AetherRT

AetherRT is a hardware-accelerated ray tracing mod for Minecraft Java Edition, built around a Vulkan-native rendering architecture.

Ray tracing can be enabled or disabled instantly while in-game without restarting Minecraft or leaving and re-entering the world.

AetherRT is currently in Alpha. Expect bugs, visual issues, performance regressions, and breaking changes between versions.

Features

• Real-time in-game Ray Tracing toggle (Keybind: None by default)
• Distant Horizons Mod Support
  • It is recommended to use the Distant Horizons Seedgen mod alongside it.

NVIDIA

• NVIDIA DLSS Super Resolution
• NVIDIA DLSS Ray Reconstruction
• NVIDIA DLSS Frame Generation
• NVIDIA DLSS Multi Frame Generation
• NVIDIA Reflex

Requirements

• Minecraft Java Edition 26.3
• Fabric API
• A supported NVIDIA RTX GPU
• Recommended minimum VRAM: 8 GB
• Vulkan Ray Tracing support
• Up-to-date NVIDIA GPU drivers

Current Limitations

• AetherRT is currently an Alpha release.
• AMD and Intel reconstruction paths are not currently available.
• Compatibility with other rendering mods is not guaranteed.

Note: When enabling or disabling Ray Tracing, or changing DLSS / Frame Generation settings, Minecraft may temporarily freeze for a few seconds while the renderer is being reconfigured. This is expected behavior; please wait for the operation to complete.

Disclaimer

AetherRT is an independent project and is not affiliated with, endorsed by, or sponsored by Mojang Studios, Microsoft, NVIDIA Corporation, or Khronos Group.

Minecraft and related trademarks are property of Mojang Studios and Microsoft.

NVIDIA, GeForce, RTX, DLSS, Reflex, NGX, and related names and trademarks are property of NVIDIA Corporation.