I have, for a LibreOffice Writer document, a need to insert Universal 3D image files and have the zoom in, orbit view, and animation playback functions fully functional after being exported to PDF. 3D is a trend, so the day will come when it is just as important to support 3D imagery as it is any other 2D image format currently supported.
Universal 3D image files have the .u3d extension.
About Universal 3D image files:
Valid enhancement request. Set status to NEW.
patch appreciated ;-)
Best regards. JBF