Lumina — Horizon shader pack

Lumina by cosmo-jar is built around two ideas: high frame rates, and a clean image without post-processing blur. That doesn't mean a short feature list — it has real-time shadows, physically based water, volumetric clouds, god rays and rain puddles. If other shader packs look smeary to you, this one is aimed squarely at your taste.

Features

• Lighting: warm sun with clean azure shadows, sky-dome occlusion, dedicated shading under roofs, eaves, porches and balconies, foliage that glows when backlit.
• Shadows: sun and moon shadow maps tuned to avoid acne on terrain and thin grass, at 512 to 2048 resolution.
• Clarity FXAA: smooths block silhouettes, roofs and stairs only; Sharp, Smooth or Off.
• Water: screen-space reflections combined with planar mirror reflections, depth-based light absorption, Snell's window from below, seabed caustics.
• Clouds and weather: raymarched 3D cumulus clouds with Fast, Balanced and Cinematic presets, volumetric god rays, puddles with ripples on grass and dirt, custom rain and snow, coloured block light.

Compatibility and install

Shader pack, version 1.0.0, for Minecraft 26.3. Install it from the Shader packs tab on the launcher's Mods page (it goes into shaderpacks) and select it under Options > Horizon Settings > Shader Packs. All options live in the shader settings menu. Don't skip the setup step: switch vanilla Clouds off in video settings. More in the shader install guide.

Limitations

"High performance" is the author's claim; the description gives no numbers. The pack is GPL-3.0. Horizon's shader API is still an experimental 0.1, so a game update may require a pack update.