Boosted Brightness

This resourcepack uses the new lightmap shader introduced in 1.21.2 snapshots to increase the brightness without any mods. You can control the brightness with your in game brightness slider!

This works in Vanilla minecraft and with Sodium. No mods required.

You may run into issues when using shaders

Brightness 10 (This is the vanilla max without this resourcepack):

Brightness 50:

Brightness 100: