volume.h File Reference

#include "pbrt.h"
#include "spectrum.h"
#include "geometry.h"
#include "transform.h"
#include "integrator.h"

Go to the source code of this file.

Classes
class	VolumeRegion
class	DensityRegion
class	AggregateVolume
class	VolumeIntegrator
Functions
float	PhaseIsotropic (const Vector &w, const Vector &wp)
float	PhaseRayleigh (const Vector &w, const Vector &wp)
float	PhaseMieHazy (const Vector &w, const Vector &wp)
float	PhaseMieMurky (const Vector &w, const Vector &wp)
float	PhaseHG (const Vector &w, const Vector &wp, float g)
float	PhaseSchlick (const Vector &w, const Vector &wp, float g)
bool	GetVolumeScatteringProperties (const string &name, Spectrum *sigma_a, Spectrum *sigma_prime_s)
void	SubsurfaceFromDiffuse (const Spectrum &Kd, float meanPathLength, float eta, Spectrum *sigma_a, Spectrum *sigma_prime_s)

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Function Documentation

bool GetVolumeScatteringProperties	(	const string &	name,
		Spectrum *	sigma_a,
		Spectrum *	sigma_prime_s
	)

Definition at line 253 of file volume.cpp.

References RGBSpectrum::FromRGB().

Referenced by CreateSubsurfaceMaterial().

float PhaseHG	(	const Vector &	w,
		const Vector &	wp,
		float	g
	)

Definition at line 142 of file volume.cpp.

References Dot(), and M_PI.

Referenced by HGPdf(), DensityRegion::p(), and HomogeneousVolumeDensity::p().

float PhaseIsotropic	(	const Vector &	w,
		const Vector &	wp
	)

Definition at line 119 of file volume.cpp.

References M_PI.

float PhaseMieHazy	(	const Vector &	w,
		const Vector &	wp
	)

Definition at line 130 of file volume.cpp.

References Dot(), and M_PI.

float PhaseMieMurky	(	const Vector &	w,
		const Vector &	wp
	)

Definition at line 136 of file volume.cpp.

References Dot(), and M_PI.

float PhaseRayleigh	(	const Vector &	w,
		const Vector &	wp
	)

Definition at line 124 of file volume.cpp.

References Dot(), and M_PI.

float PhaseSchlick	(	const Vector &	w,
		const Vector &	wp,
		float	g
	)

Definition at line 149 of file volume.cpp.

References Dot(), and M_PI.

void SubsurfaceFromDiffuse	(	const Spectrum &	Kd,
		float	meanPathLength,
		float	eta,
		Spectrum *	sigma_a,
		Spectrum *	sigma_prime_s
	)

Definition at line 266 of file volume.cpp.

References Fdr(), RGBSpectrum::FromRGB(), RdToAlphap(), and RGBSpectrum::ToRGB().

Referenced by KdSubsurfaceMaterial::GetBSSRDF().