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From: Manuel
Subject: True displacement
Date: 27 May 2003 03:43:03
Message: <3ed31707$1@news.povray.org>
Povray support the true displacement?

My curiosity borned from here:
http://cube.phlatt.net/forums/spiraloid/viewtopic.php?TopicID=9

Cheers,

              Manuel


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From: Christoph Hormann
Subject: Re: True displacement
Date: 27 May 2003 03:56:19
Message: <3ED31A22.F8A52FAB@gmx.de>
Manuel wrote:
> 
> Povray support the true displacement?

If you explain what you mean with this someone might be able to answer.

> My curiosity borned from here:
> http://cube.phlatt.net/forums/spiraloid/viewtopic.php?TopicID=9

Remember POV-Ray is a renderer, not a modeller.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 28 Feb. 2003 _____./\/^>_*_<^\/\.______


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From: ABX
Subject: Re: True displacement
Date: 27 May 2003 03:56:49
Message: <n066dvcu9e8da1vas6hm7ip6c7a3egmg86@4ax.com>
On Tue, 27 May 2003 09:49:28 +0200, "Manuel" <man### [at] tinit> wrote:
> Povray support the true displacement?

Yes, no and even more :-)

Yes - you can displace vertices and subdivide triangles in meshes if necessary
with smart macros in your favorite way and then it works similiar to the way
triangle based modelers handle it.

No - you can't freely displace primitives due to mathematical formulas used to
tracing them but they are not available in trangle based modelers so it is not
aplicable to comparison.

Even more - you can displace isosurface in easy way with better quality than
triangle based meshes but it takes computation power.

ABX


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From: Thorsten Froehlich
Subject: Re: True displacement
Date: 27 May 2003 04:29:18
Message: <3ed321de@news.povray.org>
In article <3ed31707$1@news.povray.org> , "Manuel" <man### [at] tinit>
wrote:

> Povray support the true displacement?

You apparently misunderstand how POV-Ray works.  For a quick answer please
read this manual section, which gives a sufficiently short explanation:
9.1.1.11 How can I bend a object?
<http://www.povray.org/documentation/view/307/>

    Thorsten

____________________________________________________
Thorsten Froehlich
e-mail: mac### [at] povrayorg

I am a member of the POV-Ray Team.
Visit POV-Ray on the web: http://mac.povray.org


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From: Manuel
Subject: Re: True displacement
Date: 27 May 2003 04:47:55
Message: <3ed3263b@news.povray.org>
> Yes, no and even more :-)

Have you a sample for "yes" and "even more" cases?

thx,

             Manuel


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From: ABX
Subject: Re: True displacement
Date: 27 May 2003 05:13:23
Message: <il96dvkapmn1ngjhhuc2dsol7likpnr3ar@4ax.com>
On Tue, 27 May 2003 10:54:20 +0200, "Manuel" <man### [at] tinit> wrote:
> > Yes, no and even more :-)
>
> Have you a sample for "yes" and "even more" cases?

"yes"

  Documentation: 7.12.1.1 The HF Macros

"even more"

  http://news.povray.org/povray.binaries.images/29800/211748/f_teapot.png      
  http://news.povray.org/povray.binaries.animations/23891/167475/wip.mpg
  and a lot from Tor Olav Kristensen  

http://news.povray.org/search/advanced/?s=Kristensen&g=povray.binaries.images&a=1

but that good operating with possibilities of 'yes' and 'even more' cases
require understaing of 'no' answer.

ABX


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From: Thorsten Froehlich
Subject: Re: True displacement
Date: 27 May 2003 06:57:50
Message: <3ed344ae$1@news.povray.org>
In article <il96dvkapmn1ngjhhuc2dsol7likpnr3ar@4ax.com> , ABX 
<abx### [at] abxartpl>  wrote:

>   http://news.povray.org/povray.binaries.animations/23891/167475/wip.mpg

BTW, did you ever finish the morphing texture or make the scene source
available?

    Thorsten

____________________________________________________
Thorsten Froehlich, Duisburg, Germany
e-mail: tho### [at] trfde

Visit POV-Ray on the web: http://mac.povray.org


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From: ABX
Subject: Re: True displacement
Date: 27 May 2003 07:02:47
Message: <17h6dvkr19v0o55vhnufl8dlfo67n89uef@4ax.com>
On Tue, 27 May 2003 12:57:49 +0200, "Thorsten Froehlich" <tho### [at] trfde>
wrote:
> >   http://news.povray.org/povray.binaries.animations/23891/167475/wip.mpg
>
> BTW, did you ever finish the morphing texture or make the scene source
> available?

Current irtc animation topic asks me the same
and I hope I will say 'yes' some day.

ABX


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From: Warp
Subject: Re: True displacement
Date: 27 May 2003 07:25:42
Message: <3ed34b35@news.povray.org>
ABX <abx### [at] abxartpl> wrote:
> you can displace isosurface in easy way

  It might be easy to *you*... ;)

-- 
#macro N(D)#if(D>99)cylinder{M()#local D=div(D,104);M().5,2pigment{rgb M()}}
N(D)#end#end#macro M()<mod(D,13)-6mod(div(D,13)8)-3,10>#end blob{
N(11117333955)N(4254934330)N(3900569407)N(7382340)N(3358)N(970)}//  - Warp -


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From: ABX
Subject: Re: True displacement
Date: 27 May 2003 07:38:06
Message: <3bj6dv0l8klnoie41letnblqql18sh3sa7@4ax.com>
On 27 May 2003 07:25:42 -0400, Warp <war### [at] tagpovrayorg> wrote:
> > you can displace isosurface in easy way
>
>  It might be easy to *you*... ;)

Indeed, for those interested there is tiny macro in isocsg prepared:

http://www-public.tu-bs.de:8080/~y0013390/pov/ic/docu02.html#Displace

ABX


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