k3d/share/shaders/k3d_grids.sl:65:color G1L1_layer_opac = pulse(G1L1_linewidth, 1-G1L1_linewidth, G1L1_fuzz, G1L1_tt);
k3d/share/shaders/k3d_grids.sl:66:color G1L1_Ct = blend(G1L1_SurfaceColor, G1L1_GridColor, G1L1_layer_opac);
