This shaderpack turns clouds completely white, and everything else, black. It is used to mask out clouds in Photoshop.

CMS 1.1.zip

MC 1.21.2-Snapshot, 1.21, 1.21.6-snapshot, 1.20.2-Snapshot, 1.20.5-Snapshot, 1.21.1-Snapshot, 1.20.2, 1.21.8, 1.20.5, 1.21.5, 1.21.4, 1.21.5-Snapshot, 1.20.1, 1.20, OptiFine, 1.20.6

Release 2026-05-27 Get

Requirements & install

How to use this shader in Minecraft

Shader loader: OptiFine
Minecraft: 1.21 – 1.21.8
Install folder: .minecraft/shaderpacks

Install with OptiFine

Install OptiFine for your Minecraft version (optifine.net) and start it once.
Download the shader pack .zip (do not extract it).
Put the .zip into .minecraft/shaderpacks.
In game open Options → Video Settings → Shaders and select the pack.

Browse more: Iris shaders OptiFine shaders Shaders for 1.21.8 All shaders

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Latest Release

Version

1.21.2-Snapshot, 1.21, 1.21.6-snapshot, 1.20.2-Snapshot, 1.20.5-Snapshot, 1.21.1-Snapshot, 1.20.2, 1.21.8, 1.20.5, 1.21.5, 1.21.4, 1.21.5-Snapshot, 1.20.1, 1.20, OptiFine, 1.20.6

Download Latest

Details

Loaders

OptiFine

Minecraft Versions

MC 1.21.8 MC 1.21.6-snapshot MC 1.21.5 MC 1.21.5-Snapshot MC 1.21.4 MC 1.21.2-Snapshot MC 1.21.1-Snapshot MC 1.21

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CMS - Cloud Mask Shaders

Requirements & install

Install with OptiFine

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CMS - Cloud Mask Shaders

Requirements & install

Install with OptiFine

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