With our eyes, and the answer above goes more in depth
I think it for only for film cameras not digital.
Answer: I have a favorite rapper
Explanation:
The drawing technique of using dots instead of lines called stippling. Using lines instead of dots on the other hand is called hatching. Stippling involves placing individual dots across a surface in a pattern that will be identifiable. Individual dots are used to imply the shape, texture, or shadowing of a subject.