LightBR
by PixelSam123
LightBR is a client-side optimization mod for ice boat racing that limits which chunks are rendered around driving surfaces.
What it does
When a player drives an ice boat on a track, LightBR renders only the chunks near the driving surfaces and blocks tagged for OBU. Chunks farther away, which usually hold background decoration, are hidden, which reduces the work the client spends on rendering. The goal is smoother play on weaker machines and on high refresh rate screens, where the processor time saved can go to frame rate.
The mod runs on the client alone, so players install it and servers do not need it. Fabric API and YetAnotherConfigLib (YACL) are required, and Mod Menu, OpenBoatUtils, Sodium and VulkanMod are optional. Files are published for Fabric and Quilt for 1.21.4 and 1.21.11, and the code is released under the GNU Lesser General Public License v3.0 only, so it is open source. The mod is marked Beta while its server integration is still being finalized, and behavior may change without notice.
Key features
Track-area chunk filtering
Only chunks around driving surfaces and OBU-tagged blocks are rendered, and distant background decoration is hidden.
Settings under Mod Menu
Options can be adjusted in the mod settings reached through Mod Menu, which lets players tune the trade-off between visuals and speed.
Track maker visualization
A demonstration video shows how the Minecraft client renders a track with the mod active, which helps track makers judge their layouts.
Issue reporting
Problems and suggestions can be sent through the public issue tracker, source code, or the listed contact channels.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
Optional 4
Use cases
Ice boat racing servers
Some ice boat racing servers have started integrating the mod, so players on those servers can use it while racing.
Who it’s for: Players who race ice boats on high refresh rate screens or on lower-end hardware, and track makers who want to see how their tracks render.
How it compares
SwitchCamBoat is a Fabric-only, client-side mod for 1.21.4 – 1.21.11 under the MIT License and is not open source. BBBoatHud is also client-side and Fabric-only, covering 1.21.1 – 1.21.11, and is open source under the GNU General Public License v3.0 only. BoatLabs Mod is a Fabric-only client-side mod for 1.21.1 – 1.21.11 with all rights reserved, so its code is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| LightBR | Fabric and Quilt | 1.21.4 – 1.21.11 | Client-side only | 2026-09-22 |
| SwitchCamBoat | Fabric | 1.21.4 – 1.21.11 | Client-side only | 2026-07-06 |
| BBBoatHud | Fabric | 1.21.1 – 1.21.11 | Client-side only | 2026-10-03 |
| BoatLabs Mod | Fabric | 1.21.1 – 1.21.11 | Client-side only | 2026-05-07 |
Questions
Does LightBR need Fabric API and YACL?
Does a server need LightBR installed?
Which game versions does LightBR support?
In the catalog
LightBR is one of 3,545 Optimization mods on ModsFinder, and one of 2,575 Optimization mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from PixelSam123
Similar mods
What the author says
Some notable ice boat racing servers have begun the process of server integration. While they are finalizing the changes on their end, the behavior of this mod might change without notice. Please stay patient. TLDR - it makes only chunks around driving surfaces (ice, OBU-tagged blocks) rendered, hiding resource-heavy…
Official listing
- Modrinth page
- modrinth.com/mod/lightbr
- Owner
- PixelSam123
- Published
- 2026-07-08
- Updated on Modrinth
- 2026-09-22
- Facts verified
- 2026-10-15