Messages

61

[C4D] Bug Reporting / Clouds Bug

« on: 2023-06-14, 16:37:11 »

Hello, Alex again. I found a strange behaviour of clouds shadows in my scene. I can reproduce it so here you can see a video where I moving my camera into a simple scene with clouds, trees and a simple huge plane.
Every time I move in or out my camera and stop the IRR, the clouds continue to update its position....only during movment in or out Very annoying during the clouds setup position.
How does it works the clouds generation? is it position camera based during IRR? seems works fine with final render (seems) but not with IRR....

Attached you can find a movie and the scene.
Latest Cinema4D and Corona Render commercial release on OSX lates OS and M1 Max processor.

62

[C4D] Bug Reporting / Re: Delete unused material clear the SKY

« on: 2023-06-09, 09:32:48 »

I'm happy to help developer to flush away bugs or issue...

63

[C4D] Bug Reporting / Delete unused material clear the SKY

« on: 2023-06-08, 16:10:27 »

Hello to all, I found a strange behaviour on latest Corona render 9.
Look at the video attached at the topic...if you hit "delete unused material" the SKY preview is gone :)

64

[C4D] General Discussion / Re: Corona VFB refresh rate :)

« on: 2023-06-02, 10:51:36 »

Same here....happens only when you trace the render region and move it or delete it. Maybe the high refresh of the windows is needed for trace the region render areas...look the movie attached...

65

[C4D] Corona Goodies - User Contributions / Re: Free Chevron Floorboard texture 4K

« on: 2023-05-30, 11:55:49 »

mmm works very well imho! I had to invert the roughness channel with corona color correct to create a matte surface effects instead of shiny surface :)

66

[C4D] Daily Builds / Re: Render performance problem ... ( Threadripper 3970x )

« on: 2023-04-07, 10:52:05 »

mmm...I think there is something wrong in the scene or some objects that overload the calculation...
Usually if you have a lot of RAY total but low ray actual, there is something in the scene...

What kind of object do you have in the scene? generators? displacement? many complex shaders?

67

[C4D] General Discussion / Re: Bloom and Glare turn off it self

« on: 2023-03-31, 18:01:38 »

Hi,

Same problem here.

Start a rendering with bloom and glare on... renders fine (till the end)

Start a new rendering of the same scene and bloom and glare is turned off

Anyone has a clue why ?

Hi, what version of Corona are you running?

Corona Render 9 has this bug...I'm fighting with this every day. I hope for Corona 10 Fix...very annoying

68

[C4D] I need help! / Re: ula background item

« on: 2023-03-01, 10:41:25 »

Every time you install Corona Render the ULA is part of the installer with Cosmos and Chaos License so you need to remove it every time due to older components of the Corona HF1 installer.
This issue happens every time you try to install current release on Ventura OSX. Developers must be upgrade the installer with new Chaos Components. Five minutes of work but this issue is out from OSX Ventura day one. Maybe corona developers are busy for upgrading the installer.
Put it on the trash and all will be fine...is impossible to uninstall due to a incomprehensible applications stored on chaos folder.

69

Gallery / Classic interior renders

« on: 2023-02-23, 12:26:52 »

Here are two shots from an old-style interior design.

70

Gallery / Some Still-life

« on: 2023-02-23, 12:25:30 »

Here are some Still-life render made with Corona Render.

71

[C4D] Daily Builds / Re: Mac M1 LOW POWER MODE bug lives on.

« on: 2023-02-11, 16:19:25 »

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.

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.
Alex

72

[C4D] Daily Builds / Re: Mac M1 LOW POWER MODE bug lives on.

« on: 2023-02-07, 10:59:47 »

The fact that other software can't run the CPU to its full capacity over an extended period.

Sorry Tom, but all Corona Team continue to replay that. I understand that every software developer loves it's creatures...and we love Corona Render too...but please could we try to analyse the fact that Cinema4D Cinebench or Cinema4D standard/physical rendering engine can handle the CPU up to 99% for hours without any overhead, without any CPU throttle and without any ISSUE on Apple Silicon Processor...?

