Draw a smaller square "inside" those lines to cut off the back of the box.
Parallel lines (like railroad tracks) seem to touch as they hit the vanishing point. Basic Perspective Drawing: A Visual Approach
Always start with a light touch. These construction lines (orthogonals) are usually erased once the final shape of the object is defined. Draw a smaller square "inside" those lines to
In , lines lead to two separate points on the far left and right. 3. Orthogonal Lines (The "Receding" Lines) Basic Perspective Drawing: A Visual Approach
This is a specific point on the horizon line where parallel lines appear to meet and disappear.
In , all lines that go "back" into space lead to a single point.
Use a ruler to connect the corners of that square to the dot.