Coding Challenge #24: Perlin Noise Flow Field

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Published on June 27, 2016 2:55:52 PM ● Video Link: https://www.youtube.com/watch?v=BjoM9oKOAKY

Duration: 33:34

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In this coding challenge, I use Perlin noise to create a two-dimensional flow field with the p5.js library. Code: https://thecodingtrain.com/challenges/24-perlin-noise-flow-field

🕹️ p5.js Web Editor Sketch: https://editor.p5js.org/codingtrain/sketches/vDcIAbfg7

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References:
🗄 p5.js noise() reference: https://p5js.org/reference/#/p5/noise

Videos:
🔴 Livestream Archive: https://youtu.be/sor1nwNIP9A
🎥 My videos about Perlin Noise: https://www.youtube.com/playlist?list=PLRqwX-V7Uu6bgPNQAdxQZpJuJCjeOr7VD

Related Coding Challenges:
🚂 #11 3D Terrain Generation with Perlin Noise in Processing: https://youtu.be/IKB1hWWedMk
🚂 #132 Fluid Simulation: https://youtu.be/alhpH6ECFvQ
🚂 #C4 - Coding in the Cabana Worley Noise: https://youtu.be/4066MndcyCk

Timestamps:
0:00 Introduction
0:35 Two dimensional Perlin noise
2:02 Scale
5:08 Create a vector
5:45 Draw vector as a line
7:09 Random angle
8:10 Flow field
9:24 N-dimensional Perlin noise
9:53 Add zoff
11:56 Add Particle class
15:26 Add particles
16:26 Add edges()
17:34 Have particles be affected by vectors
18:34 Flowfield array
21:00 Follow()
22:56 Set magnitude of vectors
26:42 Add alpha
27:36 Store particle's previous position
27:56 Draw line between current and previous position

Editing by Mathieu Blanchette
Animations by Jason Heglund
Music from Epidemic Sound

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🔗 p5.js: https://p5js.org
🔗 p5.js Web Editor: https://editor.p5js.org/
🔗 Processing: https://processing.org

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#perlinnoise #arrays #p5js