Lightning Vector & Bounding Box Visualizations

Minecraft Debug Mod that adds commands to render boxes and vectors.

by
1.1K Downloads
fabricgame-mechanicsoptimizationutility
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Screenshots

Lightning Vector & Bounding Box Visualizations Screenshot 1
Lightning Vector & Bounding Box Visualizations Screenshot 2

About this Mod

Minecraft Debug Mod that adds commands to render boxes and vectors.

Commands

/renderbox <string> - Renders a box with the parameters parsed from a string in the format of examples below
/rendervector <string> - Renders a vector with the parameters parsed from a string in the format of examples below
/listboxes - Lists all boxes and their indexes
/listvectors - Lists all vectors and their indexes
/removebox <index> - Removes box at index
/removevector <index> - Removes vector at index
/clearboxes - Removes all boxes
/clearvectors - Clears all vectors

Examples

Rendering a box

/renderbox "SimpleCollisionBox{minX=0.0, minY=5.0, minZ=0.0, maxX=16, maxY=21, maxZ=16, isFullBlock=false}"

large bounding box example

Rendering a vector and a box

/renderbox SimpleCollisionBox{minX=-229.75, minY=6.0, minZ=-127.6875, maxX=-229.25, maxY=6.375, maxZ=-127.3125, isFullBlock=false}
/rendervector origin: -229.71166162514788,6.4,-125.36631179014836 direction: 0.0980876340918071,-0.5511781573295593,-0.8286021167303872

vector crossing through sandstone under lever emerging in air gap

Generating Render Strings

The odd input format is because this mod is currently built for a very specific purpose. To quickly render hitboxes and vectors for GrimAC from values copied through the Intellij debugger, as shown below.
showing copying vector debug text from trace variable in debugger
showing copying bounding box debug text from box variable in debugger
More Debug features coming soon!

Available Versions

Lightning Vector & Bounding Box Visualizations 1.1.0release
MC 1.21.8fabric
July 25, 2025
Lightning Vector & Bounding Box Visualizations 1.1.0release
MC 1.21.5fabric
July 25, 2025
Lightning Vector & Bounding Box Visualizations 1.1.0release
MC 1.21.3, 1.21.4fabric
January 30, 2025
Lightning Vector & Bounding Box Visualizations 1.0.1release
MC 1.21, 1.21.1fabric
October 3, 2024
Lightning Vector & Bounding Box Visualizations 1.0release
MC 1.18, 1.18.1, 1.18.2fabric
September 14, 2024

How to Install Lightning Vector & Bounding Box Visualizations on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.21.8).

3

Install Mod

Open the mod browser in the dashboard and search for "Lightning Vector & Bounding Box Visualizations". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.8, 1.21.5, 1.21.4 (+6 more)

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Lightning Vector & Bounding Box Visualizations server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.8). You can switch loaders with one click in the panel.

Is Lightning Vector & Bounding Box Visualizations compatible with fabric?

Lightning Vector & Bounding Box Visualizations officially supports fabric for Minecraft 1.21.8, 1.21.5, 1.21.4. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Lightning Vector & Bounding Box Visualizations – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Lightning Vector & Bounding Box Visualizations consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Lightning Vector & Bounding Box Visualizations with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
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1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Required

Supported Versions

1.21.81.21.51.21.41.21.31.21.11.211.18.21.18.11.18