Mandelbrot explorer · qwen3.5-122b-a10b
Render the Mandelbrot set with a smooth color gradient on a full-screen canvas, with click-and-drag to pan and mouse-wheel to zoom.
transcript · 6 messages
Render the Mandelbrot set with a smooth color gradient on a full-screen canvas, with click-and-drag to pan and mouse-wheel to zoom.
thinking
The user wants me to create a single-page web app that renders the Mandelbrot set with: 1. Smooth color gradient 2. Full-screen canvas 3. Click-and-drag to pan 4. Mouse-wheel to zoom I need to create a self-contained index.html file with all CSS and JS inline, no external resources. Let me write this complete implementation:
index.html (15838 bytes)Successfully wrote 15838 bytes to index.html
thinking
The file has been created successfully. Let me verify it exists and is complete.
{"command":"ls -la index.html && head -5 index.html && echo \"...\" && tail -5 index.html"}-rw-r--r--. 1 node node 15838 Aug 1 20:15 index.html <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> ... // Initialize resizeCanvas(); </script> </body> </html>
thinking
The file has been created successfully. It's a complete self-contained HTML file with: - Full-screen canvas rendering the Mandelbrot set - Smooth color gradient using sine-based coloring - Click-and-drag to pan - Mouse wheel to zoom (zooms toward mouse position) - Touch support for mobile devices - Controls for max iterations, smooth coloring toggle, and reset button - Info display showing current zoom level, center position, and iteration count The implementation is fully sandboxed with no external resources.
Created `index.html` - a self-contained Mandelbrot set explorer with: **Features:** - **Full-screen canvas** rendering the Mandelbrot set - **Smooth color gradient** using sine-based potential function coloring - **Click-and-drag** to pan around the fractal - **Mouse wheel** to zoom in/out (zooms toward cursor position) - **Touch support** for mobile (single finger pan, pinch to zoom) - **Controls panel** with: - Max iterations slider (64-1024) - Smooth coloring toggle - Reset view button - **Info display** showing zoom level, center coordinates, and iteration count Open `index.html` in a browser to explore the infinite complexity of the Mandelbrot set!
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
Mandelbrot renders with drag-to-pan and wheel-zoom working, but color scheme (bright green/black) is ugly, not a smooth gradient.
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.