gerardmt/hair

A simple physics hair system.

Hair

A simple CPU driven hair system with an OpenGL renderer. Qt 5 used as the base framework.

The hair system is based on discrete particles simulation and virtual springs.

Features

• Control the camera (WASD keys for movement, and mouse left click + mouse movement for orientation).
• Move the head/rope anchor points (mouse right click + mouse movement)
• Numerical solvers implemented:
  • Euler
  • Semi-implicit Euler
  • Verlet
• Collider types implemented:
  • Sphere
  • Plane
  • Triangle
• Force fields implemented:
  • Gravity
  • Drag
• Implemented spring force between particles.

Known issues

• Some particles scape the box, or get into the sphere, on the edges/vertices. This is due to not checking for a collision again once the particle has been corrected. This can be easy fix at the cost of performance.

Requirements

The software requires the following libraries to be installed:

• GLEW
• Eigen
• QT 5

Build

Clone the repository:

git clone https://github.com/GerardMT/Hair
cd Hair

Compile the code:

cd src
qmake-qt5
make

The builds can be found at build/.

Run

Once build, run the project from the build directory:

cd ../build/release/
./hair

Screenshots

Other

Have a look at my other physics based projects:

• Particles
• Cloth
• Rigid-Bodies

If you want to fork this project I recommend cloning Cloth, which includes all the code from Particles and Hair, including some improvements.