// Copyright Epic Games, Inc. All Rights Reserved.

/*==============================================================================
        VolumeTexturePreview.h: Definitions for previewing 2d textures.
==============================================================================*/

#pragma once

#include "CoreMinimal.h"
#include "BatchedElements.h"

/**
 * Batched element parameters for previewing 2d textures.
 */
class UNREALED_API FBatchedElementVolumeTexturePreviewParameters: public FBatchedElementParameters
{
public:
    FBatchedElementVolumeTexturePreviewParameters(bool InViewModeAsDepthSlices, int32 InSizeZ, float InMipLevel, float InOpacity, bool InShowSlices, const FRotator& InTraceOrientation)
        : bViewModeAsDepthSlices(InViewModeAsDepthSlices), SizeZ(InSizeZ), MipLevel(InMipLevel), Opacity(InOpacity), bShowSlices(InShowSlices), TraceOrientation(InTraceOrientation)
    {
    }

    /** Binds vertex and pixel shaders for this element */
    virtual void BindShaders(FRHICommandList& RHICmdList, FGraphicsPipelineStateInitializer& GraphicsPSOInit, ERHIFeatureLevel::Type InFeatureLevel, const FMatrix& InTransform, const float InGamma, const FMatrix& ColorWeights, const FTexture* Texture) override;

private:
    /** Whether to render depth slices or trace into the volume */
    bool bViewModeAsDepthSlices;

    /** The size Z of the texture */
    int32 SizeZ;

    /** The mip level to visualize */
    float MipLevel;

    float Opacity;

    /** Whether to show each depth slize of the volume */
    bool bShowSlices;

    /** The orientation when tracing */
    FRotator TraceOrientation;
};