Creating An Auto Portal

← Portal Level Creation

This guide will show you how to create an auto portal, this is a very simple process and should be done in no time.

Auto Portal on the wall to walk through

The Frame

Make a prop_static entity and change it's world model to "models/props/autoportal_frame/autoportal_frame.mdl"

What the auto Portal Frame should look like.

The Portal

Make a prop_portal entity and name it "portal". Set the Property "Start Activated" to Inactive. Set the "Portal Number" property to which portal you are using.

Note:Portal 1 is the Blue Portal and Portal 2 is the Orange/Red Portal.

Position the prop_portal 2 units above the bottom of the portal frame (prop_static entity). Now center it based off the "bars" of the portal frame using the "top (x/y) view".

Warning:If placed improperly, the portal will be inside the wall making the portal useless although the edges of the effects show.

What the positioning of the portal should look like

Portal Spawn Sound

Make an ambient_generic entity and name it to sound_portal_spawn. Set the "Sound Name" value depending on what type of portal you have. Portal.open_blue is the Blue Portal and Portal.open_red is the Orange Portal. Set "Max Audible Distance" to "333". Set "Source Entity Name" to "portal".

Go to flags have only "Is NOT Looped" checked

Portal Spawn Shake

Make an env_shake entity and name it to "shake_portal_spawn". Put this entity fairly close to where the player triggers it if the player is near by the portal.

Optional (Recommended)

If you want to make this a prefab, I suggest following these steps to make things easier...

Make a logic_relay and name it to relay_portal_spawn

Add the outputs:

	My Output	Target Entity	Target Input	Parameter	Delay	Only Once
	OnTrigger	portal	SetActivatedState	1	0.00	No
	OnTrigger	shake_portal_spawn	StartShake		0.00	No
	OnTrigger	sound_portal_spawn	PlaySound		0.00	No

Auto Portal for ceilings, floors, or Flinging

I highly suggest you read "Auto Portal on the wall to walk through" before you enter this part.

Aligning the portal

Do your best to perfectly center the portal with the auto-portal frame.

Warning:If placed improperly, the portal will be inside the floor making the portal useless although the edges of the effects show.

What the the portal should look like when centered

Rotating

Simply rotate the entire portal and make further corrections afterwards.

Note: Rotating the prop_portal will make the portal look like it is in the same position in the hammer editor, you will have to rely on which direction the origin (yellow line in 2d view) is facing

An unrotated prop_portal

A rotated prop_portal (would be on the ceiling)

Implementation

Make the Portal spawn

Make some entity trigger the relay_portal_spawn logic_relay

For example with trigger_once:

	My Output	Target Entity	Target Input	Parameter	Delay	Only Once
	OnTrigger	relay_portal_spawn	Trigger		0.00	No

Make the Portal close

To make the portal close, you set the active state to 0,

here's in example with trigger_once:

	My Output	Target Entity	Target Input	Parameter	Delay	Only Once
	OnTrigger	portal	SetActivatedState	0	0.00	No

See Also

Creating a rotating portalgun