lux::Light Class Reference

#include <light.h>

Inheritance diagram for lux::Light:
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Collaboration diagram for lux::Light:
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List of all members.

Public Member Functions

virtual ~Light ()
 Light (const Transform &l2w, int ns=1)
virtual SWCSpectrum Power (const TsPack *tspack, const Scene *) const =0
virtual bool IsDeltaLight () const =0
virtual bool IsEnvironmental () const =0
virtual SWCSpectrum Le (const TsPack *tspack, const RayDifferential &r) const
virtual SWCSpectrum Le (const TsPack *tspack, const Scene *scene, const Ray &r, const Normal &n, BSDF **bsdf, float *pdf, float *pdfDirect) const
virtual SWCSpectrum Sample_L (const TsPack *tspack, const Point &p, float u1, float u2, float u3, Vector *wi, float *pdf, VisibilityTester *vis) const =0
virtual float Pdf (const Point &p, const Vector &wi) const =0
virtual SWCSpectrum Sample_L (const TsPack *tspack, const Point &p, const Normal &n, float u1, float u2, float u3, Vector *wi, float *pdf, VisibilityTester *visibility) const
virtual float Pdf (const Point &p, const Normal &n, const Vector &wi) const
virtual float Pdf (const Point &p, const Normal &n, const Point &po, const Normal &ns) const =0
virtual SWCSpectrum Sample_L (const TsPack *tspack, const Scene *scene, float u1, float u2, float u3, float u4, Ray *ray, float *pdf) const =0
virtual bool Sample_L (const TsPack *tspack, const Scene *scene, float u1, float u2, float u3, BSDF **bsdf, float *pdf, SWCSpectrum *L) 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 *L) const
void AddPortalShape (boost::shared_ptr< Primitive > shape)

Public Attributes

const int nSamples
bool havePortalShape
int nrPortalShapes
vector< boost::shared_ptr
< Primitive > > 		PortalShapes
float PortalArea
int group

Protected Attributes

const Transform LightToWorld
const Transform WorldToLight
bool warnOnce

Detailed Description

Definition at line 37 of file light.h.

Constructor & Destructor Documentation

Light::~Light (  )  [virtual]

Definition at line 32 of file light.cpp.

lux::Light::Light ( const Transform &  l2w,
int  ns = 1 
) [inline]

Definition at line 41 of file light.h.

References lux::Transform::HasScale(), havePortalShape, LUX_UNIMPLEMENT, LUX_WARNING, luxError, nrPortalShapes, PortalArea, warnOnce, and WorldToLight.

Member Function Documentation

void Light::AddPortalShape ( boost::shared_ptr< Primitive >  shape  ) 

Definition at line 83 of file light.cpp.

References havePortalShape, nrPortalShapes, PortalArea, and PortalShapes.

Referenced by lux::Context::portalShape().

virtual bool lux::Light::IsDeltaLight (  )  const [pure virtual]

Implemented in lux::AreaLight, lux::DistantLight, lux::InfiniteAreaLight, lux::InfiniteAreaLightIS, lux::PointLight, lux::ProjectionLight, lux::SkyLight, lux::SpotLight, and lux::SunLight.

Referenced by getDirectLight(), and lux::BidirIntegrator::Li().

virtual bool lux::Light::IsEnvironmental (  )  const [pure virtual]

Implemented in lux::AreaLight, lux::DistantLight, lux::InfiniteAreaLight, lux::InfiniteAreaLightIS, lux::PointLight, lux::ProjectionLight, lux::SkyLight, lux::SpotLight, and lux::SunLight.

Referenced by getDirectLight(), getEnvironmentLight(), and lux::BidirIntegrator::Li().

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

Reimplemented in lux::InfiniteAreaLight, lux::PointLight, lux::SkyLight, lux::SpotLight, and lux::SunLight.

Definition at line 77 of file light.cpp.

