Hi!
I just stumbled over the fantastic paper of Ladislav Kavan which describes a robust animation blending technique in shader avoiding the typical artifacts of linear blending.
And its still quiet efficient...
See here: http://isg.cs.tcd.ie/projects/DualQuaternions/
It provides some nice videos, CG example code and the paper itself, ofcourse.
xad
Skinning with Dual QUaternions
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xadhoom
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