Hey thats pretty cool. I especially like the windows & the anime chick

The particle system looks to have the standard basic stuff, blending between two colors, spawn cone ( which is a cool feature ), gravity, basic collision, and size lerping. You might should look into adding variable lifetimes and sizes. That'll kill some of the uniformity you have now ( which is unnatural ). Also adding the ability to load a property sheet of an emitter would be nice. When doing a demo though, its easier to have all of the properties modifiable in real time ( Like you have now , as long as you expose all of the variables), but once you start using it for a game or something, it'll be simpler to load it from a file. Perhaps you could add a 'save current settings' option to your viewer for later use.
[edited by - Hawkeye3 on August 11, 2003 5:44:18 PM]