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https://preview.redd.it/dl0891lv3ru61.png?width=800&format=png&auto=webp&s=294c53cb6b330c3ad3d97712ec335c17046697a7

https://www.desmos.com/calculator/4os2lkz41w

https://en.wikipedia.org/wiki/3D_projection#Mathematical_formula

I've been wanting to do this for a while and I finally did it :D

I pretty much just copied equations from the wiki article. I just need help with a few small things.

Firstly, how do I add perspective? At the bottom of the page there is another list of points that is disabled. It takes e_x, e_y, and e_z into its calculations (from the wiki article I linked). I think that has something to do with perspective and FOV but it makes everything work weird and I can't figure it out.

Next, how would I add lines between the points?

Lastly, how can I make the rotation control point a bit more interactive? I'm not sure if "interactive" is the right word but currently it only controls x and y rotations, so it would be cool if it could also do z rotations somehow.

Also, this is not really related to this project too much but I figured I'd ask: Is it possible to use some of the techniques I used here to project a 3d equation into the 2d plane? I am particularly interested in rotating a sine wave into the corkscrew shape.