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17 Nov 2024 12:21:07 EST (-0500)
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From: Zeger Knaepen
Subject: Cylindrical greebles (+code)
Date: 21 May 2006 13:25:55
Message: <4470a2a3@news.povray.org>
I had to do this with a lot of triangles, because doing it with intersections of 
cylinders was way too slow.

parse time: 17 seconds
render time: 3 minutes 50 seconds

Comments welcome :)

(oh, I also attached an image made with the latest update of the 
polygon-greeble-macro :))

cu!
-- 
#macro G(b,e)b+(e-b)*C/50#end#macro _(b,e,k,l)#local C=0;#while(C<50)
sphere{G(b,e)+3*z.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1;
#end#end _(y-x,y,x,x+y)_(y,-x-y,x+y,y)_(-x-y,-y,y,y+z)_(-y,y,y+z,x+y)
_(0x+y.5+y/2x)_(0x-y.5+y/2x)            // ZK http://www.povplace.com


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Attachments:
Download 'cilinder-greeble.pov.txt' (8 KB) Download 'polygongreebles-update.jpg' (35 KB) Download 'cylinder-greeble.jpg' (64 KB)

Preview of image 'polygongreebles-update.jpg'
polygongreebles-update.jpg

Preview of image 'cylinder-greeble.jpg'
cylinder-greeble.jpg


 

From: M a r c
Subject: Re: Cylindrical greebles (+code)
Date: 21 May 2006 13:36:48
Message: <4470a530@news.povray.org>

news: 4470a2a3@news.povray.org...
> I had to do this with a lot of triangles, because doing it with
intersections of
> cylinders was way too slow.
>
> parse time: 17 seconds
> render time: 3 minutes 50 seconds
>
> Comments welcome :)
>
That's very cooool 8-)

Here is the actual outside of Rama

Marc


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From: Zeger Knaepen
Subject: Re: Cylindrical greebles (+code)
Date: 21 May 2006 13:58:02
Message: <4470aa2a$1@news.povray.org>
"M_a_r_c" <jac### [at] wanadoofr> wrote in message 
news:4470a530@news.povray.org...
> That's very cooool 8-)

thanks :)

> Here is the actual outside of Rama

had to look that one up :-/
seems like just a cylinder, without greebles? :) probably because of the size :)

cu!
-- 
#macro G(b,e)b+(e-b)*C/50#end#macro _(b,e,k,l)#local C=0;#while(C<50)
sphere{G(b,e)+3*z.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1;
#end#end _(y-x,y,x,x+y)_(y,-x-y,x+y,y)_(-x-y,-y,y,y+z)_(-y,y,y+z,x+y)
_(0x+y.5+y/2x)_(0x-y.5+y/2x)            // ZK http://www.povplace.com


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From: Stefan
Subject: Re: Cylindrical greebles (+code)
Date: 21 May 2006 14:30:57
Message: <4470b1e1@news.povray.org>
That is very cool, man :)


>I had to do this with a lot of triangles, because doing it with 
>intersections of cylinders was way too slow.
>
> parse time: 17 seconds
> render time: 3 minutes 50 seconds
>
> Comments welcome :)
>
> (oh, I also attached an image made with the latest update of the 
> polygon-greeble-macro :))
>
> cu!
> -- 
> #macro G(b,e)b+(e-b)*C/50#end#macro _(b,e,k,l)#local C=0;#while(C<50)
> sphere{G(b,e)+3*z.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1;
> #end#end _(y-x,y,x,x+y)_(y,-x-y,x+y,y)_(-x-y,-y,y,y+z)_(-y,y,y+z,x+y)
> _(0x+y.5+y/2x)_(0x-y.5+y/2x)            // ZK http://www.povplace.com
>
>
>


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From: Slime
Subject: Re: Cylindrical greebles (+code)
Date: 21 May 2006 16:23:12
Message: <4470cc30$1@news.povray.org>
That's really good. The texture is so fantastic, though, that I wonder how
good the greebles would look without it.

 - Slime
 [ http://www.slimeland.com/ ]


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From: Sven Littkowski
Subject: Re: Cylindrical greebles (+code)
Date: 21 May 2006 16:40:28
Message: <4470d03c@news.povray.org>
When are you starting to build your first Battlestar Galactica?

Your greebles are so perfect, meanwhile, that they can make out of simple 
shapes complete full detailed and - most important - very impressive 
battleships!

