toxic::IAreaLight Class Reference

#include <iarealight.h>

Inheritance diagram for toxic::IAreaLight:

List of all members.

Public Member Functions
	IAreaLight (const sheep::Matrix4 &m, const ISurfaceShader *surface_shader, IntersectionMask intersection_mask=INTERSECT_ALL_RAYS)
	m is the object space to world space transformation matrix.
virtual	~IAreaLight ()
virtual void	Finalize (const Context &context)
virtual const Color3 &	GetPower () const
	Returns the emission power of this object, expressed in W.
virtual Ray	GeneratePhotonRay (const Context &context) const
virtual void	ComputeIrradiance (const Context &context, const Scene *scene, const sheep::Point3 &point, const sheep::Vector3 &geometric_normal, const sheep::Vector3 &shading_normal, const ISurfaceSampler::SampleVector &input, IrradianceSampleVector *output) const
Protected Attributes
sheep::Real	m_surface_area
	Cached value of the surface area of this object, expressed in m^2.
Color3	m_power
	Emission power of this object, expressed in W.

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Constructor & Destructor Documentation

IAreaLight::IAreaLight (  const sheep::Matrix4 &  m, const ISurfaceShader *  surface_shader, IntersectionMask  intersection_mask = INTERSECT_ALL_RAYS )

m is the object space to world space transformation matrix. Definition at line 44 of file iarealight.cpp.

virtual toxic::IAreaLight::~IAreaLight (   )  [inline, virtual]

Definition at line 51 of file iarealight.h.

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Member Function Documentation

void IAreaLight::ComputeIrradiance (  const Context &  context, const Scene *  scene, const sheep::Point3 &  point, const sheep::Vector3 &  geometric_normal, const sheep::Vector3 &  shading_normal, const ISurfaceSampler::SampleVector &  input, IrradianceSampleVector *  output )  const [virtual]

Computes irradiance due to this light source. The point and the surface normal are both expressed in world space. Todo: Not sure which normal to use. Implements toxic::ILight. Reimplemented in toxic::Sphere. Definition at line 89 of file iarealight.cpp. References toxic::Scene::ArePointsMutuallyVisible(), toxic::IBoundedObject::EvaluateSurface(), toxic::ISurfaceShader::GetEDF(), toxic::IEDF::GetEmittedRadiance(), toxic::ISurfaceShader::GetRadiantExitance(), toxic::IObject::GetSurfaceShader(), sheep::Vector3::IsUnitLength(), toxic::Statistics::m_shadow_rays, toxic::Context::m_statistics, m_surface_area, toxic::ISurfaceSampler::SampleVector, and sheep::Vector3::SquareNorm().

void IAreaLight::Finalize (  const Context &  context  )  [virtual]

This method must be called only once, after the object is completely configured, and before it is used for the first time. Reimplemented from toxic::IObject. Reimplemented in toxic::Mesh. Definition at line 52 of file iarealight.cpp. References toxic::IBoundedObject::ComputeSurfaceArea(), toxic::ISurfaceShader::GetRadiantExitance(), m_power, and m_surface_area. Referenced by toxic::Mesh::Finalize().

Ray IAreaLight::GeneratePhotonRay (  const Context &  context  )  const [virtual]

Implements toxic::ILight. Definition at line 60 of file iarealight.cpp. References toxic::IBoundedObject::EvaluateSurface(), toxic::ISurfaceShader::GetEDF(), toxic::IObject::GetSurfaceShader(), toxic::Ray::m_direction, toxic::Ray::m_origin, toxic::Context::m_rng, sheep::MT19937RNG::RandomReal1(), and toxic::IEDF::Sample().

const Color3 & IAreaLight::GetPower (   )  const [inline, virtual]

Returns the emission power of this object, expressed in W. Implements toxic::ILight. Definition at line 102 of file iarealight.h.

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Member Data Documentation

Color3 toxic::IAreaLight::m_power [protected]

Emission power of this object, expressed in W. Definition at line 76 of file iarealight.h. Referenced by Finalize().

sheep::Real toxic::IAreaLight::m_surface_area [protected]

Cached value of the surface area of this object, expressed in m^2. Definition at line 75 of file iarealight.h. Referenced by ComputeIrradiance(), and Finalize().

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

• iarealight.h
• iarealight.cpp
• iarealight.inl

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