Phosphor

June 20th - Work is still being done on the Phosphor 0.3.0 release. The current blocker is replacing Sponge Mixins with our own library to allow the development of new optimizations for Minecraft 1.13+.

Support and follow development

You can help support development by making a monthly pledge on Patreon using the strange and exotic currencies people carry around in their pockets! If you'd rather make a one-time tip, you can also provide support by buying me a cup of coffee on Ko-Fi! There's also a Discord server, if that's your sort of thing.

Announcing, Phosphor!

Phosphor is a Minecraft mod aiming to save your CPU cycles and improve performance by optimizing one of Minecraft's most inefficient areas-- the lighting engine. It works on both the client and server, and can be installed on servers without requiring clients to also have the mod. With Phosphor, the time spent generating chunks can be reduced by almost 80% for some dimensions, and server tick rate can be just as greatly improved by freeing up the CPU to work on other tasks.

The inclusion of modded dimensions above does not imply endorsement of this mod by the mod developer(s) and are only presented for comparison sake. For brevity sake, this comparison only includes a small selection of mods.

Sounds too good to be true? Phosphor has already shipped enabled by default in the very widely known Aether II mod. Check it out here, and maybe considering installing it today!

What is this mod?

Phosphor significantly improves the performance of Minecraft's lighting engine by implementing a handful of optimizations while also fixing many long-standing lighting engine bugs. These optimizations can bring significant improvements to the amount of time it takes to generate a Minecraft world.

For the technically inclined, expand the spoiler below to see what exactly we do to improve performance.

While Phosphor is still in a beta stage, mod incompatibilities and bugs are rare, and for the most part can be considered stable. The next release of Phosphor (version 0.3.0) will represent a stable release candidate which will eventually be promoted a stable build on CurseForge.

What is this mod not?

While this is a significant improvement of vanilla's lighting engine implementation, it does not make any changes to how the light model in Minecraft works. In layman's terms, this mod does not change how light is rendered (except where bugs are fixed) or add new features to Minecraft, allowing it to work without the mod being installed on the client/server. The fixes and optimizations provided by Phosphor are specific to improving the lighting engine.

Mod compatibility

Modpack Permissions

This is a free and open-source project on CurseForge, and as such-- of course you can include it in your modpack! While not required, it's much appreciated if you link back to Phosphor's project page and Patreon in your mods list or credits page.

Special thanks

This mod would not have been possible without the contributions made by Mathe172 and PhiPro95. Some components of this mod are inspired and/or based off their previous work.

Reporting issues

Please use the issue tracker linked at the top of the page to report bugs, crashes, and other issues. The Curseforge comments section is not the place to report these kinds of problems and will likely result in you being asked to forward it to the issue tracker.