POV-Ray : Newsgroups : povray.binaries.images : Teapot Take4 Server Time
18 Aug 2024 16:20:11 EDT (-0400)
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From: Steve
Subject: Re: Teapot Take4
Date: 22 Apr 2001 12:09:56
Message: <slrn9e5lo7.9vr.steve@zero-pps.localdomain>
On Sun, 22 Apr 2001 12:52:06 +0200, Jan Walzer wrote:
>OK .. that's a way, I dropped the adc_bailout to 1/64 and it took 4
>hours. OK, there are some artefacts at the reflections, but with
>better AA I can get rid, I think ..
>
>Now the texture for the teaegg isn't right yet, but I thought, I'd
>like to share ...

Looks ok. 

>
>dunno, what happend to my previous wood-texture ... the normals are
>gone, I'll check for them ...

I noticed that too, the old wood was better. 


-- 
Cheers
Steve              email mailto:ste### [at] zeroppsuklinuxnet

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From: Batronyx
Subject: Re: Teapot Take4
Date: 22 Apr 2001 13:59:53
Message: <3ae31c19@news.povray.org>
The modelling on the teaegg *is* rather impressive.

----------------------------------------
Batronyx ^"^
bat### [at] cadronhsacom
http://www.batronyx.com
Bhuddist monk to hotdog vendor:
     "Make me one with everything."
----------------------------------------


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From: Jan Walzer
Subject: Re: Teapot Take4
Date: 22 Apr 2001 14:02:17
Message: <3ae31ca9@news.povray.org>
there are only faked caustics and no photons used, what number should
I adjust, you think?
Yes ... the media uses only absorption ... *THIS* is quite hard to
control ...

--
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


"Bob H." <omn### [at] msncom> schrieb im Newsbeitrag
news:3ae2c3ce@news.povray.org...
> The caustics aren't showing well, or hardly at all.  I know they
aren't easy
> to adjust for.  Looks here that maybe the number is too large.  Is
> absorption used is the tea media?
>
> Bob H.
>
>
>
>


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From: Jan Walzer
Subject: Re: Teapot Take4
Date: 22 Apr 2001 14:03:20
Message: <3ae31ce8@news.povray.org>
Don't you see, the tea is in progress ?

--
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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From: Jan Walzer
Subject: Re: Teapot Take4
Date: 22 Apr 2001 14:05:06
Message: <3ae31d52@news.povray.org>
> On Sun, 22 Apr 2001 12:52:06 +0200, Jan Walzer wrote:
> >OK .. that's a way, I dropped the adc_bailout to 1/64 and it took 4
> >hours. OK, there are some artefacts at the reflections, but with
> >better AA I can get rid, I think ..
> >
> >Now the texture for the teaegg isn't right yet, but I thought, I'd
> >like to share ...
>
> Looks ok.
naaa .. it has to be MUCH more metallic

--
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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From: Jan Walzer
Subject: Re: Teapot Take4
Date: 22 Apr 2001 14:06:36
Message: <3ae31dac@news.povray.org>
Rhino works quite well for these things ...
I started with Rhino last week, so you can assume, it's quite a
primitive structure ;)

--
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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From: Christoph Hormann
Subject: Re: Teapot Take4
Date: 22 Apr 2001 14:32:32
Message: <3AE323CA.D62F5491@gmx.de>
Jan Walzer wrote:
> 
> OK .. that's a way, I dropped the adc_bailout to 1/64 and it took 4
> hours. OK, there are some artefacts at the reflections, but with
> better AA I can get rid, I think ..
> 
> Now the texture for the teaegg isn't right yet, but I thought, I'd
> like to share ...
> 
> dunno, what happend to my previous wood-texture ... the normals are
> gone, I'll check for them ...
> 

Really nice, but the metal texture should be improved.  There were some
quite realistic metal pictures here in the past, for example:

Subject: Nut & Bolt (40k)
Date: Wed, 16 Aug 2000 03:02:48 +0300
From: Kari Kivisalo <kar### [at] kivisalonet>
Newsgroups: povray.binaries.images

For the wood, maybe try my IsoWood include :-)

Christoph

-- 
Christoph Hormann <chr### [at] gmxde>
IsoWood include, radiosity tutorial, TransSkin and other 
things on: http://www.schunter.etc.tu-bs.de/~chris/


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From: Sander
Subject: Re: Teapot Take4
Date: 22 Apr 2001 16:15:37
Message: <MPG.154d5a67faf03ae998974a@NEWS.POVRAY.ORG>
In article <3ae2b706@news.povray.org>, Jan Walzer says...
> OK .. that's a way, I dropped the adc_bailout to 1/64 and it took 4
> hours. OK, there are some artefacts at the reflections, but with
> better AA I can get rid, I think ..
> 
> Now the texture for the teaegg isn't right yet, but I thought, I'd
> like to share ...
> 
> dunno, what happend to my previous wood-texture ... the normals are
> gone, I'll check for them ...
> 
I find it highly realistic! The nagging about the strength of the tea 
should be taken as a compliment: nothing else to nag about :))

Very good!
-- 
Regards,  Sander


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From: Bob H 
Subject: Re: Teapot Take4
Date: 22 Apr 2001 16:26:47
Message: <3ae33e87@news.povray.org>
"Jan Walzer" <jan### [at] lzernet> wrote in message
news:3ae31ca9@news.povray.org...
> there are only faked caustics and no photons used, what number should
> I adjust, you think?
> Yes ... the media uses only absorption ... *THIS* is quite hard to
> control ...

I see.  I think.  It appears to have some turbulence and if it's only
absorption I didn't realize that would be affected.  Unless it's the
refraction causing that.  Something I should try out anyhow.
caustics 0.5 perhaps, but no way of being sure what's best.  From what I've
seen of it before if too low a number is used the faked caustics spreads too
far and is faint (don't take my word for it) and if too high a number it is
too small and tight an area but not always brighter.  I've seen caustics 1
work out well many times and others not well at all.  I often raise the
diffuse of the object being projected onto so that it's more effective but
that can tend to mess with the texture your actually wanting (in this case
the table top).

Bob H.


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From: Psychomech
Subject: Re: Teapot Take4
Date: 23 Apr 2001 09:14:53
Message: <3AE42B1B.12674D99@home.com>
Slap me silly casue to tell you teh truth i didn't see it was brewing!

Jan Walzer wrote:

> Don't you see, the tea is in progress ?
>
> --
> 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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