reflection.h File Reference

#include "pbrt.h"
#include "geometry.h"
#include "shape.h"
#include "rng.h"
#include "spectrum.h"
#include "kdtree.h"

Go to the source code of this file.

Classes
struct	IrregIsotropicBRDFSample
struct	BSDFSample
struct	BSDFSampleOffsets
class	BSDF
class	BxDF
class	BRDFToBTDF
class	ScaledBxDF
class	Fresnel
class	FresnelConductor
class	FresnelDielectric
class	FresnelNoOp
class	SpecularReflection
class	SpecularTransmission
class	Lambertian
class	OrenNayar
class	MicrofacetDistribution
class	Microfacet
class	Blinn
class	Anisotropic
class	FresnelBlend
class	IrregIsotropicBRDF
class	RegularHalfangleBRDF
class	BSSRDF
Defines
#define	MAX_BxDFS   8
#define	BSDF_ALLOC(arena, Type)   new (arena.Alloc(sizeof(Type))) Type
Enumerations
enum	BxDFType {   BSDF_REFLECTION = 1<<0, BSDF_TRANSMISSION = 1<<1, BSDF_DIFFUSE = 1<<2, BSDF_GLOSSY = 1<<3,   BSDF_SPECULAR = 1<<4, BSDF_ALL_TYPES, BSDF_ALL_REFLECTION, BSDF_ALL_TRANSMISSION,   BSDF_ALL }
Functions
Spectrum	FrDiel (float cosi, float cost, const Spectrum &etai, const Spectrum &etat)
Spectrum	FrCond (float cosi, const Spectrum &n, const Spectrum &k)
Spectrum	FresnelApproxEta (const Spectrum &intensity)
Spectrum	FresnelApproxK (const Spectrum &intensity)
Point	BRDFRemap (const Vector &wo, const Vector &wi)
float	Fdr (float eta)
float	CosTheta (const Vector &w)
float	AbsCosTheta (const Vector &w)
float	SinTheta2 (const Vector &w)
float	SinTheta (const Vector &w)
float	CosPhi (const Vector &w)
float	SinPhi (const Vector &w)
bool	SameHemisphere (const Vector &w, const Vector &wp)

---

Define Documentation

#define BSDF_ALLOC	(	arena,
		Type		)	new (arena.Alloc(sizeof(Type))) Type

Definition at line 190 of file reflection.h.

Referenced by createAniso0_0(), createAniso10_10(), createAniso30_30(), createBlinn0(), createBlinn05(), createBlinn2(), createBlinn30and0(), createFresnelBlend0(), createFresnelBlend30(), createLambertian(), createOrenNayar0(), createOrenNayar20(), createPlastic(), createSubstrate(), UberMaterial::GetBSDF(), TranslucentMaterial::GetBSDF(), SubsurfaceMaterial::GetBSDF(), SubstrateMaterial::GetBSDF(), PlasticMaterial::GetBSDF(), MixMaterial::GetBSDF(), MirrorMaterial::GetBSDF(), MetalMaterial::GetBSDF(), MeasuredMaterial::GetBSDF(), MatteMaterial::GetBSDF(), KdSubsurfaceMaterial::GetBSDF(), GlassMaterial::GetBSDF(), SubsurfaceMaterial::GetBSSRDF(), KdSubsurfaceMaterial::GetBSSRDF(), main(), and SHComputeBSDFMatrix().

#define MAX_BxDFS   8

Definition at line 184 of file reflection.h.

Referenced by BSDF::Add().

---

Enumeration Type Documentation

enum BxDFType

Enumerator:

BSDF_REFLECTION
BSDF_TRANSMISSION
BSDF_DIFFUSE
BSDF_GLOSSY
BSDF_SPECULAR
BSDF_ALL_TYPES
BSDF_ALL_REFLECTION
BSDF_ALL_TRANSMISSION
BSDF_ALL

Definition at line 100 of file reflection.h.

---

Function Documentation

float AbsCosTheta

(

const Vector &

w

)

[inline]

Definition at line 68 of file reflection.h.

References Vector::z.

Referenced by Anisotropic::D(), Blinn::D(), FresnelBlend::f(), Microfacet::f(), OrenNayar::f(), Microfacet::G(), FresnelBlend::Pdf(), Anisotropic::Pdf(), Blinn::Pdf(), BxDF::Pdf(), BxDF::rho(), Anisotropic::Sample_f(), SpecularTransmission::Sample_f(), and SpecularReflection::Sample_f().

Point BRDFRemap	(	const Vector &	wo,
		const Vector &	wi
	)

Definition at line 239 of file reflection.cpp.

References CosTheta(), M_PI, SinTheta(), and SphericalPhi().

Referenced by IrregIsotropicBRDF::f(), and MeasuredMaterial::MeasuredMaterial().

float CosPhi

(

const Vector &

w

)

[inline]

Definition at line 79 of file reflection.h.

References Clamp(), SinTheta(), and Vector::x.

Referenced by RegularHalfangleBRDF::f(), and OrenNayar::f().

float CosTheta

(

const Vector &

w

)

[inline]

Definition at line 67 of file reflection.h.

References Vector::z.

Referenced by BRDFRemap(), RegularHalfangleBRDF::f(), SpecularTransmission::Sample_f(), SpecularReflection::Sample_f(), SHComputeBSDFMatrix(), and SinTheta2().

float Fdr

(

float

eta

)

[inline]

Definition at line 55 of file reflection.h.

Referenced by DiffusionReflectance::DiffusionReflectance(), DipoleSubsurfaceIntegrator::Li(), and SubsurfaceFromDiffuse().

Spectrum FrCond	(	float	cosi,
		const Spectrum &	n,
		const Spectrum &	k
	)

Definition at line 62 of file reflection.cpp.

Referenced by FresnelConductor::Evaluate().

Spectrum FrDiel	(	float	cosi,
		float	cost,
		const Spectrum &	etai,
		const Spectrum &	etat
	)

Definition at line 52 of file reflection.cpp.

Referenced by FresnelDielectric::Evaluate().

Spectrum FresnelApproxEta

(

const Spectrum &

intensity

)

Spectrum FresnelApproxK

(

const Spectrum &

intensity

)

bool SameHemisphere	(	const Vector &	w,
		const Vector &	wp
	)			[inline]

Definition at line 93 of file reflection.h.

References Vector::z.

Referenced by FresnelBlend::Pdf(), Microfacet::Pdf(), BxDF::Pdf(), FresnelBlend::Sample_f(), Anisotropic::Sample_f(), Blinn::Sample_f(), and Microfacet::Sample_f().

float SinPhi

(

const Vector &

w

)

[inline]

Definition at line 86 of file reflection.h.

References Clamp(), SinTheta(), and Vector::y.

Referenced by RegularHalfangleBRDF::f(), and OrenNayar::f().

float SinTheta

(

const Vector &

w

)

[inline]

Definition at line 74 of file reflection.h.

References SinTheta2().

Referenced by BRDFRemap(), CosPhi(), RegularHalfangleBRDF::f(), OrenNayar::f(), and SinPhi().

float SinTheta2

(

const Vector &

w

)

[inline]

Definition at line 69 of file reflection.h.

References CosTheta().

Referenced by SpecularTransmission::Sample_f(), and SinTheta().