Draw a box — all 12 edges, drawn through the form. Then hit Check (or press Enter).
Progress
Stroke input
hover an axis
yourscorrected
Perspective
Pick how many of the box's three directions converge to a vanishing point — the rest stay parallel.
Not in 1-point — its front face is square, so there's no Y corner to start from.
Vanishing points are inferred from your strokes — you never place them. Each box's orientation & foreshortening come from its prompt, fresh every round.
First time here
Ghost each line, then commit to it once — no correcting.
Draw all 12 edges, through the form. Hatching is ignored.
Hit Check — every edge is graded on how tightly it converges.