A cute filter that creates interesting tartan patterns.
Make a large wide and deep selection box, with a bit of height (play around). Select the colours you want, and run the filter. Result: Fabric!
The separate layers of thread are stacked at the bottom of the selection box, and the integrated fabric is on top. This filter uses sinusoidal functions to work out which thread type to place at each location, so the result is highly regular but with some variation to keep it interesting.
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