Install
That writes one file:compositions/code-3d-extrude.html.
Source
code-3d-extrude.html
code-3d-extrude.html
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=1920, height=1080" />
<title>Code 3D Extrude</title>
<script src="https://cdn.jsdelivr.net/npm/gsap@3.14.2/dist/gsap.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/three@0.147.0/build/three.min.js"></script>
<style>
* {
margin: 0;
padding: 0;
box-sizing: border-box;
}
html,
body {
width: 1920px;
height: 1080px;
overflow: hidden;
background: #05070b;
}
#root {
position: relative;
width: 1920px;
height: 1080px;
}
#gl {
position: absolute;
inset: 0;
width: 1920px;
height: 1080px;
display: block;
}
</style>
</head>
<body>
<div
id="root"
data-composition-id="code-3d-extrude"
data-start="0"
data-duration="8"
data-width="1920"
data-height="1080"
>
<canvas id="gl" width="1920" height="1080"></canvas>
</div>
<script>
window.__TOKENS = {
feature: {
lang: "js",
theme: "github-dark",
bg: "#24292e",
fg: "#e1e4e8",
states: [
{
code: 'async function loadConfig(path) {\n const raw = await readFile(path, "utf8")\n const config = JSON.parse(raw)\n return validate(config)\n}',
tokens: [
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-0",
content: "async",
color: "#F97583",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-1",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-2",
content: "function",
color: "#F97583",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-3",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-4",
content: "loadConfig",
color: "#B392F0",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-5",
content: "(",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-6",
content: "path",
color: "#FFAB70",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-7",
content: ") {",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-8",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-9",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-10",
content: "const",
color: "#F97583",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-11",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-12",
content: "raw",
color: "#79B8FF",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-13",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-14",
content: "=",
color: "#F97583",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-15",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-16",
content: "await",
color: "#F97583",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-17",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-18",
content: "readFile",
color: "#B392F0",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-19",
content: "(path,",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-20",
content: " ",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-21",
content: '"utf8"',
color: "#9ECBFF",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-22",
content: ")",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-23",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-24",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-25",
content: "const",
color: "#F97583",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-26",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-27",
content: "config",
color: "#79B8FF",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-28",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-29",
content: "=",
color: "#F97583",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-30",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-31",
content: "JSON",
color: "#79B8FF",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-32",
content: ".",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-33",
content: "parse",
color: "#B392F0",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-34",
content: "(raw)",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-35",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-36",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-37",
content: "return",
color: "#F97583",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-38",
content: " ",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-39",
content: "validate",
color: "#B392F0",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-40",
content: "(config)",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-41",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-42",
content: "}",
color: "#E1E4E8",
fontStyle: 0,
},
{
key: "SPx9u4TyzfMqSHpbjPHnWFQU8lPVEPieF6W5Vtu-bNA-43",
content: "\n",
color: "#e1e4e8",
fontStyle: 0,
},
],
},
],
},
};
window.__BLOCK = {
id: "code-3d-extrude",
effect: "extrude",
seq: "feature",
duration: 8,
seed: 7,
};
</script>
<script>
// hf-code-anim-gl.js — WebGL code-animation engine for the "crazy" Code Animations blocks.
//
// Bridges the baked Shiki tokens (window.__TOKENS) into Three.js: the tokens are drawn once
// to an offscreen 2D canvas (a CanvasTexture), which then drives a lit 3D slab, a dissolve
// shader, or a GPU particle system. Determinism per the project contract:
// - render only via tl.eventCallback("onUpdate", …) + one initial render() — never rAF
// - all randomness from a seeded mulberry32 — never Math.random / Date.now
// - canvas drawn once after document.fonts.ready (final glyph metrics)
// - paused GSAP timeline registered on window.__timelines[id]; HF seeks it per frame
//
// Each block sets window.__BLOCK = { id, effect, seq, duration, seed } and includes this engine.
(function () {
"use strict";
var T = window.__TOKENS || {};
// ---- seeded PRNG (no Math.random) -----------------------------------------
function mulberry32(a) {
return function () {
a |= 0;
a = (a + 0x6d2b79f5) | 0;
var t = Math.imul(a ^ (a >>> 15), 1 | a);
t = (t + Math.imul(t ^ (t >>> 7), 61 | t)) ^ t;
return ((t ^ (t >>> 14)) >>> 0) / 4294967296;
};
}
// ---- split a token state into lines of {content,color} --------------------
function splitLines(state) {
var lines = [[]];
for (var i = 0; i < state.tokens.length; i++) {
var t = state.tokens[i];
if (t.content === "\n") {
lines.push([]);
continue;
}
lines[lines.length - 1].push(t);
}
while (lines.length && lines[lines.length - 1].length === 0) lines.pop();
return lines;
}
// ---- THE BRIDGE: draw baked tokens to an offscreen 2D canvas ---------------
// Returns { canvas, W, H, lines, lineH, padY, fontPx } so effects can sample it.
