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Matrix digital rain · qwen3.5-122b-a10b

Create the Matrix digital rain effect on a full-screen black canvas: columns of falling green katakana glyphs with a trailing fade and a brighter leading character.

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transcript · 6 messages
user

Create the Matrix digital rain effect on a full-screen black canvas: columns of falling green katakana glyphs with a trailing fade and a brighter leading character.

assistant
thinking
The user wants me to create a Matrix digital rain effect in a single HTML file. This is a classic visual effect that features:
1. A black canvas background
2. Columns of falling green characters (katakana)
3. A trailing fade effect
4. Brighter leading character at the front of each trail

I'll create this using HTML5 Canvas and JavaScript. The key elements:
- Full-screen canvas
- Katakana characters array
- Multiple columns with different drop positions
- Trail effect by drawing semi-transparent black rectangles over previous frames
- Different brightness for leading character vs trailing characters

Let me write this self-contained HTML file.
write index.html (3134 bytes)
toolResult

Successfully wrote 3134 bytes to index.html

assistant
thinking
The file has been created successfully. Let me verify it exists and is complete.
bash {"command":"ls -la index.html"}
toolResult

-rw-r--r--. 1 node node 3300 Aug 1 20:17 index.html

assistant
thinking
The file has been created successfully. The Matrix digital rain effect is now ready. Let me summarize what the file contains for the user.

Created `index.html` with the Matrix digital rain effect: - **Full-screen black canvas** that adapts to window size - **Falling green katakana glyphs** (plus Latin letters and numbers) in columns - **Trailing fade effect** using semi-transparent black overlays - **Brighter leading character** - occasionally a white character appears at the front of each trail - Runs at ~30 FPS for that retro CRT feel Open `index.html` in a browser to see the effect.

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

modelqwen3.5-122b-a10b
vendorQwen
harnesspi-agent
generated2026-08-01

EVALUATION

4/5 working

Classic Matrix digital rain with falling green katakana, fading trails, and bright leading characters; animates continuously, unaffected by input 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.

idle motion1.9%
on click7.2%
on drag7.3%
on wheel6.1%
on enter + space6.4%
on arrow keys6.5%
on w/a/s/d6.4%
frame spread5 / 255
console errors0
js errors none

METRICS

runtime11.3s
tokens in7.0k
tokens out1.2k
cached0
cost / run$0.0043