RaySphere Class Reference

Inheritance diagram for RaySphere:

List of all members.

Public Member Functions
	RaySphere (void)
int	read (FILE *fp, int *materialIndex)
void	write (int indent, FILE *fp=stdout)
double	intersect (Ray3D ray, struct RayIntersectionInfo &iInfo, double mx=-1)
BoundingBox3D	setBoundingBox (void)
void	setUpOpenGL (int cplx, int setCallList)
int	drawOpenGL (int materialIndex)
Public Attributes
Point3D	center
double	radius
RayMaterial *	material

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Detailed Description

This class describes a sphere, and is represented by its center and radius.

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Constructor & Destructor Documentation

RaySphere::RaySphere (  void   )

The default constructore

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Member Function Documentation

int RaySphere::drawOpenGL (  int  materialIndex  )  [virtual]

This method calls the necessary OpenGL commands to render the primitive. Implements RayShape.

double RaySphere::intersect (  Ray3D  ray, struct RayIntersectionInfo &  iInfo, double  mx = -1 )  [virtual]

This method computes the intersection of the shape with the ray. If the ray hits the shape and either mx is less than zero or the intersection occurs at a distance less than t along the ray the intersection information in iInfo is set and a value greater than 0 is returned. Otherwise, -1 is returned. (This is useful for shadow testing when you may want to ignore hits beyond a certain distance). Either way the isectCounter is incremented by one. Implements RayShape.

int RaySphere::read (  FILE *  fp, int *  materialIndex )

This method reads in a RaySphere from a .ray file. A pointer to the material associated to the triangle is set.

BoundingBox3D RaySphere::setBoundingBox (  void   )  [virtual]

This method sets and returns a bounding box containing the shape. Implements RayShape.

void RaySphere::setUpOpenGL (  int  cplx, int  setCallList )  [virtual]

This method sets up all the stuff that's necessary prior to OpenGL rendering. The value cplx represents the desired resolution of tessalation for objects such as spheres, cylinders, etc.. Implements RayShape.

void RaySphere::write (  int  indent, FILE *  fp = stdout )  [virtual]

This method writes the RayShape out to a .ray file, indenting the output by the specified amount. If no file is specified, the information gets written to stdout. Implements RayShape.

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Member Data Documentation

Point3D RaySphere::center

The center of the sphere

class RayMaterial* RaySphere::material

The material associated with the sphere

double RaySphere::radius

The radius of the sphere

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