Add Fog in Your Game in Unity 3D

You can easily add fog to your Unity 3D game with just a few clicks. Fog is an amazing post-processing effect that comes with Unity. In order to enable fog in your scene, there are some steps you need to follow:

• Go to Window menu > Rendering > Lightning. See the screenshot below:
  
• After clicking on Lightning, another window will open where you have to choose the Environment tab.
  
• As you can see in the above image, you have to check the box for Fog under Other Settings. After selecting the Fog option, there are some fog settings options appear that are Color, Mode and Density.
• 

You can change the fog settings to meet your requirements. You can change the color of the fog from the Color options, change the Mode from the Mode option and the most important is Fog Density. Higher value of Density make the fog more dense and decrease the visibility.