POV-Ray : Newsgroups : povray.binaries.animations : Playing with matrix transforms : Re: Playing with matrix transforms Server Time
12 Feb 2025 05:44:28 EST (-0500)
  Re: Playing with matrix transforms  
From: ingo
Date: 31 Jan 2025 10:10:00
Message: <web.679ce6fd28e9993417bac71e8ffb8ce3@news.povray.org>
"Bald Eagle" <cre### [at] netscapenet> wrote:

> I know that clipka was talking about trying to find as much common ground for
> all of the primitives as possible, so that we could have as few specialized
> objects/data structures as possible, so perhaps it would good to look at a lot
> of the spline/interpolation code as matrix-based.

There are a few fun things one can do with the matrix based spline calculations.
One can blend two spline matrices to a new spline, or over time morph from one
spline to an other spline type. But one needs access to POV-Ray's internals
then.

The whole spline matrices thing is covered here:

http://web.archive.org/web/20151002232205/http://home.comcast.net/~k9dci/site/?/page/Piecewise_Polynomial_Interpolation
/

Download the book PDF and the separate appendix.

ingo


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