...another benifit of doing the vertex-correlation on the fly is that it pretty much eliminates all of your memory problems (!).

You might be thinking - "yeah, but it would be faster if I only had to compute the correlations once", but my contention (from recent posts above) is that I think you're going to have to re-compute them for each type of morph anyway (ie. nose, vs ear, vs lips... as the user re-positions the figures to line them up).  Also, since you would now only be computing the matches for the local morph area, the savings should be huge, relative to other methods.

Again, non of this is relevent to a 'shape-matching' approach, only for a 'morph-matching' approach.  If you want to make Syndey's head look like V3's head (or visa-versa), you need another system :).

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