VirtualTextureAdapter.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "Engine/Texture.h"
#include "VirtualTextureAdapter.generated.h"
 
UCLASS(ClassGroup = Rendering, BlueprintType, MinimalAPI)
class UVirtualTextureAdapter : public UTexture
{
    GENERATED_UCLASS_BODY()
 
    //~ Begin UTexture Interface.
    virtual FTextureResource* CreateResource() override;
    virtual ETextureClass GetTextureClass() const override;
    virtual EMaterialValueType GetMaterialType() const override;
    virtual bool IsCurrentlyVirtualTextured() const override { return true; }
    virtual float GetSurfaceWidth() const override;
    virtual float GetSurfaceHeight() const override;
    virtual float GetSurfaceDepth() const override { return 0; }
    virtual uint32 GetSurfaceArraySize() const override { return 0; }
    //~ End UTexture Interface.
 
public:
    UPROPERTY(EditAnywhere, Category = Texture)
    TObjectPtr<UTexture> Texture;
 
    UPROPERTY(EditAnywhere, AdvancedDisplay, Category = Texture)
    TObjectPtr<class UTexture2D> OverrideWithTextureFormat;
 
    UPROPERTY(EditAnywhere, Category = Texture)
    bool bUseDefaultTileSizes = true;
 
    UPROPERTY(EditAnywhere, Category = Texture, meta = (UIMin = "0", UIMax = "512", editcondition="!bUseDefaultTileSizes"))
    int32 TileSize = 0;
 
    UPROPERTY(EditAnywhere, Category = Texture, meta = (UIMin = "0", UIMax = "8", editcondition = "!bUseDefaultTileSizes"))
    int32 TileBorderSize = 0;
 
    ENGINE_API void Flush(FBox2f const& UVRect);
};