Bullet is running inside Native Client while drawing, picking, and everything else is in HTML5 & JavaScript.This is a demo of Native Client (NaCl) Acceleration Modules. Using NaCl Acceleration Modules gives your web application written in JavaScript a speed boost. Try this demo out and see 400 rigid body objects being simulated in 2 milliseconds. That's 500 frames per second. All drawing, object picking is handled in JavaScript and the physics simulation runs in native C code. An application built on top of this NaCl AM uses a JavaScript API to control the physics engine. More information at: https://github.com/johnmccutchan/NaClAMBase
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