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Gallery / Classic interior renders
« on: 2023-02-23, 12:26:52 »
Here are two shots from an old-style interior design.
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I have done many tests and always the Mac Book Pro M1 Max was much slower than the iMac i9. Always the M1 Max rendered at an average of 750-800% and the iMac i9 at 950%. Apparently, the M1 with better ventilation do not have the %CPU drop problem... I have raised the Mac Book Pro from the work surface leaving the lower central space free and cool and the render times have improved... it takes 1 hour with an average of 950% CPU. I'm doing long-term render tests and I'm buying it with iMac i9 and it's starting to improve a lot in performance. A little below the M1 Max. When I carry out more tests I will be able to throw a percentage or comparative times. I hope I can shed some light on this matter because my workflow is mac and corona and I am so comfortable that I would not want to change it. From what I read, the mac studio does not have this performance drop and it seems to be a very powerful processor. I have the problem on an iMac M1 that I don't know what I can do to improve its cooling or CPU performance. Thanks to all users and the corona team. Thank you for bringing this wonderful rendering engine to mac. A greeting from Spain.
The fact that other software can't run the CPU to its full capacity over an extended period.
The thing is, further investigation does not seem necessary. We can't say how the native renderers in C4D use threads, how optimized they are, etc. What we can say is that Corona and V-Ray are VERY good at using a CPU to its full capacity, and this seems to be the problem as the CPUs or some other element in the machine end up throttling. Since no program can ever "make the CPU do more than it can do" that comes down to the hardware not keeping everything below operating temperatures when the CPU is maxed out.
The only solution would be to deliberately make Corona and V-Ray NOT run at full power, which would be somewhat backward. Of course this should be possible for you to control at some level by reducing the number of threads Corona is allowed to use for rendering, which may keep temperatures down (EDIT - or of course use low power mode, which is the OS equivalent of reducing the power of the CPU available for use). But ultimately the tests are pointing toward the fact that the hardware does not keep the CPU (or some other element in the machine) cool enough to avoid throttling when the full power of the CPU is used for an extended period of time, and that one comes down to the hardware manufacturer.
It does not happen with the Cinema 4D native render engine.
It happens with Corona.
It happens with V-Ray.
Does it mean that "Only Corona has this issue"?
- “Only Corona has this issue” - this is not true. This is not a Corona-only issue. According to our tests, the same issue appears when rendering with V-Ray.
What is the point of sharing support answers on the forum? If you have some concerns, please discuss it with the support agent.
Please stop being disrespectful
Hello,
It appears to be something new in Ventura OSX that has caused this issue. Until they release a fix you can uninstall the ULA from Applications.
Best Regards,
Aneliya Karadzhova
Chaos Technical Support
Hello,
It appears to be something new in Ventura OSX that has caused this issue. Until they release a fix you can uninstall the ULA from Applications.
Best Regards,
Aneliya Karadzhova
Chaos Technical Support