Form & light · 2 of 4 · 6 min
Cylinder, cone, sphere
Once the box is honest, the other solids are sections of it. The ellipse is the hard part, and you already know its rule.
- 1
Cylinder
Two ellipses and two sides. The sides are vertical if the cylinder is. The top ellipse is flatter than the bottom one when both sit below your eyes.
- 2
Cone
The sides leave an apex and meet a base ellipse. They touch the ellipse at its sides — they do not cross it.
- 3
Sphere
The outline is a circle. The thing that makes it a sphere is the terminator, an ellipse of shadow, not a second outline.
Critique
Drill
Redraw each solid. Check the cylinder: rim flatter than base.