In HL2, if you make a map and make npcs, and tell them to travel through a brush that uses that material, they can’t do it! If you make a map with tools/toolsplayerclip.vmt and try to travel through the location of that brush, you can’t without noclip. tools/toolsnpcclip.vmt is a tool texture. It isn’t an entity, jeez… but it’s used to block collision for specific characters. I don’t think it works on physics objects. It is similar to tools/toolsblock_los.vmt which keeps an NPC from seeing through an area, tools/toolsblocklight.vmt which keeps light away from lightmaps, making ghostly shadows, or tools/toolsareaportal.vmt which I’m hoping doesn’t need an explanation from me.
[editline]10th February 2013[/editline]
I figure what the game does is this: NPCs treat tools/toolsnpcclip.vmt as a regular brush, believing there is something physically there. Player movement treats player clip as a real brush. NPCs and Players treat the regular clip brush as a regular brush.
I believe without using func_brush, or displacements, there is no way to make a brush that has no collision.
I’m just wondering if that’s the case with SENT NPC’s, where any other sent can just fly through all of the tool textures (or am I wrong?)
I think I should’ve posted this under mapping. I also think LUA NPC’s are treated exactly like … the doll model, or the bouncy ball, seeing as both the bouncy ball and an NPC are made in the exact same area, Lua/entities.