My understanding of it is this: IBL is Image based lighting and it reads the lighting set up of an image [jpg, png whatever] and does the light settings from the image. Apparently you need to use a sphere or something to do it right. See, I'm already confused which is why I still haven't tried it yet! No doubt an expert will be along shortly to educate both of us [rofl]. thefixer, poser coord.

Injustice will be avenged.
Cofiwch Dryweryn.