Is it possible to hide an object from certain cameras without layers?

Case: FPS multiplayer, you have 2 meshes, the FPV and the TPV, want to hide the 3rd person mesh but other players use the layer

 

Is this networked multiplayer or couch multiplayer? If it's networked, then you shouldn't need layers. Just have the client code only enable the game object / renderer components you need for that client and don't sync them directly.

If it's couch multiplayer, then you'll probably want to use layers. Alternatively you could manually disable / enable renderer components per camera using scripts that trigger from

Camera.OnPreCull

or

Camera.OnPreRender

. Note, that's a capital

On

, not lower case

on

.

Camera.onPreCull

is a delgate you can use that fires for all cameras, where as

Camera.OnPreCull

is a function that gets called only on script components attached to a game object with a

Camera

component, and only get called when that specific camera is about to render.