While attempting to create a flag using the cloth example from the three.js documentation, I encountered difficulties defining the constraints for the flag structure.
Example Link:
https://threejs.org/examples/#webgl_animation_cloth
Source Code: https://github.com/mrdoob/three.js/blob/master/examples/webgl_animation_cloth.html
I made an effort to thoroughly comment on each code block since the code consists of approximately 300 lines.
In my understanding, the function SatisfyConstraints calculates the differentiation vector by subtracting two points and uses it to determine corrections based on length.
The "simulate" function at the end of the code utilizes SatisfyConstraints to control how the flag moves.
// JavaScript code snippet continues...Additionally, in an attempt to enhance the functionality of SatisfyConstraints, I tried using position.copy(point) and position.copy(next_point) to duplicate coordinates but faced challenges in its execution resulting in an error message:
Uncaught TypeError: Cannot read property 'position' of undefined
at SatisfyConstraints (simulation3D.html:102)
at simulate (simulation3D.html:212)
at animate (simulation3D.html:419)