POV-Ray : Newsgroups : povray.binaries.images : [POV-Ray 2.2] Dream Dreams : Re: [POV-Ray 2.2] Dream Dreams Server Time
10 Dec 2024 06:32:59 EST (-0500)
  Re: [POV-Ray 2.2] Dream Dreams  
From: Bald Eagle
Date: 16 Nov 2024 08:20:00
Message: <web.67389b42364c1c7c1f9dae3025979125@news.povray.org>
William F Pokorny <ano### [at] anonymousorg> wrote:

> IIRC, Bald Eagle (Bill Walker) had a write up for the feature a few
> years ago which might help.

The monograph covers the basics of how Bezier surfaces are constructed, along
with the practical aspects of using them in POV-Ray.  Things like uv_mapping and
using Bernstein polynomials to locate points that are actually on the surface of
the patch - rather than the intermediate control points which do not coincide
with the surface.

> He, in fact, taught me how it was actually
> working - as opposed to how I thought it was working!

Wow.   Thanks Bill.  It did take me a bit longer than I expected to sift through
all of the features, do the code experiments, and try and get it all to flow and
make sense.

> I have early
> versions of the document somewhere, but I'm unsure if it was posted
> anywhere public.

Now posted:
https://wiki.povray.org/content/User:BillW

- BW


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