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From: Christoph Hormann
Subject: Merry christmas [70k]
Date: 21 Dec 2003 04:02:10
Message: <3m3gb1-4ch.ln1@triton.imagico.de>
The snowman is reused from an old image:

http://www.tu-bs.de/~y0013390/pov/pict/snowman.jpg

The sky is made with the skylight macro from Jaime's lightsys:

http://www.ignorancia.org/t_lightsys.php

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 25 Oct. 2003 _____./\/^>_*_<^\/\.______


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From: Aaron Gillies
Subject: Re: Merry christmas [70k]
Date: 21 Dec 2003 10:32:28
Message: <3fe5bd0c$1@news.povray.org>
Christoph:

Nice.  This might be the best of your many landscapes so far.

Aaron


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From: Ryan Bennitt
Subject: Re: Merry christmas [70k]
Date: 21 Dec 2003 10:45:33
Message: <3fe5c01d$1@news.povray.org>
Yeah, those mountains really look very good. Do we get the source as a Christmas
present ;)

Ryan

"Aaron Gillies" <bee### [at] snickerorg> wrote in message
news:3fe5bd0c$1@news.povray.org...
> Christoph:
>
> Nice.  This might be the best of your many landscapes so far.
>
> Aaron
>
>


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From: Hugo Asm
Subject: Re: Merry christmas [70k]
Date: 21 Dec 2003 13:41:27
Message: <3fe5e957$1@news.povray.org>
Nice.

I just found and downloaded the new version of lightsys. Any idea why it
doesn't work with MegaPOV1.0 ?  It works with POV3.5 !

Yesterday I played with the skylight macro (apparently an older version from
this news archieve) but I ran into many problems with light intensity. The
sky around the sun couldn't get bright enough to give correct reflections.
Has this issue been addressed?

Regards,
Hugo


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From: Jaime Vives Piqueres
Subject: Re: Merry christmas [70k]
Date: 22 Dec 2003 14:43:19
Message: <3fe74957$1@news.povray.org>
Very nice image, Christoph. Excellent for a quick christmas card, 
indeed. No snow around here to check realism, sorry... :)

> The sky is made with the skylight macro from Jaime's lightsys:

   To be honest, this version of skylight.inc is the work of Philippe 
Debar, adapted by Ive to work with Lightsys: I even don't remember if I 
myself done any little teaking...

   I don't know if the results are very accurate, but it gives slighty 
nicer results than the original version.

--
Jaime


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From: Jaime Vives Piqueres
Subject: Re: Merry christmas [70k]
Date: 22 Dec 2003 14:50:18
Message: <3fe74afa$1@news.povray.org>
Hugo Asm wrote:
> I just found and downloaded the new version of lightsys. Any idea why it
> doesn't work with MegaPOV1.0 ?  It works with POV3.5 !

   How? ...what's the error? I can't figure why it will not work (I 
don't have MegaPOV right now to test).

> Yesterday I played with the skylight macro (apparently an older version from
> this news archieve) but I ran into many problems with light intensity. The
> sky around the sun couldn't get bright enough to give correct reflections.
> Has this issue been addressed?

   Hmmm... I think the answer is no, but try yourself, please.

--
Jaime


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From: Hugo Asm
Subject: Re: Merry Christmas - Lightsys error message
Date: 22 Dec 2003 16:31:46
Message: <3fe762c2@news.povray.org>
>  How? ...what's the error? I can't figure why it will not work
>  (I don't have MegaPOV right now to test).

Glad to see you stopped by! The updated lightsys is great! The bug is a bit
difficult for me to track down. The error message prevents all your demos /
templates / tests to parse. I have 4 versions of POV-Ray installed. They all
claim to be based on the POV3.5 source, but your macros only work in 2
versions:

Official POV3.5  = works.
Unofficial MLpov 0.81   = works.
Unofficial POVman 1.0   = breaks.
Unofficial MegaPOV1.0  = breaks.

Here's an example of the error message:

File: demo_cyndi_cubes.pov  Line: 38
#declare LC1 = EmissiveSpectrum(ES_Osram_CoolFluor_36w) <----ERROR
Parse Error: Expected '( or [', ) found instead
Returned from renderer with error status


When I add () it complains that no value was found in between the
parantheses. When I write (1) it breaks the macros. Maybe it has something
to do with splines, since "ES_Osram_CoolFluor_36w" refer to a spline...(?)

