Path tracing shaders for Minecraft 1.21 on OptiFine
Shaders: list
LIGHT Ray Shaders
Light but not just light, make you enjoy advanced render with no lag.Install
Luster Shaders
Cinematic Minecraft Shader built off Photon and is for Iris. Dynamic atmosphere, volumetric clouds, Screen Space Path Tracing, PBR, water & reflections — built for gameplay, all with Apple Silicon in mindInstall
Oct-Path
Minecraft shaderpack with Octree-like acceleration structure for its raytracingInstall
Foxy shader
An in-development shader with global ray tracing and some interesting features.Install
SEUS PTGI HRR Reforged
SEUS PTGI HRR 2.1 Reforged is a community-made modification of Sonic Ether's SEUS PTGI HRR 2.1, aimed at improving image quality and performance, adding more configuration options, fixing visual issues, and introducing new features.Install
Lumenite Shaders
A high-end shader focused on great visuals, packed with features like blocklight shadows, colored block lighting, CSM shadows, realistic water physics (vertex manipulation), shader grass, snow footprints, volumetric clouds, god rays and much more.Install
Ripple Shaders
Shaders with glowing ores, cinematic godrays, and metallic reflections.InstallFAQ
What do I need to get shaders working?
Iris or OptiFine. Iris installs as a Fabric mod and is usually faster; OptiFine is a separate installer. Without one of them the game simply won't see the shader. Millida Launcher installs Iris along with the shader for you.
Which shaders run on a low-end PC?
Light packs without ray tracing and with low shadow resolution. They're marked in the catalog — they give you shadows and water while costing noticeably fewer frames.
How do I install shaders?
Click “Install” and Millida Launcher will put the shader into the shaderpacks folder of the right modpack. Then select the pack in the video settings — no need to unpack the archive.
Iris or OptiFine — which should I choose?
For new versions, Iris: it works with Sodium, usually gives more FPS and supports almost all modern shaders. OptiFine is needed on old versions and for packs that rely on its special features. The two cannot be installed in the same instance.
Are there shaders for Bedrock?
The shaders in this section are for the Java edition; their format does not work in Minecraft PE and Bedrock. Bedrock has a built-in Vibrant Visuals graphics mode and resource packs with deferred rendering support, which are turned on in the game settings.
Path tracing shaders for Minecraft 1.21 on OptiFine
Path tracing shaders for Minecraft 1.21 on OptiFine: 8 items in the Shaders section. Compatibility is checked against the files, not the description: only items with a build for exactly these conditions stay in the list.
Beauty costs frames. Heavy ray-traced shaders can cut performance several times over even on a good graphics card, so the catalog separately marks light packs built for weak machines: they give you shadows and decent water while barely touching FPS. In practice: first install Iris or OptiFine, then put the shader archive in the shaderpacks folder and select it in the video settings. It's best to start with a light pack, and the quality profiles inside the shader itself lower the load even further.