@mhdmhd We're working on it!
We actually are working on a Nuke plugin that we hope to release later this year.
If you're using Maxwell, Altus is integrated in Maxwell Render 4.1. Try us out! This is the kind of integration we're aiming for with other renderers. What renderers do you use?
We have some outdated scripts for Maya and 3ds Max integration, but we no longer support them and I don't think they still work. I'd be happy to give you a link to them if you'd like a starting point.