Facebook now supports 3D embeds via Sketchfab(blog.sketchfab.com)
blog.sketchfab.com
Facebook now supports 3D embeds via Sketchfab
http://blog.sketchfab.com/post/112153509704/facebook-now-supports-sketchfab-3d-embeds
http://blog.sketchfab.com/post/112153509704/facebook-now-supports-sketchfab-3d-embeds
Just tested it with our product ;)
https://www.facebook.com/smiirl/posts/621966491269880