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Banding in Gradients
Posted: Wed May 24, 2006 6:39 pm
by gtcable
I'm getting moving bands of color in gradients as they move in their animations

. I don't see a way to resolve this so I assume it is a bug.
See the floor and ceiling gradients in this picture:

Posted: Wed May 24, 2006 6:50 pm
by Lost Marble
This could be a problem with the video codec you're using - many codecs don't handle smooth gradients all that well (perfect gradients don't show up much in real world video). If you render that particular frame as a still image, do you still see the banding?
Try going to the Project Settings dialog and setting the "Noise grain" value to 8 or 16. This will break up the smoothness of the gradients just a bit, tricking the video compressor into doing a better job.
BINGO
Posted: Wed May 24, 2006 7:26 pm
by gtcable
Ya know, I kinda thought that it looked like the codec was being a bit confused by the gradient as well. But I was using the Animation codec. This I was told was uncompressed (is that right?).
Anyways, I followed your suggestion and added a noise grain of 5 to my project settings. That solved it.

Thanks.
Now if I could just pin down my wall textures to keep them from moving.
http://www.lostmarble.com/forum/viewtopic.php?t=3751