Creating a function that will calculate the equation of a line in 3D space

Processing Coding Questions
1

Hi, I am in need of some help. I am currently writing a program that will take a camera position and a point in space and project that point onto a 2D image plane. One function that I need to create is to create a function that gives an equation of a line (in parametric form) given two points (the camera position and the random point). I know how to do this with pen and paper https://www.youtube.com/watch?v=iqJ9vaPoHkQ&t=309s
but I don’t know how to program this. Thanks!

2

From what I understand, you need the camera position? https://processing.org/reference/camera_.html

If you generate a random point in 3D space, then you should be able to trace the line using the provided line() function.

Are you changing the camera position in your code?

Do

3

you need two functions for a line

y=mx+b
z=mx+b

then x++;

plug i nm and b

4

of course you would have remember that the y values go down etc.