P1 Buttons and Door Model Textures
For example, the door needs the file "door_01.VMT"... there's the "door_01.VTF" though, but the game also needs the .VMT.
Same for the "button_base_referenece.MDL" and "button_top_referenece.MDL", they miss the files:
- button.VMT
- button_exponent.VTF
- button_lightwarp.VTF
- button_normal.VTF
I'm attaching all of them, grabbed from Portal. Place them all into your folder materials/models/props/... and remember that if you use them, you'll need to pack them since no one will have them by default 
Oh, and one thing: for both, the P1 button and door, VALVe did include the file "button.VTF" and "door_01.VTF", but they are bloody odd >.<, so I suggest you to hex the models and make them use the old ones (also attached) by placing them in different folders. If this is too complex for you, just send me a pm and I'll make them and send 
but that's the easiest part, believe me, pakrat will do automatically... Just need to pack manually their textures
yishbarr wrote:
The models still look strange.
Strange? if you mean that you don't like the textures but now they aren't purple checkerboard, well, I told you
VALVe included SO ugly VTF textures for those models, that's why I suggest you to hex them... to make them load different VTF textures 
reepblue wrote:
You could just make the vmt load a different vtf.
Oh man, how could I not think in the simplest solution? >.< We are adding the .VMT, we can change the path in it.