threeD.raytracer.primitives
Class Sphere

java.lang.Object
  threeD.raytracer.engine.AbstractSurface
      threeD.raytracer.primitives.Sphere

All Implemented Interfaces:

Surface

Direct Known Subclasses:

SphericalLight

public class Sphere

extends AbstractSurface

A Sphere object represents a primitive sphere in 3d space.

Constructor Summary

Sphere()
Constructs a Sphere object that represents a unit sphere centered at the origin that is black.

Sphere(Vector location, double radius)
Constructs a Sphere object that represents a sphere with the specified center location and radius that is black.

Sphere(Vector location, double radius, RGB color)
Constructs a Sphere object that represents a sphere with the specified center location, radius, and color.

Method Summary

Vector	getNormalAt(Vector point) Returns a Vector object that represents the vector normal to this sphere at the point represented by the specified Vector object.
boolean	intersect(Ray ray) Returns true if the ray represented by the specified Ray object intersects the sphere represented by this Sphere object in real space.
Intersection	intersectAt(Ray ray) Returns an Intersection object representing the points along the ray represented by the specified Ray object that intersection between the ray and the sphere represented by this Sphere object occurs.

Methods inherited from class threeD.raytracer.engine.AbstractSurface

addShader, addTexture, addTransform, calculateTransform, getColor, getColorAt, getLocation, getParent, getRotationCoefficients, getScaleCoefficients, getShadeBack, getShadeFront, getShaderSet, getSize, getTexture, getTextures, getTextureSet, getTransform, getTransform, getTransforms, removeTexture, removeTransform, setColor, setLocation, setParent, setRotationCoefficients, setScaleCoefficients, setShadeBack, setShadeFront, setShaders, setSize, setTexture, setTextures, setTransform, setTransforms, shade

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

Sphere

public Sphere()

Constructs a Sphere object that represents a unit sphere centered at the origin that is black.

Sphere

public Sphere(Vector location,
              double radius)

Constructs a Sphere object that represents a sphere with the specified center location and radius that is black.

Sphere

public Sphere(Vector location,
              double radius,
              RGB color)

Constructs a Sphere object that represents a sphere with the specified center location, radius, and color.

Method Detail

getNormalAt

public Vector getNormalAt(Vector point)

Returns a Vector object that represents the vector normal to this sphere at the point represented by the specified Vector object.

intersect

public boolean intersect(Ray ray)

Returns true if the ray represented by the specified Ray object intersects the sphere represented by this Sphere object in real space.

intersectAt

public Intersection intersectAt(Ray ray)

Returns an Intersection object representing the points along the ray represented by the specified Ray object that intersection between the ray and the sphere represented by this Sphere object occurs.