So, it was good that I revisited this, as there were some corrections I needed
to do, and the bozo pattern was pretty bad at showing what I wanted.

Here's an animation of a rolling sphere - the sphere travels through a long box,
and the coloration of the intersection of the sphere and box is determined by
the r, g, and b values calculated from the values of the agate pattern at each
point and converted to a [correct] HSV spectrum.

I hope you like it, and if you provide more of a description of what you're
envisioning, that would make implementing it much more straightforward.  :)

(this is at 15 frames / sec - I can do it at 5 as well, but this looks much
smoother)

Back to work tomorrow   :(   but the heat has broken (for now) and hopefully the
rest of the week goes smoothly.
Hope everything is going well for you IRL.

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