k3d/share/shaders/k3d_craters.sl:33:    float sctr, tctr, scell, tcell,scellctr,tcellctr;
k3d/share/shaders/k3d_craters.sl:61:		    sctr = cellsizescale * (scell + 0.5 + jitter * cellnoise(scell+0.5, tcell+0.5));
k3d/share/shaders/k3d_craters.sl:63:		    ss = s - sctr;
k3d/share/shaders/k3d_star.sl:22:    uniform float sctr = 0.5;
k3d/share/shaders/k3d_star.sl:37:    ss = s - sctr; tt = t - tctr;
k3d/share/shaders/k3d_wallpaper.sl:29:    float sctr, tctr, scell, tcell;
k3d/share/shaders/k3d_wallpaper.sl:49:                sctr = CELLSIZE * (scell + 0.5
k3d/share/shaders/k3d_wallpaper.sl:53:                ss = s - sctr;
