I'm searching for a UML tool that can comprehensively 3D visualize a big
(class) diagram.

Something like a crossover between Google Sketchup and a proper modelling
tool - or a tool which uses an XMI export as a base for its 3D
Ideally it would also provide an interactive presentation mode (add layers,
'zoom' into entities to view details, etc) and a video export.

I've been evaluating some tools - but what I've found are more or less
just PoCs.

Can anyone suggest such a tool?
Or has anyone even got some experience with this?