Retina
Minecraft raycasting library that can detect precisely what block a player is looking at, including special block shapes like slabs & stairs.
⬇ Download on ModrinthRetina is a raycasting library data pack for Minecraft: Java Edition 1.20+, using voxel traversal.
Unlike other similar packs, it supports (almost) all of the different hitboxes, including both blocks & entities. It also doesn't rely on entity teleportation, meaning it runs slightly faster on average too.
Additionally, Retina supports a lot of customizable input parameters and gives detailed output information, making it a very useful resource for custom maps and datapacks, with applications ranging from magic wands to guns to custom block placing to laser beams.
For more specific information, check out the GitHub repository.
Credit for the logo: Vector image by VectorStock / vectorstock
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.5
- 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 Retina-v2.4.1.zip
- Download size: 380 KB
- Download link checked 29 Aug 2026 — working
These come from our own check of the pack file, not from the source page.