I am assuming you mean similar to those on Asgard. To make them transparent use the Alpha material, and to walk through them use the Noclip material. The moving texture if you want to use one is done by selecting the texture and using /vscroll 0 0 with the 0s replaced with values for the horizontal and vertical directions.

Unless you want completely invisible forcefields, make geometry textured with the skytexture, then use command /skytexture 0 and noclip the desired geometry. This makes all gometry faces textured with the skytexture completely transparent. This does, however, still cast shadows.
Check these out before you go any further. Might save you a lot of headaches, as it did me when I started out.
Cube 2 Editing Reference
До свидания и Спасибо
-P

Thanks for the help guys. and one other thing, can I texture clip material?

One way cubes sounds like a better options then theses ;p you can do so much more with it.

also all these methods fail to stop grenades from going through (or the spiders weapon - or gibs or debris; which may make this look a lil weird.)

(Basically for all the coders out there anything identified as a bouncer and uses physics not just point detection, It would be nice to have a game-Noclip that didnt allow people but bullets, and a player-noclip that allowed players but not bullets, but for now we have to hack it).

The correct way is an odd shaped cube (called a one-way cube). There are many versions; the one you need is on the map europium. (Its easier then trying to explain how to make it). It is located inside the base doors (brown wood) (its a cube of the smallest grid size textured skytexture just copy that one and paste it into your map, You will need to lay a grid of those across the space you want to be "force field" then you can apply any alpha or what ever, just make sure you set skytexture 0 so you dont see the one-way cube.

chasester

PS: These cubes can be a lil buggy sometimes so be careful how you use them! Make sure you do plenty of testing.
PSS: You can not jump while inside these cubes so making them more than 1 deep may cause a problem (so x by y by 1)
PSSS: Using the smallest size grid is ideal you can use larger ones, these faces can be pushed to be even smaller (if wanted) (uses f+scroll - q+scroll may lead to problems)
PSSSS: Alpha is better than glass in my opinion, more options, and the ability to overlay, crack the glass etc.
PSSSSS: Idk what P.S. etiquette is so dont kill me for all the "S"es :)

youre right i thought that grenades were stopped by clip, my bad.

but the opposite would be nice,

also side question what is game clip- did that just replace aiclip ?

chasester