lux::SunLight Class Reference

#include <sun.h>

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

Public Member Functions

 SunLight (const Transform &light2world, const float sunscale, const Vector &dir, float turb, float relSize, int ns)
virtual ~SunLight ()
virtual bool IsDeltaLight () const
virtual bool IsEnvironmental () const
virtual SWCSpectrum Power (const TsPack *tspack, const Scene *scene) const
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 *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

Static Public Member Functions

static Light * CreateLight (const Transform &light2world, const ParamSet &paramSet, const TextureParams &tp)

Private Member Functions

bool checkPortals (Ray portalRay) const

Private Attributes

Vector sundir
Vector x
Vector y
float turbidity
float thetaS
float phiS
float V
float cosThetaMax
float sin2ThetaMax
SPD * LSPD

Detailed Description

Definition at line 34 of file sun.h.

Constructor & Destructor Documentation

SunLight::SunLight ( const Transform &  light2world,
const float  sunscale,
const Vector &  dir,
float  turb,
float  relSize,
int  ns 
)

Definition at line 68 of file sun.cpp.

References lux::CoordinateSystem(), cimg_library::cos(), cosThetaMax, lux::Light::LightToWorld, LSPD, LUX_LIMIT, LUX_WARNING, luxError, lux::Normalize(), phiS, cimg_library::pow(), lux::SPD::sample(), lux::SPD::Scale(), sin2ThetaMax, lux::SphericalPhi(), lux::SphericalTheta(), lux::sun_k_gAmplitudes, lux::sun_k_gWavelengths, lux::sun_k_oAmplitudes, lux::sun_k_oWavelengths, lux::sun_k_waAmplitudes, lux::sun_k_waWavelengths, lux::sun_solAmplitudes, sundir, thetaS, turbidity, x, and y.

Referenced by CreateLight().

virtual lux::SunLight::~SunLight (  )  [inline, virtual]

Definition at line 38 of file sun.h.

References LSPD.

Member Function Documentation

bool SunLight::checkPortals ( Ray  portalRay  )  const [private]

Definition at line 188 of file sun.cpp.

References lux::Ray::d, lux::Intersection::dg, lux::Dot(), lux::Light::havePortalShape, lux::DifferentialGeometry::nn, lux::Light::nrPortalShapes, and lux::Light::PortalShapes.

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

Definition at line 430 of file sun.cpp.

References lux::ParamSet::FindOneFloat(), lux::ParamSet::FindOneInt(), lux::ParamSet::FindOneVector(), lux::Light::nSamples, sundir, and SunLight().

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

Implements lux::Light.

Definition at line 39 of file sun.h.

References cosThetaMax.

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

Implements lux::Light.

Definition at line 40 of file sun.h.

SWCSpectrum SunLight::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 146 of file sun.cpp.

References lux::AbsDot(), lux::BBox::BoundingSphere(), BSDF_ALLOC, cosThetaMax, lux::Ray::d, lux::Intersection::dg, lux::DistanceSquared(), lux::Dot(), lux::BSDF::f(), lux::Light::havePortalShape, LSPD, M_PI, lux::Ray::mint, lux::DifferentialGeometry::nn, lux::Light::nrPortalShapes, lux::Ray::o, lux::DifferentialGeometry::p, lux::Light::PortalShapes, sin2ThetaMax, sundir, lux::UniformConePdf(), lux::Scene::WorldBound(), x, and y.

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

Reimplemented from lux::Light.

Definition at line 138 of file sun.cpp.

References cosThetaMax, lux::Ray::d, lux::Dot(), LSPD, and sundir.

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

Implements lux::Light.

Definition at line 233 of file sun.cpp.

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

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

Implements lux::Light.

Definition at line 227 of file sun.cpp.

References cosThetaMax, and lux::UniformConePdf().

virtual SWCSpectrum lux::SunLight::Power ( const TsPack *  tspack,
const Scene *  scene 
) const [inline, virtual]

Implements lux::Light.

