Radiance (Windows)

Radiance (Windows)

Radiance is rebuilt of Minecraft OpenGL on a Vulkan C++ backend, featuring native Hardware Ray Tracing. Break free from OpenGL limits for Minecraft on Windows.

by
91.2K Downloads
fabricdecorationoptimization
Configure a Compatible Minecraft Server

Screenshots

Colorful corridor
Reflections
Glowing ores
The overworld
The nether
The lush cave

About this Mod

Radiance

Important: This modrinth project contains only Windows versions of Radiance. For Linux versions, please view this modrinth project.

Radiance is a Minecraft mod that completely replace the vanilla OpenGL renderer with our Vulkan C++ renderer, which supports high performance rendering and hardware-accelerated ray tracing.
Due to the variety of C++ usage in the modern industrial rendering pipeline, a seamless integration of a modern industrial rendering module (such as DLSS and FSR) into our Vulkan C++ renderer is thus possible.

Cover

System Requirements

Operating System: Windows 10/11 (64-bit)

Graphics API: Vulkan-compatible GPU with VK_KHR_ray_tracing_pipeline extension

Hardware: GPU with VK_KHR_ray_tracing_pipeline extension (NVIDIA RTX Series or AMD/Intel cards supporting this extension)

Installation Guide

Please view Github Pages for detailed installation guides.

Credits

This project uses Vulkan technology. Please refer to this page for more information.

This project uses Nvidia's DLSS (Deep Learning Super Sampling) technology. Please refer to this page and this page for more information.

This project uses FSR3. Please refer to this page for more information.

This project uses XeSS SR. Please refer to this page for more information.

Special thanks to all contributors of open-source libraries used in this project, including NRD, GLFW, GLM, STB Image and VMA. If any are not credited and should be, please inform the author and credit will be applied where required.

Disclaimer

  • This is a community-made third-party mod and is not affiliated with, authorized, sponsored, endorsed by, or otherwise officially connected to Mojang Studios or Microsoft. A commonly used wording on mod platforms is: "NOT AN OFFICIAL MINECRAFT SERVICE. NOT APPROVED BY OR ASSOCIATED WITH MOJANG OR MICROSOFT."
  • Minecraft and related names, logos, and assets are trademarks and/or intellectual property of Mojang Studios and/or Microsoft.
  • This project is also not affiliated with, sponsored by, or endorsed by NVIDIA. NVIDIA / GeForce / RTX / DLSS are trademarks of NVIDIA Corporation and remain the property of their respective owners.
  • This mod is provided "AS IS" without warranties. You assume all risks arising from its use (including, but not limited to, crashes, visual issues, data loss, or incompatibilities with other mods). Please back up your worlds and configs before installation.

Available Versions

Radiance (Windows) 0.1.5-alphaalpha
MC 1.21.4fabric
April 29, 2026
Radiance (Windows) 0.1.4-alphaalpha
MC 1.21.4fabric
March 21, 2026
Radiance 0.1.3-alpha-windowsalpha
MC 1.21.4fabric
February 9, 2026
Radiance 0.1.1-preview-windowsalpha
MC 1.21.4fabric
January 2, 2026
Radiance 0.1.0-preview-windowsalpha
MC 1.21.4fabric
December 31, 2025

How to Install Radiance (Windows) on Your Client

1

Install the Mod Loader Locally

Install fabric for your local Minecraft version.

2

Download the Matching File

Choose the Radiance (Windows) file for fabric and Minecraft 1.21.4.

3

Install Mod

Place the .jar file in your local .minecraft/mods folder and restart Minecraft. No server-side installation is required.

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.4

Server-side

Unsupported

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Does Radiance (Windows) need to be installed on the Minecraft server?

No. Modrinth marks Radiance (Windows) as unsupported on the server side. Install it only in your local Minecraft mods folder. Your server can remain unchanged unless the mod page lists an additional dependency.

Which version and loader does Radiance (Windows) require?

Use a file for fabric and your exact Minecraft version. Supported versions include 1.21.4. Files for different loaders are not interchangeable.

Radiance (Windows) is not working – what should I check?

First check the Minecraft version, loader version and required dependencies. Put the .jar file in your local .minecraft/mods folder and remove older duplicates. Because this mod is client-side, adding server RAM will not fix it.

Minecraft Server for Your Group

Radiance (Windows) stays on your client. Host a compatible world for your group.

Recommended RAM
4 GBfrom €5.2/mo
Minimum 3 GB | per 8 players
Create Server Now
Client Compatibility Guide
NVMe SSD Storage
DDoS Protection included

Details

License
GNU General Public License v3.0 only
Server-side
Unsupported

Supported Versions

1.21.4