Spiral Border

Trying to get something like this:

Using the Solid Fill mode technique as seen in both:
Cell Area
Local Vortecies

So far, I have this:

Looking to further this along the lines of:

http://en.wikipedia.org/wiki/Navierâ€...Turbulence

So, I have 3 goals:

1. To get the bulge smoothed between the spirals (using the above ffxml attachment), so that the 2nd graphic looks like the 1st with respect to the transition between spirals

2. To be able to 'squarify' the same filter to achieve the 3rd graphic with respect to the general squared morphology. I know about masking and coloring, etc.

3. To then be able to move beyond the square grid of vortex centers and have a smooth iterative flow. Thinking about smoke stream eddies.

#2

Having some fun altering the boundaries for some ornamentation though:

Undulating areas more clear to see in the 'squarified' version:

oh, and if the ffxml examples are unloadable, they were made in FF4.0 Beta 1&2.

That method is great for constant connected spirals.

The logic for the tint color was so that there would be counter rotation and amplitude differences based upon the distance from the center line. Thinking ahead about fluid dynamics emulation (a crude example):



Strangely using the bomber is 67% faster than using a blend(multiply) method.

This might be one of those problems that can't be solved without relaxation of splines or something. See how noticeable the abrupt transition is on the loosely would spirals on the left? My only idea is to do an offset at the intersection points.

Case closed I think! Thank you CFandM!

Sea Scrolls
http://www.filterforge.com/filters/11851.html