Unfortunately there is minimal control over keyframes and interpolation at this point. Major work will be done in this area in the first half of 2010, as we finish the Animation Module. In the meantime, you have two options. First, adding an additional keyframe immediately before or after a problem area's keyframe can help stabilize things. Second, you can export the terrain and build camera motions in another app then export in CHAN format (Nuke) and import to TG2. Others have been able to create smooth motions using external Excel (or other) scripting and directly editing the TGD XML data, essentially using 1 keyframe per frame.
- Oshyan