k3d/share/shaders/k3d_glass.sl:15: *    transmitcolor - color of the glass
k3d/share/shaders/k3d_glass.sl:40:		  color transmitcolor = 1;
k3d/share/shaders/k3d_glass.sl:46:		  eta, transmitcolor, refrrayjitter, refrraysamples,
