Finally the Advanced Lightning Model * IMPORTANT: it cannot be switched on without Atmosferic Shaders*.
As you can see the the light is being bounced off things, which create shines. Algorithms works with Materials (Basic texture Shine texture)
Because objects can have more than one texturing layer it is possible to make highly realistic one. Like in this example the weights after a lot of polishing.

Advanced Lightnig model also enables light projectors (You can set an object to be light source and add a texture it will radiate on the wall/floor/avatar, etc.)

There are plenty of tutorials how to do that - you learn something new, but also having fun - as you get results almost immediately.