High praise. Thank you.

I'll see what I can do.

Is there any reason why most of these 3d engines use one-letter variable names?

Because 'x' is easier to type than "getHorizontalScreenSpacePixelPositionRelativeToBottomLeftCorner()" ?

While true, you end up reading code with your variables more often than you write your variables so I tend to optimize for readability over ease of typing.

In a setting with much arithmetic "x" is also vastly easier to read. See pretty much any mathematics or physics paper or textbook -- made for reading...

Thanks!

Maybe N64-like would have been a more appropriate title. It implements an N64-like pipeline with software texture mapping and Gouraud Shading.

It does say "The N64-like software renderer" on the GitHub page.

I think it was modified after being posted.

Yes it was, to clear things up a little.