Open the .vmt and put in a line
- Code: Select all
$cubemaptimnt "[.5 .5 .5]"
You can raise or lower it to increase/decrease the reflectiveness.
As to the exact problem you're having, it looks like you have different cubemaps affecting different faces. Select your cubemap entity and use the 'select faces' bit or w/e to mark all those faces. That way only one cubemap entity will affect those faces and you won't have those massive seams.
Or maybe it's a missing cubemap, since it's such a square pattern. Open your map in VIDE or PakRat, delete all the cubemaps and re-build them.
There are a lot of issues with cubemaps but once you get past the main ones it's not too bad.