gnu.gleem
Class RayTriangleIntersection

java.lang.Object
  |
  +--gnu.gleem.RayTriangleIntersection

public class RayTriangleIntersection

extends java.lang.Object

Implements ray casting against a 3D triangle.

Field Summary

static int	ERROR
static int	INTERSECTION
static int	NO_INTERSECTION

Constructor Summary

RayTriangleIntersection()

Method Summary

static int

intersectRayWithTriangle(Vec3f rayOrigin, Vec3f rayDirection, Vec3f v0, Vec3f v1, Vec3f v2, IntersectionPoint intersectionPoint) Cast a ray starting at rayOrigin with rayDirection into the triangle defined by vertices v0, v1, and v2.

Methods inherited from class java.lang.Object

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

Field Detail

ERROR

public static final int ERROR

See Also:

Constant Field Values

NO_INTERSECTION

public static final int NO_INTERSECTION

See Also:

Constant Field Values

INTERSECTION

public static final int INTERSECTION

See Also:

Constant Field Values

Constructor Detail

RayTriangleIntersection

public RayTriangleIntersection()

Method Detail

intersectRayWithTriangle

public static int intersectRayWithTriangle(Vec3f rayOrigin,
                                           Vec3f rayDirection,
                                           Vec3f v0,
                                           Vec3f v1,
                                           Vec3f v2,
                                           IntersectionPoint intersectionPoint)

Cast a ray starting at rayOrigin with rayDirection into the triangle defined by vertices v0, v1, and v2. If intersection occurred returns INTERSECTION and sets intersectionPoint appropriately, including t parameter (scale factor for rayDirection to reach intersection plane starting from rayOrigin). Returns NO_INTERSECTION if no intersection, or ERROR if triangle was degenerate or line was parallel to plane of triangle.