Java/JavaFX/Kotlin Game Library (Engine)
realistic driving simulation + functions for 2D/3D graphics
An interactive viewer for three-dimensional chemical structures.
Vivid is a modern C++ 3D engine using OpenGL4+
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Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
Cross-platform 2D and 3D game engine
CSG for jMonkey
.NET wrapper for the Irrlicht Engine
XNA based game engine completely written in c#
3D tree generator
a java based software to convert 2D to 3D images.
3D game engine for C and C++
Megalui: 2D/3D OpenGL & C/C++ Library for Scientific Visualizations
Game engine supporting many 3D/2D formats and graphic effects