BsdfQueryContext.h

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#pragma once
 
#include "Core/SurfaceBehavior/surface_optics_fwd.h"
#include "Core/LTA/SidednessAgreement.h"
#include "Core/LTA/enums.h"
 
namespace ph
{
 
class BsdfQueryContext final
{
    // TODO: make this able to init query for multiple elementals or 
    // based on surface phenomenon (which can produce a phenomenon/bsdfQuery iterator for surface optics to consume)
public:
    SurfaceElemental        elemental = ALL_SURFACE_ELEMENTALS;
    lta::ETransport         transport = lta::ETransport::Radiance;
    lta::SidednessAgreement sidedness = lta::SidednessAgreement{lta::ESidednessPolicy::Strict};
 
    BsdfQueryContext() = default;
    explicit BsdfQueryContext(SurfaceElemental elemental);
    explicit BsdfQueryContext(lta::ESidednessPolicy sidednessPolicy);
 
    BsdfQueryContext(
        SurfaceElemental      elemental, 
        lta::ETransport       transport, 
        lta::ESidednessPolicy sidednessPolicy = lta::ESidednessPolicy::Strict);
};
 
// In-header Implementations:
 
inline BsdfQueryContext::BsdfQueryContext(SurfaceElemental elemental)
    : BsdfQueryContext()
{
    this->elemental = elemental;
}
 
inline BsdfQueryContext::BsdfQueryContext(lta::ESidednessPolicy sidednessPolicy)
    : BsdfQueryContext()
{
    sidedness = lta::SidednessAgreement(sidednessPolicy);
}
 
inline BsdfQueryContext::BsdfQueryContext(
    const SurfaceElemental      elemental,
    const lta::ETransport       transport,
    const lta::ESidednessPolicy sidednessPolicy)
 
    : elemental(elemental)
    , transport(transport)
    , sidedness(sidednessPolicy)
{}
 
}// end namespace ph