Fundamentals: horizon line / eye level and vanishing points
Set eye level with a horizon line and align receding edges to vanishing points in perspective drawings.
What it is
The horizon line represents your eye level across the page. It rises or falls with the viewer's position. Features at eye level, such as a person's eyes or a tabletop viewed straight across, align with it.
Vanishing points are locations where parallel lines appear to converge. Edges that share a direction in the scene, such as road edges, tile rows, or window edges, lead toward the same vanishing point.
Place the horizon line and vanishing points for the scene's main directions. As you construct boxes, buildings, or furniture, guide receding edges toward the matching vanishing point. Points may sit beyond the page, so use extended guides to maintain alignment.
Why it matters
A consistent horizon line and shared vanishing points help objects relate to the viewer and to each other. Weak control can cause surfaces to tilt inconsistently, walls and floors to disagree, or figures and backgrounds to appear on different ground planes.
You can check it when
- ✓Identify the eye level in a photo or life scene and sketch a horizon line that matches it.
- ✓Overlay guides on a photo and extend parallel edges to locate the horizon line and vanishing points.
- ✓Extend receding edges in your perspective sketches and check whether shared directions meet at consistent vanishing points on or near one horizon line.
- ✓Draw the same simple scene from high, middle, and low eye levels, then check whether the horizon and object proportions change with each viewpoint.