Author Topic: Strange situation with Corona Render! Cinema 4D is very difficult to open!  (Read 610 times)

2025-06-11, 09:19:06

nicuv

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Hello friends, it's been a long time since I posted here! I gave up rendering with Corona in Cinema 4D for a while!
But I'm back and I have a very strange situation. After installing Cinema 4D it opens very slowly, meaning it takes somewhere around 50, 60 seconds!
I encountered the same situation with Vray, which I prefer for GPU rendering, so it's something related to Chaos!
Computer configuration: SSD Kingston FURY Renegade M2, Intel i914900k, Gigabite RTX 4070TI Super, 64GB RAM!

2025-06-12, 10:04:01
Reply #1

nicuv

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Hey, has anyone encountered such a situation?

2025-06-13, 12:12:57
Reply #2

CambridgeCreative

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Hi Nicuv,

I had a similar problem and opening Cinema 4D hung at around 65% loading plugins. It was at a time that i was using my Chaos licence between home and work on idifferent PCs, so I manually started the Chaos Licence Server whenever I changed PC and it seemed to speed up the loading.

If you haven't already, maybe try that.

2025-06-13, 14:20:19
Reply #3

nicuv

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Thank you very much, it seems to be working!

2025-06-13, 14:44:30
Reply #4

CambridgeCreative

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2025-06-17, 10:16:49
Reply #5

Stefan-L

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we have the same on bigger scenes, but here it is related to file search paths, lic server is running.

turn them off when opening a corona scene and it opens fast, then after open you can turn them on again.
it seems something corona(and maybe vray) does wrong with the search paths at opening. rendering works fast and fine though,

it must be some problem at star when it tried togenerated the previews or editor shading(only my guess)

2025-06-20, 15:00:01
Reply #6

maru

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I had a similar problem and opening Cinema 4D hung at around 65% loading plugins. It was at a time that i was using my Chaos licence between home and work on idifferent PCs, so I manually started the Chaos Licence Server whenever I changed PC and it seemed to speed up the loading.
Hi, do you mean starting the License Server from the Start menu did the trick? Or how would you start it?

we have the same on bigger scenes, but here it is related to file search paths, lic server is running.

turn them off when opening a corona scene and it opens fast, then after open you can turn them on again.
it seems something corona(and maybe vray) does wrong with the search paths at opening. rendering works fast and fine though,

it must be some problem at star when it tried togenerated the previews or editor shading(only my guess)
What exactly do you mean by file search paths? Could you tell me where to find this setting?
Marcin Miodek | chaos-corona.com
3D Support Team Lead - Corona | contact us

2025-06-23, 11:18:25
Reply #7

nicuv

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Stefan-L, no need anymore, CambridgeCreative's solution was ok! I set Chaos Licence Server to start automatically with Windows and it's much better! Thanks!

2025-06-23, 23:22:47
Reply #8

Stefan-L

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"What exactly do you mean by file search paths? Could you tell me where to find this setting?"

in c4d prefs the file settings, there you put the paths, where c4d then searches the used assets and tetxures. it is a very needed thing as it isnt always possible to use absolute paths (which is the fastest method to load textures).

we have there usually 2-3 qaxctive search paths to the project folder, some assets folders and often some folder where we imported other project stuff.
i reported this already some versions of corona ago.it improved in v12 but is stil there.