StaticMeshBatch.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "HAL/Platform.h"
#include "MeshBatch.h"
#include "MeshPassProcessor.h"
 
class FPrimitiveSceneInfo;
 
class FStaticMeshBatch : public FMeshBatch
{
public:
 
    FPrimitiveSceneInfo* PrimitiveSceneInfo;
 
    int32 Id;
 
    // Constructor/destructor.
    FStaticMeshBatch(FPrimitiveSceneInfo* InPrimitiveSceneInfo, const FMeshBatch& InMesh, FHitProxyId InHitProxyId);
    ~FStaticMeshBatch();
 
private:
    FStaticMeshBatch(const FStaticMeshBatch& InStaticMesh);
};
 
namespace DecalRendering { enum { DecalRenderTargetMode_NumBits = 5 }; }
 
class FStaticMeshBatchRelevance
{
public:
 
    FStaticMeshBatchRelevance(
        const FStaticMeshBatch& StaticMesh, 
        float InScreenSize, 
        bool InbSupportsCachingMeshDrawCommands, 
        bool InbUseSkyMaterial, 
        bool bInUseSingleLayerWaterMaterial, 
        bool bInUseAnisotropy, 
        bool bInSupportsNaniteRendering, 
        bool bInSupportsGPUScene, 
        bool bInUseForWaterInfoTextureDepth, 
        bool bInUseForLumenSceneCapture, 
        uint8 InDecalRenderTargetModeMask,
        ERHIFeatureLevel::Type FeatureLevel);
 
    int8 GetLODIndex() const { return bInvalidLODIndex ? -1 : int8(UnsignedLODIndex); }
 
    FMeshPassMask CommandInfosMask;
 
    int32 Id;
 
    float ScreenSize;
 
    uint16 NumElements;
 
    /* Every bit corresponds to one MeshPass. If bit is set, then FPrimitiveSceneInfo::CachedMeshDrawCommandInfos contains this mesh pass. */
    uint16 CommandInfosBase;
 
private:
 
    uint8 UnsignedLODIndex : 4;
 
    uint8 bInvalidLODIndex : 1;
 
public:
 
    UE_DEPRECATED(5.4, "Public LODIndex member is deprecated and doesn't contain valid data anymore! Use GetLODIndex() function instead.")
    int8 LODIndex : 1;
 
    uint8 bDitheredLODTransition : 1;
 
    uint8 bSelectable : 1;
 
    uint8 CastShadow : 1; // Whether it can be used in shadow renderpasses.
    uint8 bUseForMaterial : 1; // Whether it can be used in renderpasses requiring material outputs.
    uint8 bUseForDepthPass : 1; // Whether it can be used in depth pass.
    uint8 bUseAsOccluder : 1; // User hint whether it's a good occluder.
    uint8 bUseSkyMaterial : 1; // Whether this batch uses a Sky material or not.
    uint8 bUseSingleLayerWaterMaterial : 1; // Whether this batch uses a water material or not.
    uint8 bUseHairStrands : 1; // Whether it contains hair strands geometry.
    uint8 bUseAnisotropy : 1; // Whether material uses anisotropy parameter.
    uint8 bOverlayMaterial : 1; // Whether mesh uses overlay material.
 
    uint8 bRenderToVirtualTexture : 1;
    uint8 RuntimeVirtualTextureMaterialType : RuntimeVirtualTexture::MaterialType_NumBits;
 
    uint8 bSupportsCachingMeshDrawCommands : 1;
 
    uint8 bSupportsNaniteRendering : 1;
 
    uint8 bSupportsGPUScene : 1;
 
    uint8 bUseForWaterInfoTextureDepth : 1;
 
    uint8 bUseForLumenSceneCapture : 1;
 
    uint8 DecalRenderTargetModeMask : DecalRendering::DecalRenderTargetMode_NumBits;
 
    int32 GetStaticMeshCommandInfoIndex(EMeshPass::Type MeshPass) const;
};