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Matrix digital rain · glm-5

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 · 4 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 the Matrix digital rain effect - the iconic falling green characters from The Matrix movie. This is a classic visual effect with:

1. Full-screen black canvas
2. Columns of falling green katakana glyphs (Japanese characters)
3. Trailing fade effect (characters behind the leading one fade out)
4. Brighter leading character (the front of each column is brighter/white)

Let me create a self-contained HTML file with all CSS and JS inline.
write /workspace/index.html (4643 bytes)
toolResult

Successfully wrote 4643 bytes to /workspace/index.html

assistant
thinking
I've created the Matrix digital rain effect. Let me verify it was written correctly by reading it back.

I've created the Matrix digital rain effect in `index.html`. The implementation includes: - **Full-screen black canvas** that fills the entire viewport - **Falling katakana glyphs** - Japanese characters plus some numbers/symbols for variety - **Trailing fade effect** - Each column has a 20-character trail that fades from bright to dark green - **Brighter leading character** - The front of each column is rendered in bright white with a green glow (shadow blur) - **Variable speeds** - Each column falls at a slightly different speed for a more organic feel - **Random restart** - Columns randomly reset to the top to create continuous rain The effect uses a semi-transparent black overlay that creates the natural trailing fade as characters move down the screen. Open the file in a browser to see the iconic Matrix digital rain!

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

modelglm-5
vendorZ.ai · GLM
harnesspi-agent
generated2026-07-22

EVALUATION

4/5 working

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

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 motion50.3%
on click45.1%
on drag49.9%
on wheel59.4%
on enter + space54.2%
on arrow keys57.1%
on w/a/s/d56.7%
frame spread21.6 / 255
console errors0
js errors none

METRICS

runtime26.4s
tokens in1.3k
tokens out1.3k
cached2.9k
cost / run$0.0037