I finally figured out how to get a somewhat organic looking line and allow that to seed other lines.
The approach I had earlier was close, but not quite close enough.
It was based on messing with a sinusoidal enough to try to get traces that would approximate Jen Stark's piece.
By Jen Stark -> http://www.jenstark.com
But the algorithm was flawed and it took me a week in a half to get something working. This morning around 4:30am I woke up to breed some cryptokitties and followed that sesh up with a decent algorithm to get me heading in the right direction.
Here's the idea. I need to get the plot to wander in one general direction. Then turn around if it gets to far up or down the y-axis. It kind of behaves like a sinusoidal, but much dirtier.
Algorithm:
This is the heart of the new concept. Here are some results after playing with the variables.
Moved colors out to the outer loop. I don't like this as much as the original.
Oops! I tried adjusting the step to make the loops move faster, I cut out too much. This looks like a music album cover.
Set the variable in the modulus if statement equal to the inner index
While there is still more tinkering to do, I am happy it is beginning to get closer.
Link: https://github.com/hizzvizz/Textures/blob/1.0/texture1.5_og.html
Screenshot while I am logged in: