Liquid Chrome

A canvas and a module script, nothing to install. Set canvas.dataset.tps from your stream, or call canvas.token() once per token.

<canvas id="shader-liquid-chrome" data-tps="75" data-color="#8fd3ff" style="display:block;width:100%;height:240px;border-radius:12px"></canvas>
<script type="module">
  // Set canvas.dataset.tps from your stream, or call canvas.token() per token.
  const canvas = document.getElementById("shader-liquid-chrome");
  const gl = canvas.getContext("webgl2", { alpha: false, antialias: false });
  const fragment = `#version 300 es
precision highp float;
uniform vec3 iResolution;
uniform float iTime;
uniform float uTokens;
uniform float uTps;
uniform vec3 uColor;
out vec4 outColor;
// Gradient noise on a lattice that repeats every PER cells. Moving offsets are
// wrapped to whole periods, so the motion loops without a seam.
const float PER = 32.0;
// Octave turn and scale: an integer matrix keeps the lattice periodic.
const mat2 OCT = mat2(2.0, -1.0, 1.0, 2.0);

vec2 grad(vec2 i) {
  i = mod(i, PER);
  vec3 q = fract(vec3(i.xyx) * vec3(0.1031, 0.1030, 0.0973));
  q += dot(q, q.yzx + 33.33);
  return fract((q.xx + q.yz) * q.zy) * 2.0 - 1.0;
}

float noise(vec2 p) {
  vec2 i = floor(p), f = fract(p);
  vec2 u = f * f * f * (f * (f * 6.0 - 15.0) + 10.0);
  float a = dot(grad(i), f);
  float b = dot(grad(i + vec2(1.0, 0.0)), f - vec2(1.0, 0.0));
  float c = dot(grad(i + vec2(0.0, 1.0)), f - vec2(0.0, 1.0));
  float d = dot(grad(i + vec2(1.0, 1.0)), f - vec2(1.0, 1.0));
  return mix(mix(a, b, u.x), mix(c, d, u.x), u.y);
}

// A phase that climbs with x but wraps to the noise period.
float wrapP(float x) { return mod(x, PER); }

// Rotate a colour around the grey axis: hue shifts that follow uColor.
vec3 hue(vec3 c, float a) {
  const vec3 k = vec3(0.57735);
  float ca = cos(a);
  return c * ca + cross(k, c) * sin(a) + k * dot(k, c) * (1.0 - ca);
}

float hash12(vec2 p) {
  vec3 q = fract(vec3(p.xyx) * 0.1031);
  q += dot(q, q.yzx + 33.33);
  return fract((q.x + q.y) * q.z);
}

// Soft shoulder tone map plus a one step dither against banding.
vec3 finish(vec3 c, vec2 fc) {
  c = 1.0 - exp(-max(c, 0.0));
  return c + (hash12(fc) - 0.5) / 255.0;
}

// Height of the metal surface: a slow swell warped by a second layer.
float height(vec2 p, vec2 w1, vec2 w2, float e) {
  vec2 wq = vec2(noise(p + w2), noise(p + vec2(3.7, 8.1) - w2.yx));
  vec2 s = p + 0.8 * wq + w1;
  float h = noise(s);
  s = OCT * s + w2;
  h += 0.3 * noise(s);
  s = OCT * s - w1;
  h += (0.03 + 0.09 * e) * noise(s);
  return h;
}

// A dark studio around the pool: a coloured floor rising to a crisp horizon,
// a bright sky band above it and one strip light, all bent by the ripples.
vec3 env(vec3 r) {
  float y = r.y * 0.9 + 0.25 * r.z - 0.26;
  float aa = fwidth(y) + 0.002;
  vec3 gnd = mix(vec3(0.006), uColor * 0.45, smoothstep(-0.7, 0.0, y));
  vec3 sky = mix(mix(uColor, vec3(1.0), 0.6) * 1.3, uColor * 0.1, smoothstep(0.0, 0.55, y));
  sky += vec3(1.4) * smoothstep(0.05, 0.0, abs(y - 0.4));
  vec3 c = mix(gnd, sky, smoothstep(-aa, aa, y));
  c += hue(uColor, 0.8) * smoothstep(0.14, 0.0, abs(r.x - 0.55)) * 0.3;
  return c;
}

void mainImage(out vec4 fragColor, in vec2 fragCoord) {
  vec2 uv = (fragCoord - 0.5 * iResolution.xy) / iResolution.y;
  float e = 1.0 - exp(-uTps / 120.0);
  vec2 w1 = vec2(wrapP(uTokens * 0.0022) + wrapP(iTime * 0.03), -wrapP(uTokens * 0.0015));
  vec2 w2 = vec2(-wrapP(uTokens * 0.0031) - wrapP(iTime * 0.02), wrapP(uTokens * 0.0026));

