Show HN: OpenGL in super slow motion – visualising Z-buffering
The link is a demonstration of Z-buffering. I don't know that I'd call that "the core algorithm of 3D", but it is pretty important for most real-time rendering.The description doesn't give a lot of detail about the algorithm or its issues. The main problems to be aware of with Z-buffering are Z-fighting and the lack of support for transparency, neither of which are demonstrated. Here are a couple of links that go into a bit more detail:https://en.wikipedia.org/wiki/Z-fightinghttps://www.sjbaker.org/steve/omniv/alpha_sorting.html