Switching between cameras

Questions & Answers
1

I wrote a simple script to switch between cameras.

public var camera : GameObject;

function Start () { }

function Update () {
     if (Input.GetKeyDown (KeyCode.C))
          camera.active = true;
}

Nothing happens when I press C. I am very new to Unity code.
How can I make the camera switch on key?

2

var cam1 : Camera;
var cam2 : Camera;

      function Update () {
      if(Input.GetKeyDown("1")){
      cam1.enabled = true;
      cam2.enabled = false;
      }
     if(Input.GetKeyDown("2")){
      cam1.enabled = false;
      cam2.enabled = true;
     }
     }
3

You could use this modified version of your script - but don’t attach it to any of the cameras! Add it to some other object - an empty GameObject called CameraSwitcher, for instance:

var Camera1 : GameObject;
var Camera2 : GameObject;

function Start () {
  Camera1.active = false;
  Camera2.active = true;
}

function Update () {
  if (Input.GetKeyDown(KeyCode.C)) { // toggle cameras
    Camera1.active = !Camera1.active;
    Camera2.active = !Camera2.active;
  }
}

active is a GameObject property: if you set camera.active = false;, Unity actually does camera.gameObject.active = false; and print a warning in the console telling you to use camera.enabled instead. It’s better to declare the cameras as GameObjects and use active, because this activates/deactivates all components (very handy, because you can have only one AudioListener active in scene).

Since the GameObject is deactivated, its scripts will not execute Update anymore - that’s why you must attach your script to a 3rd object.