Hi, I'm trying to create a simple raytrace type behavior which consist of a cylinder that hit a simple wall and another cylinder that create at hit point and point in opposite direction. I already know how to compute direction of reflected ray(cylinder) by this formula:
c1 = -dot_product( N, V ) (the vector math node does dot products) Rl = V + (2 * N * c1 ) N= Surface/Geometric normal (you can get this via sampler info) V = direction of the incoming laser(cylinder) and hit point position by intersect method. but i don't know how to apply the direction (Rl) to reflect cylinder to rotate and point it to right direction. Any idea? Thanx :) -- http://groups.google.com/group/python_inside_maya
