In order to avoid having too much objects to draw, it necessary to have a clipping. The problem with that, is that it's not really nice to look at.

In this screenshot, we clearly see the "end". The effect is not realistic.
In order to hide that, the easier way is to have a fog:

With that the render is better. In Daídalos, it will be possible to enable or not the fog, as well as configure the depth of field to adapt the game for most machines.