Hello, I was wondering if someone could help me with following problem. I want to create something like this http://www.shutterstock.com/video/clip-4668353-stock-footage-flickering-particles-loop-blue.html but only 2 options crossed my mind: 1. with sprite kit it's probably impossible. If there is too many particles, frame rate is killed, and if there's too few it doesn't look good. Another problem is that I want to scale up and then scale down particles, but particle editor offers only one direction at a time. 2. with video it is possible but I don't know if it's a good idea. Also don't know which resolution to choose for both iPhone and iPad, which format and size. It can drain battery quickly probably and use too much space. Every advice is appreciated and I would love to hear some suggestions. Thanks.