Godot Engine – Multi-platform 2D and 3D game engine

Official source code of FreeCAD, a free and opensource multiplatform 3D parametric modeler.

Filament is a real-time physically based rendering engine for Android, iOS, Windows, Linux, macOS, and WebGL2

Cross-platform, graphics API agnostic, "Bring Your Own Engine/Framework" style rendering library.

An open source re-implementation of RollerCoaster Tycoon 2 🎢

Bullet Physics SDK: real-time collision detection and multi-physics simulation for VR, games, visual effects, robotics, machine learning etc.

openFrameworks is a community-developed cross platform toolkit for creative coding in C++.

Tutorial for the Vulkan graphics and compute API

Postmodern immutable and persistent data structures for C++ — value semantics at scale

ossia score, an interactive sequencer for the intermedia arts

The FLIP Fluids addon is a tool that helps you set up, run, and render high quality liquid fluid effects all within Blender, the free and open source 3D creation suite.

Artist-friendly Modular Machine for Art and Technology

Easy and efficient audio synthesis in C++

This openFrameworks addon gives you an easy way of putting together a chain of GLSL post-processing effects.

Openframework wrapper for box2d

A header-only library to generate meshes for a solid path. Useful to render thick lines using OpenGL.

Arduino library for dynamixel servos

An openFrameworks wrapper for Clipper - "an open source freeware polygon clipping library".

Shadow map using PCF or gaussian disk sampling for soft borders