  vec2 p = uv * vec2(1.0, 1.25);
  float eps = 1.0 / iResolution.y;
  float h0 = height(p, w1, w2, e);
  float hx = height(p + vec2(eps, 0.0), w1, w2, e);
  float hy = height(p + vec2(0.0, eps), w1, w2, e);
  float bump = 0.65 + 0.35 * e;
  vec3 n = normalize(vec3(-(hx - h0) / eps * bump, -(hy - h0) / eps * bump, 1.0));

  vec3 v = normalize(vec3(uv * 0.35, -1.0));
  vec3 r = reflect(v, n);
  float fres = pow(1.0 - max(dot(-v, n), 0.0), 3.0);
  vec3 metal = mix(vec3(0.7), mix(uColor, vec3(1.0), 0.4), 0.5);
  vec3 col = env(r) * mix(metal, vec3(1.0), fres) * (0.8 + 0.4 * e);
  // a little of the light's colour pooled in the hollows
  col += uColor * smoothstep(0.1, -0.5, h0) * 0.05;
  float vig = 1.0 - 0.35 * dot(uv, uv);
  fragColor = vec4(finish(col * vig, fragCoord), 1.0);
}

void main() {
  mainImage(outColor, gl_FragCoord.xy);
  outColor.a = 1.0;
}
`;
  const vertex = `#version 300 es
void main() {
  vec2 p = vec2((gl_VertexID << 1) & 2, gl_VertexID & 2);
  gl_Position = vec4(p * 2.0 - 1.0, 0.0, 1.0);
}
`;
  const compile = (type, src) => {
    const s = gl.createShader(type);
    gl.shaderSource(s, src);
    gl.compileShader(s);
    if (!gl.getShaderParameter(s, gl.COMPILE_STATUS)) throw new Error(gl.getShaderInfoLog(s));
    return s;
  };
  const program = gl.createProgram();
  gl.attachShader(program, compile(gl.VERTEX_SHADER, vertex));
  gl.attachShader(program, compile(gl.FRAGMENT_SHADER, fragment));
  gl.linkProgram(program);
  gl.useProgram(program);
  const u = (n) => gl.getUniformLocation(program, n);
  const [res, time, tokens, rate, color] = ["iResolution", "iTime", "uTokens", "uTps", "uColor"].map(u);
  const hex = parseInt((canvas.dataset.color || "#7c5cff").slice(1), 16);
  gl.uniform3f(color, ((hex >> 16) & 255) / 255, ((hex >> 8) & 255) / 255, (hex & 255) / 255);

  // canvas.token(): count real tokens and derive the rate from the last second.
  const stamps = [];
  canvas.token = () => {
    stamps.push(performance.now());
    canvas.dataset.tps = "auto";
  };
  const still = matchMedia("(prefers-reduced-motion: reduce)").matches;
  let count = 0, last = performance.now(), visible = true, frame = 0;
  new IntersectionObserver(([e]) => {
    visible = e.isIntersecting;
    if (visible && !frame) frame = requestAnimationFrame(draw);
  }).observe(canvas);

  function draw(now) {
    frame = 0;
    const dt = Math.min((now - last) / 1000, 0.1);
    last = now;
    while (stamps.length && now - stamps[0] > 1000) stamps.shift();
    const wobble = 1 + 0.25 * Math.sin(now / 588) + 0.15 * Math.sin(now / 233 + 1) + 0.08 * Math.sin(now / 91 + 2);
    const tps = canvas.dataset.tps === "auto" ? stamps.length : Number(canvas.dataset.tps) * wobble;
    count += tps * dt;
    const dpr = Math.min(devicePixelRatio || 1, 2);
    const w = Math.round(canvas.clientWidth * dpr), h = Math.round(canvas.clientHeight * dpr);
    if (canvas.width !== w || canvas.height !== h) { canvas.width = w; canvas.height = h; }
    gl.viewport(0, 0, w, h);
    gl.uniform3f(res, w, h, 1);
    gl.uniform1f(time, still ? 2 : now / 1000);
    gl.uniform1f(tokens, still ? Number(canvas.dataset.tps) * 2 : count);
    gl.uniform1f(rate, tps);
    gl.drawArrays(gl.TRIANGLES, 0, 3);
    if (visible && !still) frame = requestAnimationFrame(draw);
  }
  frame = requestAnimationFrame(draw);
</script>

// Inputs the site passes in, as constants for Shadertoy.
// uTps: tokens per second. uTokens: tokens so far. uColor: the accent.
#define uTps 75.0
#define uTokens (iTime * uTps)
#define uColor vec3(0.561, 0.827, 1.000)

