Sflp Shaders Instant

// cheap distance field float d = length(p) - 0.5;

// raw sinusoidal waves on axes vec2 q = p; q.x += sin(time * 1.7 + p.y * 8.0) * 0.1; q.y += cos(time * 1.3 + p.x * 7.0) * 0.1; sflp shaders

// sflp: stupid-fast lightweight fragment // dimensions: 640x360 | fps: 999+ | mem: 4 registers // license: unlicense | author: shader.elf precision mediump float; uniform vec2 resolution; uniform float time; // cheap distance field float d = length(p) - 0

void main() // normalized pixel coord (-1..1) aspect corrected vec2 p = (gl_FragCoord.xy * 2.0 - resolution) / min(resolution.x, resolution.y); uniform vec2 resolution

gl_FragColor = vec4(col, 1.0); // sflp vertex: no camera, no matrix, just NDC quad attribute vec2 position; varying vec2 uv; void main() uv = position * 0.5 + 0.5; // (0..1) if position is -1..1 gl_Position = vec4(position, 0.0, 1.0);

// 3-tone palette: black / hot pink / cyan vec3 black = vec3(0.0); vec3 pink = vec3(1.0, 0.2, 0.8); vec3 cyan = vec3(0.2, 0.9, 1.0);