Sorry for my basic question, but let me to understand if is possible, like in this example made in Cinema4d native (https://www.youtube.com/watch?v=TvZiDsODf8k):
1) having an unique object (like a simple house) with 2 or 3 materials applied in cubic projection.
2) make a bake of the object using an Octane Camera
3) have as a result a single texture that I can re-applY to my object replacing all the previous materials.
The key is to know if is possible to do without to make the UV Unwrap procedure, since the objects to manage are so many...
Thanks to all.
Luca