Moiré pattern

A pattern that emerges when two grids are superimposed over one another.

Examples:

* Post #1436922: [[Scan artifacts]], interference between [[halftone]] screen in the original image and scanner samples.
* Post #2558106: Resizing artifacts, interference between [[halftone]] grid and pixel grid.
* Post #2765030 (music staff), post #4309196 (fabric pattern), post #1184284 (block texture): lack of anti-[[aliasing]].
* Post #2033517 (click "view original"): intentional easter egg.

h4. External links

* "Wikipedia":[https://en.wikipedia.org/wiki/Moir%C3%A9_pattern]
モアレ モワレ