There are two ways to import models from Cinema4D into Unity:
- Export manually from Cinema4D (using FBX6/FBX2010) and then import that FBX file in Unity. That should work just fine with R12, or even better than R11.5, because I believe that they fixed some problems/bugs.
- Drop C4D file directly into Unity and expect Unity to do the conversion. This doesn’t work by default, because the conversion from C4D to FBX is based on Cinema4D plugin (that is written by Unity) and the plugin doesn’t work in R12, because it’s based on R11.5 SDK. We (Unity) have to fix this problem and we will do that as soon as we can.
I’ll update this thread once I have more news.
If you want to ask something or to read long and messy discussion you can do it here:
http://forum.unity3d.com/threads/59310-Cinema4D-R12-and-Unity-any-experiances-yet