The Powder Toy

_-_David_-_

This is a wall that will only let particles though the way it has been dragged (such as the effect of Fan Wall). This could be useful for separating particles, ect.
Thanks,
David

vagineer

That may be useful so +1.
But we already have pipe for separating.

dnerd

i like the idea, but this is easily acheivable in other ways.

_-_David_-_

@dnerd
How? This info would be useful to me :D

Racer-Delux

Use pipe to create one way walls. It is about the same thickness, if not smaller.

dnerd

@_-_David_-_
or if youre creation dosent use Portal in or Portal out, use them.

JoJoBond

See https://powdertoy.co.uk/Wiki.html?id=using_pipe_element the last two pictures.

_-_David_-_

@JoJoBond
Thanks very much :D

'Pass Through' Wall