k3d/share/shaders/k3d_grids.sl:55:float G2L1_ss, G2L1_tt;
k3d/share/shaders/k3d_grids.sl:80:rotate2d(s, t, radians(G2L1_rotation), 0.5, 0.5, G2L1_ss, G2L1_tt);
k3d/share/shaders/k3d_grids.sl:82:G2L1_tt = repeat(G2L1_tt, G2L1_freq);
k3d/share/shaders/k3d_grids.sl:84:color G2L1_layer_opac = pulse(G2L1_linewidth, 1-G2L1_linewidth, G2L1_fuzz, G2L1_tt);
