Issue with Volume Grid and Volume Effect

Corona Corona for Cinema 4D Issues
1

I’m not sure if this is a bug or a known limitation.

  • create Corona Sky
  • activate volume effect in Sky
  • create a volume grid like you would use for fire, smoke, or clouds
  • if the camera is close to the VDB, the render looks fine
  • if I move the camera further away from the VDB, I get a box where the volume effect of the sky doesn’t work.
  • it does happen in IR and final
  • this gives me a nasty artifact that I need to remove in post

Corona 12 Update 1 Hotfix 1
C4D R20
Win 10

Can you reproduce it?
Issue.gif

2

Hello @lollolo,
Thank you for bringing this to our attention.
Could you please try using the latest Daily build and see if the issue persists?
I tried using the following setup, but couldn’t reproduce it:
-Cinema 4D S26, 2023, 2024, 2025
-Corona latest Daily Build
Looking forward to hearing from you soon.
Kind regards.

3

Thank you, Benjamin, for your reply. I downloaded the latest daily and tested it again. The issue is still there.
I sent you a PM with a link for downloading the scene and a video.

Thanks and have a nice day