TEAM RENDERING ISSUE - PLEASE HELP!

[wardy_mk]

Hello. I have a Mac Studio M1 Ultra as my workstation and I also have a Threadripper 2990WX as a render node. I'm trying to send jobs over to it and set it rendering but I'm getting out-of-memory errors. Even simple files. I have 128GB RAM in there and there's plenty of room on the internal drives so I'm not sure what's going on. I can render a non-corona scene that's very complicated in comparison - no problem. Therefore, I'm assuming it's a Corona issue.

Does anyone have any ideas on this?
Thanks in advance...

[maru]

Which version of Corona are you using?

Can you open one of the problematic scenes on both machines and render it locally, without TR? Does it render ok?

What is your RAM usage when running TR? Perhaps it's some kind of memory leak?

[wardy_mk]

Hello. I did fresh installs of both Cinema 4D and Corona on both machines.
Installed more RAM into the machine to take it to 128gb
I can render both scenes on each computer when I assign 'full' license to each one.
However, I can't even render the simplest of scenes (one cube, floor and HRDI) on TR without an out of memory error.
It may be worth noting that this error happens before anything else. Literally crashes instantly, no asset downloading, nothing.
I thought it was the hard drive being full but I've now got 70gb and I've assigned the cache paths etc to an empty internal 2TB SSD.

I'm fresh out of ideas, and so is ChatGPT!

[maru]

What are your exact C4D and Corona versions? I tried looking for similar reports and there are similar ones on the forum, but I couldn't find any solution. Do you have any IES lights in your scene? If yes, can you try deleting them and see if the RAM issue remains?

[wardy_mk]

Hi. Sorry for the late reply.
Attached is my corona version.
This error will happen with even the most simple scene. A cube on a plan with an HRDI and it'll error out.
Any ideas?

[maru]

Can you check if the same happens when you install Corona 13 on both machines?
We will try setting a Mac and a Windows machine and see if we can reproduce the problem.

[wardy_mk]

Wow, I thought I had the latest ones!
Will do that now!

[wardy_mk]

I think I may have found the crux of the issue
When looking at the console on the PC team rendering machine I can see that it "could not acquire rendering licence. All the licences for this product are currently engaged. Rendering was cancelled - corona is not activated!"

However, when I open the Maxon app on both machines you can clearly see it IS assigned onto the PC.
I've closed, re-assigned, opened - unassigned, swapped, etc, etc several times and the same thing happens.

Getting closer to the solution perhaps...!

[wardy_mk]

ALSO, I have just noticed when I got down into "About and Licencing" in the corona tab in the team render client box it brings up the "About Corona" box with the version number, etc. When I click on License server it takes me through to the web page showing licences. On that, I can see the "Corona Render Node" licence is available.

This is obviously the crux of the problem here.

Any ideas? No matter what I do on the Maxon App (from PC or from Mac) this license won't assign to the PC...

[maru]

Hi, the Maxon App only affects your Cinema 4D license, not Corona or other Chaos products.
The error message says that Corona is not activated. Corona licenses can be checked by going to the Chaos License Server - http://localhost:30304/
Do you have enough Corona licenses to render on your 2 machines?

[wardy_mk]

Well I have a Corona Universal license for my Mac and there's a Corona Render Node license that says "available" on there.
I can't seem to assign it to my PC. Is there some way of doing that?

[maru]

One license consists of two things: a GUI license, which is used for displaying and using the software UI, and a render node license, which is used for rendering.
If you have 2 computers and you are rendering on both of them, then you need 2 render node licenses.

[wardy_mk]

Strange, when did that happen?

Can you give me details on the pricing of a render node please?

[TomG]

Render Node pricing is at https://www.chaos.com/corona/render-nodes#pricing

This happened with Corona 8, in 2022 and announced in advance in 2021 at https://www.chaos.com/blog/corona-in-2022-new-features-visuals-licensing-and-more

As described there, anyone who had a subscription before 8, and who kept that subscription active without a break, still gets the 3 free render nodes that came with earlier versions of Corona up to and including today. Any subscriptions started since the release of 8 though do not include additional render nodes.

[wardy_mk]

ahh thanks, just about missed the start then. Thanks, I'll get onto it!