bidirectional.cpp File Reference

#include "bidirectional.h"
#include "reflection/bxdf.h"
#include "light.h"
#include "camera.h"
#include "sampling.h"
#include "scene.h"
#include "paramset.h"
#include "dynload.h"

Include dependency graph for integrators/bidirectional.cpp:

Go to the source code of this file.

Classes
struct	BidirVertex
Functions
static int	generateEyePath (const TsPack *tspack, const Scene *scene, BSDF *bsdf, const Sample *sample, const BidirIntegrator &bidir, vector< BidirVertex > &vertices, float directWeight)
static int	generateLightPath (const TsPack *tspack, const Scene *scene, BSDF *bsdf, const Sample *sample, const BidirIntegrator &bidir, vector< BidirVertex > &vertices)
static float	G (float cosins, float coso, float d2)
static bool	visible (const TsPack *tspack, const Scene *scene, const Point &P0, const Point &P1, float *pdf, float *pdfR, SWCSpectrum *f)
static float	weightPath (const vector< BidirVertex > &eye, int nEye, int eyeDepth, const vector< BidirVertex > &light, int nLight, int lightDepth, float pdfLightDirect, bool isLightDirect)
static bool	evalPath (const TsPack *tspack, const Scene *scene, const BidirIntegrator &bidir, vector< BidirVertex > &eye, int nEye, vector< BidirVertex > &light, int nLight, float pdfLightDirect, bool isLightDirect, float *weight, SWCSpectrum *L)
static bool	getLightHit (const TsPack *tspack, const Scene *scene, const BidirIntegrator &bidir, vector< BidirVertex > &eyePath, int length, vector< SWCSpectrum > &Le, vector< float > &weight)
static bool	getEnvironmentLight (const TsPack *tspack, const Scene *scene, const BidirIntegrator &bidir, vector< BidirVertex > &eyePath, int length, float directWeight, vector< SWCSpectrum > &Le, vector< float > &weight, int &nrContribs)
static bool	getDirectLight (const TsPack *tspack, const Scene *scene, const BidirIntegrator &bidir, vector< BidirVertex > &eyePath, int length, const Light *light, float u0, float u1, float portal, float directWeight, const SWCSpectrum &We, const Sample *sample, vector< SWCSpectrum > &Ld, vector< float > &weight)
static bool	getLight (const TsPack *tspack, const Scene *scene, const BidirIntegrator &bidir, vector< BidirVertex > &eyePath, int nEye, vector< BidirVertex > &lightPath, int nLight, float lightDirectPdf, SWCSpectrum *Ll, float *weight)
Variables
static const u_int	passThroughLimit = 10000
static DynamicLoader::RegisterSurfaceIntegrator < BidirIntegrator >	r ("bidirectional")

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Function Documentation

static bool evalPath	(	const TsPack *	tspack,
		const Scene *	scene,
		const BidirIntegrator &	bidir,
		vector< BidirVertex > &	eye,
		int	nEye,
		vector< BidirVertex > &	light,
		int	nLight,
		float	pdfLightDirect,
		bool	isLightDirect,
		float *	weight,
		SWCSpectrum *	L
	)			[static]

Definition at line 412 of file integrators/bidirectional.cpp.

References lux::AbsDot(), lux::SWCSpectrum::Black(), lux::BidirVertex::bsdf, lux::BSDF_SPECULAR, lux::BidirVertex::dAWeight, lux::DistanceSquared(), lux::MachineEpsilon::E(), lux::BidirIntegrator::eyeThreshold, lux::BSDF::f(), lux::BidirVertex::flags, G(), lux::BidirIntegrator::lightThreshold, cimg_library::cimg::max(), lux::BidirIntegrator::maxEyeDepth, lux::BidirIntegrator::maxLightDepth, cimg_library::cimg::min(), lux::BidirVertex::ng, lux::Normalize(), lux::BidirVertex::ns, lux::BidirVertex::p, lux::BSDF::Pdf(), visible(), weightPath(), lux::BidirVertex::wi, and lux::BidirVertex::wo.

