Tor Olav Kristensen <tto### [at] onlineno> wrote in message
news:39AAE38B.A57CEA91@online.no...
>
> Alf Peake wrote:
>
> > (3rd repost, seems I can only reply to my original post)
> >
> > Subject: ReDragonfly revisited 39k
> > Date: 25 August 2000 20:54
> >
> > Tor Olav Kristensen <tto### [at] onlineno> wrote in message
> > news:39A45056.32E778EF@online.no...
> > >
>
> > > There seems to be some problems with the attachment of the
> > > rear wings to the body.
> > Yes, its that blob / camera angle thingy again. Same sort of thing
> > happens with 'lipsoids. I also lose the shadow with some angles.
> > The jpeg shows a close up, camera over left wings, (leading edge
to
> > the left) all other objects removed, tail would be to the right.
The
> > left 2 sections are opaque, no photons, with camera <0,4,-4> and
the
> > right one is clear with photons and camera <0,5,-3>. Note the
right
> > pair of wings do not connect in this one :(
>
> I wasn't aware that there were such problems with blobs.
> Is it a photons-only error, or can it happen to me in standard POV
> as well ?

Happens with me in dos versions of pov3.1g and megapov 0.4
Will post a piece in p.t.s-f  (Dragnfly1.pov)

>
> What are 'lipsoids in POV-ray ?

Superellipsoids. Sorry, my bad habit of shortening words.

>
>
> > See also a larger version, 88k,  of the pic I uploaded here in
March:
> >
> > http://www.peake42.freeserve.co.uk/pix1/dragnfly.jpg
>
> May I ask how you generate that Fibonacci stuff ?
>
> I have a vague memory of a Golden Ratio between the
> number of right turns and the number of left turns (?)

Check this, amongst others, explains better than I can:
http://www.mcs.surrey.ac.uk/Personal/R.Knott/Fibonacci/fibnat.html
and look for my GoldnRatio in p.b.i later, with source in p.t.s-f

>
>
> Tor Olav
> --
> mailto:tor### [at] hotmailcom
> http://www.crosswinds.net/~tok/tokrays.html
>

Alf

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