POV-Ray : Newsgroups : povray.binaries.images : Extrusion Sample Server Time
19 Nov 2024 18:10:01 EST (-0500)
  Extrusion Sample (Message 1 to 8 of 8)  
From: Philippe Gibone
Subject: Extrusion Sample
Date: 4 Oct 2003 04:33:45
Message: <3f7e85e9@news.povray.org>
Hi,
This is a test sample for an extrusion macro (or at least a macro template).
Here it is a cross-shape which is extruded along a path around a torus.
Not shown here, the amcro allows the shape to vary in size according to the
path geometrical properties.

Comments ?

pgb


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Attachments:
Download 'ExtrusionSample.jpg' (18 KB)

Preview of image 'ExtrusionSample.jpg'
ExtrusionSample.jpg


 

From:
Subject: Re: Extrusion Sample
Date: 4 Oct 2003 04:47:34
Message: <noe.falzonPASDEPUB-F53FB4.10484004102003@netplex.aussie.org>
In article <3f7e85e9@news.povray.org>,
 "Philippe_Gibone" <Ph.### [at] wanadoofr> wrote:

> Hi,
> This is a test sample for an extrusion macro (or at least a macro template).
> Here it is a cross-shape which is extruded along a path around a torus.
> Not shown here, the amcro allows the shape to vary in size according to the
> path geometrical properties.
> 
> Comments ?
> 
> pgb
> 
> 
> begin 666 ExtrusionSample.jpg
> [Image]
> 
> end
> 


That's nice ! Does your macro create copies of your initiale shape all 
along the path, or is it a way to calculate the shape of the final 
object ?


-- 
"Je ne deteste que les bourreaux" -- Albert Camus



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From: Philippe Gibone
Subject: Re: Extrusion Sample
Date: 4 Oct 2003 04:57:26
Message: <3f7e8b76@news.povray.org>
> That's nice ! Does your macro create copies of your initiale shape all
> along the path, or is it a way to calculate the shape of the final
> object ?
>




The extruded shape is a 2D shape, the macro creates a mesh2 using the points
on the moved shape, so I would say it is a way to calculate the shape of the
final  object
But I will have an other answer in a few days (or weeks) because I want to
use the same macro (90% of it anyway) to move an object along a path, not to
create an other object like solid sweeps would, but for instance to place an
object (people) at the right place, with the right orientation at different
time of a walk along a path (don't know if i'm clear, my english is very
lousy)

pgb


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From: None
Subject: Re: Extrusion Sample
Date: 4 Oct 2003 10:50:09
Message: <Xns940A6E3D4E987None@204.213.191.226>
"Philippe_Gibone" <Ph.### [at] wanadoofr> wrote in
news:3f7e8b76@news.povray.org: 

> [...]
> The extruded shape is a 2D shape, the macro creates a mesh2 using the
> points on the moved shape, so I would say it is a way to calculate the
> shape of the final  object

Wow, impressive, I like it a lot.


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From: JC (Exether)
Subject: Re: Extrusion Sample
Date: 6 Oct 2003 02:49:54
Message: <3f811092$1@news.povray.org>
Interesting tool.
I even suppose that render times are quite good, especially if you save 
the generated mesh.

JC

Philippe_Gibone wrote:
> Hi,
> This is a test sample for an extrusion macro (or at least a macro template).
> Here it is a cross-shape which is extruded along a path around a torus.
> Not shown here, the amcro allows the shape to vary in size according to the
> path geometrical properties.
> 
> Comments ?
> 
> pgb
> 
> 
>


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From: ABX
Subject: Re: Extrusion Sample
Date: 6 Oct 2003 03:22:30
Message: <jo52ov05e54ctdcnq3iah7qkjsh4at1brs@4ax.com>
On Sat, 4 Oct 2003 10:34:17 +0200, "Philippe_Gibone" <Ph.### [at] wanadoofr>
wrote:
> Here it is a cross-shape which is extruded along a path around a torus.

For those interested, there is similar macro in isocsg library for making such
isosurface for further displacements. Here is a link to the manual:
http://www-public.tu-bs.de/~y0013390/pov/ic/docu02.html#Shaped_Torus
IC_Shaped_Torus_Spline() is also under development (but delayed 'a little')
http://news.povray.org/povray.binaries.animations/32078/227007/isotorspline.mpg

ABX


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From: Philippe Gibone
Subject: Re: Extrusion Sample
Date: 6 Oct 2003 12:57:15
Message: <3f819eeb@news.povray.org>
The mesh is not saved, but no problem with rendering time, even with my old
P2 at 450 Mhz, for the image you've seen, the parsing time which includes
the generation time is 37sec for 5000 vertices.

pgb


news:3f811092$1@news.povray.org...
> Interesting tool.
> I even suppose that render times are quite good, especially if you save
> the generated mesh.
>
> JC
>
> Philippe_Gibone wrote:
> > Hi,
> > This is a test sample for an extrusion macro (or at least a macro
template).
> > Here it is a cross-shape which is extruded along a path around a torus.
> > Not shown here, the amcro allows the shape to vary in size according to
the
> > path geometrical properties.
> >
> > Comments ?
> >
> > pgb
> >
> >
> >
>


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From: Philippe Gibone
Subject: Re: Extrusion Sample
Date: 6 Oct 2003 13:00:07
Message: <3f819f97$1@news.povray.org>
> For those interested, there is similar macro in isocsg library for making
such
> isosurface for further displacements. Here is a link to the manual:
> http://www-public.tu-bs.de/~y0013390/pov/ic/docu02.html#Shaped_Torus

Not similar at all, the extrusion is not along a circle, but along a path
cycling around a torus, and it is only as a sample of a more general macro.

> IC_Shaped_Torus_Spline() is also under development (but delayed 'a
little')
>
http://news.povray.org/povray.binaries.animations/32078/227007/isotorspline.mpg

This one may be quite similar

pgb


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