Any good looking 3D Game or Techdemo that makes use of deferred rendering?

Question

For a research work arround the topic of deferred rendering/shading I'm looking for some opensource 3D game, benchmark or Techdemo upon which I can develop my examples. Of course it would be good if the game/demo would be visually appealing and as close to modern gamegraphics as possible.

I considered Doom3, but unfortunately the released version does not use deferred rendering.

While there are opensource game-engines that support deferred rendering, it's too much work to create an actual game / content so i'm looking not just for an engine but something that already has content and looks good.

Can anyone suggest something?

Answer 1

There's a nice little demo for XNA 4.0 here.