Re: Kinematic Collision

Pierre Terdiman wrote:
> Unless something really changed in the 2 years I spent
> outside of the physics world, computing a good
> depenetration vector was not so easy. [...] In any
> case *not* running any of those algorithms was certainly
> faster than doing so, in the context of a character
> controller. So that's what we did.

I think a lot of people are overthinking character collision
detection and think you need volumetric representation
with sweep tests, etc.

When in actuality you can often get away with a few line
segment probes to detect collision with the world and use
a simple capsule test (or similar) to avoid character-
character interpenetration.

Keep it simple.

Christer Ericson, Director of Tools and Technology
Sony Computer Entertainment, Santa Monica


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