Accelerium

Initial features:

+ Occlusion Culling — entities and block entities hidden behind walls or 

  terrain stop being rendered instantly (async ray tracing)

+ Distance Culling — distant entities fade out and stop being rendered

+ Smart Entity Ticking — distant mobs run their AI less often, reducing 

  lag from big mob farms (works in singleplayer and servers)

+ Full config — every feature can be toggled and tuned individually

Nothing is ever removed from the world — only rendering and AI work 

that cannot be seen is skipped.