This is Bobby ported to 1.12.2.
Bobby works by caching loaded chunks in a folder called /minecraft/.bobby. Real chunks sorround the player and cached chunks beyond the simulation distance are not tickable. This mod can be used on client and server.
Requirements: MixinBooter or Cleanroom Relauncher
Incompatibilities: Nothirium, Particle Culling, Entity Culling, REID, Entity Distance and Dynamic View are not compatible. This mod does some of what these mods do already. Any mods which involves culling should be disabled.
If you have Universal Tweaks disable this line:
B:"Frustum Culling"=false
How to Set Up:
Render Distance
. This is how far you can see chunks
Simulation Distance
. These are the real chunks around the player which tick
Demonstration:
