MOTION PATH VIA IK SPLINE

Interesting technique, using the 'offset' value of an IK spline to drive
a series of bones along a motion path curve. Of course..it doesn't work
on a curve on surface which is what I'm trying to figure out.

http://forums.cgsociety.org/showthread.php?f=88&t=259168&highlight=motion+path+tail

Flow object on a motion path curve on surface stretches the object like mad.

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