IGN AU: This is a proprietary engine?
Grant Collier: Yeah, this is all proprietary. I don't know if you noticed but in situations where the enemies aren't matching you in technology, they're going to use other things; we want them to be intelligent. So when we were in a dark area, they would launch off flares to illuminate the player, and even with the lighting engine, it works in conjunction with the character model so you'll see the light wash across, not just the area and the ground, but the view model, and shadows will move across the view model. So, the lighting engine, the shadows, the self shadowing, the particle system, the procedural clutter that we have around, y'know, I think all of those are really cutting edge. I'd say physics engine, but everyone has a physics engine now.