New types of fizzlers : doable?
If someone ever played the Flash version of Portal, you have in there two force fields that have no equivalent in Portal but sure could be fun :
- The red force field : portals can be shot through it, inanimate objects go throught, but living beings (aka the player) are killed on touch.
- The blue force field : portal goes through, but it acts as a wall for all other entities, including the player.
I'm sure the first one is doable quite easily with a trigger, but I don't know for the second one.
I was also wondering which visual effects we could use to render those fields. I was thinking about the combine inhibitor fields from HL2 and a recolor of those in red, but how can we make the effect of inhibitor fields in the first place? Would this effect color be changeable?
I wonder if you have any ideas about this, because if we can do those, they sure would allow quite a lot of new puzzles.
NO! THE CAKE! NOOOOOOOO !
Hehe, I invented these two fields, Portal the flash version was made by me and my friend.
We had no idea about the real portal Fizzlers, It could add such a nice puzzles 
.
Anyway about your question, the red walls can be done easily with a trigger_hurt and for the blue one, you should open an HL2 map with these blue Combine gates that the player cannot pass through, we based our blue wall on these combine walls, I think that there is a Combine gate prefab in hammer, try to look into it.
About the look, for the blue wall use the normal combine one, and for the red one, I think you should edit the blue one texture in Photoshop and change it to red.
Good luck 
As for the blue force field, use a brush with the Clip (I think it was) texture. Missiles (as in things fire by guns) goes through, but no other physics objects
The blue combine wall things dont let portals travel through them, i dont think. i'm not sure if you can change it, but i played through hl2 with the portal gun and portals got stuck on the blue forcefields.
In HL2 at some levels you can shoot through them and at some levels you don't, It's probably a flag that you can check.
I'm sure the first one is doable quite easily with a trigger, but I don't know for the second one.
Use a fence.
That's what I did when I needed something like that in my maps.
The colouring, red and blue, made me thing, could you make a fizzler that only let red portals through and one that only let blue portals through?
Don't think so, because the entity deletes both as you walk through and none can go through, I dont think theres any flags that can be set to allow it either.
Check out my Portal 2 map, Entrapment!
http://forums.thinking.withportals.com/community-releases/entrapment-1-1-1-t2323.html
No flag at all. And no filter either.
But I'm still wondering what would be the purpose of blocking blue or red portals only. Aren't this two exactly the same ?
But I'm still wondering what would be the purpose of blocking blue or red portals only. Aren't this two exactly the same ?
I think they mean blue/orange, I.E mouse click left, mouse click right. It would add more to the gameplay in custom maps if these kind of flizzers worked, but then again it would be hard to let them know you are allowed certain types, unless you gave the flizzer model (the one that "holds" the thing) a shade of red or something,
Check out my Portal 2 map, Entrapment!
http://forums.thinking.withportals.com/community-releases/entrapment-1-1-1-t2323.html