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

58 lines
1.7 KiB
C++

// Copyright Epic Games, Inc. All Rights Reserved.
#include "ThumbnailRendering/StaticMeshThumbnailRenderer.h"
#include "Misc/App.h"
#include "ShowFlags.h"
#include "SceneInterface.h"
#include "SceneView.h"
#include "ThumbnailHelpers.h"
#include "Engine/StaticMesh.h"
UStaticMeshThumbnailRenderer::UStaticMeshThumbnailRenderer(const FObjectInitializer& ObjectInitializer)
: Super(ObjectInitializer)
{
ThumbnailScene = nullptr;
}
void UStaticMeshThumbnailRenderer::Draw(UObject* Object, int32 X, int32 Y, uint32 Width, uint32 Height, FRenderTarget* RenderTarget, FCanvas* Canvas, bool bAdditionalViewFamily)
{
UStaticMesh* StaticMesh = Cast<UStaticMesh>(Object);
if (IsValid(StaticMesh))
{
if (ThumbnailScene == nullptr || ensure(ThumbnailScene->GetWorld() != nullptr) == false)
{
if (ThumbnailScene)
{
FlushRenderingCommands();
delete ThumbnailScene;
}
ThumbnailScene = new FStaticMeshThumbnailScene();
}
ThumbnailScene->SetStaticMesh(StaticMesh);
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->SetStaticMesh(nullptr);
}
}
void UStaticMeshThumbnailRenderer::BeginDestroy()
{
if ( ThumbnailScene != nullptr )
{
delete ThumbnailScene;
ThumbnailScene = nullptr;
}
Super::BeginDestroy();
}