Verlet collision with impulse preservation

Nov. 29, 2010
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This article presents a system to integrate verlet physics collision with preservation of impulse. Normally verlet physics annihilates a lot of energy from a system, which makes it very stable but also quite unrealistic. Additionally simple methods of preserving impulse yield very unstable systems, a limitation which can be overcome by two steps of integration, one for at-rest acceleration canceling, and one with impulse preservation.

OpenGL 4 Tessellation

Nov. 07, 2010
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I bought a new graphics card which is OpenGL 4.1 compatible. And since tessellation is hot, this article explains how to use tessellation to LOD large terrains easily.