Bug Description

i can't add my fullbright ub resourcepack

Reproduction Steps

Log File

Fullbright-UB-1.21-Beta.2.zip

Crash Report

boot_11_08_2023_20_05_21.log

Core shaders are not supported by Sodium.
https://github.com/CaffeineMC/sodium-fabric/wiki/Resource-Packs

There's alternative means of getting a fullbright effect. You can find various mods that do this on modrinth.