The simplest way to change the background is with the background section. You’ll often want to change the background to something other than black if you need a specific background color to match a web page or document’s background color. You will also sometimes want to change the background color if you are unsure where shadows end and the background begins. Changing the background to other than black will more clearly show what part of the image is shadow and what part is nothing.
Often, white is a good color for the background in both of the above cases.
background {
color White
}
Backgrounds cannot have patterns. They must be solid colors. They can, however, be any color. Also, it makes no sense for a background to be transparent, since a background means there is nothing in the scene to show.
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