k3d/share/shaders/k3d_orennayar.sl:46:    color lightC = 0;
k3d/share/shaders/k3d_orennayar.sl:75:	lightC += (L1 + L2) * Cl;
k3d/share/shaders/k3d_orennayar.sl:79:    Ci = Os * (Cs * (Ka*ambient()) + Kd*lightC);
