3D and 2D game engine written in Rust
3D Engine c++
LDraw™ editor for LEGO® style digital building instructions.
Growth-grammar related Interactive Modelling Platform
Vivid is a modern C++ 3D engine using OpenGL4+
C++ Frontend for the RenderMan Interface
Shadow mapping in Qt3D using C++
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
Galaxy extraterrestrial life simulation
A public domain cross platform 3D game
PHIGS (Programmer's Hierarchical Interactive Graphics System)
Gimpel3D - 2D/3D Stereo Conversion Editor
Support for jgeom, the java geometry graphics library using NURBS
diagrammatic 3D in a web browser using SVG
Obsolete: use https://github.com/VMML/vmmlib