The goo, though, is relatively easy to do in other engines, unless you mean the flow-map features. I'm pretty sure those are a custom shader valve wrote for portal 2, so again, no porting possible.

p0rtalplayer wrote:
...unless you mean the flow-map features. I'm pretty sure those are a custom shader valve wrote for portal 2, so again, no porting possible.

I think they might be in L4D2 as well. Not sure.

elt wrote:
I have an additional question along these lines. If it's not possible to bring Portal into Half-Life, what about the other way around? Could you have a gun in a portal game? human enemies? Is that even slightly possible?

No, and honestly it's a good thing because when Portal 1 had weapons and enemies people just created useless maps where you shot at them and didn't do anything even slightly portal-related.

Omnicoder wrote:
No, and honestly it's a good thing because when Portal 1 had weapons and enemies people just created useless maps where you shot at them and didn't do anything even slightly portal-related.

Fair enough. Thanks for the reply. I was more interested in the player getting shot AT than doing the shooting. "Crap! A dozen Combine just came around that corner! I have no ammo! Oh, wait... I have a PORTAL gun and they're standing on a white floor. HMMMM."

elt wrote:
Omnicoder wrote:

No, and honestly it's a good thing because when Portal 1 had weapons and enemies people just created useless maps where you shot at them and didn't do anything even slightly portal-related.

Fair enough. Thanks for the reply. I was more interested in the player getting shot AT than doing the shooting. "Crap! A dozen Combine just came around that corner! I have no ammo! Oh, wait... I have a PORTAL gun and they're standing on a white floor. HMMMM."

In theory it would be cool, but when you actually try to make it you realise that the NPCs don't react to portals, they can't see or shoot through them, and they are rarely able to fall into them.

I made a map where you could drop bombs onto a strider, which was fun for a short while, but on the whole the NPC and portal thing was just too limited to be useable.

NocturnalGhost wrote:
In theory it would be cool, but when you actually try to make it you realise that the NPCs don't react to portals, they can't see or shoot through them, and they are rarely able to fall into them.

Noted. I'm tossing vague story ideas around in my head, so I'll just scratch that subsection off the list.

gallardo wrote:
So we cannot mod for Portal2? No new npcs or weapons?

Nope.