Referenced by getDirectLight(), getEnvironmentLight(), getLight(), and getLightHit().

static float G	(	float	cosins,
		float	coso,
		float	d2
	)			[static]

Definition at line 305 of file integrators/bidirectional.cpp.

Referenced by cimg_library::CImg< T >::blur_anisotropic(), evalPath(), lux::Torus::Intersect(), lux::Sphere::Intersect(), lux::Paraboloid::Intersect(), lux::Hyperboloid::Intersect(), lux::Cylinder::Intersect(), lux::Cone::Intersect(), lux::IGIIntegrator::Li(), and cimg_library::CImg< T >::sharpen().

static int generateEyePath	(	const TsPack *	tspack,
		const Scene *	scene,
		BSDF *	bsdf,
		const Sample *	sample,
		const BidirIntegrator &	bidir,
		vector< BidirVertex > &	vertices,
		float	directWeight
	)			[static]

Definition at line 104 of file integrators/bidirectional.cpp.

References lux::AbsDot(), lux::Intersection::arealight, lux::BidirVertex::bsdf, lux::BSDF_ALL, lux::BSDF_SPECULAR, lux::BSDF_TRANSMISSION, lux::TsPack::camera, lux::Camera::ClampRay(), lux::Ray::d, lux::Intersection::dg, lux::BSDF::dgShading, lux::DistanceSquared(), lux::BidirIntegrator::eyeThreshold, lux::BidirVertex::flags, lux::Intersection::GetBSDF(), lux::Sampler::GetLazyValues(), lux::Light::group, lux::Sample::imageX, lux::Sample::imageY, lux::Scene::Intersect(), lux::Camera::IsLensBased(), lux::Intersection::Le(), lux::Sample::lensU, lux::Sample::lensV, lux::Scene::lights, lux::BidirIntegrator::lightThreshold, cimg_library::cimg::max(), cimg_library::cimg::min(), lux::BidirVertex::ng, lux::DifferentialGeometry::nn, lux::BidirVertex::ns, lux::BidirVertex::p, p, lux::DifferentialGeometry::p, passThroughLimit, lux::BSDF::Pdf(), lux::r, lux::BSDF::Sample_f(), lux::BidirIntegrator::sampleEyeOffset, lux::Sample::sampler, lux::TsPack::time, lux::Ray::time, lux::BidirVertex::wi, and lux::BidirVertex::wo.

Referenced by lux::BidirIntegrator::Li().

static int generateLightPath	(	const TsPack *	tspack,
		const Scene *	scene,
		BSDF *	bsdf,
		const Sample *	sample,
		const BidirIntegrator &	bidir,
		vector< BidirVertex > &	vertices
	)			[static]

Definition at line 214 of file integrators/bidirectional.cpp.

References lux::AbsDot(), lux::BidirVertex::bsdf, lux::BSDF_ALL, lux::BSDF_SPECULAR, lux::BSDF_TRANSMISSION, lux::Ray::d, lux::Intersection::dg, lux::BSDF::dgShading, lux::DistanceSquared(), lux::BidirIntegrator::eyeThreshold, lux::BidirVertex::flags, lux::Intersection::GetBSDF(), lux::Sampler::GetLazyValues(), lux::Scene::Intersect(), lux::BidirIntegrator::lightThreshold, cimg_library::cimg::max(), cimg_library::cimg::min(), lux::BidirVertex::ng, lux::DifferentialGeometry::nn, lux::BidirVertex::ns, p, lux::BidirVertex::p, lux::DifferentialGeometry::p, passThroughLimit, lux::BSDF::Pdf(), lux::BSDF::Sample_f(), lux::BidirIntegrator::sampleLightOffset, lux::Sample::sampler, lux::TsPack::time, lux::Ray::time, lux::BidirVertex::wi, and lux::BidirVertex::wo.

Referenced by lux::BidirIntegrator::Li().

static bool getDirectLight	(	const TsPack *	tspack,
		const Scene *	scene,
		const BidirIntegrator &	bidir,
		vector< BidirVertex > &	eyePath,
		int	length,
		const Light *	light,
		float	u0,
		float	u1,
		float	portal,
		float	directWeight,
		const SWCSpectrum &	We,
		const Sample *	sample,
		vector< SWCSpectrum > &	Ld,
		vector< float > &	weight
	)			[static]

Definition at line 626 of file integrators/bidirectional.cpp.

