i sometimes get this graphic glitch when i load a map, or the render distance is too far, it willlook like the messy screenshots i made and load up,
not happening too much but happens when i load a map after i played an other map before,
usual gameplay i mostly have no problemes, when i use optifine (whatever version) it doesnt happen, but since snapshots it came back for me
Duplicate of MC-62958. Broken/outdated AMD graphics drivers.