function drawCodeToCanvas(state, opts) {
opts = opts || {};
var fontPx = opts.fontPx || 36;
var lineH = opts.lineH || 54;
var padX = opts.padX || 70;
var padY = opts.padY || 60;
var weight = opts.weight || 500;
var font = weight + " " + fontPx + 'px "JetBrains Mono", monospace';
var lines = splitLines(state);
var measure = document.createElement("canvas").getContext("2d");
measure.font = font;
var maxW = 0;
for (var i = 0; i < lines.length; i++) {
var w = 0;
for (var j = 0; j < lines[i].length; j++)
w += measure.measureText(lines[i][j].content).width;
if (w > maxW) maxW = w;
}
var W = Math.max(2, Math.ceil(maxW + padX * 2));
var H = Math.max(2, Math.ceil(lines.length * lineH + padY * 2));
var canvas = document.createElement("canvas");
canvas.width = W;
canvas.height = H;
var ctx = canvas.getContext("2d");
if (opts.transparent) {
ctx.clearRect(0, 0, W, H);
} else {
ctx.fillStyle = opts.bg || "#0b0f17";
ctx.fillRect(0, 0, W, H);
}
ctx.textBaseline = "top";
ctx.font = font;
for (var li = 0; li < lines.length; li++) {
var x = padX;
var y = padY + li * lineH;
for (var k = 0; k < lines[li].length; k++) {
var tok = lines[li][k];
ctx.fillStyle = tok.color;
ctx.fillText(tok.content, x, y);
x += ctx.measureText(tok.content).width;
}
}
return {
canvas: canvas,
W: W,
H: H,
lines: lines.length,
lineH: lineH,
padY: padY,
fontPx: fontPx,
};
}
function fxExtrude(THREE, scene, camera, renderer, state, st, tl, dur) {
scene.background = new THREE.Color(0x05070b);
var code = drawCodeToCanvas(state, {
fontPx: 38,
lineH: 56,
padX: 80,
padY: 70,
weight: 600,
});
var tex = new THREE.CanvasTexture(code.canvas);
tex.minFilter = THREE.LinearFilter;
tex.magFilter = THREE.LinearFilter;
tex.generateMipmaps = false;
var aspect = code.W / code.H;
var slabH = 6.2;
var slabW = slabH * aspect;
var depth = 0.5;
// beveled slab: rounded extruded rectangle
var hw = slabW / 2;
var hh = slabH / 2;
var r = 0.18;
var shape = new THREE.Shape();
shape.moveTo(-hw + r, -hh);
shape.lineTo(hw - r, -hh);
shape.quadraticCurveTo(hw, -hh, hw, -hh + r);
shape.lineTo(hw, hh - r);
shape.quadraticCurveTo(hw, hh, hw - r, hh);
shape.lineTo(-hw + r, hh);
shape.quadraticCurveTo(-hw, hh, -hw, hh - r);
shape.lineTo(-hw, -hh + r);
shape.quadraticCurveTo(-hw, -hh, -hw + r, -hh);
var geo = new THREE.ExtrudeGeometry(shape, {
depth: depth,
bevelEnabled: true,
bevelThickness: 0.12,
bevelSize: 0.1,
bevelSegments: 3,
steps: 1,
});
geo.center();
// UVs from ExtrudeGeometry don't map the texture nicely to the face; remap front-face UVs from XY bounds.
geo.computeBoundingBox();
var bb = geo.boundingBox;
var sizeX = bb.max.x - bb.min.x;
var sizeY = bb.max.y - bb.min.y;
var pos = geo.attributes.position;
var uv = geo.attributes.uv;
for (var vi = 0; vi < pos.count; vi++) {
uv.setXY(vi, (pos.getX(vi) - bb.min.x) / sizeX, (pos.getY(vi) - bb.min.y) / sizeY);
}
uv.needsUpdate = true;
// Face is an unlit "screen" — shows the exact vivid Shiki colors (no PBR/emissive wash).
