GenOptions.h

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//
// Copyright Contributors to the MaterialX Project
// SPDX-License-Identifier: Apache-2.0
//
 
#ifndef MATERIALX_GENOPTIONS_H
#define MATERIALX_GENOPTIONS_H

 
#include <MaterialXGenShader/Export.h>
 
#include <MaterialXFormat/File.h>
 
MATERIALX_NAMESPACE_BEGIN

enum ShaderInterfaceType
{
    SHADER_INTERFACE_COMPLETE,

    SHADER_INTERFACE_REDUCED
};

enum HwSpecularEnvironmentMethod
{
    SPECULAR_ENVIRONMENT_NONE,

    SPECULAR_ENVIRONMENT_FIS,

    SPECULAR_ENVIRONMENT_PREFILTER
};

enum HwDirectionalAlbedoMethod
{
    DIRECTIONAL_ALBEDO_ANALYTIC,

    DIRECTIONAL_ALBEDO_TABLE,

    DIRECTIONAL_ALBEDO_MONTE_CARLO
};

enum HwTransmissionRenderMethod
{
    TRANSMISSION_REFRACTION,

    TRANSMISSION_OPACITY,
};

class MX_GENSHADER_API GenOptions
{
  public:
    GenOptions() :
        shaderInterfaceType(SHADER_INTERFACE_COMPLETE),
        fileTextureVerticalFlip(false),
        addUpstreamDependencies(true),
        libraryPrefix("libraries"),
        emitColorTransforms(true),
        hwTransparency(false),
        hwSpecularEnvironmentMethod(SPECULAR_ENVIRONMENT_FIS),
        hwDirectionalAlbedoMethod(DIRECTIONAL_ALBEDO_ANALYTIC),
        hwTransmissionRenderMethod(TRANSMISSION_REFRACTION),
        hwSrgbEncodeOutput(false),
        hwWriteDepthMoments(false),
        hwShadowMap(false),
        hwAmbientOcclusion(false),
        hwMaxActiveLightSources(3),
        hwNormalizeUdimTexCoords(false),
        hwWriteAlbedoTable(false),
        hwWriteEnvPrefilter(false),
        hwImplicitBitangents(true)
    {
    }
    virtual ~GenOptions() { }
 
    // TODO: Add options for:
    //  - shader gen optimization level
    //  - graph flattening or not

    ShaderInterfaceType shaderInterfaceType;

    bool fileTextureVerticalFlip;

    string targetColorSpaceOverride;

    string targetDistanceUnit;

    bool addUpstreamDependencies;

    FilePath libraryPrefix;

    bool emitColorTransforms;

    bool hwTransparency;

    HwSpecularEnvironmentMethod hwSpecularEnvironmentMethod;

    HwDirectionalAlbedoMethod hwDirectionalAlbedoMethod;

    HwTransmissionRenderMethod hwTransmissionRenderMethod;

    bool hwSrgbEncodeOutput;

    bool hwWriteDepthMoments;

    bool hwShadowMap;

    bool hwAmbientOcclusion;

    unsigned int hwMaxActiveLightSources;

    bool hwNormalizeUdimTexCoords;

    bool hwWriteAlbedoTable;

    bool hwWriteEnvPrefilter;

    bool hwImplicitBitangents;
};
 
MATERIALX_NAMESPACE_END
 
#endif