Fluid simulation · qwen3-30b-a3b-instruct-2507
Output saved · Stopped by an API error Cost / run $0.0028 Runtime 266.8s
A model request failed and its retries ran out. The output is the HTML saved before that.
Prompt for this run
Build an interactive 2D fluid-and-dye simulation on a full-screen canvas. 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. No third-party libraries are provided. Required behavior: - Maintain a velocity field and a colored dye field. Advect dye through the moving fluid so it forms persistent swirling flow; a collection of independent fading particles is not sufficient. - Dragging injects dye and momentum in the drag direction. Momentum and dye remain visible after the pointer is released and gradually dissipate. Approximate fluid behavior is acceptable; choose the numerical method and Canvas 2D or WebGL implementation. - Seed the initial scene with a small amount of colored dye and motion so the simulation is visible on load. - Provide a color selector, Pause/Resume, and Clear. Clear removes dye and resets velocity; the next drag can start a new flow. - Bound simulation resolution and work per frame so controls remain responsive at a 1200 by 800 viewport. Verify: Drag through the canvas and sample the flow after release. Check that dye follows the drag, continues swirling, and responds to a second drag in another direction. Use Clear, then drag again to check that a fresh flow can start.
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 · 42 messages
Build an interactive 2D fluid-and-dye simulation on a full-screen canvas. 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. No third-party libraries are provided. Required behavior: - Maintain a velocity field and a colored dye field. Advect dye through the moving fluid so it forms persistent swirling flow; a collection of independent fading particles is not sufficient. - Dragging injects dye and momentum in the drag direction. Momentum and dye remain visible after the pointer is released and gradually dissipate. Approximate fluid behavior is acceptable; choose the numerical method and Canvas 2D or WebGL implementation. - Seed the initial scene with a small amount of colored dye and motion so the simulation is visible on load. - Provide a color selector, Pause/Resume, and Clear. Clear removes dye and resets velocity; the next drag can start a new flow. - Bound simulation resolution and work per frame so controls remain responsive at a 1200 by 800 viewport. Verify: Drag through the canvas and sample the flow after release. Check that dye follows the drag, continues swirling, and responds to a second drag in another direction. Use Clear, then drag again to check that a fresh flow can start.
index.html (10453 bytes)Successfully wrote to index.html
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nClear","images":"model does not support images"}
{"action":"inspect"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: Cannot read properties of undefined (reading 'NaN')"],"dom":"Pause\nClear","images":"model does not support images"}
{"path":"index.html","edits":[{"oldText":" // Render\n function render() {\n // Clear canvas\n ctx.clearRect(0, 0, width, heSuccessfully replaced 1 block(s) in index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nClear","images":"model does not support images"}
{"path":"index.html","edits":[{"oldText":" // Set canvas to full viewport size\n function resizeCanvas() {\n const container = doSuccessfully replaced 1 block(s) in index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nClear","images":"model does not support images"}
{"path":"index.html","edits":[{"oldText":" // Simulation parameters\n const GRID_SIZE = 64; // Lower resolution for performance\n cSuccessfully replaced 1 block(s) in index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing."],"dom":"Pause\nClear","images":"model does not support images"}
{"action":"inspect"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: Cannot read properties of undefined (reading 'NaN')"],"dom":"Pause\nClear","images":"model does not support images"}
{"path":"index.html","edits":[{"oldText":" // Render\n function render() {\n // Clear canvas\n ctx.clearRect(0, 0, width, heSuccessfully replaced 1 block(s) in index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: Unexpected token '}'"],"dom":"Pause\nClear","images":"model does not support images"}
{"path":"index.html","edits":[{"oldText":" // Render\n function render() {\n // Clear canvas\n ctx.clearRect(0, 0, width, heSuccessfully replaced 1 block(s) in index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: Unexpected token '}'"],"dom":"Pause\nClear","images":"model does not support images"}
{"path":"index.html","edits":[{"oldText":" // Render\n function render() {\n // Clear canvas\n ctx.clearRect(0, 0, width, heSuccessfully replaced 1 block(s) in index.html.
{"action":"reload"}{"console":["warning: An iframe which has both allow-scripts and allow-same-origin for its sandbox attribute can escape its sandboxing.","error: Unexpected token '}'"],"dom":"Pause\nClear","images":"model does not support images"}
{"path":"index.html","edits":[{"oldText":" // Render\n function render() {\n // Clear canvas\n ctx.clearRect(0, 0, width, heNo changes made to index.html. The replacement produced identical content. This might indicate an issue with special characters or the text not existing as expected.