GlobalShader Class Reference

#include <GlobalShader.h>

Inheritance diagram for GlobalShader:

List of all members.

Public Member Functions
	GlobalShader (ReflectionModel *m, DiffuseBRDF *db, SpecularBRDF *sb)
virtual void	setScene (Scene *o)
virtual void	distributeEnergy (void)=0
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)=0
Protected Attributes
ReflectionModel *	_pReflectionModel
SceneGraphObject *	_pShape
Scene *	_pScene
DiffuseBRDF *	_pDefaultDiffBRDF
SpecularBRDF *	_pDefaultSpecBRDF

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Detailed Description

Global shader computes the recursive Kayia's rendering equation. This abstract class doesn't differ from the Shader class, but can be used for type checks and restrictions..

Definition at line 22 of file GlobalShader.h.

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Constructor & Destructor Documentation

GlobalShader (  ReflectionModel *  m, DiffuseBRDF *  db, SpecularBRDF *  sb )  [inline]

Constructor. Parameters: m  reflection model db  default diffuse BRDF sb  default specular BRDF Definition at line 31 of file GlobalShader.h.

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Member Function Documentation

virtual void distributeEnergy (  void   )  [pure virtual, inherited]

View-independent global energy distribution in the whole scene (first stage of the global illumination process) Implemented in LocalShader, PhotonMapShader, RadShader, and RTShader.

virtual Color3f* illuminatePoint (  const Vector3 &  location, const Vector3 &  normal, const Vector3 &  eyeDir, float  eyeDist, double *  pNV, const Matrix4 *  pTrMat )  [pure 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  either cross-product of normal and eyeDir or NULL pTrMat  transformation matrix or NULL Returns: final color of the point on success, NULL otherwise Implemented in GLShader, RadShader, and RTShader. Referenced by RTRender::_render_pixel_point(), and RadShader::illuminatePoint().

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

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 in GLShader, PhotonMapShader, and RadShader. Definition at line 85 of file Shader.h. Referenced by GLRender::_render(), GLBVRender::_render(), RTRender::_render_pixel_point(), RadShader::setRenderedShape(), and PhotonMapShader::setRenderedShape().

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

Sets the scene for energy distribution, see distributeEnergy(). Parameters: o  scene Reimplemented in PhotonMapShader, and RadShader. Definition at line 67 of file Shader.h. Referenced by PhotonMapShader::setScene().

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Member Data Documentation

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().

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().

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

• include/gra/shader/GlobalShader.h

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