position-based-dynamics
suanPan
| position-based-dynamics | suanPan | |
|---|---|---|
| 1 | - | |
| 67 | 47 | |
| - | - | |
| 0.0 | 8.2 | |
| over 1 year ago | 7 days ago | |
| C++ | C++ | |
| Boost Software License 1.0 | GNU General Public License v3.0 only |
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position-based-dynamics
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SoftBody Simulation model
If you are already familiar with opengl, then you don't actually need a soft body sim open source project that is written with opengl to understand how to implement soft body sim in opengl. Basically, what I mean by this is that for soft body simulations, vertices may deform by many transformations including, but not exclusively, rigid transformations (soft bodies can deform in highly non-linear ways, you can stretch them in many ways, twist them, etc). This means that you cannot simply animate your objects with a rotation and a translation as you would animate rigid bodies. You will need to update vertex positions every frame and transfer them to opengl for rendering. So in other words, you only need an open source project which solves the problem of computing new vertex positions at every frame given external and internal forces. There are many different algorithms for simulating soft bodies, (algorithms which compute new vertex positions at every frame), but I would suggest targeting position based dynamics, which is one of the simpler but more flexible real-time methods for simulation. It is used in many real time scenarios such as video games. I believe there are many open source projects which implement position based dynamics, but if you can't find them or do not find them to your liking, you can try this one https://github.com/Q-Minh/position-based-dynamics. It is a prototype of PBD that you can play with in ImGui and uses libigl for visualization. libigl's viewer actually wraps opengl code. But as I said, you only need a way to find and update new vertex positions and send those to opengl regularly to integrate the soft body sim to opengl. Hope this helps.
suanPan
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Tracking mentions began in Dec 2020.
What are some alternatives?
rigs-of-rods - Main development repository for Rigs of Rods soft-body physics simulator
Kratos - Kratos Multiphysics (A.K.A Kratos) is a framework for building parallel multi-disciplinary simulation software. Modularity, extensibility and HPC are the main objectives. Kratos has BSD license and is written in C++ with extensive Python interface.
DART - DART: Dynamic Animation and Robotics Toolkit
HELICS - Hierarchical Engine for Large-scale Infrastructure Co-Simulation (HELICS)
FFTW - DO NOT CHECK OUT THESE FILES FROM GITHUB UNLESS YOU KNOW WHAT YOU ARE DOING. (See below.)
preCICE - A coupling library for partitioned multi-physics simulations, including, but not restricted to fluid-structure interaction and conjugate heat transfer simulations.
itpp - IT++ library mirror/fork. C++ library of mathematical, signal processing and communication classes and functions.
d-SEAMS - The d-SEAMS C++ core engine
Blitz++ - Git mirror of Blitz++ at http://sourceforge.net/projects/blitz/
Trilinos - Primary repository for the Trilinos Project
Torch - http://torch.ch
Dimwits - A compact C++ header-only library providing compile-time dimensional analysis and unit awareness