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Journal of Aardvajk



Character Controller development

Posted by Aardvajk, 30 December 2012 · 528 views

Character Controller development I wrote a miniature level editor and have got the basics of a capsule-based character controller working now. It correctly collides with the various objects as you move it around, including sliding and resolving the awkward cases where resolving a collision with one shape causes a collision with another.To address this, I do the collision detection and re...


Christmas Adventures with Gilbert, Johnson and Keerthi

Posted by Aardvajk, 25 December 2012 · 690 views

Christmas Adventures with Gilbert, Johnson and Keerthi Seem to be getting there slowly. It is tough making this numerically stable but making progress. Just got some issues left with an infinite loop on the flat faces but I'm hoping the simplex at the time is close enough to the optimum.Funny, would have expected the infinite loop to occur around the curves, not the flat features. Seems to be the other way ar...


Visualising 3D Minkowski Sums

Posted by Aardvajk, 23 December 2012 · 542 views

Visualising 3D Minkowski Sums I've finished the development of the 2D GJK implementation, including both margin-based resolution for shallow penetrations and unit-circle sampling for approximate resolution for deeper checks and the time has come to start to try to implement this in 3D.Something that was very handy during working out the 2D version of the algorithm was that I could swe...





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