I just followed this nice and simple tutorial on use of the alpha channel.
It unfortunately doesn’t cover what I need in order to acheive the results I would like.
I was wondering; is there a way to render shadows in the transparent alpha area(s)? I am assuming I will need a plane that the shadows are cast on, but could that plane be set to alpha/transparent (except where shadows are cast on it)?
I hope I do not sound confusing. Any help will be kindly appreciated.