Easy Patterns
Diamond lattice with a dark vignette
A picture built in steps: draw diamond lattice, then color it, then finish with a dark vignette. 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 374 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: Pattern
e = abs(frac(p * 7.0) - 0.5); m = step(0.34, e.x + e.y)- Step 2: Colors
lerp(float3(0.18, 0.1, 0.2), lerp(float3(0.88, 0.42, 0.83), float3(0.82, 0.87, 0.33), uv.y), m)- Step 3: Finish
col *= 1.0 - 0.6 * smoothstep(0.3, 0.75, length(s)), s = (uv - 0.5) * float2(aspect, 1.0)
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