When I update my Render Distance to 18 chunks or more, I get "disco-rendered" chunks. I can't really explain what happens but here is a gif to show you what happens:
[media]I get this problem both on single player and multiplayer minecraft.
MC-71162
1.8 chunks problem (disco chunks)
Resolved
Duplicate
0
Bryan Perroud
(Unassigned)
Unconfirmed
Minecraft 1.8
Retrieved
This issue is a duplicate of MC-62958. It has been linked to the original bugreport.
Please search before reporting any bugs, as it's likely that one exists already.