83 lines
3.1 KiB
C++
83 lines
3.1 KiB
C++
// Copyright Epic Games, Inc. All Rights Reserved.
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#include "Material.h"
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#include "Importer.h"
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namespace Lightmass
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{
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// The logic of these function needs to match SubstrateMaterial.cpp
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bool IsOpaqueOrMaskedBlendMode(EBlendMode BlendMode) { return BlendMode == BLEND_Opaque || BlendMode == BLEND_Masked; }
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bool IsTranslucentOnlyBlendMode(EBlendMode BlendMode) { return BlendMode == BLEND_Translucent || BlendMode == BLEND_TranslucentColoredTransmittance || BlendMode == BLEND_TranslucentGreyTransmittance; }
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bool IsAlphaHoldoutBlendMode(EBlendMode BlendMode) { return BlendMode == BLEND_AlphaHoldout; }
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bool IsModulateBlendMode(EBlendMode BlendMode) { return BlendMode == BLEND_Modulate || BlendMode == BLEND_ColoredTransmittanceOnly; }
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bool IsAdditiveBlendMode(EBlendMode BlendMode) { return BlendMode == BLEND_Additive; }
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bool IsAlphaCompositeBlendMode(EBlendMode BlendMode) { return BlendMode == BLEND_AlphaComposite; }
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//----------------------------------------------------------------------------
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// Material base class
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//----------------------------------------------------------------------------
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void FBaseMaterial::Import( class FLightmassImporter& Importer )
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{
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verify(Importer.ImportData((FBaseMaterialData*)this));
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}
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//----------------------------------------------------------------------------
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// Material class
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//----------------------------------------------------------------------------
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void FMaterial::Import( class FLightmassImporter& Importer )
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{
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// import super class
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FBaseMaterial::Import(Importer);
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// import the shared data structure
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verify(Importer.ImportData((FMaterialData*)this));
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// import the actual material samples...
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int32 ReadSize;
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// Emissive
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ReadSize = EmissiveSize * EmissiveSize;
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checkf(ReadSize > 0, TEXT("Failed to import emissive data!"));
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MaterialEmissive.Init(TF_ARGB16F, EmissiveSize, EmissiveSize);
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verify(Importer.Read(MaterialEmissive.GetData(), ReadSize * sizeof(FFloat16Color)));
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// Diffuse
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ReadSize = DiffuseSize * DiffuseSize;
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if (ReadSize > 0)
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{
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MaterialDiffuse.Init(TF_ARGB16F, DiffuseSize, DiffuseSize);
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verify(Importer.Read(MaterialDiffuse.GetData(), ReadSize * sizeof(FFloat16Color)));
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}
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else
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{
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// Opaque materials should always import diffuse
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check(!IsOpaqueOrMaskedBlendMode(BlendMode));
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}
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// Transmission
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ReadSize = TransmissionSize * TransmissionSize;
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if (ReadSize > 0)
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{
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MaterialTransmission.Init(TF_ARGB16F, TransmissionSize, TransmissionSize);
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verify(Importer.Read(MaterialTransmission.GetData(), ReadSize * sizeof(FFloat16Color)));
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}
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else
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{
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// Materials with a translucent blend mode should always import transmission
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check(!IsTranslucentOnlyBlendMode(BlendMode) && !IsAdditiveBlendMode(BlendMode) && !IsModulateBlendMode(BlendMode) && !IsAlphaCompositeBlendMode(BlendMode) && !IsAlphaHoldoutBlendMode(BlendMode))
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}
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// Normal
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ReadSize = NormalSize * NormalSize;
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if( ReadSize > 0 )
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{
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MaterialNormal.Init(TF_ARGB16F, NormalSize, NormalSize);
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verify(Importer.Read(MaterialNormal.GetData(), ReadSize * sizeof(FFloat16Color)));
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}
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}
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} // namespace Lightmass
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