1 Mar 2021, 08:54

@Only-The-Real-Survive hello - your drawing is looking good! the horizon line is a constant and does not change or a better way to put it is it represents our eye level so if our eye level changes the position of the horizon line changes. Vanishing points can be anywhere ... they do not have to hit the horizon but are relative to it when constructing drawings using perspective - if the guitar were laying down on its back and we made a box around it the 2 vanishing points of the box would hit the horizon line - if you draw a line straight up from where the construction lines meet the horizon line you will have a line that represents where the new vanishing points would be if you change the axis of the box.... if we lift up one end of the box you would still have the bottom edge that is on the ground having the same vanishing point it did before when it was laying flat(as long as that is the axis and the box is not tilted left or right also) the other vanishing point has risen above the horizon line though .. but it will be on that straight line we drew earlier ... so basically a vanishing point can end up anywhere but the horizon line stays the same....this is probably very confusing to read... I’ll try to upload a drawing 🙂

EDIT: o.k. here is a quick sketch of what i was trying to explain...maybe David Hohn will jump in on this he is awesome with perspective and could probably explain it much better

2nd Edit: I just saw that you you did not make the drawing ..sorry ..I missed that 🙂

IMG_4369.JPG