www.kraytracing.com

Hi,

I use a white sphere for GI and a plane to have my background (a picture : trees, sky, beach).

How do you setup the background to not affect the lightning.
I have a difference with and without the background ...

Do you export a buffer wuth alpha to composite in Photoshop ?

thank you for your advice.

cheers
mk

On the backgroud picture object turn off all shadow flags (cast, receive, self) and check "unseen by GI".

That should do it.