Ray generator class. Generates rays for both the GPU and the CPU. More...

#include <RayGen.hpp>

Public Member Functions
	RayGen (S32 maxBatchSize=8 1024 1024)
	Constructor. More...

void	primary (RayBuffer &orays, const Vec3f &origin, const Mat4f &nscreenToWorld, S32 w, S32 h, float maxDist)
	Generates primary rays on the GPU. More...

bool	shadow (RayBuffer &orays, RayBuffer &irays, int numSamples, const Vec3f &lightPos, float lightRadius, bool &newBatch, U32 randomSeed=0)
	Generates shadow rays on the GPU. Batches rays if necessary. More...

bool	ao (RayBuffer &orays, RayBuffer &irays, Scene &scene, int numSamples, float maxDist, bool &newBatch, U32 randomSeed=0)
	Generates ao rays on the GPU. Batches rays if necessary. More...

void	primaryCPU (RayBuffer &orays, const Vec3f &origin, const Mat4f &nscreenToWorld, S32 w, S32 h, float maxDist)
	Generates primary rays on the CPU. More...

bool	shadowCPU (RayBuffer &orays, RayBuffer &irays, int numSamples, const Vec3f &lightPos, float lightRadius, bool &newBatch, U32 randomSeed=0)
	Generates shadow rays on the CPU. Batches rays if necessary. More...

bool	aoCPU (RayBuffer &orays, RayBuffer &irays, Scene &scene, int numSamples, float maxDist, bool &newBatch, U32 randomSeed=0)
	Generates ao rays on the CPU. Batches rays if necessary. More...

bool	random (RayBuffer &orays, const AABB &bounds, int numRays, bool closestHit, bool PosDir=false, U32 randomSeed=0)
	Generates random rays. Used for various tests. More...

bool	random (RayBuffer &orays, const AABB &bounds, int numRays, bool closestHit, bool PosDir, bool &newBatch, U32 randomSeed=0)
	Generates random rays. More...

bool	randomReflection (RayBuffer &orays, RayBuffer &irays, Scene &scene, int numSamples, float maxDist, bool &newBatch, U32 randomSeed=0)
	Generates random reflection rays. More...

Detailed Description

Ray generator class. Generates rays for both the GPU and the CPU.

Definition at line 47 of file RayGen.hpp.

Constructor & Destructor Documentation

FW::RayGen::RayGen ( S32 maxBatchSize = 8*1024*1024 )

Constructor.

Parameters

[in] maxBatchSize Maximum number of secondary rays in one batch.

Definition at line 35 of file RayGen.cpp.

Member Function Documentation

bool FW::RayGen::ao	(	RayBuffer &	orays,
		RayBuffer &	irays,
		Scene &	scene,
		int	numSamples,
		float	maxDist,
		bool &	newBatch,
		U32	randomSeed = `0`
	)

Generates ao rays on the GPU. Batches rays if necessary.

Parameters

[in,out]	orays	Generated rays.
[in]	irays	Source rays.
[in]	scene	Source scene.
[in]	numSamples	Number of ao rays for each source ray.
[in]	maxDist	Maximum length of generated rays.
[in,out]	newBatch	Batching flag. [aram[in] randomSeed Random seed.

Returns: True if batch contiunes.

Definition at line 196 of file RayGen.cpp.

bool FW::RayGen::aoCPU	(	RayBuffer &	orays,
		RayBuffer &	irays,
		Scene &	scene,
		int	numSamples,
		float	maxDist,
		bool &	newBatch,
		U32	randomSeed = `0`
	)

Generates ao rays on the CPU. Batches rays if necessary.

Parameters

[in,out]	orays	Generated rays.
[in]	irays	Source rays.
[in]	scene	Source scene.
[in]	numSamples	Number of ao rays for each source ray.
[in]	maxDist	Maximum length of generated rays.
[in,out]	newBatch	Batching flag.
[in]	randomSeed	Random seed.

Returns: True if batch contiunes.

Definition at line 232 of file RayGen.cpp.

void FW::RayGen::primary	(	RayBuffer &	orays,
		const Vec3f &	origin,
		const Mat4f &	nscreenToWorld,
		S32	w,
		S32	h,
		float	maxDist
	)

Generates primary rays on the GPU.

Parameters

[in,out]	Generated	rays.
[in]	origin	Point from which rays will be cast.
[in]	nscreenToWorld	Transformation view matrix.
[in]	w	Horizontal resolution.
[in]	h	Vertical resolution.
[in]	maxDist	Maximum length of generated rays.

