Mandelbrot explorer · gpt-5.4-nano
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 · 4 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
**Writing index.html for Pan functionality** I’m thinking about how to implement the pan feature. On mousedown, I'll need to record the starting complex position. Then, as the mouse moves, I’ll adjust the center accordingly. I also want to make sure it supports resizing, so I’ll keep that in mind while working on the code. There seems to be a lot to consider here, but I’m ready to get started on writing the index.html file!
index.html (14474 bytes)Successfully wrote 14474 bytes to index.html
Created `index.html` with a full-screen Mandelbrot set renderer on a canvas, using smooth gradient coloring, with: - **Click + drag** to **pan** - **Mouse wheel** to **zoom** (zoom centered on cursor) - **Double-click** and **press `0`** to reset view File: `./index.html`
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
Smooth-shaded Mandelbrot renders with correct drag-pan and wheel-zoom; keyboard inputs have no additional effect, as expected.
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.