lux::FresnelBlend Class Reference

#include <fresnelblend.h>

Inheritance diagram for lux::FresnelBlend:

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Collaboration diagram for lux::FresnelBlend:

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List of all members.

Public Member Functions
	FresnelBlend (const SWCSpectrum &Rd, const SWCSpectrum &Rs, const SWCSpectrum &Alpha, float d, MicrofacetDistribution *dist)
virtual	~FresnelBlend ()
virtual void	f (const TsPack *tspack, const Vector &wo, const Vector &wi, SWCSpectrum *const f) const
SWCSpectrum	SchlickFresnel (float costheta) const
virtual bool	Sample_f (const TsPack *tspack, const Vector &wo, Vector *wi, float u1, float u2, SWCSpectrum *const f, float *pdf, float *pdfBack=NULL, bool reverse=false) const
virtual float	Pdf (const TsPack *tspack, const Vector &wi, const Vector &wo) const
Private Attributes
SWCSpectrum	Rd
SWCSpectrum	Rs
SWCSpectrum	Alpha
float	depth
MicrofacetDistribution *	distribution

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Detailed Description

Definition at line 33 of file fresnelblend.h.

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Constructor & Destructor Documentation

FresnelBlend::FresnelBlend	(	const SWCSpectrum &	Rd,
		const SWCSpectrum &	Rs,
		const SWCSpectrum &	Alpha,
		float	d,
		MicrofacetDistribution *	dist
	)

Definition at line 31 of file fresnelblend.cpp.

References distribution.

virtual lux::FresnelBlend::~FresnelBlend

(

)

[inline, virtual]

Definition at line 42 of file fresnelblend.h.

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Member Function Documentation

void FresnelBlend::f	(	const TsPack *	tspack,
		const Vector &	wo,
		const Vector &	wi,
		SWCSpectrum *const	f
	)			const [virtual]

Evaluates the BxDF. Accumulates the result in the f parameter.

Implements lux::BxDF.

Definition at line 41 of file fresnelblend.cpp.

References lux::AbsDot(), lux::SWCSpectrum::AddWeighted(), Alpha, lux::CosTheta(), lux::MicrofacetDistribution::D(), depth, distribution, lux::Dot(), M_PI, cimg_library::cimg::max(), lux::Normalize(), Rd, Rs, and SchlickFresnel().

Referenced by Sample_f(), and SchlickFresnel().

float FresnelBlend::Pdf	(	const TsPack *	tspack,
		const Vector &	wi,
		const Vector &	wo
	)			const [virtual]

Reimplemented from lux::BxDF.

Definition at line 95 of file fresnelblend.cpp.

References distribution, INV_PI, lux::MicrofacetDistribution::Pdf(), lux::SameHemisphere(), and lux::Vector::z.

Referenced by Sample_f().

bool FresnelBlend::Sample_f	(	const TsPack *	tspack,
		const Vector &	wo,
		Vector *	wi,
		float	u1,
		float	u2,
		SWCSpectrum *const	f,
		float *	pdf,
		float *	pdfBack = NULL,
		bool	reverse = false
	)			const [virtual]

Samples the BxDF. Returns the result of the BxDF for the sampled direction in f.

Reimplemented from lux::BxDF.

Definition at line 65 of file fresnelblend.cpp.

References lux::CosineSampleHemisphere(), distribution, f(), Pdf(), lux::MicrofacetDistribution::Sample_f(), and lux::Vector::z.

SWCSpectrum lux::FresnelBlend::SchlickFresnel

(

float

costheta

)

const [inline]

Definition at line 44 of file fresnelblend.h.

References f().

Referenced by f().

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Member Data Documentation

SWCSpectrum lux::FresnelBlend::Alpha [private]

Definition at line 54 of file fresnelblend.h.

Referenced by f().

float lux::FresnelBlend::depth [private]

Definition at line 55 of file fresnelblend.h.

Referenced by f().

MicrofacetDistribution* lux::FresnelBlend::distribution [private]

Definition at line 56 of file fresnelblend.h.

Referenced by f(), FresnelBlend(), Pdf(), and Sample_f().

SWCSpectrum lux::FresnelBlend::Rd [private]

Definition at line 54 of file fresnelblend.h.

Referenced by f().

SWCSpectrum lux::FresnelBlend::Rs [private]

Definition at line 54 of file fresnelblend.h.

Referenced by f().

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

• fresnelblend.h
• fresnelblend.cpp