DistantLight Class Reference

Inheritance diagram for DistantLight:

List of all members.

Public Member Functions
	DistantLight (const Transform &light2world, const Spectrum &radiance, const Vector &dir)
bool	IsDeltaLight () const
Spectrum	Sample_L (const Point &p, Vector *wi, VisibilityTester *) const
Spectrum	Power (const Scene *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
Vector	lightDir
Spectrum	L

---

Detailed Description

Definition at line 30 of file distant.cpp.

---

Constructor & Destructor Documentation

DistantLight::DistantLight	(	const Transform &	light2world,
		const Spectrum &	radiance,
		const Vector &	dir
	)

Definition at line 54 of file distant.cpp.

References L, lightDir, Light::LightToWorld, and Normalize().

Referenced by CreateLight().

---

Member Function Documentation

bool DistantLight::IsDeltaLight

(

)

const [inline, virtual]

Implements Light.

Definition at line 34 of file distant.cpp.

Spectrum DistantLight::Sample_L	(	const Point &	p,
		Vector *	wi,
		VisibilityTester *	visibility
	)			const [virtual]

Implements Light.

Definition at line 60 of file distant.cpp.

References L, lightDir, and VisibilityTester::SetRay().

Referenced by Sample_L().

Spectrum DistantLight::Power

(

const Scene *

scene

)

const [inline, virtual]

Implements Light.

Definition at line 36 of file distant.cpp.

References BBox::BoundingSphere(), L, M_PI, and Scene::WorldBound().

Spectrum DistantLight::Sample_L	(	const Point &	P,
		float	u1,
		float	u2,
		Vector *	wo,
		float *	pdf,
		VisibilityTester *	visibility
	)			const [virtual]

Implements Light.

Definition at line 66 of file distant.cpp.

References Sample_L().

Spectrum DistantLight::Sample_L	(	const Scene *	scene,
		float	u1,
		float	u2,
		float	u3,
		float	u4,
		Ray *	ray,
		float *	pdf
	)			const [virtual]

Implements Light.

Definition at line 74 of file distant.cpp.

References BBox::BoundingSphere(), ConcentricSampleDisk(), CoordinateSystem(), Ray::d, L, lightDir, M_PI, Ray::o, and Scene::WorldBound().

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

Implements Light.

Definition at line 71 of file distant.cpp.

---

Member Data Documentation

Vector DistantLight::lightDir [private]

Definition at line 50 of file distant.cpp.

Referenced by DistantLight(), and Sample_L().

Spectrum DistantLight::L [private]

Definition at line 51 of file distant.cpp.

Referenced by CreateLight(), DistantLight(), Power(), and Sample_L().

---

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

• distant.cpp