Retro PS1 Shader

Retro screen effects for vanilla Minecraft 26.3+. No Iris, no OptiFine, no mods. Just a resource pack and the new /posteffect command.

11 ready-made looks: old PS1 horror, clean PS1, CRT TV, VHS tape, N64, Game Boy and Silent Hill fog. Each one is a single command.

How to use

1. Put the pack in your resourcepacks folder and enable it.
2. Turn an effect on: /posteffect add @s rppe:ps1_horror
3. Turn it off: /posteffect remove @s rppe:ps1_horror or remove everything: /posteffect clear @s

Effects

Name	What it looks like
ps1_horror	Low resolution, 15-bit color, dithering, grain, dark foggy corners. The main one
ps1_horror_nodither	Same, without the dither pattern
ps1_horror_novignette	Same, without the dark corners
ps1_lowres	Same, with bigger pixels
ps1_crt	PS1 horror on an old CRT TV: scanlines and RGB mask
ps1_clean	Just the PS1 look. No horror, normal colors
ps1_clean_nodither	Same, without dithering (you get visible color bands)
n64_blur	Soft, blurry N64 style
vhs	VHS tape: line jitter, color bleed, blur, light noise
gameboy	160x144 in four Game Boy greens
silent_fog	Washed out colors and thick white fog around the edges

The HUD (hotbar, chat, inventory) stays clean. The effects only change the world view.

Tweaking

Every effect has its settings as numbers at the top of its file in assets/rppe/shaders/post/: pixel size, grain, vignette, colors, fog. Edit, save, press F3+T.

Requirements

• Minecraft Java 26.3 or newer
• Client side only. Nothing needed on the server

Using the pack

You can include this pack in modpacks and server resource packs.