61 lines
2.0 KiB
C++
61 lines
2.0 KiB
C++
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// Copyright Epic Games, Inc. All Rights Reserved.
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#include "ThumbnailRendering/ClassThumbnailRenderer.h"
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#include "ShowFlags.h"
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#include "SceneView.h"
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#include "Misc/App.h"
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UClassThumbnailRenderer::UClassThumbnailRenderer(const FObjectInitializer& ObjectInitializer)
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: Super(ObjectInitializer)
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{
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}
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bool UClassThumbnailRenderer::CanVisualizeAsset(UObject* Object)
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{
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UClass* Class = Cast<UClass>(Object);
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// Only visualize actor based classes
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if (Class && Class->IsChildOf(AActor::StaticClass()))
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{
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// Try to find any visible primitive components in the class' CDO
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AActor* CDO = Class->GetDefaultObject<AActor>();
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for (UActorComponent* Component: CDO->GetComponents())
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{
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if (FClassThumbnailScene::IsValidComponentForVisualization(Component))
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{
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return true;
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}
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}
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}
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return false;
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}
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void UClassThumbnailRenderer::Draw(UObject* Object, int32 X, int32 Y, uint32 Width, uint32 Height, FRenderTarget* RenderTarget, FCanvas* Canvas, bool bAdditionalViewFamily)
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{
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UClass* Class = Cast<UClass>(Object);
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if (Class != nullptr)
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{
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TSharedRef<FClassThumbnailScene> ThumbnailScene = ThumbnailScenes.EnsureThumbnailScene(Class);
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ThumbnailScene->SetClass(Class);
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FSceneViewFamilyContext ViewFamily(FSceneViewFamily::ConstructionValues(RenderTarget, ThumbnailScene->GetScene(), FEngineShowFlags(ESFIM_Game))
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.SetWorldTimes(FApp::GetCurrentTime() - GStartTime, FApp::GetDeltaTime(), FApp::GetCurrentTime() - GStartTime)
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.SetAdditionalViewFamily(bAdditionalViewFamily));
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ViewFamily.EngineShowFlags.DisableAdvancedFeatures();
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ViewFamily.EngineShowFlags.MotionBlur = 0;
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ThumbnailScene->GetView(&ViewFamily, X, Y, Width, Height);
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RenderViewFamily(Canvas, &ViewFamily);
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}
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}
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void UClassThumbnailRenderer::BeginDestroy()
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{
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ThumbnailScenes.Clear();
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Super::BeginDestroy();
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}
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