ShadersJava
Halcyon Shaders (26.3, 1.20.1) – An Atmospheric Shaderpack
Java shader pack listed for Minecraft 1.20–26.x. File opened and checked on 30 Sep 2026; downloads from the MC Java Mods app on Android.
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Halcyon Shaders is a realistic / atmospheric shader, employing heavy use of features such as volumetric clouds, fog, and PCSS. A more artsy / nostalgic shader that goes back to the roots of Minecraft shaderpacks.
Features:
- Custom lighting.
- Dynamic shadowing from the sun/moon.
- Percentage-closer soft shadowing & a percentage-closer filter.
- Physically-based diffuse shading.
- A physically-based atmospheric scattering model for the sky & sun/moon.
- Screen-space reflections.
- Physically-based specular highlight (GGX).
- Refraction.
- Dual-deferred rendering of solid & transparent blocks.
- Shadow-space / projected caustics.
- Volumetric fog & lighting.
- Height fog.
- Water fog.
- Cycle fog (day-to-day fog variation).
- Morning fog.
- Volumetric mist.
- Coloured volumetric lighting & volumetric caustics.
- Bloom.
- Depth of field.
- Volumetric clouds.
Screenshots:
Halcyon Shaders Download Links
Quick facts
- Edition: Minecraft Java
- File type: .zip (resource pack)
- Minecraft versions listed: 26.3, 1.20.1
- How to install: Download the .zip resource pack — do not unzip it. → Put it in .minecraft/resourcepacks. → Enable it in Options → Resource Packs.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
Halcyon Shaders (26.3, 1.20.1) – An Atmospheric Shaderpack is a free Minecraft Java shader. Compatible with Minecraft 26.3, 1.20.1. Download it and open it directly in the game.