Somewhat like lenticular distortion, moiré patterns are a simpler version of a visual distortion when fields parallel lines intersect. This is a simple black and white example.
Moiré patterns or moiré fringes are large-scale interference patterns that can be produced when an opaque ruled pattern with transparent gaps is overlaid on another similar pattern. For the moiré interference pattern to appear, the two patterns must not be completely identical, but rather displaced, rotated, or have slightly different pitch.
Wikipedia.org
Line Thickness: 1
Rotation: 0.0