// The 3D read comes from the lit, beveled EDGES + perspective, like a glowing monitor.
var faceMat = new THREE.MeshBasicMaterial({ map: tex });
var edgeMat = new THREE.MeshStandardMaterial({
color: 0x141d2b,
roughness: 0.3,
metalness: 0.4,
});
// ExtrudeGeometry groups: 0 = front+back faces, 1 = sides. Front shows the code.
var slab = new THREE.Mesh(geo, [faceMat, edgeMat]);
scene.add(slab);
scene.add(new THREE.AmbientLight(0xffffff, 0.5));
var key = new THREE.DirectionalLight(0xbcd4ff, 1.25);
key.position.set(5, 7, 9);
scene.add(key);
var rim = new THREE.DirectionalLight(0x4fffa0, 0.45);
rim.position.set(-7, -3, 5);
scene.add(rim);
camera.position.set(0, 0, 10);
// fit camera distance so the WHOLE slab fits (width-limited for wide code), ~78% fill
var vfov = (camera.fov * Math.PI) / 180;
var screenAspect = 1920 / 1080;
var fitH = slabH / 2 / Math.tan(vfov / 2) / 0.78;
var fitW = slabW / 2 / (Math.tan(vfov / 2) * screenAspect) / 0.78;
var fitZ = Math.max(fitH, fitW);
st.rotY = -1.0;
st.rotX = 0.4;
st.camZ = fitZ + 6;
tl.to(st, { rotY: 0, rotX: 0, camZ: fitZ, duration: dur * 0.6, ease: "power3.out" }, 0);
// gentle breathing drift at rest (subtle — stays readable)
tl.to(
st,
{ rotY: 0.06, rotX: -0.02, duration: dur * 0.4, ease: "sine.inOut" },
dur * 0.6,
);
return function () {
slab.rotation.y = st.rotY;
slab.rotation.x = st.rotX;
camera.position.z = st.camZ;
camera.lookAt(0, 0, 0);
// boot loop's render() issues the single renderer.render() — don't double-render here
};
}
// ---- dispatch + boot ------------------------------------------------------
function buildEffect(THREE, scene, camera, renderer, spec, st, tl) {
var state = T[spec.seq].states[0];
var dur = spec.duration;
if (spec.effect === "extrude")
return fxExtrude(THREE, scene, camera, renderer, state, st, tl, dur);
return function () {};
}
// Free GPU resources (renderer, geometries, materials, textures) on page teardown.
// One-shot renders exit per job so nothing leaks there; this guards long-lived
// Studio/player sessions that reload. Fires only on unload — never during capture.
function disposeGL(renderer, scene) {
scene.traverse(function (o) {
if (o.geometry && o.geometry.dispose) o.geometry.dispose();
var mats = o.material ? (Array.isArray(o.material) ? o.material : [o.material]) : [];
mats.forEach(function (m) {
if (m.map && m.map.dispose) m.map.dispose();
if (
m.uniforms &&
m.uniforms.uTex &&
m.uniforms.uTex.value &&
m.uniforms.uTex.value.dispose
) {
m.uniforms.uTex.value.dispose();
}
if (m.dispose) m.dispose();
});
});
if (renderer.dispose) renderer.dispose();
}
function go() {
var spec = window.__BLOCK;
var root = document.getElementById("root");
var glcanvas = document.getElementById("gl");
var W = 1920;
var H = 1080;
window.__timelines = window.__timelines || {};
var tl = gsap.timeline({ paused: true });
window.__timelines[spec.id] = tl; // register synchronously
var THREE = window.THREE;
var renderer = new THREE.WebGLRenderer({
canvas: glcanvas,
antialias: true,
alpha: false,
preserveDrawingBuffer: true,
});
renderer.setPixelRatio(1);
renderer.setSize(W, H, false);
var scene = new THREE.Scene();
var camera = new THREE.PerspectiveCamera(45, W / H, 0.1, 200);
var st = {};
document.fonts.ready.then(function () {
var renderFn = buildEffect(THREE, scene, camera, renderer, spec, st, tl);
function render() {
renderFn();
renderer.render(scene, camera);
}
tl.eventCallback("onUpdate", render);
var dur = parseFloat(root.dataset.duration) || tl.duration();
tl.to({}, { duration: dur }, 0); // pad to full composition length
render(); // paint frame 0
window.addEventListener("beforeunload", function () {
disposeGL(renderer, scene);
});
});
}
if (document.readyState === "loading") document.addEventListener("DOMContentLoaded", go);
else go();
})();
</script>
</body>
</html>
Usage
After installing, add the block to your host composition:<div data-composition-id="code-3d-extrude" data-composition-src="compositions/code-3d-extrude.html" data-start="0" data-duration="8" data-track-index="1" data-width="1920" data-height="1080"></div>
code code-animation 3d webgl developer.