Quote from spongylover123 on September 29, 2011, 5:38 pm

Check here:http://developer.valvesoftware.com/wiki/Tool_textures
Try the ones that cut visleafs

Quote from Vordwann on September 29, 2011, 5:43 pm

Try the portal bumper. Also, why are you putting a clip brush inside a glass model? Just make it use it's bounding box for physics collisions.

Quote from gompasta on September 29, 2011, 5:48 pm

Vordwann wrote:

Try the portal bumper. Also, why are you putting a clip brush inside a glass model? Just make it use it's bounding box for physics collisions.

Annoyingly, the prop vanishes when it has physics enabled, and it is in a certain shape that needs a brush.

EDIT: Physics? I mean colissions.

Quote from Vordwann on September 29, 2011, 5:59 pm

That's what I meant. Sorry.

Honestly,

Quote from Random on September 29, 2011, 6:09 pm

The "invisible" texture has always worked for me before, not sure what the problem is. But I would think nodraw would be fine as long as it just goes over the prop and doesn't overlap with any textures.
If all else fails, maybe an invisible portal cleanser (if the player can't reach it)? I'm not completely sure what you're going for.

Quote from gompasta on September 29, 2011, 6:22 pm

http://screenshooter.net/4612066/ricsatb
Here is a picture of what i am doing. Simply placing the nodraw texture in front of it gives this stupid green effect. Possibly due to it trying to reflect/refract a nodraw texture?

EDIT: I am not sure if this is related, but i am also getting weird black portals. http://screenshooter.net/4612066/tfrckrp
I have never encountered this before, but i am sure there is a simple fix that i cannot recall.