>>12543811Assuming looking straight along the horizon
Assuming clear sky
Assuming perfect vision, imagine a camera with infinite resolution
If the angle of the ramp = your field of view:
The ramp fills your entire field of view. As you approach the upper edge of your field of view you see further along the ramp, reaching a limit at this edge where the entire ramp is visible. Top case in pic related. You can see the entire ramp. You cannot see the sky.
If the angle of the ramp < field of view:
The ramp partially fills your field of view. As you approach some point within your field of view you see further along the ramp, reaching a limit at this point where the entire ramp is visible. Middle case in pic related. You can see the entire ramp. Above this point, you can see the sky.
If the angle of the ramp > your field of view:
The ramp completely fills your field of view. The furthest along the ramp you can see is right at the edge of your field of view, right where your field of view and the ramp intersects. Bottom case in pic related. You cannot see the entire ramp. You cannot see the sky.
