If we stand in front of the Pacific Ocean and look straight ahead, the horizon line will be where the sky and the ocean meets in the distance.
But if I'm tilting my head all the way back so that all I can see is the sky, where will be the horizon? Across the sky?
And if I'm tilting my head all the way down so that all I can see is the ground, the horizon will be across the ground?
I'm currently reading Perspective Made Easy by Norling and is a bit confused about this.