Shit, i can finally log in. Remove my other account. For soem reason i couldn't log i nto this so i made another one to complain.
I've been working on a realistic and not so demanding psuedo shadows caster with some REALLY convincing results. It only supports one light (and that light currently follows the player), although it could be modified for more lights.
As well as this amazing light effect the game also features some state of the art bumpmapping and refraction.
The attached screenshot really doesn't do the game justice. Give it a try
DEMO https://dl.dropboxusercontent.com/u/133594057/shadecast.zip <<<<<