PhotonMapShader Class Reference

#include <PhotonMapShader.h>

Inheritance diagram for PhotonMapShader:

List of all members.

Public Types
enum	Mapping { SCENE_MAPS, MAPS_PER_SHAPE }
Public Member Functions
	PhotonMapShader (PhotonTracing *m, Caustics *c, PhotonMapping *n, DiffuseBRDF *db, SpecularBRDF *sb, unsigned p, Mapping mapping, bool u)
virtual void	setScene (Scene *o)
virtual void	distributeEnergy (void)
virtual bool	setRenderedShape (SceneGraphObject *pShape, const Matrix4 *pTrMat)
virtual Color3f *	illuminatePoint (const Vector3 &location, const Vector3 &normal, const Vector3 &eyeDir, float eyeDist, double *pNV, const Matrix4 *pTrMat)
Protected Member Functions
void	_create_scene_maps (List< PhotonMapEnergy > &, List< SceneGraphObject > &)
void	_create_maps_per_shape (List< PhotonMapEnergy > &, List< SceneGraphObject > &)
PointEnv *	_emit_global_photon (const Vector3 &, const Vector3 &)
PointEnv *	_emit_caustic_photon (const Vector3 &, const Vector3 &)
Protected Attributes
PhotonTracing *	_pPhotonTracing
Caustics *	_pCausticsEmittion
LightArray *	_pLights
unsigned	_photonsPerLight
Mapping	_mapping
bool	_userDefinedBehaviour
ReflectionModel *	_pReflectionModel
SceneGraphObject *	_pShape
Scene *	_pScene
DiffuseBRDF *	_pDefaultDiffBRDF
SpecularBRDF *	_pDefaultSpecBRDF

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Detailed Description

Shader for photon mapping.

Definition at line 21 of file PhotonMapShader.h.

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Member Enumeration Documentation

enum Mapping

Enumerator: SCENE_MAPS  single global and caustics map for entire scene MAPS_PER_SHAPE  global and caustics maps per each shape Definition at line 23 of file PhotonMapShader.h.

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Constructor & Destructor Documentation

PhotonMapShader (  PhotonTracing *  m, Caustics *  c, PhotonMapping *  n, DiffuseBRDF *  db, SpecularBRDF *  sb, unsigned  p, Mapping  mapping, bool  u )  [inline]

Constructor. Parameters: m  reflection model for photons emmition (first stage) c  reflection model for caustics (first stage) n  reflection model for final photon mapping (second stage) db  default diffuse BRDF sb  default specular BRDF p  num. photons emiited per light mapping  strategy of the creation fo photon maps u  wheter to use user-predefined photon map behaviour Definition at line 57 of file PhotonMapShader.h.

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Member Function Documentation

void _create_maps_per_shape (  List< PhotonMapEnergy > &  , List< SceneGraphObject > &  )  [protected]

Definition at line 69 of file PhotonMapShader.cc. References Shader::_pScene, PhotonMapShader::_userDefinedBehaviour, and Scene::root(). Referenced by PhotonMapShader::distributeEnergy().

void _create_scene_maps (  List< PhotonMapEnergy > &  , List< SceneGraphObject > &  )  [protected]

Definition at line 8 of file PhotonMapShader.cc. References Shader::_pScene, PhotonMapShader::_userDefinedBehaviour, and Scene::root(). Referenced by PhotonMapShader::distributeEnergy().

PointEnv * _emit_caustic_photon (  const Vector3 &  , const Vector3 &  )  [protected]

Definition at line 157 of file PhotonMapShader.cc. References Shader::_pScene, and Scene::root().

PointEnv * _emit_global_photon (  const Vector3 &  , const Vector3 &  )  [protected]

Definition at line 125 of file PhotonMapShader.cc. References Shader::_pScene, and Scene::root(). Referenced by PhotonMapShader::distributeEnergy().

void distributeEnergy (  void   )  [virtual]

View-independent global energy distribution in the whole scene (first stage of the global illumination process) Reimplemented from RTShader. Definition at line 190 of file PhotonMapShader.cc. References PhotonMapShader::_create_maps_per_shape(), PhotonMapShader::_create_scene_maps(), PhotonMapShader::_emit_global_photon(), PhotonMapShader::_mapping, PhotonMapShader::_pCausticsEmittion, Shader::_pDefaultDiffBRDF, Shader::_pDefaultSpecBRDF, PhotonMapShader::_photonsPerLight, PhotonMapShader::_pLights, PhotonMapShader::_pPhotonTracing, Shader::_pScene, PhotonTracing::illuminatePoint(), PhotonMapShader::MAPS_PER_SHAPE, Scene::root(), PhotonMapShader::SCENE_MAPS, RayTracing::setDiffuseBRDF(), RayTracing::setScene(), and RayTracing::setSpecularBRDF().

