William F Pokorny <ano### [at] anonymousorg> wrote:

> IIRC, it's y' (slope) in the upper right. The bottom row being
> arc length, t and angle.

Ah, they are graphs.   Got it.

>  With the
> first two, I'd lean toward adding them as additional splines(a). It
> might be hgpovray38 has these - it supports many additional splines.

But then I'm trapped by the restriction of only using those with in a spline
keyword block.  Better would be to allow spline {} to take any function as a
spline definition (whether it would make sense to from a spline perspective or
not).

> The f_voronoi() inbuilt is on my list (with additional metrics). The
> hgpovray38 fork has already some of the voronoi with specified vertices
> functionality already too.

It's still a challenge (for me) to return a result of "I am in cell 'N', closest
to seed 'n' " rather than just returning the seed-ignorant value of the distance
to the nearest seed.
That seems to lie firmly in the realm of
under-the-hood-algorithm-masquerading-as-a-function.


As always much interesting stuff to think about, and fun stuff to play with.
RL is being a real bugger lately, so not much povving has been done.

- BW

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