That seems to be some very well commented code :P
For those it doesn´t start, download the latest dx version here:
http://www.microsoft.com/downloads/detai...;DisplayLang=encpu + density map on gpu: 23,675sec the result runs with about 55fps
gpu: 3,211sec but there are several faces missing and it runs with "only" 20fps
gpu + weld on cpu: 54,041sec runs also with about 20fps and is also missing faces...
It looks very cool :P
I am just missing some blur and disortion of the "clouds"