I built a little web app to play around with different options: http://nixterrimus.github.io/Triangle-Play-App/
One issue though: I had to switch to Chrome to get it to work - in Safari I just get a bunch of SecurityErrors...
http://nixterrimus.github.io/Triangle-Play-App/
I guess this is a chrome only demo for now, I'll see if I can't dig into this a little later this afternoon.
I noticed this: Not only does noise slow down rendering, it also increases file size for the downloaded image.
One issue though: I had to switch to Chrome to get it to work - in Safari I just get a bunch of SecurityErrors...