title: High CPU Usage with WebGL?
body: <p>I'm checking out the nightly builds of Firefox and Chromium with support of WebGL with a few demos and tutorials and I can't help but wonder about the extremely high CPU load they cause.</p>
  
  <p>A simple demo <a href="http://wakaba.c3.cx/w/puls.html" rel="nofollow noreferrer">like this one</a> runs at a sustained 60% of my dual core. The large version of <a href="http://cs.helsinki.fi/u/ilmarihe/metatunnel.html" rel="nofollow noreferrer">this one</a> maxes out the CPU to 100% and has some visible frame loss.<br>
  Chromium seems to be slightly better than firefox but not by much. I'm pretty sure that if these were desktop application the CPU load would be negligible.  </p>
  
  <p>So what's going on here? what is it doing? Running the simple scripts of these can't be that demanding. Is it the extra layer of security or something?</p>
  
  <hr>
  
  <p>Edit: I found the original demo which was porded to webgl here:
  <a href="http://rrrola.wz.cz/files/puls_win.zip" rel="nofollow noreferrer">http://rrrola.wz.cz/files/puls_win.zip</a></p>
  
  <p>Running this (on full screen) gets the CPU to a sustained 48% so maybe I was wrong...</p>