Flow-field particles · muse-spark-1.3
Output generated Cost / run $0.1277 Runtime 86.2s
Prompt for this run
Build a full-screen flow-field particle animation using the provided p5.js library in global or instance mode. 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 `p5.min.js` (global `p5`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - Animate at least 2,000 particles, with motion guided by a smoothly varying Perlin-noise vector field. Nearby particles should follow locally coherent directions. - Leave fading trails and vary particle colors over time. Evolve the field gradually so the pattern changes instead of repeating a short recorded sequence. - Recycle particles at the canvas boundaries and keep the population bounded. Avoid allocating an ever-growing trail history. - Provide Pause/Resume and Restart. Restart clears trails and initializes a new particle arrangement. - Fit the viewport and keep controls responsive at 1200 by 800. Choose the palette, field scale, and particle speed freely. Verify: Sample the animation at several moments to inspect coherent nearby particle motion, fading trails, and changing colors. Pause and resume, then use Restart and check that the trails clear and a new arrangement appears.
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
METRICS
Transcript · 21 messages
Build a full-screen flow-field particle animation using the provided p5.js library in global or instance mode. 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 `p5.min.js` (global `p5`) through a plain local script tag; the runner will inline it into the final artifact. Required behavior: - Animate at least 2,000 particles, with motion guided by a smoothly varying Perlin-noise vector field. Nearby particles should follow locally coherent directions. - Leave fading trails and vary particle colors over time. Evolve the field gradually so the pattern changes instead of repeating a short recorded sequence. - Recycle particles at the canvas boundaries and keep the population bounded. Avoid allocating an ever-growing trail history. - Provide Pause/Resume and Restart. Restart clears trails and initializes a new particle arrangement. - Fit the viewport and keep controls responsive at 1200 by 800. Choose the palette, field scale, and particle speed freely. Verify: Sample the animation at several moments to inspect coherent nearby particle motion, fading trails, and changing colors. Pause and resume, then use Restart and check that the trails clear and a new arrangement appears.
thinking
Building your flow-field — 2,000+ particles, evolving noise, and trails.
{"command":"ls -la; pwd"}total 1024 drwx------ 3 node node 4096 Oct 9 06:45 . drwxrwxrwt 6 root root 4096 Oct 9 06:45 .. drwxr-xr-x 3 node node 4096 Oct 9 06:45 .home -rw-r--r-- 1 node node 1034532 Oct 9 06:45 p5.min.js /tmp/job-xD3xBV
thinking
Balancing canvas rendering and particle performance by choosing a translucent overlay for trails and HSB color mode with noise-based field.Extending the design with typed arrays, boundary recycling, and dynamic hue plus UI controls.
Full-screen canvas, fading trails, and evolving colors — writing the piece now.
index.html (11340 bytes)Successfully wrote to index.html
thinking
{"action":"reload"}Frame 1, +0ms
[Browser image supplied to model]
{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"FLOW FIELD · 2,500 PARTICLES\n\nPerlin-noise vector field · fading trails · evolving hues. Nearby particles share locally coherent directions; the field drifts in time so the pattern never loops.\n\n⏸ Pause\n↻ Restart\nSPEED\n2.0\nTRAILS\nLONG\n60 fps\n2,526 particles\nfield z=0.00\nclick + drag to stir the field · double-click to burst","images":"attached"}
thinking
Initial frame looks right — now sampling motion and controls.
{"action":"motion"}Frame 1, +0ms
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Frame 2, +645ms
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Frame 3, +1306ms
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Frame 4, +2014ms
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{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"FLOW FIELD · 2,500 PARTICLES\n\nPerlin-noise vector field · fading trails · evolving hues. Nearby particles share locally coherent directions; the field drifts in time so the pattern never loops.\n\n⏸ Pause\n↻ Restart\nSPEED\n2.0\nTRAILS\nLONG\n47 fps\n2,526 particles\nfield z=0.73\nclick + drag to stir the field · double-click to burst","images":"attached"}
thinking
Coherence and color drift look good — now testing the pause and restart controls.
