Think you are good? Challenge yourself!
If you would like to join me in my quest:
Console (~)
type: "DebugSystemUI" and press enter
the debug menu should appear.
go through the tabs at the top and in one of them should be: "Mat_Fullbright 0" or something close to that.
Change "Mat_Fullbright" to "Mat_fullbright 2.00"
this changes the textures so it is harder to tell which surfaces can be portalized.
some options in the debug menu to avoid:
Software Lighting
World
VGUI
anyone else have any console commands or something to challenge yourself more? 
Turn the monitor upside down?

that gave it away?
Anyway it was only because I don't know any console commands. It's a good idea.
You can't see through Portals and then you can't read signs either.
Good luck.
thecake wrote:
love the avatar raceriot
It kinda freaks me out 
DiddyKong42 wrote:
It kinda freaks me out
I think it looks like my uncle.... 
raceriot wrote:
cl_portalgun_beam_size 100
Good luck.
what exactly does this do? I played with the value a bit (0,10,10000) and i didn't notice any difference


Edit: I know the pics are huge, but I get some lulz out of the thought that people with eency weensy 1024/768 monitors have to scroll for ten minutes just to get to the other side of the page.
Have fun playing portal with no entities!
appunxintator wrote:
in debugsystemui, the second tab, check the 'entities' box.
Have fun playing portal with no entities!
lol @ that. i'm gunna tray that one 
Disable portal funnel
Make your mouse sensitivity suck, no matter how.