Kokua is a V3 based open source metaverse viewer project.
A processing system for 3D triangular meshes
Maxwell Render for Blender
Real-time 3D viewer for LDraw LEGO models with OpenGL acceleration.
3D .NET engine for Windows, Linux, Mac
Texture font for OpenGL applications
A public domain cross platform 3D game
Design and Display Happy Cube solutions
kicad 3D is aimed to add 3D realistic feature on kicad pcb CAD
PHIGS (Programmer's Hierarchical Interactive Graphics System)
action/combat flight sim