I have recently installed macOS Big Sur 11.0 ßeta on an iMac, late 2014.
Minor and preliminary testing with Cheetah 3D has been without any problems / glitches. If I stumble upon any weird hiccups I will add to this thread.
Oops: C3D crashes on rendering an animation. CPU load creeps up to 380% (as per activity monitor), the fans simulate an Airbus on take off and then rigor mortis.
This happens quite consistently on .jas models of different volumes / complexity.
Crashes may happen after 5 frames or after 20 seconds of rendering (same .jas model).
The editor seems to run an animation without problems. Rendering a single frame also appears to function faultlessly.
Unless you want to significantly increase your consumption of alcohol and other psychedelic pharmaceutica: Do not currently install Big Sur ßeta.
(somehow I can't give you a like when you encounter such trouble, but thanks for the info. The transition to arm doesn't seem as free of problems as they made us hope).
After further tests:
* I can generate a C3D crash, almost at will, by starting Safari in the middle of a C3D render. Similar crashes can be engineered via iMovie, time machine and a few more. The activity monitor shows a wobble in the CPU load for the system and the C3D process takes an instant nose dive.
* If I render an animation and leave the Mac alone, this sometimes seems to work without problems.
* It may be that macOS Big Sur 11.0 ßeta currently has a major problem managing / balancing the CPU between processes. Unfortunately, I cant make sense out of the crash report. I hope that the wise gurus & guruesses in Cupertino (who should have received a few dozen by now) know better.
* Make sure that you use the last version published by Martin. I had major problems with frequent crashes using the macos Big Sur, but they all vanished with the last update of C3D.
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