Shoot throughable wall question

[Dai Tou Zai]

Okay so i was wondering if its possible to make it so that you can shoot through a wall but only on 1 side

Example

Imagine a cliff, you can shoot through it if you're above the cliff but you cant shoot through it if you're below the cliff

[Kashlavor]

Don't know of any way, thought about that but doesn't seem possible, maybe someone else has a better answer.

Best you could do would be to make it so that theres an areatrigger on the top of the cliff which makes it temporarily passable for shooting down, then turns that back off once you leave.

[Hipshot]

You can't. Not in a "good" way, you need to remove the collision temporary for that, like Kashlavor says.

[Dai Tou Zai]

Hmm now i need to decide if they should be shoot throughable or not... also is there anything to fix screen tearing?

Like sometimes when i test it out in some spots the ground gets a black outline for not even a second, maybe the maps too big?