yafray material - only shadow feature

hey everyone,
i need to make a draw-in to a real photo, and i wanted to apply only shadow on the plane below my model, but did not find the feature “ONLYSHADOW” in the yafray material tab…

http://www.weirdhat.com/blender/compositing2/screenshot5.jpg

is there a way around?
thanks guys :o

is my question understanable?
or perhaps it is too stupid to answer…but to me it any advise would be a big kick!!! thanx

I haven’t been able to find it either. Perhaps Yafray doesn’t support OnlyShadow?

In a related question, is there any way to keep an onlyshadow object from showing the sky through itself if there is something behind it?