Thx for the prompt, and helpful reply. And, a special thx for the kind, unexpected upgrade to the “Educational PRO” account! I really appreciate that.
Removing the big sphere and using a custom background could make for a nice solution. Thx for the suggestion, and the account type necessary to do it. And, a side benefit of the account is the annotation limit extended to 20. That’s gonna be quite helpful, too:)
OK, ya’ll keep up the great work on your end, and I’ll keep creating content:)…
P.S. I’m still gonna explore the “sphere worlds” idea. Originally, I had the model surrounded by the images, but things just seemed to get in the way of each other. New idea, still using spheres: put objects in their own, individual sphere, then use annotations to move between/within. Could even label the spheres from outside, plus have a different texture from the inside. Hm, does Sketchfab support 2-sided materials? I will just have to make two separate sphere shells? Either way, may make a nice presentation.
P.P.S. Selectively excluding objects from receiving (or casting) shadows could be helpful.