Seems like you haven´t read my post clearly :

"I used the ennvmap together with this script (I also recalced and relighted and the envmap also touches the glass)"

So there is an envmap-entity and I also "recalced" and "relighted", as I already mentioned.
The only thing I could try is your scaling tip, which could make it kind of better.

.....awkward......

Is the env-map entity just touching, or is the surface actually surrounded by the envmap-entity?

Maybe you should have provided some better screenshot, as you actually can't see any entity at all right now.

A good alternative to check out if you're knowing how an envmap-entity works is by replacing the glass-texture for glass-material.
If it still doesn't work, then get on IRC...

It's just the default texture inside the argh folder, which is included in the official release of Sauerbraten. At least it seems so...

Ah, no problem there then.
Perhaps try playing with the shaderparam

**Example**

setshader bumpenvworld
setshaderparam "envscale" 0.15 0.15 0.15
texture 0 "texture.png"
texture n "normal.png"


The envmap entity is basically just a specific viewcell (like PVS culling, except the viewcell ins't limited to the octree system, so can be moved anywhere). Everything from that certain position will be rendered (as long as it's static; else it will be made static, like animated mapmodels). So if you want to have glass which reflects it's environment, place the entity in or very near the glas