horizon = eye level
VP
1 · Horizon
2 · Vanishing point
3 · Front face
4 · Rays + back
Step 1 — rule a
horizon
across the page at the eye level you want.
← Back
Next move →
Depth
Step through the four moves. From step 3 you can
drag the front face
to move it and drag the little
square
to resize it; the box rebuilds itself toward the vanishing point.