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It is difficult to paint round forms and make them realistic, because of the large number of small value changes on the object. If you try to represent these value changes by blending, it is easy to lose the sense of form. Too much blending also destroys the color. To solve this problem, practice painting round forms by squaring off the form first.
Quick technique to paint round forms
Take a round form, such as a piece of fruit or vegetable, and cut it with a knife to remove the peel. Cut it in such a way that you replace all the curved surfaces by a series of planes. You can then assign the various types of light to each of these planes.
Student example: paint the round form of an apple
More student examples: paint round forms
Once you have mastered how to paint a form that you can cut into to see the planes, try to imagine the planes are there without cutting the object. After a lot of practice you will be able to paint more realistic looking round forms.
As you get more accomplished at painting round forms, you can apply the same principle to a more complex form, such as a flower, a cup, rocks on the beach, or even heads.
To learn more about painting round forms
To learn more about how to make your forms appear three-dimensional and realistic using the square off forms technique, see the lessons in the Form Building Block in the Virtual Art Academy Apprentice Program.
Thank you for taking the time to read this article. If you are interested in a structured approach for learning how to paint, and want to learn more about my Visual Music & Poetry® model, take a look at my online painting classes.
Barry John Raybould
Virtual Art Academy