Think of tags as like a book index where you find words and which pages they are on, the same principle applies here. Although it's taken a stage further so it might not be the word, but the subject, so for example if you're looking for things to do with fractal gradients for example. A tag may bring back posts with gradient files, as well as posts that discuss gradients, or tutorials about them.

Waves group sample variation wavesn


Variations that add waves to x, y, and/or z. There are a lot of different variants on this theme, differing in the parameters available and how they are applied.

Blobs group flower db variation sample


These variations deform the plane by pinching it towards the origin, making a blob-like shape. The math is similar to that of rose curves, but these are standard variations, not blurs.