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Rotating icosahedron · mercury-3

Output generated Cost / run $0.0043 Runtime 23.8s

Prompt for this run

Build a full-screen 3D scene featuring a rotating icosahedron using the provided Three.js library. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. Use the provided `three.min.js` (global `THREE`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - Show an icosahedron centered in view, with a material that visibly responds to two point lights of different colors. - Rotate the object continuously about at least two axes. Independently move the camera slowly around the object while keeping it in view. - Add a subtle procedural starfield behind the object. Keep lights, object, and stars distinguishable without external textures. - Provide Pause/Resume and Reset. Pause freezes both object and camera animation; Reset restores their initial transforms. - Resize the renderer and camera aspect ratio to the viewport. Use only the provided core global THREE library, without additional controls or postprocessing addons. Verify: Sample several moments to inspect the object orientation, camera movement, and colored lighting. Pause and check that both motions freeze, then reset and compare the object and camera with their initial poses.

⛨ sandboxed Open in new tab ↗

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

modelmercury-3
vendorInception
harnesspi 0.87.1 · browser iteration
generated2026-10-23

METRICS

runtime23.8s
tokens in67k
tokens out7.4k
cached56k
cost / run$0.0043
Transcript · 19 messages
system

user

Build a full-screen 3D scene featuring a rotating icosahedron using the provided Three.js library. Use HTML, CSS, and JavaScript as needed. Write it to `index.html` in the current working directory using your file tools. Inline your own CSS and JavaScript. Do not use external assets, CDNs, or network requests. Use the provided `three.min.js` (global `THREE`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - Show an icosahedron centered in view, with a material that visibly responds to two point lights of different colors. - Rotate the object continuously about at least two axes. Independently move the camera slowly around the object while keeping it in view. - Add a subtle procedural starfield behind the object. Keep lights, object, and stars distinguishable without external textures. - Provide Pause/Resume and Reset. Pause freezes both object and camera animation; Reset restores their initial transforms. - Resize the renderer and camera aspect ratio to the viewport. Use only the provided core global THREE library, without additional controls or postprocessing addons. Verify: Sample several moments to inspect the object orientation, camera movement, and colored lighting. Pause and check that both motions freeze, then reset and compare the object and camera with their initial poses.

assistant
→ bash {"command":"ls -la /tmp/job-VWo4Qt && head -c 500 /tmp/job-VWo4Qt/three.min.js 2>/dev/null; echo; wc -c /tmp/job-VWo4Qt/three.min.js 2>/dev/
toolResult

total 604 drwx------ 3 node node 4096 Oct 23 09:58 . drwxrwxrwt 8 root root 4096 Oct 23 09:58 .. drwxr-xr-x 3 node node 4096 Oct 23 09:58 .home -rw-r--r-- 1 node node 603445 Oct 23 09:58 three.min.js /** * @license * Copyright 2010-2021 Three.js Authors * SPDX-License-Identifier: MIT */ !function(t,e){"object"==typeof exports&&"undefined"!=typeof module?e(exports):"function"==typeof define&&define.amd?define(["exports"],e):e((t="undefined"!=typeof globalThis?globalThis:t||self).THREE={})}(this,(function(t){"use strict";const e="128",n=100,i=300,r=301,s=302,a=303,o=304,l=306,c=307,h=1e3,u=1001,d=1002,p=1003,m=1004,f=1005,g=1006,v=1007,y=1008,x=1009,_=1012,w=1014,b=1015,M=1016,S=1020,T=102 603445 /tmp/job-VWo4Qt/three.min.js

assistant

The `three.min.js` file is present (it's THREE r128 from the `"128"` constant). Let me write the single-file app.

→ write /tmp/job-VWo4Qt/index.html (7569 bytes)
toolResult

Successfully wrote to /tmp/job-VWo4Qt/index.html

assistant
→ browser {"action":"reload"}
toolResult

{"console":["warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels","warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels","warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels","warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels (this message will no longer repeat)"],"dom":"Pause\nReset","images":"model does not support images"}

assistant
→ browser {"action":"screenshot"}
toolResult

{"console":["warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels","warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels","warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels","warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels (this message will no longer repeat)"],"dom":"Pause\nReset","images":"model does not support images"}

assistant

The browser environment doesn't return images to me, so I'll verify behavior through DOM inspection plus a faithful Node simulation of the page's animation logic using the same `three.min.js`.

