DirectX 8 to OpenGL wrapper for legacy apps and portability
...It provides a foundation for running legacy graphics software, experimenting with API translation, or extending support for older DirectX-based applications on modern systems.
See article:
https://tech.slashdot.org/story/02/02/12/1824215/an-open-source-direct3d-80-wrapper-for-open-gl
A small, simple open-source rendering engine that uses OpenGL ES 2.0 - OpenGL 3.0> API, providing support for mobile and desktop platforms. Driven by the latest shader pipeline and GPU buffers, it supports fast next generation rendering techniques.
Deploy in 115+ regions with the modern database for every enterprise.
MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
XEngine is a platform- and rendering-API-independent 3D engine for real-time visualization with support for programmable graphics pipeline architectures implemented in C++. Platforms: Windows, Linux. APIs: OpenGL 1.3+, Direct3D 8.1, Direct3D 9.0
LGPL Open Inventor (tm) C++ API using OpenGL from original SGI source. Inventor is the standard API for developers of Windows, Linux, and other Unix 3D applications. Current version only works on Irix and Linux. Port in progress to other platforms.