[1.12] Visual glitch, shaders off

[Former user]

The shader option in the mod config is off, yet I still get this weird glitch whenever I move my mouse- even a pixel's worth. I have optifine. It occurs with and without symmetry, when I fill blocks, place blocks, etc. This occurs in both creative and survival.

[Fureversalty]

I thought i was logged in, woops. This is my post

[Taiiwo Llort]

I also get this issue with no other mods installed. It exclusively happens at high coods values, and gets worse the higher you go.

[Sebastian Vaughan]

This is a floating point precision bug as far as I’m aware, the hitboxes will get twice as distorted at every power of 2 blocks from the center of the world. Elements in vanilla Minecraft like redstone textures and falling gravel/sand entities also experience distortion due to floating point precision issues.

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[Requios]

There is not much I can do about that (at least not without a ton of effort, and even then its questionable). Even vanilla minecraft cannot fully fix this (see here).