"Bald Eagle" <cre### [at] netscapenet> wrote:
> "Bald Eagle" <cre### [at] netscapenet> wrote:
>
> > Now posted:
> > https://wiki.povray.org/content/User:BillW
>
> I had sent a copy of this to Freya Holmer for review and comments, didn't hear
> anything back, and that apparently got developed into a video on the channel.
>
> https://www.youtube.com/watch?v=aVwxzDHniEw&pp=ygUGYmV6aWVy
>
> There were one or two things at the end of the video that went beyond what I
> covered, which I found very interesting.
>
> After I recovered from overexertion / burnout, I picked up a major dangling
> thread that I really wanted to wrap up, and worked out how to encode the
> curvature of the surface into a pigment:
>
>
https://news.povray.org/povray.advanced-users/thread/%3Cweb.635dc186688805b11f9dae3025979125%40news.povray.org%3E/
>
> I think that there's probably a CAD/CAM program out there that would allow the
> modeling of at least Bezier _splines_ in 3D, and if you just snap/glued the
> appropriate control points of the splines together, you might be able to use
> that as a wireframe mesh modeler.  Try FreeCAD.
>
> You might also directly contact Freya and ask about such a piece of software,
> and see if that might be a project that could get coded in Unity or something.
>
> Also, there's the possibility of making/finding something on Shadertoy, Desmos,
> or javascript.
>
> https://www.desmos.com/calculator/ebdtbxgbq0
>
> Sketchup:
> https://community.sketchucation.com/topic/100775/plugin-bezier-patch-v1-1?lang=en-US
>
> https://sourceforge.net/projects/digitalorigami/
>
>
> Ucalgary has an editor that apparently needs permission to access.
> Perhaps contact them and see what they say.
> pages.cpsc.ucalgary.ca
> Bezier Surface Editor
>
> patches can exist sepatately, or joined with various levels of continuity. All
> the work is done in a single view which can be rotated about the xy-axes to view
> and edit the surface from any angle.
>
> https://visualizationlibrary.org/docs/2.0/html/pag_guide_bezier_surfaces.html
>
> Try GameDev, StackExchange, StackOverflow, Sebastian Lague YT channel, or anyone
> else that uses povray / does computer graphics coding.

I appreciate the write-up as well as all those other resources, plenty to dig
into! I have looked at FreeCAD before and it seems that it can only produce
NURBS surfaces, though combining separate splines sounds does sound like an
interesting possibility.

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