Helix Toolkit is a collection of 3D components for .NET
3D reconstruction software
Avogadro libraries provide 3D rendering, visualization, and analysis
Open game and rendering engine packed into a JavaScript framework
aka ogre v2 - scene-oriented, flexible 3D C++ engine
Efficient glTF 3D import / export package for Unity
LDraw™ editor for LEGO® style digital building instructions.
This program animates a shaded tesseract
Realtime raytracer using SIMD on ARM, MIPS, PPC and x86
Rayshade raytracer
Vivid is a modern C++ 3D engine using OpenGL4+
A react renderer for blessed
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
Compose render props components like a pro
Program for drawing 3D surfaces from parametric equations
3D .NET engine for Windows, Linux, Mac
shader editor
https://github.com/horde3d/Horde3D
Bruno's RAY Tracing Engine