[Book 1, Chapter 4.2] Z axis orientation

[hollasch]

Discussed in #1386

^{Originally posted by dimitry-ishenko January 24, 2024}
From chapter 4.2 of book 1:

For simplicity we'll start with the camera center at (0,0,0). We'll also have the y-axis go up, the x-axis to the right, and the negative z-axis pointing in the viewing direction. (This is commonly referred to as right-handed coordinates.)

It is my understanding that arrows on axes indicate positive direction. So, the above paragraph states that negative Z points towards the viewport, but the image shows the opposite -- the arrow (aka positive Z) is pointing towards the viewport.

Did I miss something?

[hollasch]

See @ParthKohli's comment.