Detailed description

Implements a Lambertian edf.

Inheritance diagram for cugar::LambertEdf:

Public Methods
CUGAR_FORCEINLINE CUGAR_HOST_DEVICE	LambertEdf (const Vector3f _color)

CUGAR_FORCEINLINE CUGAR_HOST_DEVICE Vector3f	f (const DifferentialGeometry &geometry, const Vector3f in, const Vector3f out) const

CUGAR_FORCEINLINE CUGAR_HOST_DEVICE Vector3f	f_over_p (const DifferentialGeometry &geometry, const Vector3f in, const Vector3f out) const

CUGAR_FORCEINLINE CUGAR_HOST_DEVICE float	p (const DifferentialGeometry &geometry, const Vector3f in, const Vector3f out, const SphericalMeasure measure=kProjectedSolidAngle) const

CUGAR_FORCEINLINE CUGAR_HOST_DEVICE void	sample (const Vector2f u, const DifferentialGeometry &geometry, const Vector3f in, Vector3f &out, Vector3f &g, float &p, float &p_proj) const

template<typename RandomGeneratorT >
CUGAR_FORCEINLINE CUGAR_HOST_DEVICE bool	invert (const DifferentialGeometry &geometry, const Vector3f V, const Vector3f L, RandomGeneratorT &random, Vector3f &z, float &p, float &p_proj) const

CUGAR_FORCEINLINE CUGAR_HOST_DEVICE void	inverse_pdf (const DifferentialGeometry &geometry, const Vector3f V, const Vector3f L, const Vector3f u, float &p, float &p_proj) const

Member Function Documentation

CUGAR_FORCEINLINE CUGAR_HOST_DEVICE Vector3f cugar::LambertEdf::f	(	const DifferentialGeometry &	geometry,
		const Vector3f	in,
		const Vector3f	out
	)		const

inline

evaluate the EDF f(in,out)

CUGAR_FORCEINLINE CUGAR_HOST_DEVICE Vector3f cugar::LambertEdf::f_over_p	(	const DifferentialGeometry &	geometry,
		const Vector3f	in,
		const Vector3f	out
	)		const

inline

evaluate the EDF/pdf ratio f(in,out)/p(in,out) wrt projected solid angle

CUGAR_FORCEINLINE CUGAR_HOST_DEVICE void cugar::LambertEdf::inverse_pdf	(	const DifferentialGeometry &	geometry,
		const Vector3f	V,
		const Vector3f	L,
		const Vector3f	u,
		float &	p,
		float &	p_proj
	)		const

inline

given V and L and u, compute the probability of sampling u by inversion of V and L

template<typename RandomGeneratorT >

CUGAR_FORCEINLINE CUGAR_HOST_DEVICE bool cugar::LambertEdf::invert	(	const DifferentialGeometry &	geometry,
		const Vector3f	V,
		const Vector3f	L,
		RandomGeneratorT &	random,
		Vector3f &	z,
		float &	p,
		float &	p_proj
	)		const

inline

given V and L, invert the sampling functions used to generate L from V

CUGAR_FORCEINLINE CUGAR_HOST_DEVICE float cugar::LambertEdf::p	(	const DifferentialGeometry &	geometry,
		const Vector3f	in,
		const Vector3f	out,
		const SphericalMeasure	measure = `kProjectedSolidAngle`
	)		const

inline

evaluate the pdf of sampling L given V, p(L|V) = p(V,L)

CUGAR_FORCEINLINE CUGAR_HOST_DEVICE void cugar::LambertEdf::sample	(	const Vector2f	u,
		const DifferentialGeometry &	geometry,
		const Vector3f	in,
		Vector3f &	out,
		Vector3f &	g,
		float &	p,
		float &	p_proj
	)		const

inline

sample out given in and return both the pdf p and the value g = f/p, wrt projected solid angle

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

C:/p4research/research/jpantaleoni/Fermat-Public/contrib/cugar/bsdf/lambert_edf.h