27 CollisionLine(
const LPoint3 &origin, 
const LVector3 &direction) :
    37               PN_stdfloat dx, PN_stdfloat dy, PN_stdfloat dz) :
 An infinite ray, with a specific origin and direction.
CollisionLine()
Creates an invalid line.
An infinite line, similar to a CollisionRay, except that it extends in both directions.