/ic/ - Artwork/Critique

>>2867037
Why 2 and 3 point perspective is so useful is because we all live on a flat plane (it looks flat from where you're standing) and most things like buildings and people are all on this flat plane. This means that all parallel lines that are the same as the parallel lines that point to the horizon than all those parallel lines will also point to the horizon.

The human mind only really needs to see atleast 3 points in perspective to see something as 3d (3 dimensions, 3 point)
1) x axis, horizontal
2) y axis, vertical
3) z axis, forward and back
But the point is all parallel lines converge at a vanishing point and depending on the number of parallel line sets you have that determines the number of vanishing points.

So say you have a box floating in space and you want to draw another box somewhere else facing the exact same direction but you don't know what direction to draw the lines
Take the box you already have and extend the lines until they reach a convergence point (the vanishing point)
You can then take this point and draw lines out from it to roughly where you want your new box to be and you can be certain that these two lines (the new box's lines and the old box's lines) will be parallel and thus the boxes will be facing the same direction