Emitter Class Reference

#include <emitter.h>

Public Member Functions
virtual void	SamplePosition (const Math::Vec2 &sample, SurfaceGeometry &geom, Math::PDFEval &pdf) const =0
virtual Math::Vec3	EvaluatePosition (const SurfaceGeometry &geom) const =0
virtual Math::PDFEval	EvaluatePositionPDF (const SurfaceGeometry &geom) const =0
virtual void	RegisterPrimitives (const std::vector< Primitive * > &primitives)=0
virtual void	PostConfigure (const Scene &scene)=0
virtual EmitterShape *	CreateEmitterShape () const =0
virtual AABB	GetAABB () const =0
Public Member Functions inherited from GeneralizedBSDF
virtual bool	SampleDirection (const GeneralizedBSDFSampleQuery &query, const SurfaceGeometry &geom, GeneralizedBSDFSampleResult &result) const =0
virtual Math::Vec3	SampleAndEstimateDirection (const GeneralizedBSDFSampleQuery &query, const SurfaceGeometry &geom, GeneralizedBSDFSampleResult &result) const =0
virtual bool	SampleAndEstimateDirectionBidir (const GeneralizedBSDFSampleQuery &query, const SurfaceGeometry &geom, GeneralizedBSDFSampleBidirResult &result) const =0
virtual Math::Vec3	EvaluateDirection (const GeneralizedBSDFEvaluateQuery &query, const SurfaceGeometry &geom) const =0
virtual Math::PDFEval	EvaluateDirectionPDF (const GeneralizedBSDFEvaluateQuery &query, const SurfaceGeometry &geom) const =0
virtual int	BSDFTypes () const =0
Public Member Functions inherited from Asset
virtual bool	Load (const ConfigNode &node, const Assets &assets)=0
LM_PUBLIC_API std::string	ID () const
LM_HIDDEN_API void	SetID (const std::string &id)
Public Member Functions inherited from Component
virtual std::string	ComponentInterfaceTypeName () const =0
virtual std::string	ComponentImplTypeName () const =0
Public Member Functions inherited from SIMDAlignedType
void *	operator new (std::size_t size) throw (std::bad_alloc)
void	operator delete (void *p)

Detailed Description

Emitter. The base class of Light and Camera.

Inheritance diagram for Emitter:

Member Function Documentation

virtual EmitterShape* Emitter::CreateEmitterShape ( ) const

pure virtual

Get associated emitter shapes. Some emitter is associated with intersectable shapes (e.g., sphere for environment lights) in order to integrate emitters with BPT based rendering techniques. Ownership of the created instance is delegated to the caller.

Returns

Instance of emitter shape.

Implemented in AreaLight, PerspectiveCamera, and ConstantEnvironmentLight.

virtual Math::Vec3 Emitter::EvaluatePosition ( const SurfaceGeometry &  geom ) const

pure virtual

Evaluate the positional component of the emitted quantity.

Parameters

geom	Surface geometry.

Returns

Positional component of the emitted quantity.

Implemented in AreaLight, PerspectiveCamera, ThinLensCamera, and ConstantEnvironmentLight.

virtual Math::PDFEval Emitter::EvaluatePositionPDF ( const SurfaceGeometry &  geom ) const

pure virtual

Evaluate positional PDF.

Parameters

geom	Surface geometry.

Returns

Evaluated PDF.

Implemented in AreaLight, PerspectiveCamera, ThinLensCamera, and ConstantEnvironmentLight.

virtual void Emitter::PostConfigure ( const Scene &  scene )

pure virtual

Post configuration after scene is built. Some emitter needs to be configured after scene is built. TODO : Replace RegisterPrimitive function with this function.

Parameters

scene

Scene.

Implemented in AreaLight, PerspectiveCamera, and ConstantEnvironmentLight.

virtual void Emitter::RegisterPrimitives ( const std::vector< Primitive * > &  primitives )

pure virtual

Register an reference to the primitive. Some implementation of camera needs transformed mesh information for sampling. The function registers the reference to the primitive. The function is internally called.

Parameters

primitives

An list instances of the primitive.

Implemented in AreaLight, PerspectiveCamera, ThinLensCamera, and ConstantEnvironmentLight.

virtual void Emitter::SamplePosition ( const Math::Vec2 &  sample, SurfaceGeometry &  geom, Math::PDFEval &  pdf  ) const

pure virtual

Sample a position on the light.

Parameters

sample	Position sample.
geom	Surface geometry at sampled position #geom.p.
pdf	Evaluated PDF (area measure).

Implemented in AreaLight, PerspectiveCamera, ThinLensCamera, and ConstantEnvironmentLight.

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

• /home/travis/build/hi2p-perim/lightmetrica/include/lightmetrica/emitter.h