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.)
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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
commented
3 weeks ago
Discussed in https://github.com/RayTracing/raytracing.github.io/discussions/1386