Opticores

 [](https://ko-fi.com/lilbroskato) **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) | Configuration | Min FPS | Avg FPS | Max FPS | |---|---|---|---| | Vanilla | 2 | 45 | 149 | | Sodium | 30 | 147 | 255 | | Sodium + OptiCores | 84 | 270 | 396 | | Comparison | Min | Avg | Max | |---|---|---|---| | Sodium vs Vanilla | +1400% | +227% | +71% | | Sodium + OptiCores vs Sodium | +180% | +84% | +55% | | Sodium + OptiCores vs Vanilla | +4100% | +500% | +166% | ## **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.