> You could avoid
> over-bright objects getting jagged edges by using more samples (the
> anti-aliasing threshold would mean these extra samples only got used on
those
> high-contrast areas).

If 1/9 of a pixel has the color rgb 10000, and the rest of the pixel has
other colors between 0 and 1, and clipping happens after anti-aliasing, then
the pixel is going to be 1/9 * 10000 + 8/9 * (something between 0 and 1),
which works out to be well over 1, causing the entire pixel to be
oversaturated. More samples just causes this calculation to be more
accurate, but still well over 1. If this happens at every pixel along the
edge of an object, it will look pixellated.

 - Slime
 [ http://www.slimeland.com/ ]

Post a reply to this message