Absolute HD 2023 is a mod for Stalker: Shadow of Chernobyl, bought to you by the same people developing Stalker: Singularity (SIN). Absolute HD is designed for the purist who wishes the game were modernised with true remastered HD textures and very few other changes.
I'll get this video quality fixed soon, it's an AMD driver issue. No idea how AMD keep feking breaking their video encoder stuff.