transport.cpp File Reference

#include "transport.h"
#include "scene.h"

Go to the source code of this file.

Functions
COREDLL Spectrum	UniformSampleAllLights (const Scene *scene, const Point &p, const Normal &n, const Vector &wo, BSDF *bsdf, const Sample *sample, int *lightSampleOffset, int *bsdfSampleOffset, int *bsdfComponentOffset)
COREDLL Spectrum	UniformSampleOneLight (const Scene *scene, const Point &p, const Normal &n, const Vector &wo, BSDF *bsdf, const Sample *sample, int lightSampleOffset, int lightNumOffset, int bsdfSampleOffset, int bsdfComponentOffset)
COREDLL Spectrum	WeightedSampleOneLight (const Scene *scene, const Point &p, const Normal &n, const Vector &wo, BSDF *bsdf, const Sample *sample, int lightSampleOffset, int lightNumOffset, int bsdfSampleOffset, int bsdfComponentOffset, float *&avgY, float *&avgYsample, float *&cdf, float &overallAvgY)
Spectrum	EstimateDirect (const Scene *scene, const Light *light, const Point &p, const Normal &n, const Vector &wo, BSDF *bsdf, const Sample *sample, int lightSamp, int bsdfSamp, int bsdfComponent, u_int sampleNum)

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Function Documentation

Spectrum EstimateDirect	(	const Scene *	scene,
		const Light *	light,
		const Point &	p,
		const Normal &	n,
		const Vector &	wo,
		BSDF *	bsdf,
		const Sample *	sample,
		int	lightSamp,
		int	bsdfSamp,
		int	bsdfComponent,
		u_int	sampleNum
	)

Definition at line 123 of file transport.cpp.

References AbsDot(), Spectrum::Black(), BSDF_ALL, BSDF_SPECULAR, BSDF::f(), Primitive::GetAreaLight(), Scene::Intersect(), Light::IsDeltaLight(), Light::Le(), Intersection::Le(), Integrator::Li(), Sample::oneD, Light::Pdf(), BSDF::Pdf(), PowerHeuristic(), Intersection::primitive, RandomFloat(), BSDF::Sample_f(), Light::Sample_L(), Scene::Transmittance(), VisibilityTester::Transmittance(), Sample::twoD, and VisibilityTester::Unoccluded().

Referenced by UniformSampleAllLights(), UniformSampleOneLight(), and WeightedSampleOneLight().

COREDLL Spectrum UniformSampleAllLights	(	const Scene *	scene,
		const Point &	p,
		const Normal &	n,
		const Vector &	wo,
		BSDF *	bsdf,
		const Sample *	sample,
		int *	lightSampleOffset,
		int *	bsdfSampleOffset,
		int *	bsdfComponentOffset
	)

Definition at line 31 of file transport.cpp.

References EstimateDirect(), Scene::lights, and Sample::n2D.

Referenced by PhotonIntegrator::Li(), IrradianceCache::Li(), IGIIntegrator::Li(), ExPhotonIntegrator::Li(), and DirectLighting::Li().

COREDLL Spectrum UniformSampleOneLight	(	const Scene *	scene,
		const Point &	p,
		const Normal &	n,
		const Vector &	wo,
		BSDF *	bsdf,
		const Sample *	sample,
		int	lightSampleOffset,
		int	lightNumOffset,
		int	bsdfSampleOffset,
		int	bsdfComponentOffset
	)

Definition at line 51 of file transport.cpp.

References EstimateDirect(), Floor2Int(), Scene::lights, Sample::oneD, and RandomFloat().

Referenced by IrradianceCache::IndirectLo(), PathIntegrator::Li(), DirectLighting::Li(), BidirIntegrator::Li(), and WeightedSampleOneLight().

COREDLL Spectrum WeightedSampleOneLight	(	const Scene *	scene,
		const Point &	p,
		const Normal &	n,
		const Vector &	wo,
		BSDF *	bsdf,
		const Sample *	sample,
		int	lightSampleOffset,
		int	lightNumOffset,
		int	bsdfSampleOffset,
		int	bsdfComponentOffset,
		float *&	avgY,
		float *&	avgYsample,
		float *&	cdf,
		float &	overallAvgY
	)

Definition at line 71 of file transport.cpp.

References ComputeStep1dCDF(), EstimateDirect(), ExponentialAverage(), Float2Int(), Scene::lights, Sample::oneD, SampleStep1d(), UniformSampleOneLight(), and Spectrum::y().

Referenced by DirectLighting::Li().