UltraNR - Buggy, slow, yet sometimes effective.

Hey all,

Any thoughts on UltraNR?

Currently using it on my Macbook Pro M3 Max and it grinds DaVinci to a complete halt. Understandable because it's extremely powerful but the bugginess of the feature is what makes me the most cautious about using it.

Bugs so far:
-Hot pixels when paired with Temporal NR
-A strange semi-strobe effect on hair or any deep blacks (renders using this feature unusable).
-Worse bug is that it sometimes doesn't work on some shots for no particular reason. I click analyze and the sample patch box refuses to appear.

I get this is a Beta feature. Just got a wee bit too excited about UltraNR when it was announced as it would come in handy with those pesky, noisy Red sensors. The moments I've gotten the feature to work it has completely revived what was previously an unusable shot. In other moments I find myself at a loss. Anyone in the Windows end of the spectrum have better results?

[Peter Chamberlain]

What res is the source shot and timeline?

Hey Peter,

Both the timeline and source footage are at 4096 x 2160.

no issues here, runs RT easly, does a pretty good job with -or- without temporal, can't repo artifacts in shadows, no negitive pixels values apprerant

Dci4k timeline, Arri RAW sources, ACEScct
w10 / 2x 2699v4 / 3090 / 128g / SAS storage

It works great for me but I am on Windows.

Beta 1 or 2?

I've noticed the UNR is slower in beta 2 but doesn't slow things to a halt. Also, I haven't seen any bad pixels (yet) in B2

Been using this quite a bit.

It's not fast to process, and depending on where it analyses, there can be artifacts in deep black areas.

But generally I find it works quite well, and I see no difference in processing times with Beta 2.

Studio 19b2 on Windows
RTX 3060 12 GB.