Volumetric material and alpha channel

[poisondonuts]

I cannot for the life of me get a volumetric material to show up in any form of mask or alpha channel.  I don't know if this is by design, or I'm missing some checkbox somewhere to turn them on. 

Clouds, Global Fog, everything is just black in any kind of mask/alpha.  The only element that does seem to recognize them is the volumetric pass, but that seems to be a color pass of the volumetrics, not a true mask.

Sorry if this is a simple fix that I'm missing, or if it's been addressed before.  I did a search, but saw nothing about it.

[maru]

Looks like it is currently by design, but also a feature request already: https://forum.corona-renderer.com/index.php/topic,17010.msg107038.html#msg107038

[pokoy]

+1! Very important.

[poisondonuts]

So I'm not crazy.  That's good I guess.  Thanks for the response, hope it gets fixed soon.