I'm pretty satisfied with the loom and the algebra of the weave. I can make lots of things now way better than Poser's built-in Weave node.

Time to tackle the Tile node and the algebra of tiles.

This pattern (as far as I can tell) is called 4-Clip in the tiling business. Besides the standard ordinary tiles we're used to, it's the easiest one to do I think. Yet the math escaped me for a long time - and I had to figure it out myself because there doesn't seem to be a place to look these up.

It's a lot of Math:Min and Math:Max nodes - 6 so far. If anybody comes up with fewer, let me know. It's an interesting puzzle.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)