k3d/share/shaders/k3d_grids_disp.sl:20:float freq1=44.9; 
k3d/share/shaders/k3d_grids_disp.sl:47:ss1 = repeat(ss1, freq1);
k3d/share/shaders/k3d_grids_disp.sl:48:tt1 = repeat(tt1, freq1);
