lux::PointLight Class Reference

#include <point.h>

Inheritance diagram for lux::PointLight:

Collaboration diagram for lux::PointLight:

Public Member Functions
	PointLight (const Transform &light2world, const boost::shared_ptr< Texture< SWCSpectrum > > L, float gain, SampleableSphericalFunction *ssf)
virtual	~PointLight ()
virtual bool	IsDeltaLight () const
virtual bool	IsEnvironmental () const
virtual SWCSpectrum	Power (const TsPack tspack, const Scene ) const
virtual SWCSpectrum	Sample_L (const TsPack tspack, const Point &P, float u1, float u2, float u3, Vector wo, float pdf, VisibilityTester visibility) const
virtual SWCSpectrum	Sample_L (const TsPack tspack, const Scene scene, float u1, float u2, float u3, float u4, Ray ray, float pdf) const
virtual float	Pdf (const Point &, const Vector &) const
virtual float	Pdf (const Point &p, const Normal &n, const Point &po, const Normal &ns) const
virtual bool	Sample_L (const TsPack tspack, const Scene scene, float u1, float u2, float u3, BSDF *bsdf, float pdf, SWCSpectrum *Le) const
virtual bool	Sample_L (const TsPack tspack, const Scene scene, const Point &p, const Normal &n, float u1, float u2, float u3, BSDF *bsdf, float pdf, float pdfDirect, VisibilityTester visibility, SWCSpectrum *Le) const
virtual SWCSpectrum	Le (const TsPack tspack, const Scene scene, const Ray &r, const Normal &n, BSDF *bsdf, float pdf, float *pdfDirect) const
Static Public Member Functions
static Light *	CreateLight (const Transform &light2world, const ParamSet &paramSet, const TextureParams &tp)
Private Member Functions
SWCSpectrum	L (const TsPack *tspack, const Vector &w) const
Private Attributes
Point	lightPos
bool	flipZ
boost::shared_ptr< Texture < SWCSpectrum > >	Lbase
DifferentialGeometry	dummydg
float	gain
SampleableSphericalFunction *	func

Detailed Description

Definition at line 35 of file lights/point.h.

Constructor & Destructor Documentation

PointLight::PointLight	(	const Transform &	light2world,
		const boost::shared_ptr< Texture< SWCSpectrum > >	L,
		float	gain,
		SampleableSphericalFunction *	ssf
	)

Definition at line 51 of file point.cpp.

References func, gain, L(), Lbase, lightPos, and lux::Light::LightToWorld.

Referenced by CreateLight().

PointLight::~PointLight ( ) [virtual]

Definition at line 63 of file point.cpp.

References func.

Member Function Documentation

Light * PointLight::CreateLight	(	const Transform &	light2world,
		const ParamSet &	paramSet,
		const TextureParams &	tp
	)			`[static]`

Definition at line 157 of file point.cpp.

References lux::CreateSphericalFunction(), lux::ParamSet::FindOneFloat(), lux::ParamSet::FindOnePoint(), blender::g, lux::TextureParams::GetSWCSpectrumTexture(), L(), PointLight(), lux::Translate(), lux::Point::x, lux::Point::y, and lux::Point::z.

virtual bool lux::PointLight::IsDeltaLight ( ) const [inline, virtual]

Implements lux::Light.

Definition at line 42 of file lights/point.h.

virtual bool lux::PointLight::IsEnvironmental ( ) const [inline, virtual]

Implements lux::Light.

Definition at line 43 of file lights/point.h.

SWCSpectrum PointLight::L	(	const TsPack *	tspack,
		const Vector &	w
	)			const `[private]`

Return the emmitted radiance in the given diretion.

Parameters:

	tspack	The thread specific pack.
	w	The normalized direction in LOCAL coordinates.

Returns:: The emmitted radiance.

Definition at line 101 of file point.cpp.

References dummydg, lux::SampleableSphericalFunction::f(), func, gain, and Lbase.

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

SWCSpectrum PointLight::Le	(	const TsPack *	tspack,
		const Scene *	scene,
		const Ray &	r,
		const Normal &	n,
		BSDF **	bsdf,
		float *	pdf,
		float *	pdfDirect
	)			const `[virtual]`

Reimplemented from lux::Light.

Definition at line 152 of file point.cpp.

float PointLight::Pdf	(	const Point &	p,
		const Normal &	n,
		const Point &	po,
		const Normal &	ns
	)			const `[virtual]`

Implements lux::Light.

Definition at line 96 of file point.cpp.

References lux::AbsDot(), lux::DistanceSquared(), and lux::Normalize().

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

Implements lux::Light.

Definition at line 93 of file point.cpp.

SWCSpectrum PointLight::Power	(	const TsPack *	tspack,
		const Scene *
	)			const `[virtual]`

Implements lux::Light.

Definition at line 67 of file point.cpp.

References lux::SampleableSphericalFunction::Average_f(), dummydg, func, gain, Lbase, and M_PI.

bool PointLight::Sample_L	(	const TsPack *	tspack,
		const Scene *	scene,
		const Point &	p,
		const Normal &	n,
		float	u1,
		float	u2,
		float	u3,
		BSDF **	bsdf,
		float *	pdf,
		float *	pdfDirect,
		VisibilityTester *	visibility,
		SWCSpectrum *	Le
	)			const `[virtual]`

Reimplemented from lux::Light.

Definition at line 128 of file point.cpp.

References BSDF_ALLOC, lux::CoordinateSystem(), dummydg, func, gain, Lbase, lightPos, lux::Normalize(), lux::SampleableSphericalFunction::Pdf(), lux::VisibilityTester::SetSegment(), lux::TsPack::time, lux::UniformSpherePdf(), and lux::Light::WorldToLight.

bool PointLight::Sample_L	(	const TsPack *	tspack,
		const Scene *	scene,
		float	u1,
		float	u2,
		float	u3,
		BSDF **	bsdf,
		float *	pdf,
		SWCSpectrum *	Le
	)			const `[virtual]`

Reimplemented from lux::Light.

Definition at line 104 of file point.cpp.

References BSDF_ALLOC, lux::CoordinateSystem(), dummydg, func, gain, Lbase, lightPos, lux::Light::LightToWorld, lux::SampleableSphericalFunction::Sample_f(), lux::UniformSampleSphere(), lux::UniformSpherePdf(), and lux::Light::WorldToLight.

SWCSpectrum PointLight::Sample_L	(	const TsPack *	tspack,
		const Scene *	scene,
		float	u1,
		float	u2,
		float	u3,
		float	u4,
		Ray *	ray,
		float *	pdf
	)			const `[virtual]`

Implements lux::Light.

Definition at line 78 of file point.cpp.

References lux::Ray::d, dummydg, func, gain, Lbase, lightPos, lux::Light::LightToWorld, lux::Ray::o, lux::SampleableSphericalFunction::Sample_f(), lux::UniformSampleSphere(), and lux::UniformSpherePdf().

SWCSpectrum PointLight::Sample_L	(	const TsPack *	tspack,
		const Point &	P,
		float	u1,
		float	u2,
		float	u3,
		Vector *	wo,
		float *	pdf,
		VisibilityTester *	visibility
	)			const `[virtual]`