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Nightingale_cz

macrumors newbie
Original poster
Nov 10, 2020
15
9
Hello everyone,

I've had Mac Studio for about a week, in a M1 Ultra 64 core gpu configuration. I just discovered a problem when working with the 3D program Cinema4D R25 and R26. When the software is on, it does GPU glitches even in macOS windows and dock. When I turn it off everything is OK. I also experienced something similar when working in Unity 2021, but it's not as pronounced there.

GPU benchmarks like Cinebench or Geekbench 5 don't do these problems.

Do you think it's just a bug in the software and poor optimization for M1 Ultra, or could my M1 Ultra be faulty?

Thanks!

 
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Matt Leaf

macrumors 6502
Feb 5, 2012
453
450
Damn, that sucks. Since it's doing that in both apps, it sounds like a hardware issue. Have you tried any other 3D software like Blender or maybe Maya?

I know wait times are bad but sometimes this happens. I bought an iMac once that had an epic fat green line glitching out on it and I had to return it, but then all was good.

Hope you work it out and all the best with it.
 
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Nightingale_cz

macrumors newbie
Original poster
Nov 10, 2020
15
9
Thank you! Since Cinema4D doesn't work for me, I use Blender, and it works fine. Tried Maya now and ok too. In Unity I had the feeling that something flashed once, but maybe it was just my imagination :D
 

sirio76

macrumors 6502a
Mar 28, 2013
573
407
Thank you! Since Cinema4D doesn't work for me, I use Blender, and it works fine. Tried Maya now and ok too. In Unity I had the feeling that something flashed once, but maybe it was just my imagination :D
As far as I know it’s a C4D issue, developers are already aware of that and it should be fixed with a software update.
 
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awkward_eagle

macrumors member
Feb 5, 2020
84
36
As far as I know it’s a C4D issue, developers are already aware of that and it should be fixed with a software update.
Where have you heard the developers are aware and are working on an update? Only asking because I'm having this exact problem with the same hardware / software combo.

Appears to only happen with an Ultra Studio and a Pro Display XDR and C4D in my testing. If it's really only a software problem I can avoid having to return / repair.

Edit : Confirmed with Maxon it's a software issue. They're working with Apple on a fix. They said the current Ventura beta is already fixed.
 
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sirio76

macrumors 6502a
Mar 28, 2013
573
407
Anyone installed Ventura? I’m waiting for this issue to be fixed to buy a MacStudio
 
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