Lomka

Main version: 1.21.11.

All optimizations below apply to it. On other versions (1.21, 1.21.9, 26.1, 26.2) some changes are absent due to Minecraft code differences.

Removed

• Entity culling — the mod no longer checks which entities are off-screen and skips their rendering/ticks. Removed entirely (EntityCulling, BlockEntityCulling, EntityTickCull, Frustum, Octree, SmartLeaves + utilities). Too many bugs, and the FPS gain was inconsistent.
• Config — config file, in-game config screen, ModMenu integration. The mod now works out of the box with no settings.
• OpenGL command cache — three mixins that cached viewport/scissor/polygonMode calls. Negligible gain.
• NBT throttling — thread limiting for NBT read/write + file cache. Complexity wasn't worth it.
• Platform abstraction layer — ServiceLoader and PlatformHelper removed. Simpler now.
• Chunk log spam suppression, crash report guard, translucency resort throttle — minor stuff.

Added

The mod was rewritten from scratch. Focus shifted from entity culling to hot-path acceleration and garbage elimination (less GC pressure = fewer stutters):

• Block/model rendering — faster face geometry calculations, model rotations, quaternion/matrix work. Some less allocations and less GC.
• Buffers & vertices — direct memory writes via MemoryUtil, compact color packing (2 instructions instead of 7), no more Math.addExact, cached vertex format hashes. All of these run every frame.
• Camera — fully reworked: reusable objects, unrolled loops, pre-computed near-plane vectors, cached fluid-in-camera check. Smoother movement.
• Math — bitwise operations instead of division, FMA (fused multiply-add) for distance/slerp, pre-computed rotation tables, fast rounding. Small gains that add up every frame.
• ARGB (colors) — all color operations (blending, greyscale, alpha) rewritten: no division, pre-computed lookup tables, bit shifts. Helps particles, banners, maps, etc.
• Audio — optimized buffer creation, source positioning, OGG decoding. Fewer micro-stutters when sounds load.
• Textures — unused mipmap levels get closed (frees VRAM), pre-computed filter weights for MipmapGenerator, palette caching for atlases.
• Fonts — first 8192 characters cached in a flat array instead of HashMap. Every time the game renders text — faster.
• Collections — ArrayListDeque rewritten from scratch (power-of-two capacity, bitwise masking, fixes a vanilla NegativeArraySizeException bug), ByIdMap uses Int2ObjectOpenHashMap. Faster, fewer allocations.
• Hashing — cached toString/hashCode on Identifier/ResourceLocation, Material, Transformation, BakedQuad, InputConstants, VertexFormat, TextureSetup.
• Modifier keys — Shift/Ctrl/Alt checked once per tick instead of every hasShiftDown() call.
• RenderSystem — forces GL debug flags off (debug mode hurts FPS significantly).
• EventLoop — CompletableFuture + LockSupport instead of Thread.yield().
• Shader uniforms — cached GPU buffer slices, static constants for white/zero uniforms, skip redundant writes.

Changed

• Build system — old multi-module Gradle (common/fabric/neoforge) → Stonecutter. Shared codebase with version-specific overrides.
• Package — set.starl → lomka.starl.
• Entry points — separate LomkaFabric and LomkaNeoForge.
• Versions — 1.21.11/Fabric+NeoForge (primary), plus additional variants for 1.21-1.21.1, 1.21.9-1.21.10, 26.1-26.1.2, 26.2.

(AI generated changelog)

Removed:

• Texture decode off-thread (LazyLoadedImageOffThreadMixin, virtual threads)
• Network compression buffer reuse (CompressionDecoderDirectInputReuseMixin)
• Shader program binary cache (config)
• LomkaConfigScreen (in-game config UI, 272 lines)
• CullingContext record
• AOT cache / compact headers logging
• UploadSizedRunnable (dead code)

Updated:

• EntityCullingMixin: removed 3 unused fields (~24 bytes saved per entity)
• LevelRendererAccess: removed dead method isSectionCompiledAndVisible
• EntityRendererCullingMixin: camera hash now uses hash3 (better distribution)
• FrustumMixin: infinite loop replaced with 256 iteration cap (fixes freezes)
• GL caches: call GL11 directly instead of GlStateManager (faster)
• GlRenderPassReuseMixin: collection clearing at HEAD instead of TAIL
• clientTickCullIncludeDisplay: false → true by default

26.1 release

Release: 0.2.0 Added:

• NeoForge support (now works on Fabric + NeoForge)
• Virtual threads for texture decoding (less stutter)
• New entity culling system (2 mixins)
• 5 new render mixins + accessors
• Config options (Java 25+, culling, network)

Removed:

• GLDeviceCacheMixin (1 mixin)

Changed:

• Core logic restructured (LomkaCore)
• Section visibility cache (no longer resets every frame)
• Network compression (reused buffers for less memory usage)
• Math calculations optimized (fma usage)

commit 4

commit 3

commit 2