You can use the ParaWaterArea component to create a water area in your World. When a character enters the water, its movement mode automatically changes to swimming. In addition, when the camera enters the water collider, the underwater foggy effect will be created.

Note: The ParaWaterArea component must be used together with a BoxCollider that matches the 3D water space.

Component Properties

The ParaWaterArea component can be used to configure underwater fog parameters, which are the same as the global fog parameters.

Parameter Name	Type	Default Value	Description
Fog Mode	Enum	Linear	Defines the way the fog accumulates as the distance from the camera changes.
Fog	bool	true	Indicates whether to enable underwater fog.
Fog Start Distance	float	0.2	Sets the distance from the camera at which the fog starts fading in.
Fog End Distance	float	3.0	Sets the distance from the camera at which the fog completely obscures scene GameObjects.
Fog Color	Color	Gray	Uses the color picker to set the color the Unity uses to draw fog in the scene.
Fog Density	float	0.2	Controls fog density. A higher value means denser fog.