Not rendering objects after a certain distance?

How can I make objects not render and/or computr after a certain distance?

I have some fish in a lake using navmesh, and to optimize I'd like to not render them after a certain distance. It would be great if the navmesh for the culled fish would also not compute to further optimize .

I tried using lodgroup but the fish are still visible.

Thanks in advance!

 

On your camera change clipping planes and the far one. Reduce the number to the distance you want. The number equals one unit in Unity which is usually one meter. So set it to 50 and it will render out 50 meters. Play around until you get the distance you like.

 

If you want everything to stop rendering after a certain distance, you do that with the camera's far clipping plane setting. If you want only certain objects to stop rendering at a specific distance, but you want to keep rendering other objects farther, you use layerCullDistances. To do that you set the far clipping plane to the distance of the furthest object you want to render, you set the objects you want to stop rendering closer to their own layer, and you set the cull distance for that layer to that shorter distance.

https://docs.unity3d.com/ScriptReference/Camera-layerCullDistances.html