intersectRayTriangle
- double intersectRayTriangle(double originX, double originY, double originZ, double dirX, double dirY, double dirZ, double v0X, double v0Y, double v0Z, double v1X, double v1Y, double v1Z, double v2X, double v2Y, double v2Z, double epsilon)
- double intersectRayTriangle(Vector3d origin, Vector3d dir, Vector3d v0, Vector3d v1, Vector3d v2, double epsilon)
static
double
intersectRayTriangle
intersection_d
static functionsstatic variables
Determine whether the ray with the given <code>origin</code> and the given <code>dir</code> intersects the triangle consisting of the three vertices <code>v0</code>, <code>v1</code> and <code>v2</code> and return the value of the parameter <i>t</i> in the ray equation <i>p(t) = origin + t * dir</i> of the point of intersection. <p> This is an implementation of the <a href="http://www.graphics.cornell.edu/pubs/1997/MT97.pdf"> Fast, Minimum Storage Ray/Triangle Intersection</a> method. <p> This test does not take into account the winding order of the triangle, so a ray will intersect a front-facing triangle as well as a back-facing triangle.
@see #intersectRayTriangle(double, double, double, double, double, double, double, double, double, double, double, double, double, double, double, double)
@param origin the ray's origin @param dir the ray's direction @param v0 the position of the first vertex @param v1 the position of the second vertex @param v2 the position of the third vertex @param epsilon a small epsilon when testing rays that are almost parallel to the triangle @return the value of the parameter <i>t</i> in the ray equation <i>p(t) = origin + t * dir</i> of the point of intersection if the ray intersects the triangle; <code>-1.0</code> otherwise