How to recolor (CO-OP) portals in Portal 2
THIS IS ONLY FOR CO-OP PORTALS. For this tutorial all you're going to need is Notepad ++ (or similar text editor. I do not recommend using notepad).
First open pak01_dir.vpk file located in C:\Program Files\Steam\steamapps\common\portal 2\portal2 with Notepad ++.
Then search (Ctrl+F) for lines:
$PortalCoopColorPlayerOnePortalOne "[0.125 0.500 0.824]" $PortalCoopColorPlayerOnePortalTwo "[0.075 0.000 0.824]" $PortalCoopColorPlayerTwoPortalOne "[1.000 0.705 0.125]" $PortalCoopColorPlayerTwoPortalTwo "[0.225 0.010 0.010]"

(PlayerOne is Atlas, PlayerTwo is P-Body)
And change the values as you like, but remember - they are floating point numbers so you have to divide the channel (E.G. red) with 255. So if you want color (E.G. 255, 100, 0) the values should be [1.000 0.392 0.000]
(255 / 255 = 1) (100 / 255 =0.392) (0 / 255 = 0)
After you changed the values save file and launch Portal 2 and it should work :).
Note: This also modifies the crosshair and lights in the portal gun so you don't need to change anything else.







