I can&#x27;t say for sure, but one of my guesses would be <i>stability</i>. By that I mean that the <i>noise</i> is acceptable for a single static image, because it doesn&#x27;t change - but distracting in an animation if the dithering completely changes from frame to frame.<p>I might be a non-issue - either not noticeable or not distracting - and the real reason is that people just don&#x27;t see banding as a problem or that the rendering overhead per-frame is too much.