k3d/share/shaders/k3d_grids_disp.sl:38:color Ct0 = blend(SurfaceColor, GridColor, layer_opac0);
k3d/share/shaders/k3d_grids_disp.sl:54:float temp_f_2=(comp((x*Ct0+(1-x)*Ct1),0)+comp((x*Ct0+(1-x)*Ct1),1)+comp((x*Ct0+(1-x)*Ct1),2))/3;
