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.
It started off when I was looking at the glynnsim3 code trying to alter the shape when I realized a similar thing could be recreated using 2 or 3 xforms with linears and post_smartcrops. This setup, although more complicated, allows much more customization than just using a glynnsim3 on its own.
Not much to say here except, I like starting with blur3d then adding a transform with a spherical followed by a split border in this case. Then a julia transform and a final hypertile to get everything repeated across the screen.
The glynnSim variations are a cross between linear and spherical. Using the unit circle as a dividing line, their output has three parts:
Outside the unit circle is whatever was there before (like linear),
Inside the unit circle is a reflection across the unit circle of what was outside the unit circle (like spherical), and
The points that were inside the unit circle are replaced with a blur:
Posted a flame as a starter that I did about a year ago, the idea to take the parameters, paste them into your JWildfire, and you can only change one variation. You can of course, alter other settings too, but one variation change only. Here’s another spherical added for more roundness.