What happens when two kids attempt to play with the same toy? That's right — they fight for it. The same happens in the 3D rendering. Z-fighting occurs when two polygons of different colors overlap in the same location on the Z-axis and fight for who will color screen pixels. It results in flickering, noisy, and blurry images. The easiest solution with "fighting" polygons is the same as with bratty kids — move them apart.^[1]