Lorenz attractor · grok-4.6
Using the pre-provided three.min.js (global THREE), visualize the Lorenz attractor as a glowing 3D butterfly trajectory that draws over time, with orbit-drag camera controls.
transcript · 14 messages
Using the pre-provided three.min.js (global THREE), visualize the Lorenz attractor as a glowing 3D butterfly trajectory that draws over time, with orbit-drag camera controls.
thinking
The user wants me to build a single-page web app visualizing the Lorenz attractor using Three.js. Let me first check what's in the current directory and understand the three.min.js file available.
I'll inspect the workspace and how `three.min.js` is exposed so I can build a self-contained Lorenz attractor visualization.
{"command":"ls -la /tmp/ws && head -c 200 three.min.js && echo && wc -c three.min.js"}total 592 drwxr-sr-x. 2 node node 26 Aug 13 01:27 . drwxrwsrwx. 3 root node 16 Aug 13 01:27 .. -rw-r--r--. 1 node node 603445 Aug 13 01:27 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&&de 603445 three.min.js
thinking
This is Three.js r132 or similar from 2021. I need to check if OrbitControls is included in three.min.js. Typically OrbitControls is a separate addon, not in the core three.min.js.
{"command":"rg -o \"REVISION=\\\"[^\\\"]+\\\"\" three.min.js | head -5; rg -c \"OrbitControls\" three.min.js; rg -o \"THREE\\.[A-Za-z]+\" thTHREE.AnimationClip THREE.AnimationObjectGroup THREE.Audio THREE.AudioAnalyser THREE.AudioLoader THREE.AxesHelper THREE.AxisHelper THREE.BinaryTextureLoader THREE.BoundingBoxHelper THREE.Box THREE.BoxHelper THREE.BufferAttribute THREE.BufferGeometry THREE.Camera THREE.CameraHelper THREE.CanvasRenderer THREE.ClampToEdgeWrapping THREE.Color THREE.CubeCamera THREE.CubeTextureLoader THREE.Curve THREE.DDSLoader THREE.DataTexture THREE.DataTextureLoader THREE.DepthFormat THREE.DepthStencilFormat THREE.DepthTexture THREE.DynamicBufferAttribute THREE.DynamicDrawUsage THREE.EdgesGeometry THREE.EdgesHelper THREE.Euler THREE.ExtrudeBufferGeometry THREE.ExtrudeGeometry THREE.FileLoader THREE.Float THREE.Font THREE.FontLoader THREE.Frustum THREE.Geometry THREE.GridHelper THREE.ImageBitmapLoader THREE.ImageUtils THREE.InstancedBufferAttribute THREE.InstancedBufferGeometry THREE.Int THREE.InterleavedBuffer THREE.InterleavedBufferAttribute THREE.JSONLoader THREE.KeyframeTrack THREE.LensFlare THREE.Light THREE.Line THREE.LineSegments THREE.LinearFilter THREE.Loader THREE.LoaderUtils THREE.Material THREE.MaterialLoader THREE.MathUtils THREE.Matrix THREE.Mesh THREE.MeshFaceMaterial THREE.MultiMaterial THREE.NearestFilter THREE.Object THREE.ObjectLoader THREE.ParametricGeometry THREE.Particle THREE.ParticleBasicMaterial THREE.ParticleSystem THREE.ParticleSystemMaterial THREE.Path THREE.PerspectiveCamera THREE.Plane THREE.PointCloud THREE.PointCloudMaterial THREE.Points THREE.PointsMaterial THREE.PropertyBinding
thinking
This is an older version of Three.js (2010-2021). I need to implement OrbitControls myself since it's not included. Let me check the THREE version more carefully and what APIs are available.
{"command":"rg -o \"REVISION:?\\\"?[0-9.]+\" three.min.js | head; rg -o \"THREE\\.REVISION=\\\"[^\\\"]+\\\"\" three.min.js; python3 -c \"\ni/bin/bash: line 1: python3: command not found Command exited with code 127
thinking
Python3 not found, let me try node instead.
{"command":"node -e \"\nconst s=require('fs').readFileSync('three.min.js','utf8');\nconst m=s.match(/REVISION=\\\"([^\\\"]+)\\\"/);\nconsoleREVISION null WebGLRenderer true Scene true PerspectiveCamera true BufferGeometry true Float32BufferAttribute true Line true LineBasicMaterial true AdditiveBlending true Color true Vector3 true CatmullRomCurve3 true TubeGeometry true TubeBufferGeometry true Points true PointsMaterial true Fog true AmbientLight true PointLight true MeshBasicMaterial true MeshPhongMaterial true SphereGeometry true SphereBufferGeometry true OrbitControls false Clock true Line2 false LineGeometry false ShaderMaterial true AdditiveBlending true NoBlending true NormalBlending true FogExp2 true IcosahedronGeometry true MeshStandardMaterial true ColorManagement false
thinking
OrbitControls is not included in three.min.js, so I need to implement my own orbit-drag camera controls. That's fine.
OrbitControls isn’t in the bundled Three.js, so I’ll implement drag/zoom myself and write a self-contained Lorenz visualization.
/tmp/ws/index.html (12064 bytes)Successfully wrote 12064 bytes to /tmp/ws/index.html
thinking
Let me check if THREE.MathUtils exists in this version of three.js, and also SphereBufferGeometry, FogExp2, etc. I already checked some of these. MathUtils might be THREE.Math in older versions.
{"command":"node -e \"\nconst s=require('fs').readFileSync('three.min.js','utf8');\nfor (const name of ['MathUtils','THREE.Math','clamp','SpMathUtils true THREE.Math true clamp true SphereBufferGeometry true FogExp2 true setDrawRange true vertexColors true Spherical true rev search null exports.THREE false window.THREE or global true /** * @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=1
thinking
The THREE revision is 128. MathUtils should exist. vertexColors as boolean is r125+ style. Should be fine.
`index.html` is a self-contained Lorenz attractor scene on the local `three.min.js` build. The butterfly is integrated live with σ=10, ρ=28, β=8/3 and drawn as a glowing additive trail (line + faint points) that cycles cyan → violet → magenta. A bright head traces the newest point. Drag orbits, scroll zooms, shift-drag pans.
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
Glowing Lorenz attractor trajectory draws over time; drag rotates and wheel zooms the camera nicely, keys 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.