References / Curvilinear
Room in fisheye
Sofa, table, door and a figure inside a 180° fisheye view of a room.
Open in the Curvilinear 5 & 6-Point GridDownload PNGLesson: Curvilinear Perspective Explained: 4, 5 & 6-Point Drawing
What to look at
Every straight edge is an arc; only the line through the centre of view stays straight.
The whole room fits: floor and ceiling in one picture, which no flat grid can do.
The figure near the edge is bent, not stretched; compare the 20 mm alley.
The camera
| Lens | 180° angle of view (curvilinear) |
| Camera height | 1.5 m above the floor (standing) |
| Rotation | 20° to the scene's axes |
| Tilt | 8° down (three vanishing points) |
| Objects | box 2 × 0.9 × 0.8 m · box 1.2 × 0.6 × 0.45 m · box 0.9 × 0.1 × 2.1 m · figure 1.75 m |
| Floor | 1 m squares |
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.