WebGPU XPBD Cloth Simulator

This is a WebGPU Cloth Simulator that uses XPBD (extended position based dynamics) with small step sizes.

This relies heavily on the following papers:

• XPBD: Position-Based Simulation of Compliant Constrained Dynamics - Macklin et. al - NVIDIA
• Small Steps in Physics Simulation, Macklin et. al - NVIDIA
• A Survey on Position Based Dynamics, 2017

As well as code snippets from:

• Cloth simulation code - Matthias Müller

Development

The following steps describe how to run this simulation locally.

Note - This has only been tested on Windows (specifically with WSL2).

Accessing the WebGPU API

WebGPU is currently a developmental feature, and thus requires a browser that enables access to it. Google Canary is a good candidate. To enable the correct features in your browser, please do the following:

• Enable the #enable-unsafe-webgpu flag in about://flags.

Running the dev server

With yarn installed, run the following:

yarn
yarn start

Current implementation

• XPBD Simulation Loop
• Small Steps
• Constraints - Distance
• Constraints - Fast Performant Bending
• Constraints - Isometric Bending
• Constraints - Angular Bending
• Constraints - Collisions (Self)
• Constraints - Collisions (External)
• Damping