// Gradient noise on a lattice that repeats every PER cells. Moving offsets are
// wrapped to whole periods, so the motion loops without a seam.
const float PER = 32.0;
// Octave turn and scale: an integer matrix keeps the lattice periodic.
const mat2 OCT = mat2(2.0, -1.0, 1.0, 2.0);

vec2 grad(vec2 i) {
  i = mod(i, PER);
  vec3 q = fract(vec3(i.xyx) * vec3(0.1031, 0.1030, 0.0973));
  q += dot(q, q.yzx + 33.33);
  return fract((q.xx + q.yz) * q.zy) * 2.0 - 1.0;
}

float noise(vec2 p) {
  vec2 i = floor(p), f = fract(p);
  vec2 u = f * f * f * (f * (f * 6.0 - 15.0) + 10.0);
  float a = dot(grad(i), f);
  float b = dot(grad(i + vec2(1.0, 0.0)), f - vec2(1.0, 0.0));
  float c = dot(grad(i + vec2(0.0, 1.0)), f - vec2(0.0, 1.0));
  float d = dot(grad(i + vec2(1.0, 1.0)), f - vec2(1.0, 1.0));
  return mix(mix(a, b, u.x), mix(c, d, u.x), u.y);
}

// A phase that climbs with x but wraps to the noise period.
float wrapP(float x) { return mod(x, PER); }

// Rotate a colour around the grey axis: hue shifts that follow uColor.
vec3 hue(vec3 c, float a) {
  const vec3 k = vec3(0.57735);
  float ca = cos(a);
  return c * ca + cross(k, c) * sin(a) + k * dot(k, c) * (1.0 - ca);
}

float hash12(vec2 p) {
  vec3 q = fract(vec3(p.xyx) * 0.1031);
  q += dot(q, q.yzx + 33.33);
  return fract((q.x + q.y) * q.z);
}

// Soft shoulder tone map plus a one step dither against banding.
vec3 finish(vec3 c, vec2 fc) {
  c = 1.0 - exp(-max(c, 0.0));
  return c + (hash12(fc) - 0.5) / 255.0;
}

// Height of the metal surface: a slow swell warped by a second layer.
float height(vec2 p, vec2 w1, vec2 w2, float e) {
  vec2 wq = vec2(noise(p + w2), noise(p + vec2(3.7, 8.1) - w2.yx));
  vec2 s = p + 0.8 * wq + w1;
  float h = noise(s);
  s = OCT * s + w2;
  h += 0.3 * noise(s);
  s = OCT * s - w1;
  h += (0.03 + 0.09 * e) * noise(s);
  return h;
}

// A dark studio around the pool: a coloured floor rising to a crisp horizon,
// a bright sky band above it and one strip light, all bent by the ripples.
vec3 env(vec3 r) {
  float y = r.y * 0.9 + 0.25 * r.z - 0.26;
  float aa = fwidth(y) + 0.002;
  vec3 gnd = mix(vec3(0.006), uColor * 0.45, smoothstep(-0.7, 0.0, y));
  vec3 sky = mix(mix(uColor, vec3(1.0), 0.6) * 1.3, uColor * 0.1, smoothstep(0.0, 0.55, y));
  sky += vec3(1.4) * smoothstep(0.05, 0.0, abs(y - 0.4));
  vec3 c = mix(gnd, sky, smoothstep(-aa, aa, y));
  c += hue(uColor, 0.8) * smoothstep(0.14, 0.0, abs(r.x - 0.55)) * 0.3;
  return c;
}

void mainImage(out vec4 fragColor, in vec2 fragCoord) {
  vec2 uv = (fragCoord - 0.5 * iResolution.xy) / iResolution.y;
  float e = 1.0 - exp(-uTps / 120.0);
  vec2 w1 = vec2(wrapP(uTokens * 0.0022) + wrapP(iTime * 0.03), -wrapP(uTokens * 0.0015));
  vec2 w2 = vec2(-wrapP(uTokens * 0.0031) - wrapP(iTime * 0.02), wrapP(uTokens * 0.0026));

  vec2 p = uv * vec2(1.0, 1.25);
  float eps = 1.0 / iResolution.y;
  float h0 = height(p, w1, w2, e);
  float hx = height(p + vec2(eps, 0.0), w1, w2, e);
  float hy = height(p + vec2(0.0, eps), w1, w2, e);
  float bump = 0.65 + 0.35 * e;
  vec3 n = normalize(vec3(-(hx - h0) / eps * bump, -(hy - h0) / eps * bump, 1.0));

  vec3 v = normalize(vec3(uv * 0.35, -1.0));
  vec3 r = reflect(v, n);
  float fres = pow(1.0 - max(dot(-v, n), 0.0), 3.0);
  vec3 metal = mix(vec3(0.7), mix(uColor, vec3(1.0), 0.4), 0.5);
  vec3 col = env(r) * mix(metal, vec3(1.0), fres) * (0.8 + 0.4 * e);
  // a little of the light's colour pooled in the hollows
  col += uColor * smoothstep(0.1, -0.5, h0) * 0.05;
  float vig = 1.0 - 0.35 * dot(uv, uv);
  fragColor = vec4(finish(col * vig, fragCoord), 1.0);
}

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