MeshTriangle Class Reference

Basic representation of a MeshTriangle with optional UV coordinates. More...

#include <MeshTriangle.h>

Inheritance diagram for MeshTriangle:

List of all members.

Public Member Functions

Constructors

MeshTriangle ()

MeshTriangle (unsigned A_, unsigned B_, unsigned C_, unsigned nA_=0, unsigned nB_=0, unsigned nC_=0, unsigned tA_=0, unsigned tB_=0, unsigned tC_=0)

MeshTriangle (const MeshTriangle &copy)

Core functionality

virtual real_t getIntersection (const Ray &ray, SurfacePoint &pt)

Initializes this triangle for intersection tests.

virtual AABB getAABB () const

Vector3 getNormal () const

Vector3 getBaryocentricCoords (const Point3 &p) const

Sampling functionality

void getRandomPoint (SurfacePoint &pt)

Point3 getPosition (const UV &uv)

real_t getSurfaceArea () const

Public Attributes

unsigned A

unsigned B

unsigned C

unsigned data [3]

unsigned nA

unsigned nB

unsigned nC

unsigned nData [3]

unsigned tA

unsigned tB

unsigned tC

unsigned tData [3]

Fast-access public data

union {

   struct {

      unsigned   A

      unsigned   B

      unsigned   C

   }

   unsigned   data [3]

};

union {

   struct {

      unsigned   nA

      unsigned   nB

      unsigned   nC

   }

   unsigned   nData [3]

};

union {

   struct {

      unsigned   tA

      unsigned   tB

      unsigned   tC

   }

   unsigned   tData [3]

};

Mesh * mesh

Detailed Description

Basic representation of a MeshTriangle with optional UV coordinates.

Author:: Travis Fischer (fisch0920@gmail.com)
Nong Li (nongli@gmail.com)

Date:: Spring 2008

See also:: also Triangle.h which defines a Triangle class which derives from Shape and differs from MeshTriangle in that it is a standalone Shape and doesn't depend on a parent Mesh to exist

Definition at line 30 of file MeshTriangle.h.

Constructor & Destructor Documentation

MeshTriangle::MeshTriangle ( ) [inline]

Definition at line 67 of file MeshTriangle.h.

MeshTriangle::MeshTriangle	(	unsigned	A_,
		unsigned	B_,
		unsigned	C_,
		unsigned	nA_ = `0`,
		unsigned	nB_ = `0`,
		unsigned	nC_ = `0`,
		unsigned	tA_ = `0`,
		unsigned	tB_ = `0`,
		unsigned	tC_ = `0`
	)			`[inline]`

Definition at line 73 of file MeshTriangle.h.

MeshTriangle::MeshTriangle ( const MeshTriangle & copy ) [inline]

Definition at line 81 of file MeshTriangle.h.

Member Function Documentation

real_t MeshTriangle::getIntersection	(	const Ray &	ray,
		SurfacePoint &	pt
	)			`[virtual]`

Initializes this triangle for intersection tests.

Implements Intersectable.

Reimplemented in MeshTriangleFast.

Definition at line 90 of file MeshTriangle.cpp.

AABB MeshTriangle::getAABB ( ) const [virtual]

Implements Intersectable.

Definition at line 184 of file MeshTriangle.cpp.

Vector3 MeshTriangle::getNormal ( ) const

Definition at line 172 of file MeshTriangle.cpp.

Vector3 MeshTriangle::getBaryocentricCoords ( const Point3 & p ) const

Definition at line 342 of file MeshTriangle.cpp.

void MeshTriangle::getRandomPoint ( SurfacePoint & pt )

Returns:: a point chosen uniformly random over the surface of this shape in 'pt'

Note:: the probability density of selecting this point is assumed to be (1.0 / getSurfaceArea())

Definition at line 279 of file MeshTriangle.cpp.

Point3 MeshTriangle::getPosition ( const UV & uv )

Returns:: the point on the surface of this shape corresponding to the given UV coordinates

Definition at line 297 of file MeshTriangle.cpp.

real_t MeshTriangle::getSurfaceArea ( ) const

Returns:: the total surface area of this shape

Definition at line 333 of file MeshTriangle.cpp.

Member Data Documentation

unsigned MeshTriangle::A

Definition at line 38 of file MeshTriangle.h.

unsigned MeshTriangle::B

Definition at line 38 of file MeshTriangle.h.

unsigned MeshTriangle::C

Definition at line 38 of file MeshTriangle.h.

unsigned MeshTriangle::data[3]

Definition at line 41 of file MeshTriangle.h.

union { ... }

unsigned MeshTriangle::nA

Definition at line 46 of file MeshTriangle.h.

unsigned MeshTriangle::nB

Definition at line 46 of file MeshTriangle.h.

unsigned MeshTriangle::nC

Definition at line 46 of file MeshTriangle.h.

unsigned MeshTriangle::nData[3]

Definition at line 49 of file MeshTriangle.h.

union { ... }

unsigned MeshTriangle::tA

Definition at line 54 of file MeshTriangle.h.

unsigned MeshTriangle::tB

Definition at line 54 of file MeshTriangle.h.

unsigned MeshTriangle::tC

Definition at line 54 of file MeshTriangle.h.

unsigned MeshTriangle::tData[3]

Definition at line 57 of file MeshTriangle.h.

union { ... }

Mesh* MeshTriangle::mesh

Definition at line 60 of file MeshTriangle.h.

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


Public Member Functions
Constructors
	MeshTriangle ()
	MeshTriangle (unsigned A_, unsigned B_, unsigned C_, unsigned nA_=0, unsigned nB_=0, unsigned nC_=0, unsigned tA_=0, unsigned tB_=0, unsigned tC_=0)
	MeshTriangle (const MeshTriangle &copy)
Core functionality
virtual real_t	getIntersection (const Ray &ray, SurfacePoint &pt)
	Initializes this triangle for intersection tests.
virtual AABB	getAABB () const
Vector3	getNormal () const
Vector3	getBaryocentricCoords (const Point3 &p) const
Sampling functionality
void	getRandomPoint (SurfacePoint &pt)
Point3	getPosition (const UV &uv)
real_t	getSurfaceArea () const
Public Attributes
unsigned	A
unsigned	B
unsigned	C
unsigned	data [3]
unsigned	nA
unsigned	nB
unsigned	nC
unsigned	nData [3]
unsigned	tA
unsigned	tB
unsigned	tC
unsigned	tData [3]
Fast-access public data
union {
struct {
unsigned A
unsigned B
unsigned C
}
unsigned data [3]
};
union {
struct {
unsigned nA
unsigned nB
unsigned nC
}
unsigned nData [3]
};
union {
struct {
unsigned tA
unsigned tB
unsigned tC
}
unsigned tData [3]
};
Mesh *	mesh