MC FSR

MC FSR is a client-side Minecraft mod that adds AMD FidelityFX Super Resolution upscaling and optional frame generation. Render the world at a lower resolution, then reconstruct the image for your display.

FSR 1 is enabled by default. Temporal upscaling and frame generation are separate opt-in features.

Features

• FSR 1: Spatial upscaling with RCAS sharpening.
• FSR 2.1.2 and FSR 3.1.5: Optional temporal upscaling with separate settings for quality and sharpness.
• FSR 3.1 frame generation: Optional generated frames on supported configurations. Requires VSync.
• Shader integration: Supported paths retain shader effects without editing shader-pack files or saving temporary option overrides.
• Explicit fallback: Unrecognized shader sources and unsupported paths use FSR 1 before projection jitter.

Available builds

Version 0.3.2 Beta has seven version-specific files:

Install only the file for your Minecraft version and loader. Fabric builds require the matching Fabric API. Vanilla use does not require a shader pack, Iris, Sodium, or Distant Horizons.

The Forge 1.12.2 file is not a Cleanroom build. Cleanroom is not included in this CurseForge release.

Shader compatibility

Verified temporal shader paths use OpenGL. Tested configurations include selected versions of Complementary, Euphoria Patches, Spooklementary, BSL, Potato, SDV, Nostalgia, MakeUp, Solas, Bliss, Photon, and Sildur's Enhanced Default.

Support differs between files. A supported pack name does not mean every version, setting, or modpack is verified.

• Minecraft 26.3 has the broadest tested shader-family coverage.
• The newer 1.20.1 family checks mainly use minimal Iris profiles, not complete modpacks. Some lifecycle checks remain incomplete.
• The 1.19.2 and 1.21.11 builds include verified Iris checks for BSL, Potato, and SDV.
• The 1.21.1 and 1.16.5 builds retain older verified Complementary/Euphoria support. They do not include the newer non-Complementary adapters.
• Stock Forge 1.12.2 shader checks cover exact Reimagined 5.9.3 and Unbound 5.6.1 sources with OptiFine G5 in isolated RLCraft copies. Shader frame generation is blocked on this path.

For Oculus on Minecraft 1.20.1, use the Fabric file through Connector with Forgified Fabric API. This is not a native Forge port. Frame generation remains unsupported with Oculus.

Read the target-specific file changelog before installing. Shader packs and compatibility mods are not bundled.

Requirements and beta limits

• Use OpenGL 4.5, or Minecraft 26.3's built-in Vulkan renderer. Older Minecraft builds support OpenGL only.
• Temporal upscaling and frame generation require Vulkan 1.2 compute, even when Minecraft uses OpenGL. The OpenGL path also requires compatible cross-API memory and semaphore support on the same GPU.
• Native libraries are included for x86_64 Linux and Windows. GPU runtime validation has been performed on Linux; Windows remains untested. ARM and macOS support is not claimed.
• Temporal motion data comes from the camera, not independent object motion. Moving entities and shader animation can show ghosting.
• New non-Complementary adapters use FSR 1 whenever Distant Horizons is loaded, even when its rendering is disabled. Iris and Distant Horizons cannot be used together on the 1.16.5 target.
• Some Minecraft 26.3 Distant Horizons tests rendered successfully but timed out during shutdown.

Full shader, effect, and modpack coverage remains incomplete. Test new combinations in a separate instance. No specific FPS, latency, or frame-pacing improvement is promised.

Settings

Open Options > FSR Settings… or run /mcfsr settings in a world. Choose the upscaler, quality, and sharpness. Enable frame generation separately and turn on VSync if you use it.

Apply saves changes. Cancel or Escape discards them. Reset Defaults changes only the draft until you select Apply.