POV-Ray : Newsgroups : povray.general : Request for Mesh 2 sphere Server Time
16 Nov 2024 19:19:44 EST (-0500)
  Request for Mesh 2 sphere (Message 1 to 4 of 4)  
From: Tim McMurdo
Subject: Request for Mesh 2 sphere
Date: 9 Sep 2003 11:05:01
Message: <web.3f5debbb544158a3297c858d0@news.povray.org>
I hope that somebody can help me with this. I need a mesh 2 sphere with a 1
unit diameter. I do not have any software to create this myself. I will use
the sphere to create a twisted rope. Lot's of rope means lots of memory, so
I figure a mesh 2 object will be the best way to go.

Thanks,

Tim


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From: ABX
Subject: Re: Request for Mesh 2 sphere
Date: 9 Sep 2003 11:10:57
Message: <b7rrlvsgf3qjq1199ofjlgo9behv3vf8ol@4ax.com>
On Tue,  9 Sep 2003 11:03:23 EDT, "Tim McMurdo" <jod### [at] wohrrcom> wrote:
> I hope that somebody can help me with this. I need a mesh 2 sphere with a 1
> unit diameter. I do not have any software to create this myself. I will use
> the sphere to create a twisted rope. Lot's of rope means lots of memory, so
> I figure a mesh 2 object will be the best way to go.

Look for HF_Sphere macro in shapes.inc, use flat heigfielt function to create
this sphere and redirrect its output to file as described in manual.

ABX


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From: Tim McMurdo
Subject: Re: Request for Mesh 2 sphere
Date: 9 Sep 2003 11:50:01
Message: <web.3f5df67eaedcd25f297c858d0@news.povray.org>
ABX wrote:

>Look for HF_Sphere macro in shapes.inc, use flat heigfielt function to create
>this sphere and redirrect its output to file as described in manual.
>
>ABX
>


Thank you very much. I had no idea I had these objects available to me. This
is exactly what I was looking for.

Tim


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From: Christopher James Huff
Subject: Re: Request for Mesh 2 sphere
Date: 20 Sep 2003 13:51:14
Message: <cjameshuff-28AA9C.13492620092003@netplex.aussie.org>
In article <web.3f5debbb544158a3297c858d0@news.povray.org>,
 "Tim McMurdo" <jod### [at] wohrrcom> wrote:

> I hope that somebody can help me with this. I need a mesh 2 sphere with a 1
> unit diameter. I do not have any software to create this myself. I will use
> the sphere to create a twisted rope. Lot's of rope means lots of memory, so
> I figure a mesh 2 object will be the best way to go.

It sounds like you want to make many copies of a mesh sphere. This will 
not have any real benefit memory-wise, and will just be slower 
rendering. You should just make the rope out of a mesh. Or make segments 
of the rope out of meshes.

In any case, the height field macros don't give a very good 
tessellation. A better one would be to tessellate the sides of a box, 
and then normalize the points, giving you a unit-radius sphere. You 
could also recursively subdivide a polyhedron, but that gives less 
control over the number of triangles. Also, mesh2 will parse faster and 
produce smaller mesh files, but will not render any differently from an 
ordinary mesh. It is only an alternative syntax.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/


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