Yesterday, I saw a demo of ZAM 3D by Mike Soucie & Jim Foley of Electric Rain. So I thought I'd give the tool a try.
I am still quite new to the 3D world. But, I found ZAM 3D quite useful. It took me a little time to get used to the UI and figure things out, but I was able to create a simple 3D model using basic primitives in less than an hour, give it some predefined animation, export it as a control template and bring it into Expression Interactive Designer. I was then able to apply the template to controls within EID.
There is still some work to be done with round tripping between ZAM 3D and EID. But it is a neat tool for someone interested in creating a simple 3D model with some animation effects, textures etc and then using it in EID.
If you know of any more tools out there that export to WPF, I would love to hear about it and give it a try. Also, if you already have a tool and are interested in integrating your tool with the EID workflow, let me know.