Essential Math Weblog Thoughts on math for games

3/13/2005

Post-GDC notes: Part 1

Filed under: General — Jim @ 10:01 pm

I’ve uploaded the latest tutorial slides to the site. I made a few changes, mostly removing demo links (which require specific paths and wouldn’t necessarily work) and replacing some of them with direct web links. I also fixed the positive and negative elements in the collision response slides. In case I missed one or two, basically if the relative velocity along the normal or the relative force along the normal is positive, then the objects will be pushed together. So the correction (either impulse or constraint force) is in the opposite direction of the normal, and needs to be negative.

I’ll be doing a few more updates throughout the week. Tomorrow I’ll upload the latest demo code, at least for Windows. There was also a lot of good conversation during the breaks and after the talk, so I’ll post some comments, corrections and clarifications based on that. So stay tuned.

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