inFAMOUS: Second Son looks absolutely stunning, and it owes part of its beauty to its advanced lighting and reflection effects. At the Game Developers Conference Lead Engine Programmer Adrian Bentley showcased a few pictures of the game with and without some of those effects.
Below you can check out those pictures, without each effect at the top, with it at the bottom, followed by an animated GIF for easy comparison (click on it to enlarge and start the animation).
Indirect Diffuse Lighting
Indirect Specular Lighting 1
Indirect Specular Lighting 2
If you want to know more abut inFAMOUS: Second Son‘s engine and effects, and about how they use the hardware capabilities of the PS4, you can download all the slides of the presentation here, or check out my recap of the most relevant points.