{"action":"click","x":71,"y":122}Frame 1, +0ms
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{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"FLOW FIELD · 2,500 PARTICLES\n\nPerlin-noise vector field · fading trails · evolving hues. Nearby particles share locally coherent directions; the field drifts in time so the pattern never loops.\n\n▶ Resume\n↻ Restart\nSPEED\n2.0\nTRAILS\nLONG\n64 fps\n2,526 particles\nfield z=1.40\nclick + drag to stir the field · double-click to burst","images":"attached"}
thinking
{"action":"screenshot"}Frame 1, +0ms
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{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"FLOW FIELD · 2,500 PARTICLES\n\nPerlin-noise vector field · fading trails · evolving hues. Nearby particles share locally coherent directions; the field drifts in time so the pattern never loops.\n\n▶ Resume\n↻ Restart\nSPEED\n2.0\nTRAILS\nLONG\n64 fps\n2,526 particles\nfield z=1.40\nclick + drag to stir the field · double-click to burst","images":"attached"}
thinking
Pause freezes the frame — now resuming and restarting.
{"action":"click","x":72,"y":122}Frame 1, +0ms
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{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"FLOW FIELD · 2,500 PARTICLES\n\nPerlin-noise vector field · fading trails · evolving hues. Nearby particles share locally coherent directions; the field drifts in time so the pattern never loops.\n\n⏸ Pause\n↻ Restart\nSPEED\n2.0\nTRAILS\nLONG\n56 fps\n2,526 particles\nfield z=1.45\nclick + drag to stir the field · double-click to burst","images":"attached"}
thinking
{"action":"click","x":180,"y":123}Frame 1, +0ms
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{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"FLOW FIELD · 2,500 PARTICLES\n\nPerlin-noise vector field · fading trails · evolving hues. Nearby particles share locally coherent directions; the field drifts in time so the pattern never loops.\n\n⏸ Pause\n↻ Restart\nSPEED\n2.0\nTRAILS\nLONG\n61 fps\n2,526 particles\nfield z=3.25\nclick + drag to stir the field · double-click to burst","images":"attached"}
thinking
Restart clears trails and spawns a fresh arrangement — running a final file check.
{"command":"ls -la index.html p5.min.js && grep -c \"http\\|cdn\\|fetch\\|XMLHttpRequest\" index.html; grep -o '<script src=\"[^\"]*\"' inde-rw-r--r-- 1 node node 11358 Oct 9 06:45 index.html -rw-r--r-- 1 node node 1034532 Oct 9 06:45 p5.min.js 0 <script src="p5.min.js"
thinking
Done. `index.html` is saved and verified in-browser. **What was built** — full-screen p5.js (global mode, local `p5.min.js` only, no network) flow-field with ~2,500 particles (scales with viewport, clamped 2,000–4,200), Perlin-noise vector field with time-evolving `zoff`, translucent-overlay fading trails (no growing history, fixed `Float32Array`s), drifting HSB hues, boundary wrap + lifespan recycling, Pause/Resume and Restart buttons, plus speed/trail sliders, FPS/particle readout, and drag-to-stir / double-click burst extras. Fits the viewport via `windowResized`. **Actually checked:** - Initial + 4-frame motion sequence: nearby streaks align locally (coherent flow), trails elongate then fade, hues shift purple → pink/red → orange over seconds, field `z` advances. - Pause: button flips to ▶ Resume, `z=1.40` frozen across two screenshots — animation halted. - Resume: `z` advances again (1.40→1.45), motion continues. - Restart: long trails vanish (fresh dots only), new blue/purple arrangement with new `z=3.25` — clears + reinitializes. - No console errors; 47–64 fps at 1200×800; controls clickable and responsive. **Remains unverified:** long-run boundary recycling (no leaks by design), narrow-mobile layout, and keyboard shortcuts (Space/R).