Light bridges don't go through glass
Is there any way to change this?
Did you try making the glass non-solid, then put a clip in front of glass? I haven't tried this so I don't know if it works, but I guess it would.
When I do that portals are still allowed through and cubes can go through the glass
To stop the cubes, you can use a func_clip_vphysics. To stop the portal gun, you could try using a block bullets texture. If that doesn't work, maybe a portal cleanser will do.
The block bullets texture doesn't do it, and what do you mean by a portal cleanser? A fizzler? That wouldn't work.
Yes it would, it blocks the portal shots. That combined with clips, and make the brush non-solid, and if you have turrets, add a block bullets texture, it should prevent anything from getting through.
So I tried that, and it doesn't block cubes.
func_clip_vphysics will.
Make sure you are tying the func_clip_vphysics brush to its appropriate entity. Unlike the player clip, it requires more than just the texture to initiate its function.
Light bridges cant go through any solid wall. I would create a func_illusionary and cover the wall with player clip.
EDIT: Even better, make a small hole in the wall so the light bridge can go through and put a non-solid glass texture over it so then it looks like it is going through the glass.