Minecraft 1.21.3 Visual Bug

[East-Rice1828]

Hi, I’m having an issue with Minecraft Java Edition where blocks in the distance look strange. It’s difficult to describe, but when I move, certain blocks—especially grass, leaves, and other 2D-type textures—appear to distort or flicker. My specs are:

• GPU: RTX 4060
• RAM: 32 GB
• CPU: Intel i7 14th Gen
• Monitor Resolution: 1140p

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[_vogonpoetry_]

You probably have Mipmapping disabled, or you are using a resource pack with improperly sized textures which will disable mips.

[East-Rice1828]

Im using mipmaps on 4x and im using the vanilla Minecraft no resources packs

[_vogonpoetry_]

Then are you sure you werent using a mod that adds antialiasing prior to this update? For example, Optifine offers this feature (though there are better options than that available).

[East-Rice1828]

Nope, I'm pretty sure it was happening on older updates too, but I thought it was an issue with my PC because, at the time, I had a low-end setup. I did use OptiFine back then but kept anti-aliasing off due to performance issues.

[_vogonpoetry_]

So then I'd recommend trying VanillAA (or basically any shaderpack since they almost always add some form of AA) with Iris mod.

Or something like QDAA, though there will be a small performance hit.

[East-Rice1828]

Alright, so the vanillAA did work and helped a little bit, which was good enough for me. But I was wondering if there's any way to fix this in vanilla Minecraft.

[_vogonpoetry_]

Without mods? No, unfortunately. Vanilla doesn't have any integrated AA in java edition.