What is this?
mcopt is a Minecraft mod that adds a native Metal renderer for Minecraft: Java Edition, aimed specifically at making the game run faster on Apple Silicon Macs.
mcopt is a Minecraft mod that adds a native Metal renderer for Minecraft: Java Edition, aimed specifically at making the game run faster on Apple Silicon Macs.Is this a standalone app or a mod I load into Minecraft?It is a Fabric mod jar file that you drop into your Minecraft mods folder alongside a specific build of Sodium; it is not a separate application.
It is a Fabric mod jar file that you drop into your Minecraft mods folder alongside a specific build of Sodium; it is not a separate application.What do I need before installing this?You need an Apple Silicon Mac on macOS 26+, Java 25, Minecraft 26.3, Fabric Loader 0.19.5, and exactly Sodium 0.9.3 (sodium-fabric-0.9.3-alpha.1+mc26.3.jar) — other Sodium versions won't launch.
You need an Apple Silicon Mac on macOS 26+, Java 25, Minecraft 26.3, Fabric Loader 0.19.5, and exactly Sodium 0.9.3 (sodium-fabric-0.9.3-alpha.1+mc26.3.jar) — other Sodium versions won't launch.What should I watch out for before trying this?It's explicitly alpha software, so the README warns to back up your worlds; only the exact pinned Sodium build works, mods that call OpenGL directly can't render on the Metal backend, and Distant Horizons forces mcopt back to plain OpenGL, losing the renderer speedup.
It's explicitly alpha software, so the README warns to back up your worlds; only the exact pinned Sodium build works, mods that call OpenGL directly can't render on the Metal backend, and Distant Horizons forces mcopt back to plain OpenGL, losing the renderer speedup.Does this work on Intel Macs too?No, it's built only for Apple Silicon Macs on macOS 26 or later; there's no Intel support mentioned anywhere in the README.
No, it's built only for Apple Silicon Macs on macOS 26 or later; there's no Intel support mentioned anywhere in the README.How much of an fps boost does mcopt give?On a Mac mini M4 it went from roughly 1094-1103 fps to 1072-1119 fps while spinning, and on a 5-core GPU MacBook from 379-449 fps to 460-471 fps, so gains are modest on high-end GPUs and bigger on lower-end ones.
On a Mac mini M4 it went from roughly 1094-1103 fps to 1072-1119 fps while spinning, and on a 5-core GPU MacBook from 379-449 fps to 460-471 fps, so gains are modest on high-end GPUs and bigger on lower-end ones.What is the 'far terrain' setting?It's an experimental opt-in long-distance terrain feature enabled by setting mcopt.lod=true in config/mcopt.properties, recommended only for Macs with 10 or more GPU cores since it costs significant fps on weaker GPUs.
It's an experimental opt-in long-distance terrain feature enabled by setting mcopt.lod=true in config/mcopt.properties, recommended only for Macs with 10 or more GPU cores since it costs significant fps on weaker GPUs.Does mcopt work with other optimization mods like Lithium?Yes, but mcopt deliberately disables some of its own chunk patches when Lithium, C2ME, or ScalableLux are installed to avoid conflicts.
Yes, but mcopt deliberately disables some of its own chunk patches when Lithium, C2ME, or ScalableLux are installed to avoid conflicts.What's planned for future versions?The roadmap includes enabling far terrain by default with tiers for smaller Macs, optional custom BSL-level shaders, faster native world generation, more server-tick/chunk optimizations, and faster startup.
The roadmap includes enabling far terrain by default with tiers for smaller Macs, optional custom BSL-level shaders, faster native world generation, more server-tick/chunk optimizations, and faster startup.What are similar projects?dlssg_for_sm86, DLSS-NR-on-AMD, OptiScaler-DLSSNR-PreSR-Multipass, p2-rtx, DLSS5-Feeder, 1-Click-DLSS5, d4r, MoltenVK
dlssg_for_sm86, DLSS-NR-on-AMD, OptiScaler-DLSSNR-PreSR-Multipass, p2-rtx, DLSS5-Feeder, 1-Click-DLSS5, d4r, MoltenVKWhich topics is it in?fabric, graphics-programming, gpu-programming, mac, game-modding, optimization, modding, rendering, apple, graphics, gpu-acceleration, game
fabric, graphics-programming, gpu-programming, mac, game-modding, optimization, modding, rendering, apple, graphics, gpu-acceleration, game