Random

Random?

ECAL
Semaine bloc
3–7 October, 2022

Andreas Gysin
Sébastien Matos

Brief

Design a true random generator. Use its output as a an input (seed) for a pseudo random generator. Use the deterministic sequence for a new drawing (?) application or machine.
The same input must generate the same output.

TRNG → Seed → PRNG → Drawing (100×)

Falling dices

Topics

• Drawing applications / image generation
• Generative design
• Rule-based systems
• Conditional systems
• L-Systems
• Markow Chains
• …

Sources

• Vera Molnar: Randomness
• MuDA plotter
• Faber Finds Generative book covers

References

• p5js’ random()
• Random Number Generation
• Seeding the random number in JavaScript
• Entropy (Wikipedia)

Examples

1. Ten Print
2. Simple PRNG
3. Deterministic Tree
4. Hash
5. Random Viz
6. Grid 1
7. L-System 1
8. Select external webcam
9. (Poor man’s) Blob detection
10. Simple grid with mouse
11. Draw in grid
12. Draw in grid in time