Fog

Fog is a rendering feature intended for obscuring the player's view distance, usually for colored atmospherics or for seamlessly occluding sharp boundaries such as unloaded chunks. While traditionally referring to render distance, there are many other types of fog that can be encountered in-game under specific circumstances.

This refers to fog that is dependent of the render distance, which includes air fog in the Overworld and the End in Bedrock Edition, or general fog in all dimensions in Java Edition.

The sight distance in the render distance fog is equal to the render distance, which begins to appear at 92% of the render distance. Objects from the sky are not faded, making it appear in the shape of a cylinder. Its color depends mainly on the biome the camera is in, and is affected by: