A modern library for 3D data processing
The open source mesh processing system
3D GPUs Strange Attractors and Hypercomplex Fractals explorer
Lightweight, high-performance HTML renderer for game developers
3D Engine c++
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
LDraw™ editor for LEGO® style digital building instructions.
Viewer and exporter for Unreal Engine 1-4 assets
Vivid is a modern C++ 3D engine using OpenGL4+
A shader-based software renderer written from scratch in C89
Coin3D Qt GUI Library
Minimalist 3D Scenegraph Management Framework
https://github.com/horde3d/Horde3D
A Tcl/Tk widget for OpenGL rendering.
1st 3D game engine built in C# for .NET, Visual3D Engine's predecessor