Zeger, I have started to develop space guns for battleships, please see the 
images inside the thread "SF: Preview 11+: Imperial Carrier". If you like, 
you could have your macro adding them on top of the low cylinders of your 
greeble. Let me know.

Greetings,

Sven


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From: Zeger Knaepen
Subject: Re: Cylindrical greebles (+code)
Date: 21 May 2006 17:42:18
Message: <4470deba@news.povray.org>
"Sven Littkowski" <sve### [at] jamaica-focuscom> wrote in message 
news:4470d03c@news.povray.org...
> When are you starting to build your first Battlestar Galactica?

oh, I'm having way too much fun creating the macros at the moment :)  
Next stop: changing cylindrical greebles into conical greebles. After 
that, it's time for spheres :)
oh, and I'll probably rewrite parts of the polygon-version, also using 
triangles, so it'll render faster
 
> Your greebles are so perfect, meanwhile, that they can make out of 
simple 
> shapes complete full detailed and - most important - very impressive 
> battleships!

:) thank you !
 
> Zeger, I have started to develop space guns for battleships, please 
see the 
> images inside the thread "SF: Preview 11+: Imperial Carrier". If you 
like, 
> you could have your macro adding them on top of the low cylinders of 
your 
> greeble. Let me know.

should be possible, but I think it would be better to have a seperate 
(set of) macro(s) for doing things like that

cu!
-- 
#macro G(b,e)b+(e-b)*C/50#end#macro _(b,e,k,l)#local C=0;#while(C<50)
sphere{G(b,e)+3*z.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1;
#end#end _(y-x,y,x,x+y)_(y,-x-y,x+y,y)_(-x-y,-y,y,y+z)_(-y,y,y+z,x+y)
_(0x+y.5+y/2x)_(0x-y.5+y/2x)            // ZK http://www.povplace.com


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From: Zeger Knaepen
Subject: Re: Cylindrical greebles (+code)
Date: 21 May 2006 17:42:40
Message: <4470ded0$1@news.povray.org>
"Slime" <fak### [at] emailaddress> wrote in message 
news:4470cc30$1@news.povray.org...
> That's really good.

thank you!

> The texture is so fantastic, though, that I wonder how
> good the greebles would look without it.

well, I attached the source with the image, so you can try it out for 
yourself :)
Actually, first I wanted to post a version without the texture, but 
although it looked good (imho), it looks 10 times bigger with the 
texture

cu!
-- 
#macro G(b,e)b+(e-b)*C/50#end#macro _(b,e,k,l)#local C=0;#while(C<50)
sphere{G(b,e)+3*z.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1;
#end#end _(y-x,y,x,x+y)_(y,-x-y,x+y,y)_(-x-y,-y,y,y+z)_(-y,y,y+z,x+y)
_(0x+y.5+y/2x)_(0x-y.5+y/2x)            // ZK http://www.povplace.com


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From: Zeger Knaepen
Subject: Re: Cylindrical greebles (+code)
Date: 21 May 2006 19:50:32
Message: <4470fcc8$1@news.povray.org>
"Stefan" <azy### [at] hotmailcom> wrote in message 
news:4470b1e1@news.povray.org...
> That is very cool, man :)

tnx :)


-- 
#macro G(b,e)b+(e-b)*C/50#end#macro _(b,e,k,l)#local C=0;#while(C<50)
sphere{G(b,e)+3*z.1pigment{rgb G(k,l)}finish{ambient 1}}#local C=C+1;
#end#end _(y-x,y,x,x+y)_(y,-x-y,x+y,y)_(-x-y,-y,y,y+z)_(-y,y,y+z,x+y)
_(0x+y.5+y/2x)_(0x-y.5+y/2x)            // ZK http://www.povplace.com


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From: David Brickell
Subject: Re: Cylindrical greebles (+code)
Date: 22 May 2006 01:22:11
Message: <44714a83$1@news.povray.org>
Zeger Knaepen wrote:
> I had to do this with a lot of triangles, because doing it with intersections of 
> cylinders was way too slow.
> 
> parse time: 17 seconds
> render time: 3 minutes 50 seconds
> 
> Comments welcome :)
> 
> (oh, I also attached an image made with the latest update of the 
> polygon-greeble-macro :))
> 
> cu!
> 

Excellent work.

They could both pass as space ships already. The texture and lighting 
really add to the feel of it.

How many different types of greeble are used?

Dave.


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