You know, a real life Portal Gun wouldn't be as useable as it is in most videos

[Cross]

In order to place a portal on a surface, it must be flat, white, not be moving (except from side to side, apparently) and be at least 1 metre wide and 2 metres. You also can't just get rid of the portals either (unless you have an emancipation grill with you)
I dunno about you but I don't ever really see all that many places that fit those criteria

[Vex Hilarius]

thats why its a game :D

[RealOfficialTurf]

The Earth is spinning, and we're there. Should be impossible.

[J-M]

Truuuue

[Cakeeater]

not white but moon stone you can`t walk around with a can of white paint and portal around

[Cross]

Originally posted by AUS Cakeeater34:

not white but moon stone you can`t walk around with a can of white paint and portal around

when in ruined Aperture in the offices, you can place portals on several surafces - you can also place several portals on various surfaces when trying to escape in Portal 1. Also every test in old Aperture BEFORE they start using Conversion Gel

[Cakeeater]

what are the surfaces. I`m pretty sure it was stated that only moon stone worked. I think

[Cross]

Originally posted by AUS Cakeeater34:

what are the surfaces. I`m pretty sure it was stated that only moon stone worked. I think

I only recall it being stated that moon rock is simply a great surface for portals - that it's a good 'conductor' - not that it was the only valid surface

[Cakeeater]

oh ok thanks