SWCSpectrum Light::Le ( const TsPack *  tspack,
const RayDifferential &  r 
) const [virtual]

Reimplemented in lux::InfiniteAreaLight, lux::InfiniteAreaLightIS, lux::SkyLight, and lux::SunLight.

Definition at line 74 of file light.cpp.

Referenced by getEnvironmentLight().

virtual float lux::Light::Pdf ( const Point &  p,
const Normal &  n,
const Point &  po,
const Normal &  ns 
) const [pure virtual]

Implemented in lux::AreaLight, lux::DistantLight, lux::InfiniteAreaLight, lux::InfiniteAreaLightIS, lux::PointLight, lux::ProjectionLight, lux::SkyLight, lux::SpotLight, and lux::SunLight.

virtual float lux::Light::Pdf ( const Point &  p,
const Normal &  n,
const Vector &  wi 
) const [inline, virtual]

Reimplemented in lux::AreaLight, lux::InfiniteAreaLight, and lux::SkyLight.

Definition at line 67 of file light.h.

References Pdf().

virtual float lux::Light::Pdf ( const Point &  p,
const Vector &  wi 
) const [pure virtual]

Implemented in lux::AreaLight, lux::DistantLight, lux::InfiniteAreaLight, lux::InfiniteAreaLightIS, lux::PointLight, lux::ProjectionLight, lux::SkyLight, lux::SpotLight, and lux::SunLight.

Referenced by lux::BidirIntegrator::Li(), and Pdf().

virtual SWCSpectrum lux::Light::Power ( const TsPack *  tspack,
const Scene *   
) const [pure virtual]

Implemented in lux::AreaLight, lux::DistantLight, lux::InfiniteAreaLight, lux::InfiniteAreaLightIS, lux::PointLight, lux::ProjectionLight, lux::SkyLight, lux::SpotLight, and lux::SunLight.

virtual bool lux::Light::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 *  L 
) const [inline, virtual]

Reimplemented in lux::AreaLight, lux::InfiniteAreaLight, lux::PointLight, lux::SkyLight, lux::SpotLight, and lux::SunLight.

Definition at line 82 of file light.h.

References LUX_BUG, LUX_SEVERE, luxError, and warnOnce.

virtual bool lux::Light::Sample_L ( const TsPack *  tspack,
const Scene *  scene,
float  u1,
float  u2,
float  u3,
BSDF **  bsdf,
float *  pdf,
SWCSpectrum *  L 
) const [inline, virtual]

Reimplemented in lux::AreaLight, lux::InfiniteAreaLight, lux::PointLight, lux::SkyLight, lux::SpotLight, and lux::SunLight.

Definition at line 76 of file light.h.

References LUX_BUG, LUX_SEVERE, luxError, and warnOnce.

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

Implemented in lux::AreaLight, lux::DistantLight, lux::InfiniteAreaLight, lux::InfiniteAreaLightIS, lux::PointLight, lux::ProjectionLight, lux::SkyLight, lux::SpotLight, and lux::SunLight.

virtual SWCSpectrum lux::Light::Sample_L ( const TsPack *  tspack,
const Point &  p,
const Normal &  n,
float  u1,
float  u2,
float  u3,
Vector *  wi,
float *  pdf,
VisibilityTester *  visibility 
) const [inline, virtual]

Reimplemented in lux::AreaLight, lux::InfiniteAreaLight, and lux::SkyLight.

Definition at line 62 of file light.h.

References Sample_L().

virtual SWCSpectrum lux::Light::Sample_L ( const TsPack *  tspack,
const Point &  p,
float  u1,
float  u2,
float  u3,
Vector *  wi,
float *  pdf,
VisibilityTester *  vis 
) const [pure virtual]

Implemented in lux::AreaLight, lux::DistantLight, lux::InfiniteAreaLight, lux::InfiniteAreaLightIS, lux::PointLight, lux::ProjectionLight, lux::SkyLight, lux::SpotLight, and lux::SunLight.

