POV-Ray : Newsgroups : povray.binaries.images : Rendering patterns different in 3.1 and 3.5? Server Time
17 Aug 2024 14:12:03 EDT (-0400)
  Rendering patterns different in 3.1 and 3.5? (Message 1 to 6 of 6)  
From: Paragon
Subject: Rendering patterns different in 3.1 and 3.5?
Date: 15 Sep 2001 00:35:43
Message: <3ba2da9f@news.povray.org>
from povray.general
>I noticed that rendering patterns in POV-Ray 3.1 and 3.5 give different
results.  Rendering in POV-Ray 3.5 with >the following texture (as given by
Ricky[Kitty]5 in povray.binaries.images under 'more glass balls...') yields
a very >soft pattern to objects this material is applied to.  But when
rendered in POV-Ray 3.1, the pattern appears much >more defined.  Why the
change?  Is there any convention to use so that a scene with materials
intended to be >rendered in POV-Ray 3.1 can be rendered in POV-Ray 3.5 with
the same look, or is it just a matter of manually >tweaking?
>I've posted images in povray.binaries.images comparing the same pattern
rendered in 3.1 and 3.5.
>
>#declare Material1 =
>   material  // Material1
>   {
>      texture
>      {
>         pigment
>         {
>            color rgb <1.0, 1.0, 1.0>
>         }
>         normal
>         {
>            bozo , 0.5
>            turbulence 0.5
>            ramp_wave
>         }
>         finish
>         {
>            ambient 0.0
>            diffuse 0.6115
>         }
>      }
>   }
>
>-Paragon


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Attachments:
Download 'myscene35.jpg' (5 KB) Download 'myscene31.jpg' (15 KB)

Preview of image 'myscene35.jpg'
myscene35.jpg

Preview of image 'myscene31.jpg'
myscene31.jpg


 

From: Paragon
Subject: Re: Rendering patterns different in 3.1 and 3.5?
Date: 15 Sep 2001 00:54:52
Message: <3ba2df1c@news.povray.org>
Actually, here is a much better comparison.  It's just a cube on a plane
with one light source, no anti-aliasing.

-Paragon


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Attachments:
Download 'myscene31.jpg' (19 KB) Download 'myscene35.jpg' (10 KB)

Preview of image 'myscene31.jpg'
myscene31.jpg

Preview of image 'myscene35.jpg'
myscene35.jpg


 

From: ingo
Subject: Re: Rendering patterns different in 3.1 and 3.5?
Date: 15 Sep 2001 03:29:56
Message: <Xns911D60A19271seed7@povray.org>
in news:3ba2da9f@news.povray.org Paragon wrote:

> Is there any convention to use so that a scene with materials
> intended to be >rendered in POV-Ray 3.1 can be rendered in POV-Ray
> 3.5 with the same look, or is it just a matter of manually
> >tweaking? 
> 

Look for 2.6.1, 2.6.14, 6.7.12.4 and 6.11.10 in the docs.

Ingo

-- 
Photography: http://members.home.nl/ingoogni/
Pov-Ray    : http://members.home.nl/seed7/


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From: Paragon
Subject: Re: Rendering patterns different in 3.1 and 3.5?
Date: 15 Sep 2001 17:15:04
Message: <3ba3c4d8@news.povray.org>
> Look for 2.6.1, 2.6.14, 6.7.12.4 and 6.11.10 in the docs.

I still get different results when I render in 3.5 and use #noise_generator
1.  Am I missing something?

scene31.jpg - rendered with POV-Ray 3.1
scene35.jpg - rendered with POV-Ray 3.5 using #noise_generator  1
scene35a.jpg - rendered with POV-Ray 3.5 using #version 3.1

-Paragon


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Attachments:
Download 'scene31.jpg' (22 KB) Download 'scene35.jpg' (11 KB) Download 'scene35a.jpg' (22 KB)

Preview of image 'scene31.jpg'
scene31.jpg

Preview of image 'scene35.jpg'
scene35.jpg

Preview of image 'scene35a.jpg'
scene35a.jpg


 

From: Batronyx
Subject: Re: Rendering patterns different in 3.1 and 3.5?
Date: 15 Sep 2001 23:50:32
Message: <3ba42188@news.povray.org>
"Paragon" <use### [at] hostcom> wrote in message news:3ba3c4d8@news.povray.org...
> > Look for 2.6.1, 2.6.14, 6.7.12.4 and 6.11.10 in the docs.
>
> I still get different results when I render in 3.5 and use #noise_generator
> 1.  Am I missing something?
>
> scene31.jpg - rendered with POV-Ray 3.1
> scene35.jpg - rendered with POV-Ray 3.5 using #noise_generator  1
> scene35a.jpg - rendered with POV-Ray 3.5 using #version 3.1
>
> -Paragon
>

6.7.2.1.1  might also apply here, particularly if the default value (previously
unavailable for user tuning) has changed from 3.1.


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From: Warp
Subject: Re: Rendering patterns different in 3.1 and 3.5?
Date: 16 Sep 2001 10:32:46
Message: <3ba4b80d@news.povray.org>
Paragon <use### [at] hostcom> wrote:
: I still get different results when I render in 3.5 and use #noise_generator
: 1.  Am I missing something?

  There's no such a thing as #noise_generator (povray gives an error if you
write that). What you probably meant was global_settings { noise_generator 1 }

  But anyway, you could try with different values of accuracy in your
normal block. Try with very small values (such as 0.001 and so on).

-- 
#macro N(D,I)#if(I<6)cylinder{M()#local D[I]=div(D[I],104);M().5,2pigment{
rgb M()}}N(D,(D[I]>99?I:I+1))#end#end#macro M()<mod(D[I],13)-6,mod(div(D[I
],13),8)-3,10>#end blob{N(array[6]{11117333955,
7382340,3358,3900569407,970,4254934330},0)}//                     - Warp -


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