Um, I think the yellow mage is out.

Besides the dragon's new eating habit there's now an expertly modelled pine tree (with collision detection), I made the borders of the snow slopes transparent and smoothed the height map a bit more.

I also uncovered a serious bug in the actor-matrix code - there was no way I could have got the rolling working the other day since it was all broken underneath (all matrices were transposed). Not sure how it worked at all...