gwidion@xxxxxxxxxx (2003-07-18 at 1014.57 -0300): > I tried to aply adptive supersampling with maximum depth, > to compare the effects with the ones from the patch: I had to kill out > gimp after 20 minutes of 90% CPU use and no response. To see supersampling at work, try doing a diagonal gradient moving the mouse one pixel in each axis, and using a custom gradient like the german one, with repeat mode triangle wave. Use two layers, one with supersampling and the other without, then toggle visibility. You will see how the supersampled version is a bit smoother, giving a orange brown looking wavy image, instead of sharply changing pixels, more like straight lines than a gradient. Work in zoom mode to build the gradients, then compare zoomed and non zoomed. Quick conclusion: supersampling is for people working with quickly changing gradients, while dithering is for people working with slowly changing gradients. They are different things for different problems, and using the wrong one means wasting time. GSR