I've been using Hammer World editor for a some time. Suddenly this has occured in the 3D view:
The polygons making up the terrorist model and the door are noticebly skewed and no longer aligned with one another. The same thing occurs with virtually all other elements in the 3D view. Brush faces are rendered in the wrong location, and even the parts of the translucent red mask placed over selected objects are rendered out of place.
So far I've searched for driver updates, with no new ones found. I've also deleted the Source SDK after making a backup. The redownloaded files from steam gave the same results in Hammer's 3D view. My video card (Radeon X600) is overclocked, however setting the original clock doesn't help either.
So, any ideas or suggestions regarding how to fix this issue?
EDIT: I found the reason while browsing some slightly related topics. The issue lies with the latest version of Direct X. My video card doesn't seem to fully support the latest version. A rollback to dx8 (-dxlevel 80)while using Hammer fixes the problem. Interestingly however I haven't had any issues like this ingame.