Light and shadow
- A new lighting model: sun, sky and lamps add up properly instead of darkening the picture
- Cascaded sun and moon shadows with a soft edge that widens with distance
- Ambient occlusion from real surface normals, and fine contact shadows
- Sky light blocked by roofs and overhangs - a street under an awning stays dark
- The game's flat fake shadows removed (dirt stains along walls and kerbs stay)