→ bash {"command":"cd /tmp/job-VWo4Qt && cat > /tmp/verify.js <<'EOF'\n// Faithful reproduction of the animation logic in index.html\nconst THREE =
toolResult

node:internal/modules/cjs/loader:1520 throw err; ^ Error: Cannot find module './three.min.js' Require stack: - /tmp/verify.js at Module._resolveFilename (node:internal/modules/cjs/loader:1517:15) at wrapResolveFilename (node:internal/modules/cjs/loader:1071:27) at defaultResolveImplForCJSLoading (node:internal/modules/cjs/loader:1095:10) at resolveForCJSWithHooks (node:internal/modules/cjs/loader:1122:12) at Module._load (node:internal/modules/cjs/loader:1294:5) at wrapModuleLoad (node:internal/modules/cjs/loader:255:19) at Module.require (node:internal/modules/cjs/loader:1617:12) at require (node:internal/modules/helpers:153:16) at Object.<anonymous> (/tmp/verify.js:2:15) at Module._compile (node:internal/modules/cjs/loader:1871:14) { code: 'MODULE_NOT_FOUND', requireStack: [ '/tmp/verify.js' ] } Node.js v24.18.0 Command exited with code 1

assistant
→ bash {"command":"cd /tmp/job-VWo4Qt && sed -i \"s#require('./three.min.js')#require('/tmp/job-VWo4Qt/three.min.js')#\" /tmp/verify.js && node /tm
toolResult

after 5s unpaused: rot = 2.750 4.250 1.100 camAzimuth = 0.800 pitch = 0.359 camPos = 3.653 1.968 3.761 initialCam = 5.426 1.385 0.000 camera moved: true object rotated: true after pause 2s: rot unchanged: true camera unchanged: true reset: rot restored: true camera restored: true

assistant
→ browser {"action":"click","x":70,"y":35}
toolResult

{"console":["warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels","warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels","warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels","warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels (this message will no longer repeat)"],"dom":"Resume\nReset","images":"model does not support images"}

assistant
→ browser {"action":"click","x":70,"y":35}
toolResult

{"console":["warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels","warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels","warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels","warning: [.WebGL-0x1c4400179e00]GL Driver Message (OpenGL, Performance, GL_CLOSE_PATH_NV, High): GPU stall due to ReadPixels (this message will no longer repeat)"],"dom":"Pause\nReset","images":"model does not support images"}

assistant

Done. Final artifact is at `/tmp/job-VWo4Qt/index.html` (single self-contained file, loads `three.min.js` via plain local script tag, no external resources). **What I built** - Full-screen WebGL scene (`THREE.WebGLRenderer`, `PerspectiveCamera`) with an `IcosahedronGeometry(1.35, 0)` + `MeshStandardMaterial` (flat-shaded, light gray). - Two colored point lights — red-orange `0xff5533` and blue `0x33aaff` — placed on opposite sides, plus a faint ambient fill. - Procedural starfield: 900 points on a uniform sphere at radius 35–80 with per-point brightness/tint vertex colors (`PointsMaterial`, `vertexColors: true`). - Animation: object continuously rotates about X, Y, and Z (accumulated state); camera orbits the origin (slow azimuth drift + gentle sinusoidal elevation bob), always looking at the object. - Controls: **Pause/Resume** toggles a flag that stops all state updates; **Reset** restores initial object rotation and initial camera orbit parameters. - Resize handler updates renderer size and camera aspect ratio. **What I verified** - Page loads with no JS errors (console shows only harmless WebGL driver performance warnings). - Clicked Pause → label flips to "Resume"; clicked again → back to "Pause". - Ran a faithful Node reproduction of the exact animation logic (using the provided `three.min.js`) and confirmed: after 5s unpaused both object rotation and camera position advance; while paused both pose states stay byte-identical across frames; reset restores object and camera exactly to their initial transforms (rotation 0, camera azimuth 0/pitch 0.25 at radius 5.6). - Code-reviewed resize path and Three r128 API usage (`sRGBEncoding`, `PointLight` decay, `BufferAttribute`). **Unverified / limitations** - Visual rendering could not be inspected: the browser harness reported "model does not support images", so screenshots were unavailable. Color/lighting appearance and starfield aesthetics are unverified visually, though the API usage and scene composition follow standard patterns. - Reset button click was wired and logic verified via the Node harness, but not exercised in the live browser render loop.