Smoothgl
ModHonest micro-stutter fixes for 1.21.4 Fabric: frame pacer, raycast occlusion, entity/particle/name-tag/beacon culling, GC watcher, JIT warmup, network input-lag tuner, adaptive auto-tuner, real-time stutter profiler with telemetry HUD. Честные фиксы микро
Type
Mod
Modrinth Downloads
921
Modrinth ID
aAWPNtd6
Last Updated
Jun 26, 2026
Description
0.1.0 (Initial Release)
Features
- Frame profiler with stutter detection and breakdown HUD (F7)
- Adaptive distance culling for entities, block entities, particles, and armor layers
- Occlusion culling via raycast with TTL cache for entities and particles
- GPU frame pacer with configurable frames-in-flight depth
- JIT warmup on startup to reduce early-game micro-stutters
- Direct-buffer pre-touch on startup (configurable size)
- GC watcher to monitor pause times
- Network tuner (TCP_NODELAY, larger buffers, IP_TOS_LOWDELAY)
- Packet pump for reduced input lag on high-FPS clients
- Ping monitor with HUD display
- In-world debug renderer (F9 toggle) for cull boundary and occlusion rays
- Custom telemetry graphs (frame-time bars + ping line) in HUD
- Startup phase timer with /smoothgl startup command
Commands
- /smoothgl - status overview
- /smoothgl breakdown - frame breakdown
- /smoothgl startup - startup timing report
- /smoothgl dump - stutter dump
- /smoothgl reset - reset profiler
- /smoothgl set <key> <value> - runtime config
Keybinds
- F7 - Toggle frame breakdown HUD
Configuration
- All settings in config/smoothgl.properties
- Runtime-configurable via commands
Compatibility
Mod Loaders
Game Versions
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