I'm using the Shadow/Matte material inside of 3DS Max and trying to get get the alpha of the image to display the shadow as a transparency. Image 1 is the building that I'm rendering out. Image 2 is currently how the alpha gets rendered out with the shadow being fully opaque. Image 3 is what I want to achieve with the shadow.
This is the material settings I have for the ground plane.
Any help would be appreciated.