POV-Ray : Newsgroups : povray.binaries.images : Teapot ... now with AA Server Time
18 Aug 2024 14:23:02 EDT (-0400)
  Teapot ... now with AA (Message 1 to 6 of 6)  
From: Jan Walzer
Subject: Teapot ... now with AA
Date: 21 Apr 2001 11:16:28
Message: <3ae1a44c@news.povray.org>
This took 8h7mins with AA0.3 ...
I think its worth the time, isn't it ?

Who wants to try it with photons and dispersion ?

--
background{rgb 1}camera{location<1,5,-2>look_at 0}#macro
m(a,b,i)#local d=(b-a)
/8;#local
e=vcross(d,y);#if(i)m(a-e,a+e+2*d,i-1)m(a+e,a+2*d-e,i-1)m(a+3*d-e,a+e
+3*d,i-1)m(a+3*d-e,a+5*d-e,i-1)m(a+6*d-e,a+e+6*d,i-1)m(a+8*d-e,a+e+8*d
,i-1)#else
cylinder{a,b,vlength(d)/3 pigment{rgb 0}}#end#end m(-4*x,2*x,4) // Jan
Walzer


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Attachments:
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Preview of image 'teapot.jpg'
teapot.jpg


 

From: Alberto
Subject: Re: Teapot ... now with AA
Date: 21 Apr 2001 12:12:44
Message: <3AE1B145.B981C79E@usb.ve>
Jan Walzer wrote:
> 
> This took 8h7mins with AA0.3 ...
> I think its worth the time, isn't it ?
> 
> Who wants to try it with photons and dispersion ?
> 
Nice teapot.

I think you have the adc_bailout setting to low. You can try to set it
as high as .05. In doing this you'll need to increase the reflection a
little bit. The black spots will disappear and the time rendering will decrease.

Regards, Alberto.


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From: David Fontaine
Subject: Re: Teapot ... now with AA
Date: 21 Apr 2001 14:21:39
Message: <3AE1CEC5.6B0C647E@faricy.net>
Very nice.

One problem, what's causing those black spots? They don't really detract
much though. I'm wondering if it's max_trace or some sort of attenuation
you put in, but they seem too dark for that.

> Who wants to try it with photons and dispersion ?

:9

--
David Fontaine  <dav### [at] faricynet>  ICQ 55354965
My raytracing gallery:  http://davidf.faricy.net/


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From: Jan Walzer
Subject: Re: Teapot ... now with AA
Date: 21 Apr 2001 15:12:42
Message: <3ae1dbaa@news.povray.org>
even with max_trace 2048 they are still there ...
I think it's the inner refraction, thats causing them ...
don't know how to kill them ...

for the next render I'll try to set adc_bailout to 1/32 and raise the
tracelevel again to 128 (there's no need to incease it further ) and
see if this will change ...


--
background{rgb 1}camera{location<1,5,-2>look_at 0}#macro
m(a,b,i)#local d=(b-a)
/8;#local
e=vcross(d,y);#if(i)m(a-e,a+e+2*d,i-1)m(a+e,a+2*d-e,i-1)m(a+3*d-e,a+e
+3*d,i-1)m(a+3*d-e,a+5*d-e,i-1)m(a+6*d-e,a+e+6*d,i-1)m(a+8*d-e,a+e+8*d
,i-1)#else
cylinder{a,b,vlength(d)/3 pigment{rgb 0}}#end#end m(-4*x,2*x,4) // Jan
Walzer


"David Fontaine" <dav### [at] faricynet> schrieb im Newsbeitrag
news:3AE1CEC5.6B0C647E@faricy.net...
> Very nice.
>
> One problem, what's causing those black spots? They don't really
detract
> much though. I'm wondering if it's max_trace or some sort of
attenuation
> you put in, but they seem too dark for that.
>
> > Who wants to try it with photons and dispersion ?
>
> :9
>
> --
> David Fontaine  <dav### [at] faricynet>  ICQ 55354965
> My raytracing gallery:  http://davidf.faricy.net/
>
>


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From: Bill DeWitt
Subject: Re: Teapot ... now with AA
Date: 21 Apr 2001 17:32:16
Message: <3ae1fc60@news.povray.org>
"Jan Walzer" <jan### [at] lzernet> wrote in message
news:3ae1a44c@news.povray.org...
> This took 8h7mins with AA0.3 ...
> I think its worth the time, isn't it ?

    Good enough to join my wall papers. But the scene itself could use some
development, perhaps a few objects out of camera for the teapot to reflect.


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From: Francois Labreque
Subject: Re: Teapot ... now with AA
Date: 21 Apr 2001 20:24:38
Message: <3AE223B5.B55AE15E@videotron.ca>
Jan Walzer wrote:
> 
> This took 8h7mins with AA0.3 ...
> I think its worth the time, isn't it ?

Very nice pic.  But don't you think that after nearly 9 hours, your tea
must be really cold?  At this point, I'd add a few ice cubes and a lemon
slice.

-- 
Francois Labreque | Make you a deal, I'll show you mine if you show 
    flabreque     | me yours.
        @         | 
   videotron.ca   |   - Pandora.


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