Living room, one-point

What to look at

Every receding edge of the furniture goes to the one vanishing point on the horizon.

The sofa top (0.8 m) is below eye level, so its seat is visible; the bookcase top (1.8 m) is above it, so it is not.

The door at 2.1 m is a taller-than-eye-level object: its top edge slopes down toward the vanishing point.

What this scene is for

Use this one when you are drawing a room you can stand in the doorway of: a sitcom living room, a game background, a floor plan turned into a picture. One-point is the right choice whenever a wall faces you squarely, and the furniture here is deliberately ordinary so you can swap a sofa for a bed or a desk without changing a single grid line.

The mistake it settles

The usual wrong turn is putting the vanishing point in the middle of the page and the horizon with it. The horizon belongs at the viewer's eye height, which for a standing adult is around 1.6 m — a little above the middle of a room-height wall, not halfway up the picture. Move the point sideways and the room turns to face you differently; move the horizon and the whole room changes height.

The camera

Measured off this render

Taken from the same camera model the tool draws with, on the 1340 × 754 PNG above.

Draw it from these numbers

1. Rule the horizon across the sheet at 56% of the picture height — 422 px down on this 754 px render. Every other line in the scene is measured from it.
2. One vanishing point, 670 px from the left edge (50% across). Every depth edge runs to it; the faces square to you keep their shape.
3. Set the scale from the 1 × 0.4 × 1.8 m block at 8.8 m: 221 px tall, with 83% of it below the horizon. That share is the camera height divided by the object's height (1.5 ÷ 1.8 m), and it is the same for every object of that height anywhere in the picture.

Open the reference in the tool to move the camera, change the lens, or add your own objects at real sizes; the share link keeps your version. Draw over the PNG at 30–50% opacity in any app with layers.