SubstrateMaterial.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreMinimal.h"
#include "Containers/Map.h"
#include "MaterialCompiler.h"
#include "SubstrateDefinitions.h"
 
class FMaterialCompiler;
 
FString GetSubstrateBSDFName(uint8 BSDFType);
 
FSubstrateRegisteredSharedLocalBasis SubstrateCompilationInfoCreateNullSharedLocalBasis();
FSubstrateRegisteredSharedLocalBasis SubstrateCompilationInfoCreateSharedLocalBasis(FMaterialCompiler* Compiler, int32 NormalCodeChunk, int32 TangentCodeChunk = INDEX_NONE);
 
struct FSubstrateMaterialComplexity
{
    bool bIsComplexSpecial;
    bool bIsSingle;
    bool bIsSimple;
    // If all the above are false, complexity is Complex
 
    void Reset()
    {
        bIsComplexSpecial = false;
        bIsSingle = false;
        bIsSimple = false;
    }
 
    uint8 SubstrateMaterialType() const
    {
        return bIsSimple ? SUBSTRATE_MATERIAL_TYPE_SIMPLE : (bIsSingle ? SUBSTRATE_MATERIAL_TYPE_SINGLE : (bIsComplexSpecial ? SUBSTRATE_MATERIAL_TYPE_COMPLEX_SPECIAL : SUBSTRATE_MATERIAL_TYPE_COMPLEX));
    }
 
    bool IsSimple() const           { return SubstrateMaterialType() == SUBSTRATE_MATERIAL_TYPE_SIMPLE; }
    bool IsSingle() const           { return SubstrateMaterialType() == SUBSTRATE_MATERIAL_TYPE_SINGLE; }
    bool IsComplex() const          { return SubstrateMaterialType() == SUBSTRATE_MATERIAL_TYPE_COMPLEX; }
    bool IsComplexSpecial() const   { return SubstrateMaterialType() == SUBSTRATE_MATERIAL_TYPE_COMPLEX_SPECIAL; }
 
    static FString ToString(uint8 InMaterialType, bool bUpperCase = false)
    {
        switch (InMaterialType)
        {
            case SUBSTRATE_MATERIAL_TYPE_SIMPLE:            return bUpperCase ? TEXT("SIMPLE")          : TEXT("Simple");
            case SUBSTRATE_MATERIAL_TYPE_SINGLE:            return bUpperCase ? TEXT("SINGLE")          : TEXT("Single");
            case SUBSTRATE_MATERIAL_TYPE_COMPLEX:           return bUpperCase ? TEXT("COMPLEX")         : TEXT("Complex");
            case SUBSTRATE_MATERIAL_TYPE_COMPLEX_SPECIAL:   return bUpperCase ? TEXT("COMPLEX SPECIAL") : TEXT("Complex Special");
            default:                                        return bUpperCase ? TEXT("UNKOWN")          : TEXT("Unknown");
        }
    }
};