Opticores

Opticores is a client-side mod that works with Embeddium and Sodium on (Neo)forge and Fabric for 1.21.x, made to fix the bottleneck that integrated graphics (Intel UHD) and low-end devices.

Performance — Minecraft 1.21.1 (Cherry Grove)

Test system: Intel i3-1115G4 (2 Cores/4 Threads) • Intel UHD Graphics • 16 GB RAM (2133 MT/s)

How it works:

• Asynchronous Culling Pipeline (ACP):

Distance and frustum intersection math moves off the main rendering thread onto a background worker instead of blocking each frame.

• Concurrent Data Management (CDM):

The culling output is stored in a thread safe ConcurrentHashMap so the render thread reads the chased result instead of reloading it every frame.

• Dynamic Load Throttling (DLT):

Monitors chunk loading and temporarily scales back entity rendering during harsh world loading, teleporting to a new area, so the terrain generation gets priority.

• Compatibility:

Bypasses for custom block entities like Create’s and coordination with Distant Horizons or Voxy to avoid culling conflicts during LOD making.