Hello @Anonymous I see that you are visiting as a new member to the Inventor Forum.
Welcome to the Autodesk Community!
How much are you trying to spend on these .obj files and how generic do you want them to be?
I bought a drone (Mavic Pro - no affiliation just wanted compact fold design and motion track for snowboarding), flew it around the house on 2 second burst, brought into ReCap Photo stitched it all together, exported as .obj and it kept all the colors on the faces and worked with rendering.
Friday Pictures 10-13-17
It depends on how they are saved, inside ReCap Photo there were a ton of different export settings and types.
I exported each of them and imported into Inventor one by one, and one came in perfect with every corner of triangle able to make points from.
(I botched the capture came in 1:35 scale somehow but for first flight it was highly successful.)
It depends on the settings they exported and what program they used to make the .obj.
If you can find out that info it might be helpful.
What are you trying to do with the .obj within Inventor?
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