Blackmagic Forum

Resolve 15 Beta 5
ProRes 4444 4K DCI clips: I do see a very small luminance step at the beginning and the end of a Cross Dissolve video transition. It is indeed very small but very annoying when you do smooth color area transitions between two clips. I thought this is a problem in the Edit page after cache rendering but it stays the same after final delivery. The error is independent of any kind of transition setting, I have tried all possible parameters. Then tried edge aliasing setting in the project settings but no effect here again.

Any hint/help highly appreciated, and if this is indeed a bug please fix it soon... I cannot live with that for a high quality theatrical release!

Thanks!

Which OS are you using?
Do you see this on the internally generated ramp?

Late Mac Pro 2013, OS High Sierra 10.13.3.
Yes, it occurs on the internal ramp. I can clearly see it when I put the timeline cursor on the beginning or end of the ramp and switch one frame forward or backward. In my opinion/guess it's maybe just one LSB bit jump in luminance, and as I described totally independent of the type of transition (video, film etc., custom ramp or anything else...). I have changed the monitoring resolution to 12 bit as my Sony BVM-X300 can handle that at 4x SDI out but no difference. It's clearly not a monitoring problem but something which happens on Resolve processing areas (I guess...).

Can you post a drp of the internal ramp clips that show it?
A phone video of what you see will help too.