anti build-in barrels

[swamp-cecil]

what is the shader that makes it so you you cant build stuff inside barrels (ot tube shaped objects)?
i mean that it shows the preview on it, but then it falls right through. if it insnt a shader that does it, what does and anyways thenks for the help

[condor]

(in Radiant or whatever) common trem ->  nobuild

[swamp-cecil]

but lets say that i want it to be able to built ON, but not IN like in arachnid2

EDIT: how do i also make glass textures see through-able like in nieveus

[condor]

so just nobuild certain faces of the object
and for glass
textures/foldering/name of texture
{
   qer_editorimage textures/folder/name of texture
   qer_trans .4
   surfaceparm nomarks
   surfaceparm trans
   {   map $tech_map
      blendfunc add
      rgb const ( 0 0 0)
   }
}
      

[UniqPhoeniX]

Didn't I already answer this? Make a brush covered with common/nodraw (or maybe caulk) inside it if your buildings are/seem to be falling through patches...