P5Js — p5.js sketches: gen art, shaders, interactive, 3D
P5Js — p5.js sketches: gen art, shaders, interactive, 3D
Start with meaning, then move to detail.
This lesson explains P5Js — p5.js sketches: gen art, shaders, interactive, 3D as part of extending Hermes and connecting external tools. You will learn what it does, when it matters, and the smallest safe test that proves it works.
If you are new, do not memorize names. Focus on three questions: what problem does this solve, what access does it need, and how can you verify the result?
For practice, inspect the first example, identify its effects, run it on test data, and compare the result with the source claim.
For advanced readers, inspect Skill metadata, Reference: full SKILL.md, When to use, then verify failure modes and version compatibility.
Complete installation and one successful task before adding new capabilities.
A clear outcome before you read.
- Understand P5Js — p5.js sketches: gen art, shaders, interactive, 3D without assumed prior knowledge.
- Separate the source description from what still needs testing in your environment.
- Read the first command and identify its inputs and outputs before copying it.
Short definitions before the details.
- Skill
- An instruction bundle that teaches Hermes a repeatable workflow without necessarily adding an external service.
p5.js sketches: gen art, shaders, interactive, 3D
What does the source say, and in what order?
- 01Skill metadata
Start here to understand the core idea or structure.
- 02Reference: full SKILL.md
Read this after the foundation, then connect it to the previous step.
- 03When to use
Read this after the foundation, then connect it to the previous step.
- 04What's inside
Read this after the foundation, then connect it to the previous step.
- 05Creative Standard
Read this after the foundation, then connect it to the previous step.
- 06Modes
Read this after the foundation, then connect it to the previous step.
- 07Stack
Read this after the foundation, then connect it to the previous step.
- 08Version Note
Read this after the foundation, then connect it to the previous step.
- 09Pipeline
Read this after the foundation, then connect it to the previous step.
- 10Creative Direction
Finish here to verify the result and special cases.
Copy only after you understand the effect.
CONCEPT → DESIGN → CODE → PREVIEW → EXPORT → VERIFYKey implementation patterns:
- **Seeded randomness**: Always `randomSeed()` + `noiseSeed()` for reproducibility
- **Color mode**: Use `colorMode(HSB, 360, 100, 100, 100)` for intuitive color control
- **State separation**: CONFIG for parameters, PALETTE for colors, globals for mutable state
- **Class-based entities**: Particles, agents, shapes as classes with `update()` + `display()` methods
- **Offscreen buffers**: `createGraphics()` for layered composition, trails, masks
### Step 4: Preview & Iterate
- Open HTML file directly in browser — no server needed for basic sketches
- For `loadImagIn hot loops (particles, pixel ops), use `Math.*` instead of p5 wrappers — measurably faster:Read the first command and identify its inputs and outputs before copying it.
Match every command to your installed Hermes version, review the files and accounts it can reach, and use non-sensitive data for the first test. If this explanation differs from the source, the official source wins.