Author Topic: Corona get stuck when using an .ies from Asset Browser in a cloned light  (Read 308 times)

2023-11-04, 09:40:49

John_Do

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Hi, the title pretty much says it all. It may sounds niche but in retail I use extensively .ies light in Cloner to reproduce spot lighting, and I found this bug.

- Create a Corona Light
- Enable ies and use one .ies file from the Asset Browser
- Parent the light to a Cloner
- Start IR = works
- Start a production render = Corona get stuck at "Preparing Scene Data" forever, using between 30 and 60% of CPU.

Its only Corona which get stuck, C4D is still working in this scenario although I can't closing because it is waiting for Corona to stop the rendering process.

Note that unfortunately making the Cloner editable and get individual instances doesn't change anything, BUT changing the path to the .ies for something absolute is working ( copying the .ies somewhere on the disk and using the filepath ).


2023-11-06, 09:31:37
Reply #1

Beanzvision

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Hi, what version of C4D are you using? Does it work if using an ies from the Corona folder? I tried to reproduce it here but could not.

Bengamin Jerrems l chaos-corona.com
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2023-11-08, 09:16:24
Reply #2

John_Do

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C4D 2023.2.2 + Corona 10h1, my prod setup.

Tried on 2024 and the second last dailybuild and it doesn't happen.