Would it just be

players[0] trigger disable_trigger();

or would I have to do something else?

This would be the way of only making the trigger visible to a player:

trigger setvisibletoplayer( players[0] );

I would assume that you could loop it to do it for three players and that would work?

A follow up question: do I have to make the trigger "invisible" or disable it before making it visible to everyone else?

Well, it kind of depends on what exactly you want to achieve in the end.
There's also

trigger SetInvisibleToPlayer(player, true);

which might be what you are looking for. As I said, it depends.

- Phil.

Well, it kind of depends on what exactly you want to achieve in the end.
There's also

trigger SetInvisibleToPlayer(player, true);

which might be what you are looking for. As I said, it depends.

- Phil.

do setinvisibletoplayer is just for triggers or it can make models, fx invisible to other players too? o.O

do setinvisibletoplayer is just for triggers or it can make models, fx invisible to other players too? o.O

I know it works for models and brushmodels, not sure about FX but probably not.

I know it works for models and brushmodels, not sure about FX but probably not.

well thanks ill habe to try it out

Please tell me this is not for another Spiderbite/Thompson troll....