Recently, modder "Junior_Djjr - MixMods" released an update for the graphical modification "[SA]Proper Shaders" for Grand Theft Auto: San Andreas. His mod makes the visuals in the Rockstar Games title more realistic.
He implemented deferred rendering with per-pixel lighting into the game and uses NVIDIA PCSS to improve the image quality, which enhances shadow quality. There is support for SSAO and HBAO (for ambient occlusion).
The modder emphasizes that "[SA]Proper Shaders" is designed for gameplay, not just for taking beautiful screenshots:
This graphics mod, which is created with an emphasis on stability, compatibility, and optimization, is truly playable — it's designed for gameplay, not just for creating screenshots. It's well-integrated into the game (for example, there are separate settings for day and night), unobtrusive, and easily customizable [...]
An example of driving through the world of GTA: San Andreas with improved graphics can be viewed at the following link.
Earlier in April, a demo version of the story modification GTA: Carcer City was released for Grand Theft Auto: San Andreas, which moves the action to another city and includes several missions.