Ok, since alot of the games today (next gen) are using motion blur, i have some questions on what exactly and how motion blur is achieved. I know a little of what it might be. Does it consist of some type of alpha layer, and then just keep adding alpha layers? I'm not sure how this is achieved. So if anyone knows, please tell me. Note that I don't want specific code since I am no where near that advanced. But just curious.