Underwater Effects

Under the sea ♬ ♩ ♪

You can already set the color, transparency and refraction of the water surface when looked at from below, but maybe you want additional underwater effects.

Post processing volume

You can set up a post processing box volume right under the water level and change it to look like the scene is underwater. Now, when the player goes below the water level, it will look like he's underwater.

Some effects that I use are Color Adjustments, Vignette, and Panini Projection.

Underwater Caustics

Caustics can be rendered underwater using the custom renderer feature. There is a limitation however. Caustics will be limited to the height of the camera. So when you go under water and look up, the caustics will not show up above the camera. You can make this artifact less apparent by lowering the depth at which caustics are rendered and setting the fade to 1.