Re: [Algorithms] Kinematic Collision

[Jon W. <jw...@gm...>]

pontus birgersson wrote:
> > However, in general, you'll want the animation to be driven by the
> > movement, and not the other way around. Each frame, you determine how
> > far you've traveled since the last frame, and forward the animation an
> > appropriate amount to avoid foot sliding. (The animation is marked up,
> > or you measure this based on certain named bones).

> Not sure exactly how this would benefit a fighting move though. Where 
> would the initial movement come from if not from the animation?
>

Physics. Because you wanted to include a physics engine. If you don't 
use a physics engine, you don't have that option.

> If I understand you correctly this is exactly what I did my candidate 
> thesis on, converting animation data into forces which are then 
> applied to a ragdoll which correspond to the rig. I never managed to 
> get it looking as well as I'd like though I only tried with explicit 
> integration medthods, and an implicit method would probably lend 
> itself much better to this.
>

That'd be good to find out :-)

>
> > "desires" -- "I want to land my left fist on his nose in 400
> > milliseconds, and I think it will be *there* at that time." Similar to
> > Natural Motion / Endorphin in real-time, with player guidance,
> > perhaps.

> Maybe I should look into endorphin, kind of pricy though if I remember 
> correctly.

Usually, it's the case that quality has to cost, because there is much 
less competition the more specialization and higher quality you want. 
The cheap generic crap is just that, cheap. That doesn't mean that 
everything that's expensive is good, of course, but it does mean that 
it's generally hard to be consistently good without being expensive.

Middleware seems to start at the $250 range (old Torque, C4 engine, 
etc), take a leap to the $5k-$10k+ range (Granny, FMOD, etc), take 
another leap to the $50k range (physics packages etc), and then have a 
top strata at $150k+ (full engines, scene graphs, integrated editors, 
etc). Within that range, I wouldn't think endorphin is entirely out of 
reason.

Sincerely,

jw




-- 

  Revenge is the most pointless and damaging of human desires.