HalfdanJ » bullet physics http://halfdanj.dk/blog Jonas Jongejan Sat, 15 May 2010 23:58:37 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 TimeMap Lab http://halfdanj.dk/blog/2009/01/timemap-lab/ http://halfdanj.dk/blog/2009/01/timemap-lab/#comments Tue, 27 Jan 2009 21:48:26 +0000 Jonas Jongejan http://halfdanj.dk/blog/?p=197 The last 2 weeks i have been working with Ole Kristensen on developing tools for the next dance performance by Ole and Tina Tarpgaard (the same persons as Body Navigation). The main tool we have been programming is a interactive physics simulation of letters falling down when something (here a dancer) touches it, or in other ways react in physical simulated way. We have been coding in OpenFrameworks (C++), and used the open-source physics engine Bullet to build up our code, and used some standard OpenCV blob tracking to detect a person on a stage.

We have also been working on making a new blob library that is not a perfect match around a body, but instead like a bubble with a person inside. It can give some really nice organic effect when the forces are very low in the bobble, and it just follows slowly the movement of the body. This is build by me with some basic physics laws.

For now we got this video of it, but we will cut something better later

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