The new dither code underflows with Gamma and OSA set on. Render: http://pub.intrr.org/dither.jpg Happens in very dark areas of the image and with values close to (or over) 1. It disappears as soon as OSA or Gamma is deactivated. | alexander ewering instinctive mediaworks | ae[@]instinctive[.]de http://www[.]instinctive[.]de