POV-Ray : Newsgroups : povray.advanced-users : "random" PolyHEDRON Server Time
4 Nov 2024 17:35:24 EST (-0500)
  "random" PolyHEDRON (Message 1 to 3 of 3)  
From: Stewart #7
Subject: "random" PolyHEDRON
Date: 28 Jun 1999 19:51:00
Message: <Pine.LNX.3.93.990628184710.5114A-100000@alien.ufo.net>
I asked this elsewhere with no answer yet...
how can I produce a random PolyHedron - described by
flat polygons, which will appear rounded, rather than 
as flat planes in the final rendering ?


Post a reply to this message

From: Ken
Subject: Re: "random" PolyHEDRON
Date: 28 Jun 1999 20:16:24
Message: <37781010.E19D2CD4@pacbell.net>
Stewart #7 wrote:
> 
>   I asked this elsewhere with no answer yet...
> how can I produce a random PolyHedron - described by
> flat polygons, which will appear rounded, rather than
> as flat planes in the final rendering ?

You  may find inspiration from this newsgroup posting.

Subject:   polyhedral.inc
   Date:   Mon, 15 Feb 1999 19:55:48 -0500
   From: "hall" <tre### [at] ww-interlinknet>
Newsgroups: povray.text.scene-files



-- 
Ken Tyler

mailto://tylereng@pacbell.net


Post a reply to this message

From: Matt Giwer
Subject: Re: "random" PolyHEDRON
Date: 28 Jun 1999 21:37:46
Message: <37782372.1CC9320@giwersworld.org>
>   I asked this elsewhere with no answer yet...
> how can I produce a random PolyHedron - described by
> flat polygons, which will appear rounded, rather than
> as flat planes in the final rendering ?

	I'm not clear what you mean. I don't see how to get to rounded
if you want to start with flat polygons. Maybe a bezier or spline
surface with a n=1.3 fit? (I think that makes sense. It's been a
while.) Bring the edges around to a hidden side or something,
maybe. 

http://www.mhri.edu.au/~pdb/geometry/bezier/beziersurf.html 
http://www.mhri.edu.au/~pdb/geometry/spline/splinesurf.html

	A "rounded" regular polyhedron can be made with the intersection
of three cylinders at right angles. (And it will roll in the real
world.) Try randomizing them around the axis or something and see
if that looks like what you have in mind. 

-- 
<blink>------------------------------------</blink>

http://www.giwersworld.org/artsii/

Finally up on 99/06/22


Post a reply to this message


Attachments:
Download 'us-ascii' (1 KB)

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