RuntimeVirtualTextureSceneProxy.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "VirtualTexturing.h"
#include "VirtualTextureEnum.h"
#include "VT/RuntimeVirtualTextureEnum.h"
 
class URuntimeVirtualTexture;
class URuntimeVirtualTextureComponent;
 
class FRuntimeVirtualTextureSceneProxy
{
public:
    FRuntimeVirtualTextureSceneProxy(URuntimeVirtualTextureComponent* InComponent);
    ~FRuntimeVirtualTextureSceneProxy();
 
    void Release();
 
    void MarkUnused();
 
    void Dirty(FBoxSphereBounds const& Bounds, EVTInvalidatePriority InvalidatePriority);
 
    void FlushDirtyPages();
 
    void RequestPreload(FBoxSphereBounds const& Bounds, int32 Level);
 
    bool IsAdaptive() const { return bAdaptive; }
    ERuntimeVirtualTextureMaterialType GetMaterialType() const { return MaterialType; }
    const FBox& GetBounds() const { return Bounds; }
    FVector4 GetUniformParameter(ERuntimeVirtualTextureShaderUniform UniformName) const;
    const IAllocatedVirtualTexture* GetAllocatedVirtualTexture() const { return AllocatedVirtualTexture; }
 
    int32 SceneIndex = -1;
    
    int32 RuntimeVirtualTextureId = -1;
 
    bool bHidePrimitivesInEditor = false;
    bool bHidePrimitivesInGame = false;
 
private:
    URuntimeVirtualTexture* VirtualTexture = nullptr;
 
    bool bAdaptive = false;
    ERuntimeVirtualTextureMaterialType MaterialType = ERuntimeVirtualTextureMaterialType::Count;
    FTransform Transform = FTransform::Identity;
    FBox Bounds = FBox(ForceInit);
    FIntPoint VirtualTextureSize = FIntPoint::ZeroValue;
    FVector4 ShaderUniforms[ERuntimeVirtualTextureShaderUniform_Count];
 
    FVirtualTextureProducerHandle ProducerHandle;
    IAllocatedVirtualTexture* AllocatedVirtualTexture = nullptr;
    int32 SpaceID = -1;
 
    int32 MaxDirtyLevel = 0;
 
    struct FDirtyRect
    {
        FIntRect Rect;
        EVTInvalidatePriority InvalidatePriority = EVTInvalidatePriority::Normal;
 
        void Union(const FDirtyRect& InOther)
        {
            Rect.Union(InOther.Rect);
            InvalidatePriority = static_cast<EVTInvalidatePriority>(FMath::Max(static_cast<uint8>(InvalidatePriority), static_cast<uint8>(InOther.InvalidatePriority)));
        }
    };
    TArray<FDirtyRect> DirtyRects;
    FDirtyRect CombinedDirtyRect;
 
    FDelegateHandle OnScreenWarningDelegateHandle;
};