ph::SchlickApproxDielectricFresnel Class Reference

Dielectric-dielectric interface Fresnel effect. More...

#include <SchlickApproxDielectricFresnel.h>

Inheritance diagram for ph::SchlickApproxDielectricFresnel:

Public Member Functions
	SchlickApproxDielectricFresnel (real iorOuter, real iorInner)
math::Spectrum	calcReflectance (real cosThetaIncident) const override
Public Member Functions inherited from ph::DielectricFresnel
	DielectricFresnel (real iorOuter, real iorInner)
std::optional< math::Vector3R >	calcRefractDir (const math::Vector3R &I, const math::Vector3R &N) const
	Calculates the normalized refraction direction.
std::optional< real >	calcRefractCos (const math::Vector3R &I, const math::Vector3R &N) const
	Calculates the cosine (signed) of refraction direction. This method is similar to calcRefractDir(), but is slightly more efficient as it returns the cosine of refraction direction only.
real	getIorOuter () const
real	getIorInner () const
Public Member Functions inherited from ph::FresnelEffect
virtual	~FresnelEffect ()=default
math::Spectrum	calcTransmittance (real cosThetaIncident) const

Additional Inherited Members
Protected Attributes inherited from ph::DielectricFresnel
real	m_iorOuter
real	m_iorInner

Detailed Description

Dielectric-dielectric interface Fresnel effect.

The formulae used are dielectric-specific approximations made by Brent Burley [3], which provide some improvement over the approximation originally done by Schlick [14]. See the implementation of calcReflectance() for more details.

Constructor & Destructor Documentation

SchlickApproxDielectricFresnel()

ph::SchlickApproxDielectricFresnel::SchlickApproxDielectricFresnel	(	real	iorOuter,
		real	iorInner )

Member Function Documentation

calcReflectance()

math::Spectrum ph::SchlickApproxDielectricFresnel::calcReflectance ( real cosThetaIncident ) const

overridevirtual

Parameters

cosThetaIncident

Cosine of the incident angle.

Returns

The reflectance of the interface on the specified angle.

Note

cosThetaIncident is signed, so inner and outer sides can be determined.

Implements ph::DielectricFresnel.

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

• Source/Core/SurfaceBehavior/Property/SchlickApproxDielectricFresnel.h
• Source/Core/SurfaceBehavior/Property/SchlickApproxDielectricFresnel.cpp