POV-Ray : Newsgroups : povray.binaries.scene-files : Making functions for natural cubic splines : Re: Making functions for natural cubic splines Server Time
6 May 2024 03:28:02 EDT (-0400)
  Re: Making functions for natural cubic splines  
From: Bald Eagle
Date: 18 Oct 2014 11:10:00
Message: <web.544281a35b2bbe7b5e7df57c0@news.povray.org>
"Tor Olav Kristensen" <tor### [at] TOBEREMOVEDgmailcom> wrote:

I did not look at those - too many things going on all at the same time, lol.

I did manage to work it out fairly closely - but this ought to help get it
working a lot better without having to plot so many cylinders.
I thought blobbing them all together would help - but I noticed some strange
behaviour.  threshold 0 gave me a web-like fill, and then raising it to 0.1 gave
me a much fuller effect.

I still need to work out a method for the upholstery "tufting", if I decide that
would add enough to be worth the effort.  :)

> I suggest that you make your own sphere sweeps with these functions (with
> "connected" spheres, cylinders and cones if the spheres radii varies).
> That way there's no need to "recover" the t-values afterwards.

So, make a third array with the diameters, and interpolate the intermediate
values...

That could be an interesting thing to experiment with - I suppose there's no
limit to the number of additional arrays - for color, texture, normals, etc.


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.