This is a real-time rope and cloth simulation using the basic Störmer-Verlet method of verlet integration.
This uses the equation:
xn+1 = 2xn - xn-1 + A(xn)Δt2
to calclulate the position (x) of a point in the next timestep based on the last two positions of the points,
the acceleration of the point (A(xn)) and the delta time (Δt2)
Verlet integration is a numerical method used to integrate Newton's equations of motion (wikipedia).
To use the program, you first need to download the code. Open index.html in a web browser
(This was not tested in any browsers other than Google Chrome. There may be some issues or bugs in other browsers.)
Controls for when in setup mode:
- LMB: Place dynamic node or change static node to dynamic
- RMB: Place static node or change dynamic node to static
- Hold MMB: Place constraint between two points. If you drag from one point to empty space, a new point will be created at the end
- Hold Spacebar: Place a line of equidistant nodes
Controls for when in simulation mode:
- LMB: Change static node to dynamic
- RMB: Change dynamic node to static
- Hold MMB:Cut constraints
General controls
- Delete: Clear all nodes and constraints
- Hold X or Backspace and press LMB or RMB: Delete specific node
Wikipedia - Verlet Integration - Research and part of description
Sebastian Lague - YouTube - Inspiration
MIT License
Copyright 2023 - thepixelist11
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
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