator(); It; ++It)
+	{
+		AActor* Actor = *It;
+
+		if (Actor)
+		{
+			for (UActorComponent* Component : Actor->GetComponents())
+			{
+				if (UPrimitiveComponent* PrimComp = Cast<UPrimitiveComponent>(Component))
+				{
+					View->ShowOnlyPrimitives->Add(PrimComp->ComponentId);
+				}
+			}
+		}
+	}
+}
+else if (SceneCaptureComponent->ShowOnlyComponents.Num() > 0 || SceneCaptureComponent->ShowOnlyActors.Num() > 0)
+{
+	static bool bWarned = false;
+
+	if (!bWarned)
+	{
+		UE_LOG(LogRenderer, Log, TEXT("Scene Capture has ShowOnlyComponents or ShowOnlyActors ignored by the PrimitiveRenderMode setting! %s"), *SceneCaptureComponent->GetPathName());
+		bWarned = true;
+	}
+}
+
+ViewFamily.Views.Add(View);
+```