Fill patterns can be used to put a noticable texture inside a polygon. A fill pattern can be defined in an m x n array and pixel (x,y) is assigned the value found in
For bitmapped displays, fill patterns with different fill densities can be used to vary the range of intensities of a polygon. The result is a tradeoff of resolution (addressability) for a greater range of intensities. This is called halftoning. The pattern in this case should be designed to avoid being noticed.
These fill patterns are chosen to minimize banding.
