Just created a new video showing how to get a procedurally created texture from Modo inside of Octane Render, here's the result :-
Only baked for 1m 35s, colour correction only.
The video, shows how to go about using layered procedural noise, creating a quick and dirty UV map, saving that map with no light information and getting it into OR, link below :-
http://www.vimeo.com/9467890