Truchet tiling is a staple of the shader community - https://www.shadertoy.com/results?query=Truchet

A particularly nice example - https://www.shadertoy.com/view/4td3zj

And a nice '3D' one - https://www.shadertoy.com/view/4lSBzm

Using multi-level Carlson Truchet tiles for half-toning images: https://nedbatchelder.com/blog/202208/truchet_images.html

some truchet tiles i did for a plotter a million years ago:

hex:

https://www.instagram.com/p/B2TRmM7p1BB

https://www.instagram.com/p/B2Q130pJwum

rectangular:

https://www.instagram.com/p/BxUMO05p3Cx

https://www.instagram.com/p/BxO1H3cJ57V

Reminds me of this, created by one of the tailwind guys: https://heropatterns.com/

These are really useful for subtle background patterns on footers etc.

These are also good to avoid tiling textures having a https://en.wikipedia.org/wiki/Moir%C3%A9_pattern. Just do a randomized labyrinth per square and voila.

We have this card-tiling game based on this idea.

https://www.ravensburger.us/en-US/products/games/thinkfun/iz...

It's not a great game, but it's fun enough. The box is small, so we keep it around even if we don't play it much.

8-Bit Show and Tell recently did a video about Truchet Tiles on PETSCII. Fun watch:

https://www.youtube.com/watch?v=MVQJykMJSH0

I use a lot of truchet tiles in my art (https://andrewwulf.com), but I color them afterwards, which seems fairly uncommon (article from last year, https://thecodist.com/my-art-and-color-after-tiling/) outside of shaders. I focus on 2d art for print. I also use various combinations of 1x1, 1x2, 2x2, 3x3 and 4x4 tiles, sometimes all in one work.