!lag

!lag 3.3.4 — optimization update (Minecraft 26.3)

Performance

• Frame settings snapshot: Terrain compile budget, LOD defer thresholds, entity-extract throttle distance, particle budget, and effective particle cull distance are copied once per rendered frame alongside the existing cull settings, so heavy paths no longer touch live config during every entity, chunk, or particle decision.
• Visibility cache: Sticky entity/block-entity decisions reuse one map probe on cache hits and read visibility interval/worker counts from the frame snapshot instead of the settings singleton.
• Particle budget: The per-tick spawn cap is read once when the world tick changes, not on every particle add call.
• Shader compatibility: During an active render frame, aggressive optimization gating uses the frame snapshot so render hot paths avoid extra settings lookups.

Compatibility

• Client-side only; no intentional visual or gameplay changes.
• Does not include unreleased Sodium-beat, fog, or cloud experiments from other branches.

Testing

• Gradle unit tests and mixin target verification on Java 25; headless client smoke when NOTLAG_SMOKE_TEST is set.
• Optional micro-benchmarks: NOTLAG_MICROBENCH=1 ./gradlew test -Pno_mappings -Pjava25 --tests CullHotPathMicrobench.