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Colorblind Swap - Time-Varying Color Perception Shader

SHADER

A cursed shader that periodically changes how Minecraft's colors are perceived, creating a shifting visual experience.

Colorblind Swap is a lightweight full-screen post-processing shader that alters how colors are perceived over time. Instead of applying a fixed color filter, the shader periodically changes the relationship between color channels, causing different parts of the spectrum to be interpreted in new ways. The result is a shifting visual experience where familiar environments can temporarily appear as though viewed through different forms of altered color perception.

This shader is designed for players who want to break away from static visuals and explore a dynamic, almost hallucinatory version of Minecraft. It is particularly suited for creative builders, adventure map makers, or anyone seeking a cursed or fantasy twist on vanilla graphics. Note that Colorblind Swap is not a colorblind accessibility tool—it deliberately distorts perception for artistic effect, and may disorient some players during fast movement or PvP.

  • Dynamic Color Perception Shifts - The shader operates in timed intervals and selects a new color interpretation mode for each cycle, cycling through multiple channel remapping variants.
  • Vanilla-Like Performance - As a lightweight post-process effect, it runs on most systems without heavy GPU load, preserving base Minecraft frame rates.
  • No Configuration Required - Simply install and enable; the timing and color modes are pre-set for a curated experience.
  • Compatible With Other Shaders - Works with OptiFine and Iris, and can be layered on top of other shader packs by placing it last in the load order.
  • Unique Cursed Aesthetic - Each cycle produces unpredictable but repeatable color shifts, ideal for roleplay, horror maps, or experimental builds.

Requirements: Minecraft Java Edition with OptiFine (HD U or later) or Iris Shaders. No additional mods are needed. The shader is resolution-independent and runs at any render distance, though extremely high particle counts may cause subtle flickering. Not recommended for competitive multiplayer due to the time-varying visual distortion.