I'm trying to have a helicopter flying above some clouds. The most elegant way to create clouds that I've seen is using the cloud generator add-on that comes included with blender. When rendering with BI, it works just fine, but in cycles all I can see is the original mesh/bounding box. I've messed around with some volume materials, but I can't figure it out.
What materials should I use? Which objects should I apply them to? I've read in several forums that cycles doesn't support some critical volume-related feature that the add-on used, but they were all old, and I think the features have been implemented since then.
I specifically want to use this add-on, not an alternative way to create clouds