OpenGL
OpenGL is a Linux alternative to Direct3D on Windows.
Considering a switch? OpenGL is one of 1 Programming programs on Linux Alternative.com mapped specifically to Direct3D users, and community votes below reflect how it compares to the others.
OpenGL is a cross-platform, open standard graphics API used for 2D/3D rendering, the traditional Linux counterpart to Direct3D.
Frequently asked questions
Is OpenGL free?
Most Linux alternatives listed here are free and open-source. Check OpenGL's own download page for exact licensing terms.
Does OpenGL run on Windows too?
Many Linux applications, including some in the Programming category, also have Windows builds. Check the download link above to see what platforms OpenGL supports.