Flow-field particles · glm-4.7
Using the pre-provided p5.min.js (global p5, instance or global mode), create a full-screen flow-field particle animation: thousands of particles advected by Perlin-noise vectors, leaving fading trails, with colors shifting over time.
transcript · 8 messages
Using the pre-provided p5.min.js (global p5, instance or global mode), create a full-screen flow-field particle animation: thousands of particles advected by Perlin-noise vectors, leaving fading trails, with colors shifting over time.
thinking
The user wants me to create a flow-field particle animation using p5.js. Let me plan this out: 1. Create a single HTML file with: - p5.min.js loaded from local file - Full-screen canvas - Perlin noise flow field - Thousands of particles - Fading trails (using semi-transparent background) - Colors shifting over time Key features to implement: - Use p5.js global mode - Create a flow field using noise() for vector directions - Particles that follow the flow field - Trail effect by drawing semi-transparent rectangle over the canvas - Color cycling over time using HSB mode - Handle window resize Let me write this:
I'll create a full-screen flow-field particle animation with p5.js. Let me build this in a single HTML file.
index.html (4105 bytes)Successfully wrote 4105 bytes to index.html
thinking
I've created a complete flow-field particle animation in index.html. Let me verify it was created correctly.
{"command":"ls -la index.html"}-rw-r--r-- 1 node node 4105 Jul 22 16:59 index.html
thinking
Great! The file was created successfully. Let me also verify that p5.min.js exists in the current directory as mentioned in the requirements.
{"command":"ls -la p5.min.js"}-rw-r--r-- 1 node node 1034532 Jul 22 16:58 p5.min.js
thinking
Perfect! Both files are in place. The index.html file I created includes: 1. Full-screen canvas that responds to window resizing 2. 4000 particles that follow Perlin noise-based flow field vectors 3. Fading trail effect using semi-transparent background rectangles 4. HSB color mode with colors shifting over time based on: - A global colorOffset that increases each frame - Particle position (x and y coordinates) - Individual particle color speed variation 5. Particles wrap around screen edges 6. No external dependencies - loads p5.min.js from the local file The animation creates beautiful flowing trails that fade over time, with colors that cycle through the spectrum continuously.
Created `index.html` with a full-screen flow-field particle animation featuring: - **4000 particles** advected by Perlin-noise vectors - **Flow field** calculated on a 20px grid using p5's `noise()` function - **Fading trails** achieved by drawing semi-transparent black rectangles each frame - **Dynamic colors** shifting over time using HSB mode - hue cycles based on global offset + particle position - **Screen wrapping** - particles seamlessly flow from one edge to another - **Responsive** - handles window resize events The animation loads the local `p5.min.js` file and runs entirely offline with no external dependencies. Open `index.html` in a browser to see the mesmerizing flow field 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
EVALUATION
Colorful flow-field particle trails animate continuously with shifting hues; input doesn't visibly alter behavior, but self-animation is strong.
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.