Definition at line 44 of file RayGen.cpp.

void FW::RayGen::primaryCPU	(	RayBuffer &	orays,
		const Vec3f &	origin,
		const Mat4f &	nscreenToWorld,
		S32	w,
		S32	h,
		float	maxDist
	)

Generates primary rays on the CPU.

Parameters

[in,out]	Generated	rays.
[in]	origin	Point from which rays will be cast.
[in]	nscreenToWorld	Transformation view matrix.
[in]	w	Horizontal resolution.
[in]	h	Vertical resolution.
[in]	maxDist	Maximum length of generated rays.

Definition at line 74 of file RayGen.cpp.

bool FW::RayGen::random	(	RayBuffer &	orays,
		const AABB &	bounds,
		int	numRays,
		bool	closestHit,
		bool	PosDir = `false`,
		U32	randomSeed = `0`
	)

Generates random rays. Used for various tests.

Parameters

[in,out]	orays	Generated rays.
[in]	bounds	Box in which rays will be generated.
[in]	numRays	Number of generated rays.
[in]	closestHit	Flag whether rays require closest hit.
[in]	PosDir	If false, direction of generated rays will be absolute position in the scene.
[in]	randomSeed	Random seed.

Returns: True if batch continues.

Definition at line 340 of file RayGen.cpp.

bool FW::RayGen::random	(	RayBuffer &	orays,
		const AABB &	bounds,
		int	numRays,
		bool	closestHit,
		bool	PosDir,
		bool &	newBatch,
		U32	randomSeed = `0`
	)

Generates random rays.

Parameters

[in,out]	orays	Generated rays.
[in]	bounds	Box in which rays will be generated.
[in]	numRays	Number of generated rays.
[in]	closestHit	Flag whether rays require closest hit.
[in]	PosDir	If false, direction of generated rays will be absolute position in the scene.
[in,out]	newBatch	Batching flag.
[in]	randomSeed	Random seed.

Returns: True if batch continues.

Definition at line 346 of file RayGen.cpp.

bool FW::RayGen::randomReflection	(	RayBuffer &	orays,
		RayBuffer &	irays,
		Scene &	scene,
		int	numSamples,
		float	maxDist,
		bool &	newBatch,
		U32	randomSeed = `0`
	)

Generates random reflection rays.

Parameters

[in,out]	orays	Generated rays.
[in]	irays	Source rays.
[in]	scene	Source scene, necessary for normals.
[in]	numSamples	Number of reflection rays for each source ray.
[in]	maxDist	Maximum length of reflection rays.
[in,out]	newBatch	Batching flag.
[in]	randomSeed	Random seed.

Returns: True if batch continues.

Definition at line 374 of file RayGen.cpp.

bool FW::RayGen::shadow	(	RayBuffer &	orays,
		RayBuffer &	irays,
		int	numSamples,
		const Vec3f &	lightPos,
		float	lightRadius,
		bool &	newBatch,
		U32	randomSeed = `0`
	)

Generates shadow rays on the GPU. Batches rays if necessary.

Parameters

[in,out]	orays	Generated rays.
[in]	irays	Source rays.
[in]	numSamples	Number of shadow rays for each source ray.
[in]	lightPos	Position of a light source that casts these shadow rays.
[in]	lightRadius	Radius of the light source.
[in,out]	newBatch	Batching flag.
[in]	randomSeed	Random seed.

Returns: True if batch continues.

Definition at line 112 of file RayGen.cpp.

bool FW::RayGen::shadowCPU	(	RayBuffer &	orays,
		RayBuffer &	irays,
		int	numSamples,
		const Vec3f &	lightPos,
		float	lightRadius,
		bool &	newBatch,
		U32	randomSeed = `0`
	)

Generates shadow rays on the CPU. Batches rays if necessary.

Parameters

[in,out]	orays	Generated rays.
[in]	irays	Source rays.
[in]	numSamples	Number of shadow rays for each source ray.
[in]	lightPos	Position of a light source that casts these shadow rays.
[in]	lightRadius	Radius of the light source.
[in,out]	newBatch	Batching flag.
[in]	randomSeed	Random seed.

Returns: True if batch continues.

Definition at line 150 of file RayGen.cpp.

The documentation for this class was generated from the following files:

src/rt/ray/RayGen.hpp
src/rt/ray/RayGen.cpp

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation