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Mandelbrot explorer · gemini-3.1-flash-lite-preview

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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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
thinking
**Defining the Mandlebrot**

I'm now focusing on defining the Mandelbrot set within a full-screen canvas in a single HTML file, keeping it resource-independent. The canvas setup is in place, and I am working on the initial calculations and the color gradient for a visually appealing, basic rendering. I'm aiming for a straightforward, but effective, initial display.


**Implementing the Logic**

I'm now fully immersed in the JavaScript logic. I've established the 'state' object for tracking zoom, center coordinates, and dimensions. The rendering loop now grabs canvas data and calculates complex iterations for each pixel. I'm focusing on incorporating the escape time algorithm for pixel color determination, and also working on implementing the logarithmic smoothing formula for better detail. Mouse events are next: drag for pan, scroll for zoom.


write index.html (3789 bytes)
toolResult

Successfully wrote 3789 bytes to index.html

assistant

The Mandelbrot set explorer has been created in `index.html`. It supports full-screen rendering using a smooth coloring algorithm, click-and-drag to pan the view, and the mouse wheel to zoom in and out. You can open this file in any modern web browser to view the visualization.

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

modelgemini-3.1-flash-lite-preview
vendorGoogle
harnesspi-agent
generated2026-07-22

EVALUATION

3/5 working

Mandelbrot renders with drag-pan and wheel-zoom working, but color gradient is harsh green/orange, not smooth.

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 drag36.4%
on wheel6.5%
on enter + space0.0%
on arrow keys0.0%
on w/a/s/d0.0%
frame spread63.1 / 255
console errors0
js errors none

METRICS

runtime6.2s
tokens in4.4k
tokens out1.7k
cached0
cost / run$0.0036