PartialRayEnergyEstimator.h

Go to the documentation of this file.

#pragma once
 
#include "Core/Estimator/IRayEnergyEstimator.h"
 
#include <cstddef>
#include <iostream>
 
namespace ph
{
 
class PartialRayEnergyEstimator : public IRayEnergyEstimator
{
public:
    void update(const Integrand& integrand) override = 0;
 
    void estimate(
        const Ray&        ray,
        const Integrand&  integrand,
        SampleFlow&       sampleFlow,
        EnergyEstimation& out_estimation) const override = 0;
 
    void mapAttributeToEstimation(
        std::size_t attributeId,
        std::size_t estimationIndex) override;
 
    void setEstimationIndex(std::size_t index);
 
    std::string toString() const override;
 
protected:
    std::size_t m_estimationIndex;
};
 
// In-header Implementations:
 
inline void PartialRayEnergyEstimator::mapAttributeToEstimation(
    const std::size_t attributeId,
    const std::size_t estimationIndex)
{
    if(attributeId == 0)
    {
        setEstimationIndex(estimationIndex);
    }
    else
    {
        std::cerr <<
            "warning: at PartialRayEnergyEstimator::mapAttributeToEstimation(), "
            "attempting to set estimation index for non-existent attribute ID " << attributeId << std::endl;
    }
}
 
inline void PartialRayEnergyEstimator::setEstimationIndex(const std::size_t index)
{
    m_estimationIndex = index;
}
 
inline std::string PartialRayEnergyEstimator::toString() const
{
    return "Partial Ray Energy Estimator";
}
 
}// end namespace ph