(Yeah I'm full of it tonight!)
Just in case anyone is wondering why we're so keen on tweening, it's just that when I started my engine I tried some alternatives but found the tweening method gave the smoothest, most predictable animation of walking people that I'd seen, especially on a slower machine that can easily drop below 30fps.
The frames might drop, but the character will still be where he should be in 2 secs time, and e.g. landing on his right foot as he should be.
And of course the same goes (even more crucially) for jaw movement/lipsync.
Just in case anyone is wondering why we're so keen on tweening, it's just that when I started my engine I tried some alternatives but found the tweening method gave the smoothest, most predictable animation of walking people that I'd seen, especially on a slower machine that can easily drop below 30fps.
The frames might drop, but the character will still be where he should be in 2 secs time, and e.g. landing on his right foot as he should be.
And of course the same goes (even more crucially) for jaw movement/lipsync.