Anyway, I built a model in inches in Creo. Exported OBJs from there for C4D. When in C4D I realized I should have been working in millimeters. No problem...OBJ does not export units anyway, so in C4D I simply changed to millimeters and everything is fine. The problem is going through the OctaneExporter and Octane phases. Somewhere in that area, the file scale gets screwed up on its way into Octane. For instance, I let the OctaneExporter use C4D's document scale (millimeters) and on the Octane side, I set my OBJ mesh import scale to millimeters, too. But when I move an object in Octane (which I assume is in meters), the movement is off by a scale of about 60 times too small. As an example, I want to move the object 20mm. That equals .02m. So I enter .02, since as I understand it, Octane works in meters natively. But .02m ends up being about 60 times too large. If I set the movement to .00033, that turns out to be about right. So clearly, the mesh imported 60 times too small. In addition, regardless of what I set Octane's import scale to, it has no effect on the imported mesh size. So it looks like a combination of scaling problem in the OctaneExporter for C4D, and also an inactive units selection in Octane.
