This datapack is a small library that helps you with your custom blocks.
When putting item displays inside of blocks, they get an ugly shadow (because the inside of a full block has a light level of 0). If you then run the provided public function as and at the display entity, it looks for a block that touches the custom block and lets light pass through. If it finds one, it gets the light level from that block and applies it to the display's brightness. If it doesn't find one, that means it is buried and sets the brightness to 0.
the function to run: brightness_adjuster:public/set_brightness.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20.3, 1.20.4
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
- Downloads as brightness_adjuster.zip
- Download size: 253 KB
- Download link checked 20 Aug 2026 — working
These come from our own check of the pack file, not from the source page.