non-emancipation grill
I'm working on a map that involves an emancipation grill that allows cubes to go through it. The problem is that people say they get too confused thinking the grill will destroy the cubes. Does anyone know how I could tell the player you can bring the cubes through?
Not in wrath
The REAPER came today
An angle visited this grey path
And took the cube away
You could use ATT text to speech to do a voice saying you can, or just use game_text.
game_text is annoying as shit, please don't use it.
Think of some other method to allow the player to bring a cube through. Maybe a small side slot that they can slide the cube through next to the fizzler, and they pick it up on the other side?
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so its a fizzler that only removes portals? texture it as invisable. they will never know! 
PortalStories.com
"Oh, in case you got covered in that repulsion gel, here's some advice the lab boys gave me: DO NOT get covered in the repulsion gel."
What they said. In Portal Prelude they changed the colour of the grid from blue to green, with a voice over from some 'employees' that it won't destroy the cube.
Woot! Go Portal Prelude.
Or just add a very small rooom at the start of the map, with nothing else in it than a cube, a button and a fizzler in the middle. This will also have the effect that all ignorant dumbasses will quit immediately. 
A map pack coming soon. - click for more information
Yeah, that's what I was thinking. Maybe a bright green color or something. I just hope the creator of Portal Prelude doesn't hunt me down :
Not in wrath
The REAPER came today
An angle visited this grey path
And took the cube away