Lomka

An open source mod with mix of small optimizations for your Minecraft. Fewer stutters, slightly improvements: more FPS (up to 4.58% increase depends on your hardware), faster resource loading, world generation and reduces memory usage.

Optimizations

• Faster hot-path math and color engine
• Faster texture atlas animation and light engine updates
• Less garbage in render and tick loops
• Caching where vanilla repeats work
• Faster block collision scans and a cached block-sturdiness bitmask
• Cached voxel shape AABBs and allocation-free raycasts
• Bulk NBT array reads for world, player and structure data on the server side (chunks, heightmaps, saves load in blocks instead of per-element stream calls)
• Faster heightmap priming for world generation
• Cached font glyph advances for faster text rendering
• Playing a sound no longer waits for the sound thread
• Fewer native buffer reallocations (audio streaming and mesh building)
• Faster block and section traversal, plus in-place worldgen RNG reseeds (also, check incompatibilities list)
• Cached uniform palette lookups
• Zero-alloc framebuffer and GPU uniform caching (26.3 renderpearl backend)
• Cheaper resource scanning and metadata reads
• Leaner network buffers (without affecting your connection)
• Fewer redundant OpenGL calls
• Removing Thread.yield() from the render thread
• And many other small bugfixes in the game's code

Versions

1.21.11 is the main version. It carries the full set of optimizations and gets the most testing.

Other supported versions (1.19.2-26.3) are ports of the same or with the less of features set.

FAQ

I see performance drops with Lomka installed

Update to the latest build for your MC version first. Try out Lomka's best versions: 0.2.0, 0.2.1, (0.4.x, 0.5.x) and 0.6.x

Still bad? Report it (link below).

Is it server-side compatible?

Yes, it is.

Will be mod backports below Minecraft version 1.19.2?

No. The mod closely follows modern Minecraft internals. Surely, it is possible but not really needed.

Can I add this mod in my modpack?

Sure. Lomka is free and open source. Check out how it goes on your modpack first.

Configuration

Lomka has no in-game GUI. Instead, on first launch it creates config/lomka-mixins.properties with basic mixin configuration.

The full list of mixins with descriptions lives in the wiki.

Compatibility

This should work fine with most mods (like Sodium, Lithium, Iris, FerriteCore, ModernFix, ImmediatelyFast and even VulkanMod) but no guarantees at all.

Known conflicts are listed with Lomka versions in the incompatibilities list.

Bug reports

Found something that only happens with Lomka?

1. Try reproducing it without Lomka first.
2. Still there? Post it on the issue tracker with an optional log attached.

Please don't report Lomka-related crashes to other mod authors, because Lomka's mixins are cruel that could break unrelated systems.

Credits

Lomka was created by Starlev and contributors.

Also, other mods credits for their's effecient work!

• VecDeltaCodec zero-delta path adapted from Collections Of Optimizations by Misanthropy (LGPL-3.0).
• Vec3i PhiMix hashing credits efficient_hashing by ZZZank (CC0-1.0).
• The legacy hardware-blit presentation path references from Tritium (MIT), but popularized in VulkanMod (LGPL-3.0-only).