celeritas::optical::ReflectionFormCalculator Class Reference

Calculator for UNIFIED reflection model. More...

#include <ReflectionFormCalculator.hh>

Public Member Functions
CELER_FUNCTION	ReflectionFormCalculator (Real3 const &direction, Real3 const &polarization, Real3 const &global_normal, Real3 const &facet_normal)
	Construct calculator from photon and surface data.
CELER_FUNCTION	ReflectionFormCalculator (Real3 const &inc_direction, ParticleTrackView const &photon, SurfacePhysicsTrackView const &surface_physics)
	Construct calculator from a given track's views.
CELER_FUNCTION SurfaceInteraction	calc_specular_spike () const
	Calculate specular spike reflection.
CELER_FUNCTION SurfaceInteraction	calc_specular_lobe () const
	Calculate specular lobe reflection.
CELER_FUNCTION SurfaceInteraction	calc_backscatter () const
	Calculate back-scattering reflection.
template<class Engine >
CELER_FUNCTION SurfaceInteraction	sample_lambertian_reflection (Engine &rng) const
	Sample diffuse Lambertian reflection.

Detailed Description

Calculator for UNIFIED reflection model.

The model specifies 4 different reflection modes:

1. Specular spike: geometric reflection about global normal
2. Specular lobe: geometric reflection about facet normal
3. Back-scattering: reversed photon direction and polarization
4. Diffuse Lambertian: reflection following Lambert's cosine law

Member Function Documentation

calc_backscatter()

CELER_FUNCTION SurfaceInteraction celeritas::optical::ReflectionFormCalculator::calc_backscatter ( ) const

inline

Calculate back-scattering reflection.

The photon direction and polarization are reversed.

calc_specular_lobe()

CELER_FUNCTION SurfaceInteraction celeritas::optical::ReflectionFormCalculator::calc_specular_lobe ( ) const

inline

Calculate specular lobe reflection.

This is geometric reflection about the facet normal.

calc_specular_spike()

CELER_FUNCTION SurfaceInteraction celeritas::optical::ReflectionFormCalculator::calc_specular_spike ( ) const

inline

Calculate specular spike reflection.

This is geometric reflection about the global normal.

sample_lambertian_reflection()

template<class Engine >

CELER_FUNCTION SurfaceInteraction celeritas::optical::ReflectionFormCalculator::sample_lambertian_reflection ( Engine &  rng ) const

inline

Sample diffuse Lambertian reflection.

Ideal diffuse reflection following Lambert's cosine law.

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The documentation for this class was generated from the following file:

• ReflectionFormCalculator.hh