title: How to make an object invisible at a particular keyframe without moving it in Blender (2.59)?
body: <p>I'm quite new to blender, and I'm doing some experiments with it. </p>
  
  <p>I've been searching for a way to make an object disappear from sight at a particular key-frame, without moving it out of the camera view. E.g. at frame 1, cube is there, at (0, 0, 0) and at frame 2, it's not visible anymore, but still there at position (0,0,0), at frame 3 it gets visible again.</p>
  
  <p>After searching the web, I came upon <a href="http://catheads.net/2009/10/24/make-objects-appear-on-the-stage-blender-tutorial/" rel="noreferrer">this</a> page which suggests to move the object to another layer, but since it applies to blender 2.49, it seems the software has changed since then: I'm unable to find the 'Layer' option when inserting a key-frame. </p>
  
  <p>I've found some other sites but either they suggest to use a technique similar to the one linked above, or they suggest to change the alpha of the texture, which I'm not interested in. </p>
  
  <p>So, what's the preferred method to make an object invisible in blender 2.59?</p>
  
  <p>Additional information (not relevant for the answer I'm expecting, IMO):</p>
  
  <ul>
  <li>I'm using blender to make models for Unity. </li>
  <li>I'm using 2.59 because that's the one that works with the unity version that I have. </li>
  </ul>