mc.cpp File Reference

#include "pbrt.h"
#include "geometry.h"
#include "shape.h"
#include "mc.h"
#include "volume.h"

Go to the source code of this file.

Functions
void	ComputeStep1dCDF (float *f, int nSteps, float *c, float *cdf)
float	SampleStep1d (float *f, float *cdf, float c, int nSteps, float u, float *pdf)
void	RejectionSampleDisk (float *x, float *y)
COREDLL Vector	UniformSampleHemisphere (float u1, float u2)
COREDLL float	UniformHemispherePdf (float theta, float phi)
COREDLL Vector	UniformSampleSphere (float u1, float u2)
COREDLL float	UniformSpherePdf ()
COREDLL void	UniformSampleDisk (float u1, float u2, float *x, float *y)
COREDLL void	ConcentricSampleDisk (float u1, float u2, float *dx, float *dy)
COREDLL void	UniformSampleTriangle (float u1, float u2, float *u, float *v)
COREDLL float	UniformConePdf (float cosThetaMax)
Vector	UniformSampleCone (float u1, float u2, float costhetamax)
COREDLL Vector	UniformSampleCone (float u1, float u2, float costhetamax, const Vector &x, const Vector &y, const Vector &z)
COREDLL Vector	SampleHG (const Vector &w, float g, float u1, float u2)
COREDLL float	HGPdf (const Vector &w, const Vector &wp, float g)

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Function Documentation

COREDLL void ComputeStep1dCDF	(	float *	f,
		int	nSteps,
		float *	c,
		float *	cdf
	)

Definition at line 31 of file mc.cpp.

Referenced by Distribution1D::Distribution1D(), IGIIntegrator::Preprocess(), ExPhotonIntegrator::Preprocess(), and WeightedSampleOneLight().

COREDLL void ConcentricSampleDisk	(	float	u1,
		float	u2,
		float *	dx,
		float *	dy
	)

Definition at line 91 of file mc.cpp.

References M_PI.

Referenced by CosineSampleHemisphere(), PerspectiveCamera::GenerateRay(), OrthoCamera::GenerateRay(), Disk::Sample(), InfiniteAreaLight::Sample_L(), and DistantLight::Sample_L().

COREDLL float HGPdf	(	const Vector &	w,
		const Vector &	wp,
		float	g
	)

Definition at line 178 of file mc.cpp.

References PhaseHG().

void RejectionSampleDisk	(	float *	x,
		float *	y
	)

Definition at line 53 of file mc.cpp.

References RandomFloat().

COREDLL Vector SampleHG	(	const Vector &	w,
		float	g,
		float	u1,
		float	u2
	)

Definition at line 161 of file mc.cpp.

References CoordinateSystem(), M_PI, and SphericalDirection().

COREDLL float SampleStep1d	(	float *	f,
		float *	cdf,
		float	c,
		int	nSteps,
		float	u,
		float *	pdf
	)

Definition at line 43 of file mc.cpp.

Referenced by IGIIntegrator::Preprocess(), ExPhotonIntegrator::Preprocess(), and WeightedSampleOneLight().

COREDLL float UniformConePdf

(

float

cosThetaMax

)

Definition at line 141 of file mc.cpp.

References M_PI.

Referenced by ExPhotonIntegrator::Li(), Sphere::Pdf(), SpotLight::Sample_L(), and ProjectionLight::Sample_L().

COREDLL float UniformHemispherePdf	(	float	theta,
		float	phi
	)

Definition at line 70 of file mc.cpp.

References INV_TWOPI.

COREDLL Vector UniformSampleCone	(	float	u1,
		float	u2,
		float	costhetamax,
		const Vector &	x,
		const Vector &	y,
		const Vector &	z
	)

Definition at line 153 of file mc.cpp.

References Lerp(), and M_PI.

Vector UniformSampleCone	(	float	u1,
		float	u2,
		float	costhetamax
	)

Definition at line 144 of file mc.cpp.

References Lerp(), and M_PI.

Referenced by ExPhotonIntegrator::Li(), Sphere::Sample(), SpotLight::Sample_L(), and ProjectionLight::Sample_L().

COREDLL void UniformSampleDisk	(	float	u1,
		float	u2,
		float *	x,
		float *	y
	)

Definition at line 84 of file mc.cpp.

References M_PI.

COREDLL Vector UniformSampleHemisphere	(	float	u1,
		float	u2
	)

Definition at line 62 of file mc.cpp.

References M_PI.

Referenced by BxDF::rho().

COREDLL Vector UniformSampleSphere	(	float	u1,
		float	u2
	)

Definition at line 73 of file mc.cpp.

References M_PI.

Referenced by Sphere::Sample(), PointLight::Sample_L(), InfiniteAreaLightIS::Sample_L(), InfiniteAreaLight::Sample_L(), GonioPhotometricLight::Sample_L(), and AreaLight::Sample_L().

COREDLL void UniformSampleTriangle	(	float	u1,
		float	u2,
		float *	u,
		float *	v
	)

Definition at line 135 of file mc.cpp.

Referenced by Triangle::Sample().

COREDLL float UniformSpherePdf

(

)

Definition at line 81 of file mc.cpp.

References M_PI.

Referenced by PointLight::Sample_L(), InfiniteAreaLight::Sample_L(), and GonioPhotometricLight::Sample_L().