Hello PixelNAUTS_Alex, I'm glad you like InstantOC, thanks! I haven't indeed updated the manual yet with useful occludee info! Sorry You basically have to follow this steps: create a new layer (call it occludees for instance) choose this layer in the IOCcam script as the "Occludee Layer" add the IOClod script manually to the objects you want to behave like occludees they also must have a collider like regular IOC obejcts and must be on an IOC managed layer (NOT the occludee layer!!!) mark the "occludee" checkbox of the IOClod script That's it! A couple of notes, occludees in InstantOC are really meant only for transparent objects, as there is no computation difference by marking some objects as occludees. The occludee layer is needed, but automatically managed by InstantOC, do not place objects on this layer. Hope this helps, let me know how it goes!