I ran into a problem in my level: under certain circumstances a person could get stuck in my level.
So I wondered if and how it would be possible to use a relay to remove a portal from a surface.

My eternal gratitude

and I would like to delete only one of the two portals
I could place a trigger_portal_cleanser over the portal-able surface though?

msleeper wrote:
It's a brush entity. And it only affects portals within it's volume, you can't select specific portals to cleanse.

actually you can, if you use it with conjunction with a portal detector.

OnStartTouchBluePortal -> cleanser_1 -> Enable
OnEndTouchBluePortal -> cleanser_1 -> Disable

lpfreaky90 wrote:
Ok, I must be stupid but I still can't find func_portal_cleanser.
I tried making a func_brush and changing it to func_portal_cleanser can someone tell me how to create a func_portal_cleanser

It's actually trigger_portal_cleanser. I'm sure that's what Msleeper meant.

lpfreaky90 wrote:
Ok, I must be stupid but I still can't find func_portal_cleanser.
I tried making a func_brush and changing it to func_portal_cleanser can someone tell me how to create a func_portal_cleanser

I usually make the brush whatever size I want the cleanser to be and make it a trigger texture. Hit Ctrl+T to tie it and a properties window should come up. At that point change it to a func_portal_cleanser. Set your settings, make sure you've set it to visible and then change the texture of the tigger to any of the "fizzler" textures.

Create a super-thin (at least 2 units thick) func_brush that has the no-draw texture, and lay it over the wall in question. Set 'Start Enabled' to 'No', and then just use your trigger to enable/disable it. Portals cannot exist on faces that are flush with other faces, so the portal, if it is there, will be removed when the func_brush is enabled, and the other portal will be unharmed.

Groxkiller585 wrote:
It's actually trigger_portal_cleanser. I'm sure that's what Msleeper meant.

Yeah sorry, it's trigger_portal_cleanser.

You know that the entity name browser searches right? You can start typing "clean" and it will autosearch for entities that contain the phrase "clean", such as "trigger_portal_cleanser".

Thanks