Feather is a small OpenGL engine written in C++ developed for fun and learning purposes. The API is loosely inspired by BabylonJS.
- Blinn-Phong shading
- PBR shading
- Normal mapping
- Shadow Mapping
- CPU mouse picking
- Post-processing effects
- Compute shaders
- Raw
.objfile loading - Up to 128 point lights by default
- ImGui integration
The entire code for the physics engine is available in the core/physics directory. It is based on the Position-Based Dynamics (PBD) method, and includes the following features:
- XPBD soft body simulation
- HPBD multigrid solver for XPBD
- Distance constraints
- Fast and Dihedral bending constraints
- Tetrahedral volume constraints
- Global volume constraints
- Collision constraints with friction
- Collision LoD using HPBD
- Constraints and bounding boxes helpers
A detailed report is available in the root directory of the project.
- Mouse drag: Rotate the camera
- Ctrl + Mouse drag: Pan the camera
- Mouse wheel: Zoom in/out
- Shift + Mouse drag: lock rotation to pick an object
Feather uses GLFW3 for window management and input, as well as GLM for math operations.
They can be installed on any Debian-based system using the following command:
sudo apt install libglfw3-dev libglm-devFeather uses CMake as its build system. To build the project, you can use the following commands:
mkdir build
cd build
cmake ..
make