The next article in my “Xplain” series is now complete and has been published: “Adding Transparency”. It’s an explanation of how exactly we added transparent windows to the X server, explaining the COMPOSITE X extension, along with other things like RENDER and TFP, together with live demos.
Any and all feedback welcome. I’m having a lot of fun doing these, and I recently got some downtime at work, so the next one might come even quicker than expected.
Good stuff. I never understood the relationship between Pixmaps, redirection and the front buffer before this. In fact, I never really understood what redirection was at all. I can only wonder what motivated you to write an article on transparency in X.