GeeXLab codes samples and demos
GeeXLab is a powerful and easy-to-learn cross-platform tool for 3D programming, demos creation, game development, interactive applications, creative coding and prototyping. You can program GeeXLab demos and applications in Lua or in Python. GeeXLab supports OpenGL, OpenGL ES, Vulkan and Direct3D 12.
Homepage:
https://geeks3d.com/geexlab/
Learning pack:
https://geeks3d.com/geexlab/gdr/learn-code-samples.php
Misc demos:
https://geeks3d.com/geexlab/gdr/demos.php