Just an FYI
Simple Flame regrain node (you’ll recall my LiveGrain post). No matter what at frame 1114 the grain does this bizarre herringbone pattern, and then goes back to normal. It’s in timeline, it’s in Batch. If you’re bored I’d be interested if it’s reproducible for you.
2024.2.2, Mac
resolution, color space, bit depth, start frame, Grain type
1080, 16bit batch or 12 bit timeline, start frame 1, ANY of the preset flame regrains except B&W
Edit: UHD same
not seeing it on linux
nope - not here - not an exhaustive test:
1200 frames of 50% grey - 1920x1080@16bitfp@23.976fps
I tried:
5245
5248
5287
5293
5296
5298
I don’t see the same behavior.
Workstation: HP Z820 Workstation
CPU: Intel(R) Xeon(R) CPU E5-2687W 0 @ 3.10GHz, 32 active CPU(s)
RAM: 515381 Meg of RAM
Graphics: Quadro RTX 4000 Driver: 550.90.07
OS: Rocky Linux release 9.3 (Blue Onyx) - 64bit OS
Kernel: 5.14.0-362.8.1.el9_3.x86_64 DKUversion 19.1.0-1
Config: DKUversion 19.1.0-1
Yeah, we’ve found this on our macs. Quite bizarre and unpleasant.
Also, make of this what you will but could be helpful to send along with the support request. Saturn is in retrograde right now too, so that could be what’s causing it to only show up on macs (from my knowledge of astrology)
Just wondering why you’re still using regrain, I always use Ivars renoise, much better IMO.
FWIW, In the limited testing that I’ve done, the new for 2025 Match Grain tool generates noise patterns that are functionally indistinguishable from the original footage (when working in a color-managed, degrain / regrain workflow).
The following was fixed in Flame 2025.0.1
FLME-66014 : Regrain: The green channel of some seeds can display corruption.
Which may fix your issue.
https://help.autodesk.com/view/FLAME/2025/ENU/?guid=fixed-issues-2025-0-1
