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PSX-Core Shader

PSX-Core Shader

SHADER
A PSX shader with affine texture mapping, dithering, vertex snapping and more!
by Dooji
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233,960 downloads
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Updated Oct 14, 2026
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Fantasy Vanilla
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PSX-Core Shader in a snowy forest

A Minecraft shader that recreates PS1 visuals. Features:

  • Ordered dithering
  • 5-bit per-channel color quantization
  • Gouraud shading with banded light levels
  • Vertex snapping
  • Affine texture mapping
  • Fog (scary)

Most of these are configurable via the shader settings! Only thoroughly tested with Iris on 1.21.11 (works on older versions too, please report bugs). Works with DH & Voxy.

Preview

See more on the Gallery page!

With fog (default): PSX-Core Shader in a snowy forest with fog on

Without fog: PSX-Core Shader in a snowy forest with fog off

In a cave: PSX-Core Shader in a dark-ish cave

Modpacks are welcome to use this shader, only via adding it as a dependency to your modpack. Do not reupload or repack this shader.

PSX-Core Shader v0.1.7
MC 1.16.3, 1.13.1, 1.9.3, 1.8.7, 1.17.1, 1.9.1, 1.21, 1.16.1, 1.18.1, 1.14.3, 1.15, 1.16, 1.13, 1.16.5, 1.10.2, 1.19.3, 1.20.2, 1.19.4, 1.21.8, 1.8.8, 1.9.4, 1.9.2, 1.8.4
Release 2026-09-08 Get
PSX-Core Shader v0.1.6
MC 1.16.3, 1.13.1, 1.9.3, 1.8.7, 1.17.1, 1.9.1, 1.21, 1.16.1, 1.18.1, 1.14.3, 1.15, 1.16, 1.13, 1.16.5, 1.10.2, 1.19.3, 1.20.2, 1.19.4, 1.21.8, 1.8.8, 1.9.4, 1.9.2, 1.8.4
Release 2026-07-16 Get
PSX-Core Shader v0.1.5
MC 1.16.3, 1.13.1, 1.9.3, 1.8.7, 1.17.1, 1.9.1, 1.21, 1.16.1, 1.18.1, 1.14.3, 1.15, 1.16, 1.13, 1.16.5, 1.10.2, 1.19.3, 1.20.2, 1.19.4, 1.21.8, 1.8.8, 1.9.4, 1.9.2, 1.8.4
Release 2026-02-21 Get
PSX-Core Shader v0.1.4
MC 1.16.3, 1.13.1, 1.9.3, 1.8.7, 1.17.1, 1.9.1, 1.21, 1.16.1, 1.18.1, 1.14.3, 1.15, 1.16, 1.13, 1.16.5, 1.10.2, 1.19.3, 1.20.2, 1.19.4, 1.21.8, 1.8.8, 1.9.4, 1.9.2, 1.8.4
Release 2026-02-11 Get
PSX-Core Shader v0.1.3
MC 1.16.3, 1.13.1, 1.9.3, 1.8.7, 1.17.1, 1.9.1, 1.21, 1.16.1, 1.18.1, 1.14.3, 1.15, 1.16, 1.13, 1.16.5, 1.10.2, 1.19.3, 1.20.2, 1.19.4, 1.21.8, 1.8.8, 1.9.4, 1.9.2, 1.8.4
Release 2026-02-05 Get
PSX-Core Shader v0.1.2
MC 1.21, 1.18.1, 1.19.3, 1.20.2, 1.19.4, 1.21.8, 1.20.5, 1.21.5, 1.18, 1.21.4, 1.20.1, 1.20, OptiFine, 1.20.6, 1.21.1, 1.21.6, 1.21.3, 1.21.7, 1.19.1, 1.20.4, 1.18.2, 1.19.2
Release 2026-01-17 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

  1. Install OptiFine for your Minecraft version (optifine.net) and start it once.
  2. Download the shader pack .zip (do not extract it).
  3. Put the .zip into .minecraft/shaderpacks.
  4. 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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