The 3D rotation algorithms like used here I can’t figure out how they work. I know how to use all the trigonometry functions, and how they work, but I just can’t figure out how and why the rotations work. Can anyone help me?

That project uses 3D Matrix Maths to calculate the results of rotations on the x- and y-axes. To understand how this works you'll need a decent foundation in Matrix Mathematics. You can try searching the internet for tutorials, get a book from the library or ask your maths teacher. It's quite an involved subject so a lot of study will be required.

RokCoder wrote:

That project uses 3D Matrix Maths to calculate the results of rotations on the x- and y-axes. To understand how this works you'll need a decent foundation in Matrix Mathematics. You can try searching the internet for tutorials, get a book from the library or ask your maths teacher. It's quite an involved subject so a lot of study will be required.

Okay, thanks!