I would like to display a 3D model in a WPF application (the model is prepared in an external tool such as blender). What is the best practice? Are there any tools to facilitate this? How about rotation/transform performance?
Zam3d is was a great tool for converting 3D Models into Xaml, but it looks like Electric Rain has gone defunct, you may be able to find a copy somewhere by Googling for it. I highly recomend Petzold's book 3D Programming for Windows. There are also a ton of tutorials online, I would google for some modern ones.