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Messages - YURII

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[C4D] Daily Builds / Re: Mac M1 LOW POWER MODE bug lives on.
« on: 2023-02-20, 06:37:21 »
Sarcasm here? It will be same result

So, I did a Cinebench R23 benchmark just now (16", M1 Max, 64RAM), started with Low Power mode, ran it for 10:00:00 and the score was 10834, then, immediately, after this test, I ran it again, this time in High Power mode and **SHOCKER** it scored 12108.

Interesting! Can you try a 60 minute test and post the results?

[C4D] Daily Builds / Re: Mac M1 LOW POWER MODE bug lives on.
« on: 2023-02-19, 21:28:55 »
So, I did a Cinebench R23 benchmark just now (16", M1 Max, 64RAM), started with Low Power mode, ran it for 10:00:00 and the score was 10834, then, immediately, after this test, I ran it again, this time in High Power mode and **SHOCKER** it scored 12108.

So why is that? Why Corona does it backwards? We want performance the same way it is when running Cinebench - CPU at 99%, Low Power Mode uses less power and scores lower. High Power Mode ramps up the fans and scores higher! I can hear fan ramping up, because it is not letting it to throttle as you guys claim! CPU is at 98% as we speak. Why Corona is not ramping up fans the same way as Cinebench is?

Again, question - why you guys think that everyone else got it wrong (or are faking CPU usage of 100%) and you guys got it right? Numbers speak for themselves!

PS - I should also add there are other components on the motherboard that can thermal throttle too, e.g. when the CPU demands more power to work and parts of the board have to start supplying that extra juice, so overall design has to be good to ensure those can dissipate heat.

Either way, "starts faster in full power mode then gets slower than when in low power mode" is a sure sign of thermal throttling somewhere in the machine. The decision is then whether it's faster to have it run at max capacity for a while and then swap to something slower than low power mode, or just having it all in low power mode from the beginning - short renders may complete before throttling occurs, for instance, so you can just do those in full power; but very long ones may benefit from just starting in low power mode for final overall render times.

[C4D] Daily Builds / Re: Mac M1 LOW POWER MODE bug lives on.
« on: 2023-02-19, 21:02:18 »
Yes, and as a matter of fact, crippling it by setting Mac to 'Low Power mode' gets better results than by using your very optimised algorithm, does it makes sense?

Im just saying, that it can't be that everyone is doing it wrong and you guys are doing it right, if you take into account scale of corporations like Apple, Maxon, BlackMagic, Adobe etc. You guys don't even have your own set of M1/M2 Macs to test all these hypothesis in house.

So, that is what is not making sense to me and few other people in this thread, who tried to tell you same stuff but in a bit more calmer tone. It just doesn't make sense!

Maybe, we should write to Chaos about it? Maybe they have extra budget for these types of scenarios?

The main, simple thing to take away here is that a CPU is NOT a uniform single thing - it has different parts that make it up. Different software will call upon those different parts to different amounts, and those different parts may result in different amounts of heat being generated. The example most commonly given is the AVX instruction set.

Not all software will call those different parts in the same way, so even though 2 different software says "100% being used", it may NOT mean the same parts are being used. Corona is very optimized for performance, and when it uses 100% that can indeed cause more heat than other software - but doing anything else would mean Corona would be slower, even before thermal throttling happened.

If Corona was poorly optimized, we'd not see the graphs and user reports where it runs faster FOR A WHILE than in low power mode, THEN runs slower. The only explanation for this is that the design could not dissipate the heat and it built up until the CPU decided to throttle itself. If Corona was poorly optimized, it would always run slower and that speed would be consistent and not change over time.

Thus, there is no way to "optimize" Corona here, only to "cripple" it to avoid so much heat being generated - and you can already do this yourself by setting Corona to use less threads, or by swapping to low power mode.

