lux::PrimitiveSet Class Reference

#include <shape.h>

Inheritance diagram for lux::PrimitiveSet:

Collaboration diagram for lux::PrimitiveSet:

Public Member Functions
	PrimitiveSet (boost::shared_ptr< Aggregate > a)
	PrimitiveSet (const vector< boost::shared_ptr< Primitive > > &p)
virtual	~PrimitiveSet ()
virtual BBox	WorldBound () const
virtual bool	CanIntersect () const
virtual bool	Intersect (const Ray &r, Intersection *in) const
virtual bool	IntersectP (const Ray &r) const
virtual bool	CanSample () const
virtual void	Sample (float u1, float u2, float u3, DifferentialGeometry *dg) const
virtual float	Area () const
Private Member Functions
void	initAreas ()
Private Attributes
float	area
vector< float >	areaCDF
vector< boost::shared_ptr < Primitive > >	primitives
BBox	worldbound
boost::shared_ptr< Primitive >	accelerator

Detailed Description

Definition at line 125 of file shape.h.

Constructor & Destructor Documentation

PrimitiveSet::PrimitiveSet ( boost::shared_ptr< Aggregate > a )

Definition at line 49 of file shape.cpp.

References accelerator, initAreas(), and primitives.

PrimitiveSet::PrimitiveSet ( const vector< boost::shared_ptr< Primitive > > & p )

Definition at line 56 of file shape.cpp.

References accelerator, initAreas(), LUX_BUG, LUX_SEVERE, luxError, lux::MakeAccelerator(), p, lux::BBox::pMax, lux::BBox::pMin, primitives, lux::Union(), WorldBound(), and worldbound.

virtual lux::PrimitiveSet::~PrimitiveSet ( ) [inline, virtual]

Definition at line 130 of file shape.h.

Member Function Documentation

virtual float lux::PrimitiveSet::Area ( ) const [inline, virtual]

Returns the area of this primitive.

Reimplemented from lux::Primitive.

Definition at line 159 of file shape.h.

References area.

virtual bool lux::PrimitiveSet::CanIntersect ( ) const [inline, virtual]

Returns whether this primitive can be intersected.

Implements lux::Primitive.

Definition at line 133 of file shape.h.

References primitives.

virtual bool lux::PrimitiveSet::CanSample ( ) const [inline, virtual]

Returns whether this primitive can be sampled.

Implements lux::Primitive.

Definition at line 141 of file shape.h.

References primitives.

void PrimitiveSet::initAreas ( ) [private]

Definition at line 106 of file shape.cpp.

References area, areaCDF, and primitives.

Referenced by PrimitiveSet().

bool PrimitiveSet::Intersect	(	const Ray &	r,
		Intersection *	in
	)			const `[virtual]`

Intersects this primitive with the given ray. If an intersection is found, the ray will (i.e. r.tmax) and all fields in the intersection info will be updated.

Parameters:

	r	The ray to intersect with this primitive.
	in	The destination of the intersection information.

Returns:: Whether an intersection was found.

Reimplemented from lux::Primitive.

Definition at line 77 of file shape.cpp.

References accelerator, lux::BBox::IntersectP(), primitives, and worldbound.

bool PrimitiveSet::IntersectP ( const Ray & r ) const [virtual]

Tests for intersection of this primitive with the given ray.

Parameters:

r

The ray to intersect with this primitive.

Returns:: Whether an intersection was found.

Reimplemented from lux::Primitive.

Definition at line 93 of file shape.cpp.

References accelerator, lux::BBox::IntersectP(), primitives, and worldbound.

virtual void lux::PrimitiveSet::Sample	(	float	u1,
		float	u2,
		float	u3,
		DifferentialGeometry *	dg
	)			const `[inline, virtual]`

Samples a point on this primitive. Only the p, nn, dpdu, dpdv, u and v need to be calculated.

Parameters:

	u1	The point coordinate in the first dimension.
	u2	The point coordinate in the second dimension.
	u3	The subprimitive to sample.
	dg	The destination to store the sampled point in.