Referenced by getDirectLight(), lux::SingleScattering::Li(), lux::BidirIntegrator::Li(), lux::PhotonIntegrator::Preprocess(), lux::IGIIntegrator::Preprocess(), lux::ExPhotonIntegrator::Preprocess(), and Sample_L().

Member Data Documentation

int lux::Light::group

Definition at line 97 of file light.h.

Referenced by generateEyePath(), getDirectLight(), getEnvironmentLight(), lux::SingleScattering::Li(), lux::PathIntegrator::Li(), lux::BidirIntegrator::Li(), lux::Context::lightSource(), lux::DistributedPath::LiInternal(), lux::DirectLightingIntegrator::LiInternal(), and lux::Context::shape().

bool lux::Light::havePortalShape

Definition at line 93 of file light.h.

Referenced by AddPortalShape(), lux::SunLight::checkPortals(), lux::SunLight::Le(), lux::SkyLight::Le(), lux::InfiniteAreaLight::Le(), Light(), lux::SkyLight::Pdf(), lux::InfiniteAreaLight::Pdf(), lux::SunLight::Power(), lux::SkyLight::Power(), lux::SunLight::Sample_L(), lux::SkyLight::Sample_L(), and lux::InfiniteAreaLight::Sample_L().

const Transform lux::Light::LightToWorld [protected]

Definition at line 100 of file light.h.

Referenced by lux::DistantLight::DistantLight(), lux::PointLight::PointLight(), lux::ProjectionLight::ProjectionLight(), lux::SpotLight::Sample_L(), lux::ProjectionLight::Sample_L(), lux::PointLight::Sample_L(), lux::InfiniteAreaLightIS::Sample_L(), lux::SpotLight::SpotLight(), and lux::SunLight::SunLight().

int lux::Light::nrPortalShapes

Definition at line 94 of file light.h.

Referenced by AddPortalShape(), lux::SunLight::checkPortals(), lux::SunLight::Le(), lux::SkyLight::Le(), lux::InfiniteAreaLight::Le(), Light(), lux::SkyLight::Pdf(), lux::InfiniteAreaLight::Pdf(), lux::SunLight::Sample_L(), lux::SkyLight::Sample_L(), and lux::InfiniteAreaLight::Sample_L().

const int lux::Light::nSamples

Definition at line 92 of file light.h.

Referenced by lux::AreaLight::CreateAreaLight(), lux::SunLight::CreateLight(), lux::SkyLight::CreateLight(), lux::InfiniteAreaLightIS::CreateLight(), lux::InfiniteAreaLight::CreateLight(), lux::PhotonIntegrator::RequestSamples(), and lux::IrradianceCache::RequestSamples().

float lux::Light::PortalArea

Definition at line 96 of file light.h.

Referenced by AddPortalShape(), Light(), lux::SunLight::Power(), and lux::SkyLight::Power().

vector<boost::shared_ptr<Primitive> > lux::Light::PortalShapes

Definition at line 95 of file light.h.

Referenced by AddPortalShape(), lux::SunLight::checkPortals(), lux::SunLight::Le(), lux::SkyLight::Le(), lux::InfiniteAreaLight::Le(), lux::SkyLight::Pdf(), lux::InfiniteAreaLight::Pdf(), lux::SunLight::Sample_L(), lux::SkyLight::Sample_L(), and lux::InfiniteAreaLight::Sample_L().

bool lux::Light::warnOnce [mutable, protected]

Definition at line 101 of file light.h.

Referenced by Light(), and Sample_L().

const Transform lux::Light::WorldToLight [protected]

Definition at line 100 of file light.h.

Referenced by lux::SpotLight::Falloff(), lux::SkyLight::Le(), lux::InfiniteAreaLightIS::Le(), lux::InfiniteAreaLight::Le(), Light(), lux::InfiniteAreaLightIS::Pdf(), lux::ProjectionLight::Projection(), lux::SkyLight::Sample_L(), lux::PointLight::Sample_L(), and lux::InfiniteAreaLight::Sample_L().

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