Rendering Clouds pass with alpha channel?

[mash]

Hi, is there anyway to render clouds as a seperate EXR file with an alpha channel?
I can turn the atmosphere off but I don't see a way of saving the clouds with an alpha channel.
Thanks,
Michael

[rcallicotte]

Every time your render, you get the Alpha in the Temp folder.  You'll have to look for the coordinated Alpha.

[mash]

Ahh Ok thank you
michael