OpenGL is an API for rendering 2D and 3D graphics now managed by the non-profit technology consortium Khronos Group. Implementors are free to provide their own implementation of the API. For example, in GNU/Linux systems NVIDIA provides its own proprietary version while other manufacturers like Intel are using Mesa, the most popular open source OpenGL implementation.

Because of this implementation freedom, ensuring compliance with the specification is important. Khronos provides their own OpenGL conformance test suite but there are several unofficial open source alternatives.

This talk will explain some of these open source OpenGL conformance test suites and give an introduction about how to use them, including sharing tips between the speaker and the audience.