Files
UnrealEngine/Engine/Plugins/Runtime/HairStrands/Source/HairStrandsEditor/Private/GroomAssetThumbnailRenderer.cpp
2025-05-18 13:04:45 +08:00

57 lines
1.7 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#include "GroomAssetThumbnailRenderer.h"
#include "Misc/App.h"
#include "ShowFlags.h"
#include "SceneInterface.h"
#include "SceneView.h"
#include "ThumbnailHelpers.h"
#include "GroomAsset.h"
bool UGroomAssetThumbnailRenderer::CanVisualizeAsset(UObject* Object)
{
if (UGroomAsset* GroomAsset = Cast<UGroomAsset>(Object))
{
return GroomAsset->IsValid();
}
return false;
}
void UGroomAssetThumbnailRenderer::Draw(UObject* Object, int32 X, int32 Y, uint32 Width, uint32 Height, FRenderTarget* RenderTarget, FCanvas* Canvas, bool bAdditionalViewFamily)
{
if (UGroomAsset* GroomAsset = Cast<UGroomAsset>(Object); GroomAsset && GroomAsset->IsValid())
{
if (!ThumbnailScene.IsValid() || !ensure(ThumbnailScene->GetWorld()))
{
if (ThumbnailScene.IsValid())
{
FlushRenderingCommands();
ThumbnailScene.Reset();
}
ThumbnailScene = MakeUnique<FGroomAssetThumbnailScene>();
}
ThumbnailScene->SetGroomAsset(GroomAsset);
ThumbnailScene->GetScene()->UpdateSpeedTreeWind(0.0);
FSceneViewFamilyContext ViewFamily(FSceneViewFamily::ConstructionValues(RenderTarget, ThumbnailScene->GetScene(), FEngineShowFlags(ESFIM_Game))
.SetTime(UThumbnailRenderer::GetTime())
.SetAdditionalViewFamily(bAdditionalViewFamily));
ViewFamily.EngineShowFlags.DisableAdvancedFeatures();
ViewFamily.EngineShowFlags.MotionBlur = 0;
ViewFamily.EngineShowFlags.LOD = 0;
RenderViewFamily(Canvas, &ViewFamily, ThumbnailScene->CreateView(&ViewFamily, X, Y, Width, Height));
ThumbnailScene->CleanupSceneAfterThumbnailRender();
}
}
void UGroomAssetThumbnailRenderer::BeginDestroy()
{
ThumbnailScene.Reset();
Super::BeginDestroy();
}