Hello,

I'll be very happy to can use an HDRi Sky timelapse on Iclone, but I don't see if it's possible, somebody knows more?

Here's one on free download if you like to try, but it's big to download.
https://hdrmaps.com/free-hdri-sky-timelapse/

The HDRi slot only takes image files, although you can use multiple images and then use key frames to switch.

For a video you could try to use a sky dome prop and then use the HDRi as a video texture. The provided format may be a problem though as that would need to be regular video.

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76% of original size (was 661x19) - Click to enlarge

Thank you animagic, this timelapse sky (and some other I saw on internet) are done with multiple images (EXR files).
Ok, I understand, I've just to do a test with "Add new IBL clip" it works fine, thank you :)