Trigger zone material like Source

[thehankinator]

How can I make a material that is visible in the editor but not when the game is running? For use specifically for invisible triggers. I could change the material via a script but it would be nice if I could create a special material that did all that for me.

 

I'm thinking of something similar to how it looks in Source engine

 

[Rick]

Draw a csg and change it's material to invisible (or I think there is a pink one (search in the Materials folder) that when applied doesn't show up in the game but does in the editor). To get the functionality of a trigger you'll still need to add a script and change the collision to trigger on the csg.

[macklebee]

The inherent caulk material located in the Materials/Developer folder provides this function.

I changed the blend mode of the material to be able to see through it within the Editor.

[reepblue]

I made something a while back, but when you use it with probes, the reflection of the trigger brushes get baked within it's reflection.

 

Josh said (a while back, mind you) he was gonna look into a "show in-game" option in which unlike "Hidden", would only have the entities Draw function skipped.

[Einlander]

Make a material with the 'transparent.shader'

 

Then use this code:

function Script:Start()
 if not DEBUG then
   local material = Material:Create()
   material:SetBlendMode(5)--Blend.Invisible
   self.entity:SetMaterial(material)
   material:Release()
 end
end

 

This will make whatever the object is invisible at runtime (F6), but visible when debugging (f5) or in the editor.

[reepblue]

Yes, but if a trigger brush will get seen by the probe cameras and the reflection will have your trigger brush in the cubemap!

[macklebee]

Yes, but if a trigger brush will get seen by the probe cameras and the reflection will have your trigger brush in the cubemap!

Yes, if you are using probes, you will need to hide the triggers in the editor prior to performing the GI option.

[thehankinator]

I am not using probes so this should work great, thanks guys!

[reepblue]

Yes, if you are using probes, you will need to hide the triggers in the editor prior to performing the GI option.

 

That's how I did it in the Vectronic Demo, it was kind of a pain tho.

[DooMAGE]

Uhh, so it's a good idea hide my invisible triggers before building the GI?

This can cause performance issues later?

[thehankinator]

I think if you are using the vanilla invisible material you should be fine.

[Josh]

There's a new blend mode for this in the material editor.

[reepblue]

Here is a trigger material. Seems the blend mode only works if Z-Sort is on. (Intentional?)

 

Edit: Added transparency!

triggermat2.zip

[thehankinator]

Here is a trigger material. Seems the blend mode only works if Z-Sort is on. (Intentional?)

 

Edit: Added transparency!

This looks and works great! Should be included with LE imo.

[reepblue]

This looks and works great! Should be included with LE imo.

 

Not mine, but in 4.2, there is a default trigger material.