In the lighting post-process, the emissive areas are added. This very simple technique creates the illusion of self-luminous objects without complex light calculation. The picture gallery shows up the rendering steps.
Ambient & Backside Occlusion
The ambient light has been optimized. The simple brightness value has been replaced by a color value. This makes it possible to create various ambient moods. Another optimization is backside occlusion. In this case, the backside normals running parallel to the lightdirection are darkest illuminated.
Light in Action