how do you mean lightwrap?

lightwrap? after effects effect? im using cs 5.5. cant see lightwrap in there...the other light effects dont really work.

yeah, no you're right, the alpha would work.

its how to apply it in after effects, to mask off the sky and then be able to blur it that im stuck on.

nuke has a lightwrap function doesnt it? or am i thinking of god rays..