ShaderBattle

Easy Filters

Pixelate

Turn the picture into big 20-pixel-style blocks: 40 × 30 cells.

Play this challenge All challenges
The target picture for the shader challenge "Pixelate"
Recreate this picture. You pass at a 99% match, then try to write it in fewer characters than the par.

How this challenge works

You write a fragment shader that draws the picture above, live in your browser. A match bar shows how close you are, and the score combines accuracy, code size (the par is 717 characters in Unity (Built-in)) and GPU speed. Work in HLSL, GLSL, WGSL, Metal or Godot and export the result when you are done.

The numbers you need

Cells
float2(40.0, 30.0)
Trick
sample the scene at the center of the pixel's cell instead of at the pixel itself

Helper functions provided

The toolbox has: scene(). Add them above your frag function with one click.

Solve it in your language

Unity (Built-in), Unity (URP), Unreal, Shadertoy / WebGL, OpenGL (LWJGL, raylib), three.js, GameMaker, LÖVE (Lua), Godot, Apple (iOS, macOS), WebGPU / Bevy.

Start coding

More filters challenges