org.jpbrt.core
Class Ray

java.lang.Object
  org.jpbrt.core.Ray

Direct Known Subclasses:

RayDifferential

public class Ray
extends java.lang.Object

Ray.

References:
M. Pharr, G. Humphreys. (2004). Physically Based Rendering. Morgan Kaufmann.
Page 57.

Version:

1.0 2010-09-09 Created.

Author:

Werner Randelshofer

Field Summary

Vector	d Direction of the ray.
int	depth ??.
float	maxt Ray segment maximum along the infinite extent of the ray.
float	mint Ray segment minimum along the infinite extent of the ray.
Point	o Origin of the ray.
static float	RAY_EPSILON
float	time Time of the ray for motion blur simulation.

Constructor Summary

Ray()

Ray(Point origin, Vector direction, float start)

Ray(Point origin, Vector direction, float start, float end)

Ray(Point origin, Vector direction, float start, float end, float time)

Ray(Point origin, Vector direction, float start, float end, float time, int depth)

Ray(Point origin, Vector direction, Ray parent, float start, float end, float t)

Ray(Ray that)

Method Summary

boolean	hasNaNs()
void	setTo(Point origin, Vector direction, float start, float end)
void	setTo(Point origin, Vector direction, float start, float end, float time)
void	setTo(Point origin, Vector direction, float start, float end, float time, int depth)
void	setTo(Point origin, Vector direction, Ray parent, float start, float end, float t)
java.lang.String	toString()
Point	transform(float t) Returns the location of the point at Distance t on the ray.

Methods inherited from class java.lang.Object

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

Field Detail

RAY_EPSILON

public static final float RAY_EPSILON

See Also:

Constant Field Values

o

public Point o

Origin of the ray.

d

public Vector d

Direction of the ray.

mint

public float mint

Ray segment minimum along the infinite extent of the ray. Initialize this with RAY_EPSILON instead with 0 to avoid self-intersections of the ray with a shape at its origin.

maxt

public float maxt

Ray segment maximum along the infinite extent of the ray.

time

public float time

Time of the ray for motion blur simulation.

depth

public int depth

??.

Constructor Detail

Ray

public Ray()

Ray

public Ray(Point origin,
           Vector direction,
           float start)

Ray

public Ray(Point origin,
           Vector direction,
           float start,
           float end)

Ray

public Ray(Point origin,
           Vector direction,
           float start,
           float end,
           float time)

Ray

public Ray(Point origin,
           Vector direction,
           float start,
           float end,
           float time,
           int depth)

Ray

public Ray(Point origin,
           Vector direction,
           Ray parent,
           float start,
           float end,
           float t)

Ray

public Ray(Ray that)

Method Detail

setTo

public void setTo(Point origin,
                  Vector direction,
                  Ray parent,
                  float start,
                  float end,
                  float t)

setTo

public void setTo(Point origin,
                  Vector direction,
                  float start,
                  float end)

setTo

public void setTo(Point origin,
                  Vector direction,
                  float start,
                  float end,
                  float time)

setTo

public void setTo(Point origin,
                  Vector direction,
                  float start,
                  float end,
                  float time,
                  int depth)

transform

public Point transform(float t)

Returns the location of the point at Distance t on the ray.

hasNaNs

public boolean hasNaNs()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object