Nejc Kilar is the only one said interesting things about the "different" part of the CPU used for calculations...maybe Cinema4D rendering engine takes part of the CPU for calculation that Corona and Vray don't....it's interesting. I don't know deeply how the pure calculation works...but what I know that Cinema4D push the CPU at it's best, Corona it doesn't...Science is a fact and numbers say that.

Anyway, I wrote many time about that Corona Render "sometimes" reach the 98% of the CPU...and after some loop renders on the same scene, continuous works or long period or "I don't know why", it falls below 800%...sometimes 750% of a total of 1000% of 10 core Apple silicon CPU. The Cinema4D rendering engine stay up to 990% of the CPU, this make the CPU Hot, not as my second iMac with Intel 10K generation processor that become very hot, but the CPU never falls below 990%.

I tested internally the behaviour of:

iMac i9 10K
Apple Silicon M1 Max.

We have the same Cinebench numbers: around 14.000 CB. So when I try a complex scene, my M1 Max and my iMac i9 renders with the same timing...M1 Max is a little bit speedy.. and stay cold..the i9 seems a phon and drive me crazy :)
I tried with a complex Corona Render scene and at first passes my M1 Max outperformed the iMac i9. But after sometime my M1 has fails with a 20-25% of processors percentage unused.

It seems a throttle issue, but it doesn't...

I want to repeat my question: way does Cinema4D rendering engine use 98% of the processor for hours? How different are the mathematical instructions sent to the CPU by Cinema4D rendering engine and Corona Render? Do you think is a good idea to try a Stand Alone Rendering without pass through plugin Ecosystem? Maybe Cinema4D creates a bottleneck?

This pictures from me are absolutely clear.
PS: I don't tested the low power on or low power off...I work with automatic power...my corona issues come up with any settings.

73

[C4D] Resolved Bugs / Re: Corona Image Editor keeps crashing

« on: 2023-02-03, 23:32:52 »

Happens to all OS X users from the beginning.
Unfortunately the image editor is a total disaster.
Crash every time I close it without any action.

74

[C4D] Daily Builds / Re: Mac M1 LOW POWER MODE bug lives on.

« on: 2023-02-03, 08:39:45 »

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.

I don't totally agree with you Tom. Try to follow me: if you start a render with Cinema4D internal rendering engine, (I agree that we don’t know how it uses thread or how is optimized) you can push the Apple silicon cpu to near 100%. (I have 10 cores so around 998% CPU) My MacBook Pro M1 Max can handle a scene for many hours running without any CPU or GPU throttle. Sure you can hear fan running (medium velocity of course). If it was a hardware problem related the same thing should happen. Cinema4D can't tell to the CPU to avoid throttling so is very easy to make a conclusion about.

The fact is that Corona (I can't try any rendering engine that uses CPU unfortunately) uses around 80% of total cores after some passes or after some loop renders. Cinema4D can handle the full percentage of the CPU without any throttle.
The throttle it does not matter here, believe me.

About other kind of test with Corona Bench, I know that right now is not compiled for Apple silicon CPU, I seen on Trello about future re-compiling for M1. I think that a good test should be to try with a stand-alone app for to see what happen during rendering. Avoiding to pass through Cinema4D C++ plugin ecosystem is a good way to test the power of the compiled app.

Alex

75

[C4D] Daily Builds / Re: Mac M1 LOW POWER MODE bug lives on.

« on: 2023-02-02, 18:01:15 »

It does not happen with the Cinema 4D native render engine.
It happens with Corona.
It happens with V-Ray.

Interesting thinks...maybe this can be used to investigate more?

Does it mean that "Only Corona has this issue"?

I mean that Corona Render and now also Vray has issue...
What do you think about Cinema4D Rendering engine has not issue? do you think that could be a "C++ C4D plugin behaviour" problem? I would like to know if a Corona Benchmark stand alone is afflicted from this issue or come from plugin ecosystem.
Anyway take it easy, we love corona render and we would like to see it render at speed of light on Apple silicon CPU...

Alex