pxrIES.h

//
// Copyright 2024 Pixar
//
// Licensed under the terms set forth in the LICENSE.txt file available at
// https://openusd.org/license.
//
#ifndef PXR_IMAGING_PLUGIN_HD_EMBREE_PXRIES_PXRIES_H
#define PXR_IMAGING_PLUGIN_HD_EMBREE_PXRIES_PXRIES_H
 
#include "pxr/pxr.h"
#include "pxr/imaging/plugin/hdEmbree/pxrIES/ies.h"
 
#include <string>
 
PXR_NAMESPACE_OPEN_SCOPE
 
class PxrIESFile : public pxr_ccl::IESFile {
private:
    using Base = pxr_ccl::IESFile;
 
public:
 
    bool load(std::string const& ies);  // non-virtual "override"
    void clear();  // non-virtual "override"
 
    inline float power() const
    {
        return _power;
    }
 
    // returns true if the IES files was successfully loaded and processed and
    // is ready to evaluate
    bool valid() const
    {
        return !intensity.empty();
    }
 
    // evaluate the IES file for the given spherical coordinates
    float eval(float theta, float phi, float angleScale) const;
 
protected:
    // Extra processing we do on-top of the "standard" process() from IESFile
    void pxr_extra_process();
 
private:
 
    float _power = 0;
};
 
PXR_NAMESPACE_CLOSE_SCOPE
 
#endif // PXR_IMAGING_PLUGIN_HD_EMBREE_PXRIES_PXRIES_H