Easy Patterns
4×4 tiled staggered dots with a border
A picture built in steps: tile, then draw staggered dots, then color it, then finish with a border. Every step is listed below with its exact numbers.
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 518 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
- Space
p = (uv - 0.5) * float2(aspect, 1.0)- Step 1: Tile
p = frac(p * 4.0 + 0.5) - 0.5 (repeat the picture 4 times across)- Step 2: Pattern
g = p * 5.0; g.x += 0.5 * fmod(floor(g.y) + 1000.0, 2.0); f = frac(g) - 0.5; m = 1.0 - smoothstep(0.32, 0.35, length(f))- Step 3: Colors
lerp(float3(0.1, 0.07, 0.17), lerp(float3(0.52, 0.42, 0.93), float3(0.51, 0.93, 0.45), uv.y), m)- Step 4: Finish
edge = min(min(uv.x, 1.0 - uv.x), min(uv.y, 1.0 - uv.y)); col = lerp(float3(0.47, 0.88, 0.97), col, smoothstep(0.06, 0.066, edge))
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