Alpha Channels in Rhino with Maxwell

[TomA]

Is it possible to export alpha channels from Maxwell/Rhino to use as object selections in Photoshop, and if so how?

 

 

I know you can do this in Max with the default scanline renderer and the matte/shadow material and a standard material with a bright self illuminating colour, but don't know how to achieve the save result in Rhino with Maxwell.

 

 

Thanks