PointLight Class Reference

#include <point.h>

Inheritance diagram for PointLight:

List of all members.

Public Member Functions
	PointLight (const Transform &light2world, const Spectrum &intensity)
Spectrum	Sample_L (const Point &p, float pEpsilon, const LightSample &ls, float time, Vector *wi, float *pdf, VisibilityTester *vis) const
Spectrum	Power (const Scene *) const
bool	IsDeltaLight () const
Spectrum	Sample_L (const Scene *scene, const LightSample &ls, float u1, float u2, float time, Ray *ray, Normal *Ns, float *pdf) const
float	Pdf (const Point &, const Vector &) const
void	SHProject (const Point &p, float pEpsilon, int lmax, const Scene *scene, bool computeLightVisibility, float time, RNG &rng, Spectrum *coeffs) const
Private Attributes
Point	lightPos
Spectrum	Intensity

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Detailed Description

Definition at line 37 of file point.h.

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Constructor & Destructor Documentation

PointLight::PointLight	(	const Transform &	light2world,
		const Spectrum &	intensity
	)

Definition at line 34 of file point.cpp.

References Intensity, lightPos, and Light::LightToWorld.

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Member Function Documentation

bool PointLight::IsDeltaLight

(

)

const [inline, virtual]

Implements Light.

Definition at line 44 of file point.h.

float PointLight::Pdf	(	const Point &	,
		const Vector &
	)			const [virtual]

Implements Light.

Definition at line 67 of file point.cpp.

Spectrum PointLight::Power

(

const Scene *

)

const [virtual]

Implements Light.

Definition at line 52 of file point.cpp.

References Intensity, and M_PI.

Spectrum PointLight::Sample_L	(	const Scene *	scene,
		const LightSample &	ls,
		float	u1,
		float	u2,
		float	time,
		Ray *	ray,
		Normal *	Ns,
		float *	pdf
	)			const [virtual]

Implements Light.

Definition at line 72 of file point.cpp.

References Ray::d, INFINITY, Intensity, lightPos, UniformSampleSphere(), UniformSpherePdf(), and LightSample::uPos.

Spectrum PointLight::Sample_L	(	const Point &	p,
		float	pEpsilon,
		const LightSample &	ls,
		float	time,
		Vector *	wi,
		float *	pdf,
		VisibilityTester *	vis
	)			const [virtual]

Implements Light.

Definition at line 42 of file point.cpp.

References DistanceSquared(), Intensity, lightPos, Normalize(), and VisibilityTester::SetSegment().

void PointLight::SHProject	(	const Point &	p,
		float	pEpsilon,
		int	lmax,
		const Scene *	scene,
		bool	computeLightVisibility,
		float	time,
		RNG &	rng,
		Spectrum *	coeffs
	)			const [virtual]

Reimplemented from Light.

Definition at line 83 of file point.cpp.

References ALLOCA, Distance(), DistanceSquared(), Intensity, Scene::IntersectP(), lightPos, Normalize(), SHEvaluate(), and SHTerms().

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Member Data Documentation

Spectrum PointLight::Intensity [private]

Definition at line 53 of file point.h.

Referenced by PointLight(), Power(), Sample_L(), and SHProject().

Point PointLight::lightPos [private]

Definition at line 52 of file point.h.

Referenced by PointLight(), Sample_L(), and SHProject().

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

• point.h
• point.cpp