Color3f * illuminatePoint (  const Vector3 &  location, const Vector3 &  normal, const Vector3 &  eyeDir, float  eyeDist, double *  pNV, const Matrix4 *  pTrMat )  [virtual, inherited]

View-restricted illumination of individual points on surface (second stage of the global illumination process). Two combinations of parametters are possible: 1) Vectors are not transformed and the transformation matrix is identical to the matrix of the setRenderedShape() function. 2) Vectors are already transformed and the matrix is NULL. Parameters: location  point's location on surface (space coords.) normal  normalized normal vector eyeDir  normalized direction from towards viewer eyeDist  distance to viewer pNV  cross-product of normal and eyeDir, or NULL pTrMat  transformation matrix or NULL Returns: final color of the point on success, NULL otherwise Implements Shader. Definition at line 5 of file RTShader.cc. References Shader::_pReflectionModel, Shader::_pShape, and ReflectionModel::illuminatePoint().

virtual bool setRenderedShape (  SceneGraphObject *  pShape, const Matrix4 *  pTrMat )  [inline, virtual]

Sets the shape of interest used for per-surface point illumination, see illuminatePoint(). Parameters: pShape  shape of interest pTrMat  transformation matrix of the shape Reimplemented from Shader. Definition at line 97 of file PhotonMapShader.h. References Shader::setRenderedShape().

virtual void setScene (  Scene *  o  )  [inline, virtual]

Sets the scene for energy distribution, see distributeEnergy(). Parameters: o  scene Reimplemented from Shader. Definition at line 78 of file PhotonMapShader.h. References Shader::setScene().

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Member Data Documentation

Mapping _mapping [protected]

Definition at line 33 of file PhotonMapShader.h. Referenced by PhotonMapShader::distributeEnergy().

Caustics* _pCausticsEmittion [protected]

Definition at line 30 of file PhotonMapShader.h. Referenced by PhotonMapShader::distributeEnergy().

DiffuseBRDF* _pDefaultDiffBRDF [protected, inherited]

Definition at line 39 of file Shader.h. Referenced by PhotonMapShader::distributeEnergy().

SpecularBRDF* _pDefaultSpecBRDF [protected, inherited]

Definition at line 40 of file Shader.h. Referenced by PhotonMapShader::distributeEnergy().

unsigned _photonsPerLight [protected]

Definition at line 32 of file PhotonMapShader.h. Referenced by PhotonMapShader::distributeEnergy().

LightArray* _pLights [protected]

Definition at line 31 of file PhotonMapShader.h. Referenced by PhotonMapShader::distributeEnergy().

PhotonTracing* _pPhotonTracing [protected]

Definition at line 29 of file PhotonMapShader.h. Referenced by PhotonMapShader::distributeEnergy().

ReflectionModel* _pReflectionModel [protected, inherited]

Definition at line 36 of file Shader.h. Referenced by RadShader::distributeEnergy(), and RTShader::illuminatePoint().

Scene* _pScene [protected, inherited]

Definition at line 38 of file Shader.h. Referenced by PhotonMapShader::_create_maps_per_shape(), PhotonMapShader::_create_scene_maps(), PhotonMapShader::_emit_caustic_photon(), PhotonMapShader::_emit_global_photon(), PhotonMapShader::distributeEnergy(), and RadShader::setScene().

SceneGraphObject* _pShape [protected, inherited]

Definition at line 37 of file Shader.h. Referenced by RTShader::illuminatePoint(), and GLShader::setRenderedShape().

bool _userDefinedBehaviour [protected]

Definition at line 34 of file PhotonMapShader.h. Referenced by PhotonMapShader::_create_maps_per_shape(), and PhotonMapShader::_create_scene_maps().

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

• include/gra/shader/PhotonMapShader.h
• src/PhotonMapShader.cc

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