Files
UnrealEngine/Engine/Source/Editor/UnrealEd/Private/ThumbnailRendering/AnimSequenceThumbnailRenderer.cpp
2025-05-18 13:04:45 +08:00

77 lines
2.2 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#include "ThumbnailRendering/AnimSequenceThumbnailRenderer.h"
#include "Misc/App.h"
#include "ShowFlags.h"
#include "SceneView.h"
#include "Animation/AnimSequenceBase.h"
#include "ThumbnailHelpers.h"
#include "Animation/Skeleton.h"
#include "Engine/SkeletalMesh.h"
UAnimSequenceThumbnailRenderer::UAnimSequenceThumbnailRenderer(const FObjectInitializer& ObjectInitializer)
: Super(ObjectInitializer)
{
ThumbnailScene = nullptr;
}
bool UAnimSequenceThumbnailRenderer::CanVisualizeAsset(UObject* Object)
{
UAnimSequenceBase* AnimSequence = Cast<UAnimSequenceBase>(Object);
if (AnimSequence != nullptr)
{
if (USkeleton* Skeleton = AnimSequence->GetSkeleton())
{
USkeletalMesh* PreviewSkeletalMesh = Skeleton->GetAssetPreviewMesh(AnimSequence);
if (PreviewSkeletalMesh == nullptr)
{
PreviewSkeletalMesh = Skeleton->FindCompatibleMesh();
}
if (PreviewSkeletalMesh && (PreviewSkeletalMesh->IsCompiling() || PreviewSkeletalMesh->GetResourceForRendering() == nullptr))
{
return false;
}
}
}
return true;
}
void UAnimSequenceThumbnailRenderer::Draw(UObject* Object, int32 X, int32 Y, uint32 Width, uint32 Height, FRenderTarget* RenderTarget, FCanvas* Canvas, bool bAdditionalViewFamily)
{
UAnimSequenceBase* Anim = Cast<UAnimSequenceBase>(Object);
if (Anim != nullptr)
{
if ( ThumbnailScene == nullptr )
{
ThumbnailScene = new FAnimationSequenceThumbnailScene();
}
if(ThumbnailScene->SetAnimation(Anim))
{
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->SetAnimation(nullptr);
}
}
}
void UAnimSequenceThumbnailRenderer::BeginDestroy()
{
if ( ThumbnailScene != nullptr )
{
delete ThumbnailScene;
ThumbnailScene = nullptr;
}
Super::BeginDestroy();
}