I have a couple of questions about the new procedural cloud system ..
- does it work with the VRayDomeCamera?
- is it possible to place an object (like a plane or the moon) behind the clouds but in front of the sky?
- is it possible to output the clouds and sky separately to allow compositing?
*) It does, yes.
*) Nope.
*) Not directly, yet. A mask may be introduced, but you can do a conditional difference with a clear sky to get the mask in post right now. Notice that if you have Cirrus clouds, the mask may become quite transparent in places, so you may not be able to remove the sky cast on the clouds quite as easily.
Attached, the sample post-made mask (For the Sky, to be inverted and further refined, ofc.).