[C4D] Daily Builds / Re: Mac M1 LOW POWER MODE bug lives on.
« on: 2023-02-19, 16:13:26 »
Issue occurs with Corona ONLY BECAUSE it is poorly optimised for Mac silicone! Simple as that! How you can be so blind and try to convince us that it is hardwares fault? That M1 Mac cant handle 100% CPU load for extended period of time on Corona, even though it can with other software? Clearly other guys did something right that you guys did wrong! Its like blaming a tutor for not being able to submit test at 100% while other students did that just fine.

Maybe call Apple and ask them for help? Call Maxon and ask how they were able to optimise their app and native renderers? This - We cant do anything - just kills me!

Im seriously thinking of switching to some other renderer, even though Ive ben with you guys since first ever version.

Do something -

This will be my last post about this issue because is very difficult to explain here. More test must be done but not from us but from developers. Try to run a Cinema4D native render scene (not corona or Vray). You will able to reach the 995% of the CPU for hours and also you can place the MacBook on a pillow without any issue. You will find the same Cinebench of an iMac i9 10K generation.

I'm glad that you have finally read the explanations that we wrote multiple times on why the issue occurs with Corona and not with some other software and that finally the issue does not require any further comments.

[C4D] Daily Builds / Re: Mac M1 LOW POWER MODE bug lives on.
« on: 2023-02-04, 21:23:53 »
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.

So, thats it, you are saying that you guys give up on this and it is the way it should be?

[C4D] Daily Builds / Re: Mac M1 LOW POWER MODE bug lives on.
« on: 2023-01-18, 09:50:31 »
Ok, MacBook Pro 16 M1 MAX 64GB RAM (Cinema R25 + latest public Corona). I 'warmed' up CPU so it will start with throttling.

Low Power mode OFF - 18:38 (around 70% CPU load)
Low Power mode ON - 15:54 (around 85% CPU load)

For comparison - I did run Cinebench with Low Power mode OFF for extended time and CPU load was constant at about 97% (which is comparable to intel Macs) + fans were spinning a lot more compared to Corona Renderer.

[C4D] Daily Builds / Re: Corona Render Test M1 and M1 Max
« on: 2023-01-18, 08:50:17 »
Just bought a new M1 MAX MacBook 16 and I have same problem, when it is 'Automatic' or 'High Power' mode selected it drops to 60-70% CPU load, while selecting 'Low Power' it goes to 80-88%. Can we expect a fix sometime soon? Also, on intel, CPU load was close to 95-97%, so even with 'Low Power' we ain't getting the best performance.

Thank you!

Ok, I think I figured it out! Thank you!

Absorption is responsible for this effect so you can just create a crystal clear material and enable absorption with some dark/black color:

By absorption you mean under volumetrics section? See Attached!

[C4D] I need help! / Need help with material Volumetrics
« on: 2022-09-07, 15:50:50 »
Hi dudes and girls!

Im trying to create a translucent plastic material that would behave like the real thing (where it is thicker it would be darker and vice versa), any tutorials or tips on how to achieve that?

Thank you!

Thank you guys,

But I need reflection for exterior windows. Attaching images to this post (not sure how to add them inline)

What bothers me is that shadow you can see when reflection plane is turned ON, even though I unchecked 'cast shadows'. Any thoughts?

[C4D] I need help! / Best way to add reflection in windows
« on: 2022-08-30, 12:32:00 »
Hi guys, what are the best ways to add reflection in windows? I tried putting up a plane with reflection material attached (simple background reflection image in diffuse and self illumination slots), turned off seen by camera, seen by GI and cast shadows in Corona Compositing tag that I applied to plane and that plane still casts some shadows.

Maybe there is a better suggestion that you could share?

Thank you!

[C4D] I need help! / Re: Jagged lights
« on: 2020-12-14, 16:00:27 »
Thank you, blur helps, and then composite blurred layer in PS

[C4D] I need help! / Jagged lights
« on: 2020-12-14, 12:52:39 »
Hello everyone, maybe some of you will know how to solve jagged outline around lights? Bloom and glare is not an option. See screenshot attached.

Thank you!

Thanks, so far under Big Sur it is working OK, is this daily build stable enough for production?

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