We're using Ornatrix with Renderman 22, and it seems to be working well.
One observation though: the curves that are outputted by the procedural seem to always have normals on them - would it be possible to have this turned off? Since 22.x, RenderMan does not have a separate "round curve" attribute that can be forced, so any curves that come out of Ornatrix are rendered as flat ribbons. Curves that don't supply normals are automatically rendered as round curves that mimic realistic hair much better.
Thanks for considering,
Simo
