This paper describes a method to analyze the physical correctness
of an interpolated motion and also gives methods to modify
interpolation methods to make it more physically correct.
This paper divides motions into 3 phases.
First, flight phase where gravity is considered to be the only
force on the character. Second, contact phase where footskate,
static balance, and frictional properties should be satisfied.
Finally, transition phase.
Using this more as a pruning method to remove physically
incorrect transitions from the matchweb, thus reducing
the matchweb might give better visual results for matchwebs.