Doom9's Forum - View Single Post - --tune grain on BluRay sources

Keiyakusha · 21st July 2010, 15:27

Well of course if you using something like dither=3, it won't be killed entirely, but I can't imagine where such settings is not overkill since even on totally flat animation dither=2 is enough to fill all gradients. Normally you shouldn't use more than dither=1. For BD film sources I haven't found much use of this dither at all. Such films already contain enough amount of grain to look good so dfftest just replacing bigger grain (which is easier to compress and which is meant to be there) with smaller grain (which is harder to compress and which is not meant to be there).

21st July 2010, 15:27	#11 \| Link
Keiyakusha 契約者 Join Date: Jun 2008 Posts: 1,576	Well of course if you using something like dither=3, it won't be killed entirely, but I can't imagine where such settings is not overkill since even on totally flat animation dither=2 is enough to fill all gradients. Normally you shouldn't use more than dither=1. For BD film sources I haven't found much use of this dither at all. Such films already contain enough amount of grain to look good so dfftest just replacing bigger grain (which is easier to compress and which is meant to be there) with smaller grain (which is harder to compress and which is not meant to be there).