lux::MeshWaldTriangle Class Reference

#include <mesh.h>

Inheritance diagram for lux::MeshWaldTriangle:

Collaboration diagram for lux::MeshWaldTriangle:

Public Member Functions
	MeshWaldTriangle (const Mesh *m, int n)
virtual	~MeshWaldTriangle ()
virtual bool	Intersect (const Ray &ray, Intersection *isect) const
virtual bool	IntersectP (const Ray &ray) const
virtual void	Sample (float u1, float u2, float u3, DifferentialGeometry *dg) const
virtual bool	isDegenerate () const
Private Types
enum	IntersectionType { DOMINANT_X, DOMINANT_Y, DOMINANT_Z, DEGENERATE }
Private Attributes
IntersectionType	intersectionType
float	nu
float	nv
float	nd
float	bnu
float	bnv
float	bnd
float	cnu
float	cnv
float	cnd
Vector	dpdu
Vector	dpdv
Normal	normalizedNormal

Detailed Description

Definition at line 164 of file mesh.h.

Member Enumeration Documentation

enum lux::MeshWaldTriangle::IntersectionType [private]

Enumerator:

DOMINANT_X
DOMINANT_Y
DOMINANT_Z
DEGENERATE

Definition at line 179 of file mesh.h.

Constructor & Destructor Documentation

MeshWaldTriangle::MeshWaldTriangle	(	const Mesh *	m,
		int	n
	)

Definition at line 29 of file meshwaldtriangle.cpp.

References bnd, bnu, bnv, cnd, cnu, cnv, lux::CoordinateSystem(), lux::Cross(), DEGENERATE, lux::DistanceSquared(), DOMINANT_X, DOMINANT_Y, DOMINANT_Z, dpdu, dpdv, lux::MeshBaryTriangle::GetUVs(), intersectionType, lux::MeshBaryTriangle::mesh, nd, lux::Normalize(), normalizedNormal, nu, nv, lux::Mesh::p, cimg_library::cimg::swap(), lux::MeshBaryTriangle::v, lux::Point::x, lux::Normal::x, lux::Point::y, lux::Normal::y, lux::Point::z, and lux::Normal::z.

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

Definition at line 168 of file mesh.h.

Member Function Documentation

bool MeshWaldTriangle::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::MeshBaryTriangle.

Definition at line 156 of file meshwaldtriangle.cpp.

References bnd, bnu, bnv, cnd, cnu, cnv, lux::Ray::d, lux::Intersection::dg, DOMINANT_X, DOMINANT_Y, DOMINANT_Z, dpdu, dpdv, lux::Shape::GetMaterial(), lux::MeshBaryTriangle::GetUVs(), intersectionType, lux::Ray::maxt, lux::MeshBaryTriangle::mesh, lux::Ray::mint, nd, normalizedNormal, nu, nv, lux::Ray::o, lux::Mesh::p, lux::Intersection::Set(), lux::DifferentialGeometry::triangleBaryCoords, lux::MeshBaryTriangle::v, lux::Shape::WorldToObject, lux::Vector::x, lux::Point::x, lux::Vector::y, lux::Point::y, lux::Vector::z, and lux::Point::z.

bool MeshWaldTriangle::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::MeshBaryTriangle.

Definition at line 238 of file meshwaldtriangle.cpp.

References bnd, bnu, bnv, cnd, cnu, cnv, lux::Ray::d, DOMINANT_X, DOMINANT_Y, DOMINANT_Z, intersectionType, lux::Ray::maxt, lux::Ray::mint, nd, nu, nv, lux::Ray::o, lux::Vector::x, lux::Point::x, lux::Vector::y, lux::Point::y, lux::Vector::z, and lux::Point::z.

bool MeshWaldTriangle::isDegenerate ( ) const [virtual]

Reimplemented from lux::MeshBaryTriangle.

Definition at line 318 of file meshwaldtriangle.cpp.

References DEGENERATE, and intersectionType.

Referenced by lux::Mesh::Refine().

void MeshWaldTriangle::Sample	(	float	u1,
		float	u2,
		float	u3,
		DifferentialGeometry *	dg
	)			const `[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.