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Welcome to my blog, which was once a mailing list of the same name and is still generated by mail. Please reply via the "comment" links.

Always interested in offers/projects/new ideas. Eclectic experience in fields like: numerical computing; Python web; Java enterprise; functional languages; GPGPU; SQL databases; etc. Based in Santiago, Chile; telecommute worldwide. CV; email.

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Speculative Contacts (Stable Collision Physics)

From: andrew cooke <andrew@...>

Date: Tue, 12 Apr 2011 09:35:45 -0300

Simulating objects banging into each other is hard because we use finite
timestemps, which means that we "miss" the actual moment of collision.  The
approximations used to handle this can make the system unstable.

Here's an approach that, apparently, gives a stable solution:
http://www.wildbunny.co.uk/blog/2011/03/25/speculative-contacts-an-continuous-collision-engine-approach-part-1/
http://altdevblogaday.org/2011/04/11/unexpected-speculative-stability/

Andrew

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