References lux::AbsDot(), lux::Sample::AddContribution(), lux::BidirVertex::bsdf, lux::TsPack::camera, lux::BidirVertex::dAWeight, lux::BSDF::dgShading, evalPath(), lux::SWCSpectrum::Filter(), lux::Camera::GetSamplePosition(), lux::Light::group, lux::Light::IsDeltaLight(), lux::Light::IsEnvironmental(), lux::BidirIntegrator::lightBufferId, lux::Scene::lights, lux::BidirVertex::ng, lux::DifferentialGeometry::nn, lux::BidirVertex::ns, lux::DifferentialGeometry::p, lux::BidirVertex::p, lux::Light::Sample_L(), lux::SWCSpectrum::ToXYZ(), and lux::BidirVertex::wi.

Referenced by lux::BidirIntegrator::Li().

static bool getEnvironmentLight	(	const TsPack *	tspack,
		const Scene *	scene,
		const BidirIntegrator &	bidir,
		vector< BidirVertex > &	eyePath,
		int	length,
		float	directWeight,
		vector< SWCSpectrum > &	Le,
		vector< float > &	weight,
		int &	nrContribs
	)			[static]

Definition at line 580 of file integrators/bidirectional.cpp.

References lux::AbsDot(), lux::BidirVertex::bsdf, lux::DistanceSquared(), evalPath(), lux::Light::group, lux::Light::IsEnvironmental(), lux::Light::Le(), lux::Scene::lights, lux::BidirVertex::ng, lux::BidirVertex::ns, lux::BidirVertex::p, p, lux::TsPack::time, lux::Ray::time, and lux::BidirVertex::wo.

Referenced by lux::BidirIntegrator::Li().

static bool getLight	(	const TsPack *	tspack,
		const Scene *	scene,
		const BidirIntegrator &	bidir,
		vector< BidirVertex > &	eyePath,
		int	nEye,
		vector< BidirVertex > &	lightPath,
		int	nLight,
		float	lightDirectPdf,
		SWCSpectrum *	Ll,
		float *	weight
	)			[static]

Definition at line 678 of file integrators/bidirectional.cpp.

References evalPath().

Referenced by lux::BidirIntegrator::Li().

static bool getLightHit	(	const TsPack *	tspack,
		const Scene *	scene,
		const BidirIntegrator &	bidir,
		vector< BidirVertex > &	eyePath,
		int	length,
		vector< SWCSpectrum > &	Le,
		vector< float > &	weight
	)			[static]

Definition at line 558 of file integrators/bidirectional.cpp.

References evalPath().

Referenced by lux::BidirIntegrator::Li().

static bool visible	(	const TsPack *	tspack,
		const Scene *	scene,
		const Point &	P0,
		const Point &	P1,
		float *	pdf,
		float *	pdfR,
		SWCSpectrum *	f
	)			[static]

Definition at line 311 of file integrators/bidirectional.cpp.

References lux::VisibilityTester::SetSegment(), lux::VisibilityTester::TestOcclusion(), and lux::TsPack::time.

Referenced by evalPath(), main(), and lux::LuxGuiApp::ProcessCommandLine().

static float weightPath	(	const vector< BidirVertex > &	eye,
		int	nEye,
		int	eyeDepth,
		const vector< BidirVertex > &	light,
		int	nLight,
		int	lightDepth,
		float	pdfLightDirect,
		bool	isLightDirect
	)			[static]

Definition at line 320 of file integrators/bidirectional.cpp.

References lux::BSDF_SPECULAR, cimg_library::cimg::max(), and p.

Referenced by evalPath().

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Variable Documentation

const u_int passThroughLimit = 10000 [static]

Definition at line 35 of file integrators/bidirectional.cpp.

Referenced by generateEyePath(), and generateLightPath().

DynamicLoader::RegisterSurfaceIntegrator<BidirIntegrator> r("bidirectional") [static]