Attached Link: http://www.renderosity.com/messages.ez?Form.ShowMessage=779883

Here is a link to an earlier similar thread. In post #11 I describe a technique for making fog that might be what you want. Hope this helps.

This is not my "second childhood". I'm not finished with the first one yet.

Time flies like an arrow; fruit flies like a banana.

"I'd like to die peacefully in my sleep like my grandfather....not screaming in terror like the passengers on his bus." - Jack Handy