1.21.9 changed the lightmap shader, and now block light is strangely warm/orange. this fixes that. Lightmap Fixer is a vanilla like pack from owenxm. It targets medium-tier hardware and up and loads as a regular resource pack on Minecraft 1.21.9 – 1.21.11. Licensed MIT, so the download is mirrored right here on MineSpecs — no ads, no redirects.

How to install Lightmap Fixer

1. 1No shader loader needed — Lightmap Fixer uses Minecraft’s own core shaders, so it installs like a resource pack on Minecraft 1.21.9 – 26.2.
2. 2Download the Lightmap Fixer .zip from the button above — keep it zipped. It is mirrored on MineSpecs, so there is no ad-gate or redirect.
3. 3Drop the .zip into your .minecraft/resourcepacks folder (%appdata%\.minecraft\resourcepacks on Windows, ~/Library/Application Support/minecraft/resourcepacks on macOS).
4. 4Launch the game, open Options → Resource Packs, move Lightmap Fixer to the right-hand column and click Done.

First time? How to install Minecraft resource packs

Performance & what to expect

Lightmap Fixer is rated medium performance impact. It wants a mid-range dedicated GPU. Drop render distance a few chunks if you fall below 60 FPS. The look is vanilla like.

More vanilla like shaders

Dithered ShaderPotato impact · by BouncingElf10DuskMedium impact · by AbstractBetter End Portal ShaderPotato impact · by MrBroseSimple Shader OnePotato impact · by nerconeWisp ShadersMedium impact · by n643064Complementary Shaders — ReimaginedMedium impact · by EminGT

Lightmap Fixer is created by owenxm and mirrored here under its MIT licence. MineSpecs is an unofficial fan project and is not affiliated with owenxm, Mojang Studios or Microsoft.