Graphic3d_BSDF Class Reference

Describes material's BSDF (Bidirectional Scattering Distribution Function) used for physically-based rendering (in path tracing engine). BSDF is represented as weighted mixture of basic BRDFs/BTDFs (Bidirectional Reflectance (Transmittance) Distribution Functions). More...

#include <Graphic3d_BSDF.hxx>

Public Member Functions
	Graphic3d_BSDF ()
	Creates uninitialized BSDF. More...
void	Normalize ()
	Normalizes BSDF components. More...
Graphic3d_BSDF &	operator+ (const Graphic3d_BSDF &theOther)
	Performs mixing of two BSDFs. More...
bool	operator== (const Graphic3d_BSDF &theOther) const
	Performs comparison of two BSDFs. More...

Static Public Member Functions
static Graphic3d_BSDF	CreateDiffuse (const Graphic3d_Vec3 &theWeight)
	Creates BSDF describing diffuse (Lambertian) surface. More...
static Graphic3d_BSDF	CreateMetallic (const Graphic3d_Vec3 &theWeight, const Graphic3d_Fresnel &theFresnel, const Standard_ShortReal theRoughness)
	Creates BSDF describing polished metallic-like surface. More...
static Graphic3d_BSDF	CreateTransparent (const Graphic3d_Vec3 &theWeight, const Graphic3d_Vec3 &theAbsorptionColor, const Standard_ShortReal theAbsorptionCoeff)
	Creates BSDF describing transparent object. Transparent BSDF models simple transparency without refraction (the ray passes straight through the surface). More...
static Graphic3d_BSDF	CreateGlass (const Graphic3d_Vec3 &theWeight, const Graphic3d_Vec3 &theAbsorptionColor, const Standard_ShortReal theAbsorptionCoeff, const Standard_ShortReal theRefractionIndex)
	Creates BSDF describing glass-like object. Glass-like BSDF mixes refraction and reflection effects at grazing angles using physically-based Fresnel dielectric model. More...

Data Fields
Graphic3d_Vec3	Kd
	Weight of the Lambertian BRDF. More...
Graphic3d_Vec3	Kr
	Weight of the reflection BRDF. More...
Graphic3d_Vec3	Kt
	Weight of the transmission BTDF. More...
Graphic3d_Vec3	Ks
	Weight of the Blinn's glossy BRDF. More...
Graphic3d_Vec3	Le
	Self-emitted radiance. More...
Graphic3d_Fresnel	Fresnel
	Parameters of Fresnel reflectance. More...
Standard_ShortReal	Roughness
	Roughness (exponent) of Blinn's BRDF. More...
Graphic3d_Vec3	AbsorptionColor
	Absorption color of transparent media. More...
Standard_ShortReal	AbsorptionCoeff
	Absorption intensity of transparent media. More...

Detailed Description

Describes material's BSDF (Bidirectional Scattering Distribution Function) used for physically-based rendering (in path tracing engine). BSDF is represented as weighted mixture of basic BRDFs/BTDFs (Bidirectional Reflectance (Transmittance) Distribution Functions).

Constructor & Destructor Documentation

Graphic3d_BSDF::Graphic3d_BSDF ( )

inline

Creates uninitialized BSDF.

Member Function Documentation

static Graphic3d_BSDF Graphic3d_BSDF::CreateDiffuse ( const Graphic3d_Vec3 &  theWeight )

static

Creates BSDF describing diffuse (Lambertian) surface.

static Graphic3d_BSDF Graphic3d_BSDF::CreateGlass ( const Graphic3d_Vec3 &  theWeight, const Graphic3d_Vec3 &  theAbsorptionColor, const Standard_ShortReal  theAbsorptionCoeff, const Standard_ShortReal  theRefractionIndex  )

static

Creates BSDF describing glass-like object. Glass-like BSDF mixes refraction and reflection effects at grazing angles using physically-based Fresnel dielectric model.

static Graphic3d_BSDF Graphic3d_BSDF::CreateMetallic ( const Graphic3d_Vec3 &  theWeight, const Graphic3d_Fresnel &  theFresnel, const Standard_ShortReal  theRoughness  )

static

Creates BSDF describing polished metallic-like surface.

static Graphic3d_BSDF Graphic3d_BSDF::CreateTransparent ( const Graphic3d_Vec3 &  theWeight, const Graphic3d_Vec3 &  theAbsorptionColor, const Standard_ShortReal  theAbsorptionCoeff  )

static

Creates BSDF describing transparent object. Transparent BSDF models simple transparency without refraction (the ray passes straight through the surface).

void Graphic3d_BSDF::Normalize

(

)

Normalizes BSDF components.

Graphic3d_BSDF& Graphic3d_BSDF::operator+ ( const Graphic3d_BSDF &  theOther )

inline

Performs mixing of two BSDFs.

bool Graphic3d_BSDF::operator== ( const Graphic3d_BSDF &  theOther ) const

inline

Performs comparison of two BSDFs.

Field Documentation

Standard_ShortReal Graphic3d_BSDF::AbsorptionCoeff

Absorption intensity of transparent media.

Graphic3d_Vec3 Graphic3d_BSDF::AbsorptionColor

Absorption color of transparent media.

Graphic3d_Fresnel Graphic3d_BSDF::Fresnel

Parameters of Fresnel reflectance.

Graphic3d_Vec3 Graphic3d_BSDF::Kd

Weight of the Lambertian BRDF.

Graphic3d_Vec3 Graphic3d_BSDF::Kr

Weight of the reflection BRDF.

Graphic3d_Vec3 Graphic3d_BSDF::Ks

Weight of the Blinn's glossy BRDF.

Graphic3d_Vec3 Graphic3d_BSDF::Kt

Weight of the transmission BTDF.

Graphic3d_Vec3 Graphic3d_BSDF::Le

Self-emitted radiance.

Standard_ShortReal Graphic3d_BSDF::Roughness

Roughness (exponent) of Blinn's BRDF.

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

• Graphic3d_BSDF.hxx