Today I will show you how to turn a circle into a 3-dimensional sphere, ball, or orb. In order to turn a circle into a sphere, you will need to use specific shading techniques to accomplish this. In this tutorial, I use graphite pencils, H, 2B, 3B, and 4B. This lesson will help you learn how to shade a beautiful sphere.
Here is a basic guide to using geometric shapes, such as the cube, cylinder, sphere, pyramid, and cone to draw things you see in every day life.
Here is a drawing lesson from an old textbook discussing how to draw a ball or sphere inside a bowl. This tutorial centers on adding the shadows in and shading graduation in order to make a realistic looking drawing.
How to Draw a Sphere or Ball inside a Bowl – Shading and Adding Shadows Tutorial
Draw the three concentric circles, representing respectively the edges of the bowl and the, outline of the sphere. The arrow shows the direction of the rays of light. Consequently, the high lights will be on the sphere at the point marked o, in the bowl at G, and on the edge at J. The line AB, joining the extreme points of the shadow thrown within by the bowl ; the line CD, joining the points of the shadow thrown without by the bowl; and EF, joining the edges of the shade on the sphere, are at right angles to the direction of the rays of light. The line OG nearly bisects the cast-shadows.