Best regards,
Hugo


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From: ABX
Subject: Re: Merry Christmas - Lightsys error message
Date: 23 Dec 2003 02:12:48
Message: <4hqfuvgtf76hs5l39sbcspt9o84nf3da3d@4ax.com>
On Mon, 22 Dec 2003 22:32:19 +0100, "Hugo Asm" <hua### [at] post3teledk> wrote:
> #declare LC1 = EmissiveSpectrum(ES_Osram_CoolFluor_36w) <----ERROR
> Parse Error: Expected '( or [', ) found instead
> Returned from renderer with error status
>
> When I add () it complains that no value was found in between the
> parantheses. When I write (1) it breaks the macros. Maybe it has something
> to do with splines, since "ES_Osram_CoolFluor_36w" refer to a spline...(?)

Yes, there is known problem of spline being parameter. It is fixed for next
release, meantime try to add spline{} around ES_Osram_CoolFluor_36w. It should
help. Sorry for inconvenience.

ABX


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From: Christoph Hormann
Subject: Re: Merry christmas [70k]
Date: 28 Dec 2003 11:42:03
Message: <d8d3c1-h7e.ln1@triton.imagico.de>
Jaime Vives Piqueres wrote:
> 
>   Very nice image, Christoph. Excellent for a quick christmas card, 
> indeed. No snow around here to check realism, sorry... :)
> 

Thanks.

The snow is indeed the weak point - i played with the idea of a 
subsurface scattering version but this scene is not fast enough and the 
geometry is not that good to show the scattering anyway.

>> The sky is made with the skylight macro from Jaime's lightsys:
> 
> 
>   To be honest, this version of skylight.inc is the work of Philippe 
> Debar, adapted by Ive to work with Lightsys: I even don't remember if I 
> myself done any little teaking...
> 
>   I don't know if the results are very accurate, but it gives slighty 
> nicer results than the original version.

The problem i have with the skylight macro is that it does not offer 
much control over the colors.  I used a different light color for the 
sky than for the light source to have more freedom in that part.

Another thing is of course that the use of a mesh for the sky is 
certainly not the best solution - although it is of course the only 
viable one with standard POV. A feature to have image_maps based on an 
internal array (or an ascii hdr file format) would be useful for this.

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 25 Oct. 2003 _____./\/^>_*_<^\/\.______


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From: Christoph Hormann
Subject: Re: Merry christmas [70k]
Date: 28 Dec 2003 11:52:03
Message: <3sd3c1-i4g.ln1@triton.imagico.de>
Ryan Bennitt wrote:
> Yeah, those mountains really look very good. Do we get the source as a Christmas
> present ;)

The mountains are actually quite simple, the structure is made with a 
f_ridged_mf() function and the coloring with a slope pattern.  I posted 
examples for this in the past:

Subject: Re: iso - ridged mf question
Date: Mon, 12 Mar 2001 19:20:26 +0100
Newsgroups: povray.unofficial.patches
From: Christoph Hormann <chr### [at] gmxde>
news://news.povray.org/3AAD136A.E955EBF@gmx.de
http://news.povray.org/3AAD136A.E955EBF@gmx.de

Subject: Re: Isosurface troble
Date: Mon, 05 Aug 2002 22:58:41 +0200
Newsgroups: povray.general
From: Christoph Hormann <chr### [at] gmxde>
news://news.povray.org/3D4EE701.AF500714@gmx.de
http://news.povray.org/3D4EE701.AF500714@gmx.de

Subject: Re: hf and slope
Date: Wed, 21 Mar 2001 17:08:21 +0100
Newsgroups: povray.advanced-users
From: Christoph Hormann <chr### [at] gmxde>
news://news.povray.org/3AB8D1F5.7D4595C7@gmx.de
http://news.povray.org/3AB8D1F5.7D4595C7@gmx.de

Christoph

-- 
POV-Ray tutorials, include files, Sim-POV,
HCR-Edit and more: http://www.tu-bs.de/~y0013390/
Last updated 25 Oct. 2003 _____./\/^>_*_<^\/\.______


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