How do I make a 3D-Object of this Xara-Shape?

[emel]

You will always need a 3D program to do this kind of bridging.
I'm enclosing a obj file generated in MoI. The advantage of MoI is the clean meshes it produces, very superior to most of the app I know including C4D.
Just open it (import) it to Bryce and get the picture.

Cheers

Emanuel
www.homographicus.com