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Mandelbrot explorer · qwen3-vl-235b-a22b-instruct

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.

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transcript · 4 messages
user

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.

assistant

I'll create a single HTML file that renders the Mandelbrot set with smooth color gradients, and implements click-and-drag panning and mouse-wheel zooming.

write index.html (7022 bytes)
toolResult

Successfully wrote 7022 bytes to index.html

assistant

I've created a complete Mandelbrot set renderer in a single HTML file. The implementation includes: 1. A full-screen canvas that automatically resizes with the window 2. Smooth color gradients using sine wave functions for coloring 3. Click-and-drag functionality to pan across the fractal 4. Mouse wheel zooming with zoom centered on the mouse position 5. Real-time rendering with smooth coloring algorithm The Mandelbrot set is calculated using the standard formula z = z² + c, with smooth coloring applied to create continuous gradients rather than banding. The zoom level is displayed in the top-left corner. You can open this index.html file in any modern browser to interact with the Mandelbrot set - click and drag to move around, and use the mouse wheel to zoom in and out.

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

modelqwen3-vl-235b-a22b-instruct
vendorQwen
harnesspi-agent
generated2026-08-01

EVALUATION

3/5 working

Mandelbrot fractal renders with drag-panning and wheel-zoom working, but colors are ugly flat green/red instead of 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.

idle motion0.0%
on click0.0%
on drag15.7%
on wheel3.6%
on enter + space0.0%
on arrow keys0.0%
on w/a/s/d0.0%
frame spread48.8 / 255
console errors0
js errors none

METRICS

runtime40.9s
tokens in3.3k
tokens out2.0k
cached1.5k
cost / run$0.0047