public void setup() {
size(400, 400);
gfx = new ToxiclibsSupport(this);
Ray3D r = new Ray3D(new Vec3D(), new Vec3D(1, 0, 0));
Ray3D r2 = new Ray3D(new Vec3D(10, 10, 0), new Vec3D(1, -1, 0));
Ray3DIntersector ri = new Ray3DIntersector(r);
ri.intersectsRay(r2);
println(ri.getIntersectionData());
}