Public Member Functions | |
ProjectionLight (const Transform &light2world, const Spectrum &intensity, const string &texname, float fov) | |
~ProjectionLight () | |
Spectrum | Sample_L (const Point &p, Vector *wi, VisibilityTester *vis) const |
bool | IsDeltaLight () const |
Spectrum | Projection (const Vector &w) const |
Spectrum | Power (const Scene *) const |
Spectrum | Sample_L (const Point &P, float u1, float u2, Vector *wo, float *pdf, VisibilityTester *visibility) const |
Spectrum | Sample_L (const Scene *scene, float u1, float u2, float u3, float u4, Ray *ray, float *pdf) const |
float | Pdf (const Point &, const Vector &) const |
Private Attributes | |
MIPMap< Spectrum > * | projectionMap |
Point | lightPos |
Spectrum | Intensity |
Transform | lightProjection |
float | hither |
float | yon |
float | screenX0 |
float | screenX1 |
float | screenY0 |
float | screenY1 |
float | cosTotalWidth |
Definition at line 30 of file projection.cpp.
ProjectionLight::ProjectionLight | ( | const Transform & | light2world, | |
const Spectrum & | intensity, | |||
const string & | texname, | |||
float | fov | |||
) |
Definition at line 60 of file projection.cpp.
References cosTotalWidth, hither, Intensity, lightPos, lightProjection, Light::LightToWorld, Perspective(), projectionMap, Radians(), RAY_EPSILON, ReadImage(), screenX0, screenX1, screenY0, screenY1, and yon.
Referenced by CreateLight().
ProjectionLight::~ProjectionLight | ( | ) |
Spectrum ProjectionLight::Sample_L | ( | const Point & | p, | |
Vector * | wi, | |||
VisibilityTester * | vis | |||
) | const [virtual] |
Implements Light.
Definition at line 94 of file projection.cpp.
References DistanceSquared(), Intensity, lightPos, Normalize(), Projection(), and VisibilityTester::SetSegment().
bool ProjectionLight::IsDeltaLight | ( | ) | const [inline, virtual] |
Definition at line 101 of file projection.cpp.
References hither, lightProjection, MIPMap< T >::Lookup(), projectionMap, screenX0, screenX1, screenY0, screenY1, Light::WorldToLight, Point::x, Vector::x, Point::y, Vector::y, and Vector::z.
Referenced by Sample_L().
Implements Light.
Definition at line 39 of file projection.cpp.
References cosTotalWidth, Intensity, MIPMap< T >::Lookup(), M_PI, and projectionMap.
Spectrum ProjectionLight::Sample_L | ( | const Point & | P, | |
float | u1, | |||
float | u2, | |||
Vector * | wo, | |||
float * | pdf, | |||
VisibilityTester * | visibility | |||
) | const [virtual] |
Implements Light.
Definition at line 114 of file projection.cpp.
References DistanceSquared(), Intensity, lightPos, Normalize(), Projection(), and VisibilityTester::SetSegment().
Spectrum ProjectionLight::Sample_L | ( | const Scene * | scene, | |
float | u1, | |||
float | u2, | |||
float | u3, | |||
float | u4, | |||
Ray * | ray, | |||
float * | ||||
) | const [virtual] |
Implements Light.
Definition at line 122 of file projection.cpp.
References cosTotalWidth, Ray::d, Intensity, lightPos, Light::LightToWorld, Ray::o, Projection(), UniformConePdf(), and UniformSampleCone().
MIPMap<Spectrum>* ProjectionLight::projectionMap [private] |
Definition at line 50 of file projection.cpp.
Referenced by Power(), Projection(), ProjectionLight(), and ~ProjectionLight().
Point ProjectionLight::lightPos [private] |
Spectrum ProjectionLight::Intensity [private] |
Definition at line 52 of file projection.cpp.
Referenced by Power(), ProjectionLight(), and Sample_L().
Transform ProjectionLight::lightProjection [private] |
float ProjectionLight::hither [private] |
float ProjectionLight::yon [private] |
float ProjectionLight::screenX0 [private] |
float ProjectionLight::screenX1 [private] |
float ProjectionLight::screenY0 [private] |
float ProjectionLight::screenY1 [private] |
float ProjectionLight::cosTotalWidth [private] |
Definition at line 56 of file projection.cpp.
Referenced by Power(), ProjectionLight(), and Sample_L().