Bgl and gpu for beginner : create a image slot from a bw render of a single object of the scene

Hi everyone…

Im new to blender and learn python for it.
From here it’s ok, but where can I find some beginner tutorials for using bgl and/or gpu?

I want to : use ogl to create a bw image (in the image slot, that I can use later) of the silhouette of a specific object in the scene.

And Im struggling to find my way out!!

Thanks :slight_smile: