3D solar system · grok-build-0.1
Using the pre-provided three.min.js (global THREE), build a 3D solar system with the sun and orbiting planets at varied speeds and sizes, orbit-drag camera controls, and a starfield.
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Using the pre-provided three.min.js (global THREE), build a 3D solar system with the sun and orbiting planets at varied speeds and sizes, orbit-drag camera controls, and a starfield.
thinking
The task is: "Build a single-page web app and write it ALL into one self-contained file named index.html in the current directory: CSS in a <style> tag, JS in a <script> tag, inline — do not create se...
{"command":"ls -la /tmp/ws"}total 592 drwxr-sr-x. 2 node node 26 Aug 1 20:46 . drwxrwsrwx. 3 root node 16 Aug 1 20:46 .. -rw-r--r--. 1 node node 603445 Aug 1 20:46 three.min.js
thinking
The task is to build a single-page web app in one self-contained file named index.html. It should use the pre-provided three.min.js (global THREE). No external resources, CDNs, or network requests. Th...The task is to build a 3D solar system using three.min.js, in a single index.html file. It needs sun, orbiting planets with varied speeds and sizes, orbit-drag camera controls, and a starfield. No external resources.
three.min.js is the global THREE. I need to include it via script or something? No, since it's local, <script src="three.min.js"></script> in index.html.
The file is self-contained, so index.html will have the script tag for three.min.js, style, and script.
I need to implement OrbitControls myself because it's not provided.
Recall how to make simple 3D orbit controls.
Use spherical coordinates for camera position.
Variables: theta (azimuth), phi (polar angle), radius.
Update on mouse drag.
For starfield: use Points with random positions.
Planets: spheres with different params.
Add some lights.
Make it full screen.
Let me sketch the code.
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Solar System</title>
<style>
body { margin: 0; overflow: hidden; background: black; }
#controls { position: absolute; top: 10px; left: 10px; color: white; z-index: 1; }
</style>
</head>
<body>
<div id="controls">
<button id="pause">Pause</button>
<button id="reset">Reset</button>
<label >Speed: <input type="range" id="speed" min="0.1" max="2" value="1"></label>
</div>
<script src="three.min.js"></script>
<script>
// JS code here
const scene = new THREE.Scene();
const camera = new THREE.PerspectiveCamera(60, window.innerWidth / window.innerHeight, 0.1, 500);
const renderer = new THREE.WebGLRenderer({ antialias: true });
renderer.setSize(window.innerWidth, window.innerHeight);
document.body.appendChild(renderer.domElement);
// resize
window.addEventListener('resize', () => {
camera.aspect = window.innerWidth / window.innerHeight;
camera.updateProjectionMatrix();
renderer.setSize(window.innerWidth, window.innerHeight);
});
// lights
const ambientLight = new THREE.AmbientLight(0x 404040);
scene.add(ambientLight);
const sunLight = new THREE.PointLight(0xffff00, 2, 500);
scene.add(sunLight);
// sun
const sunGeo = new THREE.SphereGeometry(5, 32, 32);
const sunMat = new THREE.MeshPhongMaterial({color: 0xffaa00, emissive: 0xff6600, shininess: 50});
const sun = new THREE.Mesh(sunGeo, sunMat);
scene.add(sun);
sunLight.position.set(0,0,0);
// starfield
const starsGeo = new THREE.BufferGeometry();
const starPositions = [];
for (let i = 0; i < 10000; i++) {
const x = (Math.random() - 0.5) * 400;
const y = (Math.random() - 0.5) * 400;
const z = (Math.random() - 0.5) * 400;
starPositions.push(x, y, z);
}
starsGeo.setAttribute('position', new THREE.Float32BufferAttribute(starPositions, 3));
const starsMat = new THREE.PointsMaterial({color: 0xffffff, size: 0.5});
const stars = new THREE.Points(starsGeo, starsMat);
scene.add(stars);
// planets data
const planetData = [
{name: 'Mercury', size: 0.5 , dist: 10, speed: 0.04, color: 0x8c8c8c, rot: 0.02},
{name: 'Venus', size: 0.8, dist: 14, speed: 0.025, color: 0xffc49 9, rot: 0.015},
{name: 'Earth', size: 0.9, dist: 18, speed: 0.02, color: 0x 4b9eff, rot: 0.01},
{name: 'Mars', size: 0 .6, dist: 22, speed: 0.015, color: 0xff4d4d, rot: 0.025},
{name: 'Jupiter', size: 2.0, dist: 30, speed: 0.008, color: 0xd 8a56b, rot: 0.05},
{name: 'Saturn', size: 1.7, dist: 40, speed: 0.006, color: 0xf4e4bc, rot: 0.04},
{name: 'Uranus ', size: 1.3, dist: 50, speed: 0.003, color: 0x4b7 0b8, rot: 0.03},
{name: 'Neptune', size: 1./tmp/ws/index.html (20047 bytes)Successfully wrote 20047 bytes to /tmp/ws/index.html
thinking
The file has been written. Now I should verify it exists and is complete.
{"command":"ls -la /tmp/ws/index.html && wc -c /tmp/ws/index.html"}-rw-r--r--. 1 node node 20057 Aug 1 20:47 /tmp/ws/index.html 20057 /tmp/ws/index.html
thinking
The file is created. It's a single self-contained index.html using three.min.js as instructed. It includes:
{"command":"head -30 /tmp/ws/index.html && echo \"...\" && tail -10 /tmp/ws/index.html"}<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <title>Solar System</title> <style> * { margin: 0; padding: 0; box-sizing: border-box; } body { background: #000; color: #eee; font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; overflow: hidden; } canvas { display: block; } #ui { position: absolute; top: 0; left: 0; right: 0; padding: 16px 20px; display: flex; align-items: center; justify-content: space-between; pointer-events: none; z-index: 10; } .title { pointer-events: auto; background: rgba(0,0,0,0.6); padding: 8px 16px; border-radius: 6px; ... info.classList.add('active'); setTimeout(() => info.classList.remove('active'), 2400); } }, 1200); } start(); </script> </body> </html>
thinking
The file is complete. It uses the local three.min.js via <script src="three.min.js"></script>, everything is self-contained in index.html with inline CSS and JS. No external network resources.
The self-contained single-file 3D solar system is ready: **`/tmp/ws/index.html`** (20 KB, uses the local `three.min.js`) ### Features - **Sun** (bright emissive) with a soft glow - **8 planets** (Mercury → Neptune) with unique radii, orbit distances, and orbital speeds - **Saturn ring** with tilt + faint outer band - **Earth's Moon** that orbits independently - **Starfield** (procedural, subtle rotation) - **Orbit-drag camera**: - Drag to rotate view (mouse + touch) - Scroll wheel to zoom - Double-click or "R" key resets camera - **Simulation controls**: - Pause / Resume button + `Space` key - Speed slider (0×–5×) - Planets self-rotate at different rates - **Click planets** (or tap) to show name/info panel - Fully sandboxed: zero external requests or CDNs Open `index.html` in a browser to run it.
TAKE IT TO CODE
A single self-contained HTML file — copy it and open in any browser, or reuse the prompt with your own pi-agent run.
RUN
EVALUATION
3D solar system with sun, orbiting planets, rings, starfield; drag rotates camera, space pauses; arrows/WASD have no effect.
Vision grade · anthropic/claude-sonnet-5
MEASUREMENTS
Raw readings from the capture, not a verdict — the grade above is the only judgement. Percentages are how much of the screen changed; the measure under-reports sparse motion on a dark background.