This is my first post, so hello everyone :).
I’m rendering an image like this one: http://www.pasteall.org/pic/13087
I want to “extract” the shadow of the object, but keep the relative alpha. I’ve tried using renderlayers, but my shadow is completely black.
If I cannot use Blender to do this, maybe I can render my images with a completely white floor (like this example) and try to extract the shadow using Gimp’s “color to alpha”, but I wanted a cleaner method if possible.
Thanks in advance!