(Hammer) Boxes around models after I move away

[DF1229]

So while following UEAKCrash's mapping tutorial, I noticed that when I moved away from the train it got a yellow box around it.
Almost as if I were in the flat textures camera mode, but I'm not...
Anyone know what could be causing it or what I could do to fix it?

Without box:

http://imgur.com/YcQ6Xap

With box:

http://imgur.com/6bBZpn2

 

[killohurtz]

That's simply the render distance of models kicking in; it's just in the editor, and won't affect your finished map. If you navigate to Tools > Options > 3D Views, you can move the "Model render distance" slider up.

 

[Vel0city]

It's just in Hammer. It's a feature to lighten up the load on your computer by simplifying models to a simple yellow box instead of the complex geometry of models. If you go to Tools > Options > 3D Views, you can move the "Model render distance" slider to the right to increase the distance Hammer will render the full model for you. This will make it heavier for your computer though, so don't go overboard.