Rotating icosahedron · hy3-preview
Using the pre-provided three.min.js (global THREE), render a full-screen scene with a rotating icosahedron lit by two colored point lights, orbit-style auto-rotation, and a subtle starfield background.
transcript · 6 messages
Using the pre-provided three.min.js (global THREE), render a full-screen scene with a rotating icosahedron lit by two colored point lights, orbit-style auto-rotation, and a subtle starfield background.
{"command":"ls /workspace/"}three.min.js
/workspace/index.html (3953 bytes)Successfully wrote 3953 bytes to /workspace/index.html
thinking
The user asked me to build a single-page web app with a rotating icosahedron, two colored point lights, orbit-style auto-rotation, and a starfield background. I've created the index.html file with all the requirements: 1. ✅ Single self-contained file (index.html) with CSS in <style> tag, JS in <script> tag 2. ✅ No external resources - using the provided three.min.js via local script tag 3. ✀ Full-screen scene with rotating icosahedron 4. ✅ Two colored point lights (reddish 0xff4466 and bluish 0x44aaff) 5. ✅ Orbit-style auto-rotation (icosahedron rotates on y axis and gently on x) 6. ✅ Subtle starfield background (2000 points on a sphere) 7. ✅ Camera and renderer setup 8. ✅ Resize handler 9. ✅ Wireframe overlay for visual effect 10. ✅ MeshStandardMaterial with metalness/roughness for PBR look The file is complete and should work when opened in a browser with three.min.js in the same directory. Let me verify the file was created properly
The file has been created at `/workspace/index.html`. Here's what it includes: **Scene setup:** - Full-screen Three.js scene with antialiased WebGL renderer - Auto-resize handling **Icosahedron:** - `IcosahedronGeometry(1.2, 0)` — detailed 20-face polyhedron - `MeshStandardMaterial` with blue color, slight metalness/roughness, and subtle emissive glow - Wireframe overlay for visual depth **Lighting:** - Two colored `PointLight`s: red-pink (`0xff4466`) and blue (`0x44aaff`), each intensity 2 - Both lights gently orbit the icosahedron over time for dynamic coloring - Soft `AmbientLight` fill so backfaces aren't pure black **Starfield:** - 2000 white points randomly distributed on a sphere (radius 50) - `PointsMaterial` with small attenuated size for subtle background depth **Auto-rotation:** - Icosahedron continuously y-rotates (`elapsed * 0.3`) with a gentle x-axis wobble - Creates a smooth "orbit-style" tumble effect Open `index.html` in a browser (with `three.min.js` in the same directory) to see the result.
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
Rotating icosahedron with purple/blue point lights over a starfield, animates continuously; inputs cause minor changes.
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.