POV-Ray : Newsgroups : povray.binaries.images : primitive and hairy Server Time
12 Aug 2024 07:24:55 EDT (-0400)
  primitive and hairy (Message 1 to 7 of 7)  
From: Florian Brucker
Subject: primitive and hairy
Date: 1 Nov 2003 09:16:17
Message: <3fa3c031@news.povray.org>
I started to work on a couple of macros for mesh-primitive-output. 
They got almost the same syntax as normal POV-primitives, but the 
output - meshes. Together with the inbuild PCM-Output-support it is 
now finally possible to use all those nice macros from Chris Colefax 
and Doug Eichenberg on primitives. The only drawback is that you can't 
use them in CSG (well, aside from union of course). But I think it's 
still nice and comes in handy for my next project. Here's an early 
image using Chris Colefax' hair macro, it took 6 hours on my Athlon 
600/256 MB (time to upgrade that thing). I would have used Doug's 
macros but they took even longer... Radiosity setting is as poor as 
possible (Radiosity_Debug from rad_def.inc), but I hate to wait :)
Sorry for the big file size, but JPEG wasn't really nice to the hairs.

Comment & Critic welcome as always

Florian
-- 
//=================[web: http://www.torfbold.com]==================\\
#local a=-5;#while(a<5)sphere{<sin(a*pi)*5a*10pow(a,5)*.01>sin(a*a*a*
.1)+1pigment{rgb 9*z}}#local a=a+.01;#end camera{look_at-y*10location
<8,-3,-8>*10}// [www.povray.org]     [www.imp.org]     [www.irtc.org]


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Attachments:
Download 'hairy.jpg' (203 KB)

Preview of image 'hairy.jpg'
hairy.jpg


 

From:  Light Beam 
Subject: Re: primitive and hairy
Date: 1 Nov 2003 11:12:01
Message: <3fa3db51@news.povray.org>
I like them !


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From: Rick [Kitty5]
Subject: Re: primitive and hairy
Date: 2 Nov 2003 04:55:03
Message: <3fa4d477$1@news.povray.org>
Florian Brucker wrote:
> Comment & Critic welcome as always

Impressive!

-- 
Rick

Kitty5 NewMedia http://Kitty5.com
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From: Florian Brucker
Subject: Re: primitive and hairy
Date: 2 Nov 2003 06:48:20
Message: <3fa4ef04$1@news.povray.org>
> I like them !
Thanks :)

-- 
//=================[web: http://www.torfbold.com]==================\\
#local a=-5;#while(a<5)sphere{<sin(a*pi)*5a*10pow(a,5)*.01>sin(a*a*a*
.1)+1pigment{rgb 9*z}}#local a=a+.01;#end camera{look_at-y*10location
<8,-3,-8>*10}// [www.povray.org]     [www.imp.org]     [www.irtc.org]


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From: Florian Brucker
Subject: Re: primitive and hairy
Date: 2 Nov 2003 06:49:08
Message: <3fa4ef34@news.povray.org>
> Impressive!

Thanks, but I think most of the credits go to Chris Colefax for doing 
those wonderful hair!

Florian
-- 
//=================[web: http://www.torfbold.com]==================\\
#local a=-5;#while(a<5)sphere{<sin(a*pi)*5a*10pow(a,5)*.01>sin(a*a*a*
.1)+1pigment{rgb 9*z}}#local a=a+.01;#end camera{look_at-y*10location
<8,-3,-8>*10}// [www.povray.org]     [www.imp.org]     [www.irtc.org]


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From: JC (Exether)
Subject: Re: primitive and hairy
Date: 3 Nov 2003 02:26:01
Message: <3fa60309@news.povray.org>
Cool stuff, the hair seems to have strange artifacts when the angle is 
sharp (see attachment) though.

JC

Florian Brucker wrote:
> I started to work on a couple of macros for mesh-primitive-output. They 
> got almost the same syntax as normal POV-primitives, but the output - 
> meshes. Together with the inbuild PCM-Output-support it is now finally 
> possible to use all those nice macros from Chris Colefax and Doug 
> Eichenberg on primitives. The only drawback is that you can't use them 
> in CSG (well, aside from union of course). But I think it's still nice 
> and comes in handy for my next project. Here's an early image using 
> Chris Colefax' hair macro, it took 6 hours on my Athlon 600/256 MB (time 
> to upgrade that thing). I would have used Doug's macros but they took 
> even longer... Radiosity setting is as poor as possible (Radiosity_Debug 
> from rad_def.inc), but I hate to wait :)
> Sorry for the big file size, but JPEG wasn't really nice to the hairs.
> 
> Comment & Critic welcome as always
> 
> Florian
> 
> ------------------------------------------------------------------------
>


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Attachments:
Download 'hairy_detail.jpg' (2 KB)

Preview of image 'hairy_detail.jpg'
hairy_detail.jpg


 

From: Florian Brucker
Subject: Re: primitive and hairy
Date: 3 Nov 2003 09:31:41
Message: <3fa666cd$1@news.povray.org>
> Cool stuff, the hair seems to have strange artifacts when the angle is 
> sharp (see attachment) though.
Thanks! I noted the artifacts, too. Don't know if they are due to 
anti-aliasing (parts of the hair dissapearing) or a problem in the 
algorithm. As this will hopefully end up in an animation, I don't care 
about it too much - I hope it won't be noticeable after all :)

Florian
-- 
//=================[web: http://www.torfbold.com]==================\\
#local a=-5;#while(a<5)sphere{<sin(a*pi)*5a*10pow(a,5)*.01>sin(a*a*a*
.1)+1pigment{rgb 9*z}}#local a=a+.01;#end camera{look_at-y*10location
<8,-3,-8>*10}// [www.povray.org]     [www.imp.org]     [www.irtc.org]


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