config.h

//
// Copyright 2017 Pixar
//
// Licensed under the terms set forth in the LICENSE.txt file available at
// https://openusd.org/license.
//
#ifndef PXR_IMAGING_PLUGIN_HD_EMBREE_CONFIG_H
#define PXR_IMAGING_PLUGIN_HD_EMBREE_CONFIG_H
 
#include "pxr/pxr.h"
#include "pxr/base/tf/singleton.h"
 
PXR_NAMESPACE_OPEN_SCOPE
 
// NOTE: types here restricted to bool/int/string, as also used for
// TF_DEFINE_ENV_SETTING
constexpr int HdEmbreeDefaultSamplesToConvergence = 100;
constexpr int HdEmbreeDefaultTileSize = 8;
constexpr int HdEmbreeDefaultAmbientOcclusionSamples = 16;
constexpr bool HdEmbreeDefaultJitterCamera = true;
constexpr bool HdEmbreeDefaultUseFaceColors = true;
constexpr int HdEmbreeDefaultCameraLightIntensity = 300;
constexpr int HdEmbreeDefaultRandomNumberSeed = -1;
constexpr bool HdEmbreeDefaultUseLighting = false;
 
class HdEmbreeConfig {
public:
 
    static const HdEmbreeConfig &GetInstance();
 
    unsigned int samplesToConvergence = HdEmbreeDefaultSamplesToConvergence;
 
    unsigned int tileSize = HdEmbreeDefaultTileSize;
 
    unsigned int ambientOcclusionSamples = HdEmbreeDefaultAmbientOcclusionSamples;
 
    bool jitterCamera = HdEmbreeDefaultJitterCamera;
 
    bool useFaceColors = HdEmbreeDefaultUseFaceColors;
 
    float cameraLightIntensity = HdEmbreeDefaultCameraLightIntensity;
 
    int randomNumberSeed = HdEmbreeDefaultRandomNumberSeed;
 
    bool useLighting = HdEmbreeDefaultUseLighting;
 
private:
    // The constructor initializes the config variables with their
    // default or environment-provided override, and optionally prints
    // them.
    HdEmbreeConfig();
    ~HdEmbreeConfig() = default;
 
    HdEmbreeConfig(const HdEmbreeConfig&) = delete;
    HdEmbreeConfig& operator=(const HdEmbreeConfig&) = delete;
 
    friend class TfSingleton<HdEmbreeConfig>;
};
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif // PXR_IMAGING_PLUGIN_HD_EMBREE_CONFIG_H