Coding Challenge #28: Metaballs

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The Coding Train

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Published on July 15, 2016 3:36:14 PM ● Video Link: https://www.youtube.com/watch?v=ccYLb7cLB1I

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Tutorial

Duration: 23:48

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Let's code some Metaballs (aka Isosurfaces) in Processing and how to control them using the Blob Detection methodology from my computer vision tutorial! Code: https://thecodingtrain.com/challenges/28-metaballs

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

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References:
📰 Exploring Meta-balls and Isosurfaces in 2D: https://www.gamedev.net/articles/programming/graphics/exploring-metaballs-and-isosurfaces-in-2d-r2556

Videos:
🔴 Livestream Archive: https://youtu.be/3xNv10FglGc

Related Coding Challenges:
🚂 #C4 - Coding in the Cabana Worley Noise: https://youtu.be/4066MndcyCk
🚂 #C5 - Coding in the Cabana Marching Squares: https://youtu.be/0ZONMNUKTfU

Timestamps:
00:00 Introduction
00:46 What is an Isosurface?
01:33 Code! Working with Pixels
02:35 Make a simple Isosurface
02:58 How to make Metaballs?
04:36 Code! Create a Blob class
07:43 Make the Blob move around
09:03 Create an Array of Blobs
10:37 Color pixels using all the Blobs
12:19 Add more Blobs
13:07 Make the Blobs Rainbow colored
14:14 Example of Blob Tracking
15:12 Combine Blob Tracking with Metaballs
19:32 Making some adjustments
21:07 Other ways to Move these Metaballs
21:51 Fixing a Bug

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

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#computervision #blobdetection #loadpixels #pixelanalysis #objecttracking #metaballs #isosurfaces #processing