Mandelbrot explorer · qwen3.5-35b-a3b
Output generated Cost / run $0.0040 Runtime 43.3s
Prompt for this run
Build an interactive Mandelbrot-set explorer 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: - Compute the Mandelbrot set from complex coordinates and use a smooth escape-time color gradient, with a distinct color for points treated as inside the set. - Initially show the complete main cardioid and surrounding lobes. Dragging pans the image with the pointer. Mouse-wheel zoom is centered on the complex point under the cursor. - Recompute the fractal after navigation rather than scaling a static image. Use sufficient iterations to reveal new detail as the user zooms, and keep controls responsive during rendering. - Provide Reset view to restore the initial bounds. Prevent wheel navigation from scrolling the surrounding page. - Use Canvas 2D or WebGL and procedural colors; do not load a fractal image. Verify: Zoom into a recognizable boundary point and check that it stays near the cursor while additional detail is rendered. Pan the view, then use Reset view and compare with the initial framing.
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 · 7 messages
Build an interactive Mandelbrot-set explorer 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: - Compute the Mandelbrot set from complex coordinates and use a smooth escape-time color gradient, with a distinct color for points treated as inside the set. - Initially show the complete main cardioid and surrounding lobes. Dragging pans the image with the pointer. Mouse-wheel zoom is centered on the complex point under the cursor. - Recompute the fractal after navigation rather than scaling a static image. Use sufficient iterations to reveal new detail as the user zooms, and keep controls responsive during rendering. - Provide Reset view to restore the initial bounds. Prevent wheel navigation from scrolling the surrounding page. - Use Canvas 2D or WebGL and procedural colors; do not load a fractal image. Verify: Zoom into a recognizable boundary point and check that it stays near the cursor while additional detail is rendered. Pan the view, then use Reset view and compare with the initial framing.
thinking
The user wants me to build an interactive Mandelbrot set explorer in a single HTML file. Let me break down the requirements: 1. Full-screen canvas showing the Mandelbrot set 2. Smooth escape-time color gradient with a distinct color for points inside the set 3. Initial view showing the complete main cardioid and surrounding lobes 4. Drag to pan the image 5. Mouse-wheel zoom centered on the complex point under the cursor 6. Recompute the fractal after navigation (not scaling a static image) 7. Use sufficient iterations to reveal new detail as zooming 8. Keep controls responsive during rendering 9. Reset view to restore initial bounds 10. Prevent wheel navigation from scrolling the page 11. Use Canvas 2D or WebGL with procedural colors (no external images) Let me write this complete HTML file with inline CSS and JavaScript.
/tmp/job-Rg7Mzo/index.html (16856 bytes)Successfully wrote to /tmp/job-Rg7Mzo/index.html
thinking
The file has been written. Now let me run it in the browser to verify the behavior. I'll first check the initial output and then test the various features.
Now let me run the application in the browser and verify the behavior:
{"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.","error: Unexpected identifier 'imageData'"],"dom":"Mandelbrot Explorer\n\nDrag to pan\n\nScroll to zoom\n\nR or Reset to reset\n\nReset View\nIterations: 0 | Zoom: 1.0x","images":"attached"}
thinking
I see the page is rendering but the canvas is completely black, and there's an error with "imageData". The initial output shows no fractal being drawn. Let me check the current file and fix the rendering issues.
I see the canvas is black and there's an error. Let me check the current file content and fix the rendering issue: