prim_normal VEX function

Returns the normal of the primitive (prim_number) at parametric location u, v.

Contexts: image3d, chop, cop, pop, sop, surface, displace, fog, light, shadow, photon, cvex

  1. vector prim_normal(string filename, int prim_number, float u, float v)

Returns the normal of the primitive (prim_number) at parametric location u, v.