Smoke particle system using an old vfx trick of scaled and rotating single sprite texture in WebGL, plus some additive blending for extra sass :)
Color of smoke may be changed by modifying "color" attribute for smokeMaterial on line 45.
Performance improvement can be had by reducing number of particles, and/or removing "opacity" setting from smokeTex (png will supply opacity, opacity setting simply allows us to "tone it back" or make it slightly more transparent)
Low hanging fruit for visual
Complete source of the minisite, also available on bitbucket - https://bitbucket.org/mjkl/reykjavik-rocks. Using YouTube api for background vid (direct vid link: http://youtu.be/E4tRyYxrU5w) + few css transitions + site is fully responsive (well, it's semi-responsive when embedded in an iframe here ;]).
Design by Jonni - http://skapalon.is, coded by Mjkl - http://ccrch.com.
& check the page @ original location: http://Reykjavik.Rocks
Enjoy! :)
#WHOSHARESWINS
双面胶