Hey I've been wondering about this for many years now. This time I truly require it.. Is there some special texture similar to the translucent texture which however is invisible yet allows npcs and everything else but the player through it?
The issue is that there's a train line below me and a train also actually passes by with the G-Man in it unfortunately you can jump into the tunnel below where the G-man drives by.
Naturally I could simply create a func_wall_toggle or clip brush on top where the player walks however I wanna try to have as little invisible walls as possible in order not to hinder the players in their freedom or to make it to linear.
Is there anything I could do?