Definition at line 41 of file sun.h.

References lux::BBox::BoundingSphere(), cosThetaMax, lux::Light::havePortalShape, LSPD, M_PI, lux::Light::PortalArea, and lux::Scene::WorldBound().

bool SunLight::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 367 of file sun.cpp.

References lux::AbsDot(), lux::BBox::BoundingSphere(), BSDF_ALLOC, cosThetaMax, lux::Intersection::dg, lux::DistanceSquared(), lux::Dot(), lux::Light::havePortalShape, LSPD, M_PI, lux::Ray::mint, lux::DifferentialGeometry::nn, lux::Light::nrPortalShapes, lux::DifferentialGeometry::p, lux::Light::PortalShapes, lux::VisibilityTester::SetSegment(), sin2ThetaMax, sundir, lux::TsPack::time, lux::UniformConePdf(), lux::UniformSampleCone(), lux::Scene::WorldBound(), x, and y.

bool SunLight::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 305 of file sun.cpp.

References lux::BBox::BoundingSphere(), BSDF_ALLOC, lux::ConcentricSampleDisk(), lux::Intersection::dg, lux::Dot(), Floor2Int(), lux::Light::havePortalShape, LSPD, M_PI, cimg_library::cimg::min(), lux::Ray::mint, lux::DifferentialGeometry::nn, lux::Light::nrPortalShapes, lux::DifferentialGeometry::p, lux::Light::PortalShapes, sin2ThetaMax, sundir, lux::TsPack::time, lux::DifferentialGeometry::time, lux::Scene::WorldBound(), x, and y.

SWCSpectrum SunLight::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 243 of file sun.cpp.

References lux::BBox::BoundingSphere(), lux::ConcentricSampleDisk(), cosThetaMax, lux::Ray::d, lux::Dot(), lux::RandomGenerator::floatValue(), Floor2Int(), lux::Light::havePortalShape, lux::Vector::Length(), LSPD, M_PI, lux::DifferentialGeometry::nn, lux::Light::nrPortalShapes, lux::Ray::o, lux::DifferentialGeometry::p, lux::Light::PortalShapes, lux::TsPack::rng, sundir, lux::TsPack::time, lux::DifferentialGeometry::time, lux::UniformConePdf(), lux::UniformSampleCone(), lux::Scene::WorldBound(), x, and y.

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

Implements lux::Light.

Definition at line 210 of file sun.cpp.

References cosThetaMax, LSPD, lux::VisibilityTester::SetRay(), sundir, lux::TsPack::time, lux::UniformConePdf(), lux::UniformSampleCone(), x, and y.

Member Data Documentation

float lux::SunLight::cosThetaMax [private]

Definition at line 74 of file sun.h.

Referenced by IsDeltaLight(), Le(), Pdf(), Power(), Sample_L(), and SunLight().

SPD* lux::SunLight::LSPD [private]

Definition at line 75 of file sun.h.

Referenced by Le(), Power(), Sample_L(), SunLight(), and ~SunLight().

float lux::SunLight::phiS [private]

Definition at line 73 of file sun.h.

Referenced by SunLight().

float lux::SunLight::sin2ThetaMax [private]

Definition at line 74 of file sun.h.

Referenced by Le(), Sample_L(), and SunLight().

Vector lux::SunLight::sundir [private]

Definition at line 69 of file sun.h.

Referenced by CreateLight(), Le(), Sample_L(), and SunLight().

float lux::SunLight::thetaS [private]

Definition at line 73 of file sun.h.

Referenced by SunLight().

float lux::SunLight::turbidity [private]

Definition at line 72 of file sun.h.

Referenced by SunLight().

float lux::SunLight::V [private]

Definition at line 73 of file sun.h.

Vector lux::SunLight::x [private]

Definition at line 71 of file sun.h.

Referenced by Le(), Sample_L(), and SunLight().

Vector lux::SunLight::y [private]

Definition at line 71 of file sun.h.

Referenced by Le(), Sample_L(), and SunLight().

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