StereoRenderUtils.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreTypes.h"
 
enum EShaderPlatform : uint16;
 
namespace UE::StereoRenderUtils
{
 
/*
    * Detect the single-draw stereo shader variant, in order to support usage across different platforms
    */
class FStereoShaderAspects
{
public:
    RENDERCORE_API FStereoShaderAspects(EShaderPlatform Platform);
 
    RENDERCORE_API FStereoShaderAspects();
 
    inline bool IsInstancedStereoEnabled() const { return bInstancedStereoEnabled; }
 
    inline bool IsMobileMultiViewEnabled() const { return bMobileMultiViewEnabled; };
 
    inline bool IsInstancedMultiViewportEnabled() const { return bInstancedMultiViewportEnabled; };
 
    UE_DEPRECATED(5.6, "The MMV fallback path is deprecated and will be disabled via UE_SUPPORT_MMV_FALLBACK by default even if this function returns true.")
    inline bool IsMobileMultiViewFallbackEnabled() const { return bMobileMultiViewFallback; };
 
private:
    bool bInstancedStereoEnabled : 1;
    bool bMobileMultiViewEnabled : 1;
    bool bInstancedMultiViewportEnabled : 1;
 
    bool bInstancedStereoNative : 1;
    bool bMobileMultiViewNative : 1;
    bool bMobileMultiViewFallback : 1;
 
};
 
RENDERCORE_API void LogISRInit(const UE::StereoRenderUtils::FStereoShaderAspects& Aspects);
 
RENDERCORE_API void VerifyISRConfig(const UE::StereoRenderUtils::FStereoShaderAspects& Aspects, EShaderPlatform ShaderPlatform);
 
} // namespace UE::StereoRenderUtils