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From: Norbert Kern
Subject: Light & Shadows
Date: 22 Apr 2020 18:30:01
Message: <web.5ea08bdf22c6df27afdd13e10@news.povray.org>
This idyllic (non-realistic) scene is the result of several months of work. It
took that long because of an experiment.

I was curious about what would happen when only looking long enough at each
parts of the scene and so detecting not so good parts.
In fact I detected one flaw after another for three long months.
So I substituted, changed or retextured nearly all objects, some of them several
times.

In the end the scene used 155 individual objects - by comparison my recent redo
of "warm_up" only used 21 meshes.
So the scene contains 31 animals (9 birds, 7 mammals, 11 insects, 3 frogs and 2
fishes).
Since some of them are nearly invisible, I downloaded a 8000*4500 pixel version
(
http://news.povray.org/povray.binaries.scene-files/thread/%3Cweb.5ea0897b523527c5afdd13e10%40news.povray.org%3E/
).

Rendering this version took more than 9 days and 43 GB of RAM were used.

I worked several weeks on an atmosphere alone, but in the end all I did was
adding a subtle fog effect.

The chief motiv of the image is the contrast of light and shadows as it is
important in impressionistic painting or gothic architecture.
I'll explore this topic in my next images more.

Beside this philosophical reasons it was important for me in a more technical
sense as it is the first image since 15 years developed with assumed_gamma 1.
I think, I'll stay at this since it is obviously possible to realize strong
contrasts with assumed_gamma 1...


Happy rendering in difficult times,
Norbert


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Attachments:
Download 'light & shadows.jpg' (878 KB)

Preview of image 'light & shadows.jpg'
light & shadows.jpg


 

From: William F Pokorny
Subject: Re: Light & Shadows
Date: 22 Apr 2020 19:10:41
Message: <5ea096b1$1@news.povray.org>
On 4/22/20 2:24 PM, Norbert Kern wrote:
> This idyllic (non-realistic) scene is the result of several months of work. It
> took that long because of an experiment.
> 
...
> 
> Happy rendering in difficult times,
> Norbert
> 
WOW. That's one beautiful image Norbert! Bravo.

Going to sit back, drink a cup of coffee, and stare at it for a while.

Bill P.


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From: Ton
Subject: Re: Light & Shadows
Date: 22 Apr 2020 23:45:01
Message: <web.5ea0d5cc1a336268ac18885c0@news.povray.org>
Fantastic, would like to visit this place. Povray is surely amazing, well done.

Cheers
Ton.


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From: Cousin Ricky
Subject: Re: Light & Shadows
Date: 23 Apr 2020 04:00:42
Message: <5ea112ea@news.povray.org>
On 2020-04-22 2:24 PM (-4), Norbert Kern wrote:
> This idyllic (non-realistic) scene is the result of several months of work. It
> took that long because of an experiment.
> 
> [snip]

That is one truly impressive photograph.  I can hardly wait to see your 
render.

But seriously, you've outdone yourself here.  Great job!

> The chief motiv of the image is the contrast of light and shadows as it is
> important in impressionistic painting or gothic architecture.
> I'll explore this topic in my next images more.
> 
> Beside this philosophical reasons it was important for me in a more technical
> sense as it is the first image since 15 years developed with assumed_gamma 1.
> I think, I'll stay at this since it is obviously possible to realize strong
> contrasts with assumed_gamma 1...

I would expect so.  Real life does it linearly; it is our perceptions 
that are non-linear.  My response to a low contrast scene has not been 
to fiddle with the assumed gamma, but to change the lighting environment.


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From: Thomas de Groot
Subject: Re: Light & Shadows
Date: 23 Apr 2020 07:04:06
Message: <5ea13de6$1@news.povray.org>
Op 22/04/2020 om 20:24 schreef Norbert Kern:
> This idyllic (non-realistic) scene is the result of several months of work. It
> took that long because of an experiment.
> 
> I was curious about what would happen when only looking long enough at each
> parts of the scene and so detecting not so good parts.
> In fact I detected one flaw after another for three long months.
> So I substituted, changed or retextured nearly all objects, some of them several
> times.
> 

Absolutely gorgeous scene indeed. While your "experiment" contains the 
danger of never finishing scene building, it is absolutely essential for 
reaching any level of perfection. I do something less extreme than you 
myself, with the result that over the last couple of years my production 
has dramatically fallen ;-) There are other reasons too for this drop 
but those are coming from RL... Anyway, this is a landmark image.

> In the end the scene used 155 individual objects - by comparison my recent redo
> of "warm_up" only used 21 meshes.
> So the scene contains 31 animals (9 birds, 7 mammals, 11 insects, 3 frogs and 2
> fishes).
> Since some of them are nearly invisible, I downloaded a 8000*4500 pixel version
> (
>
http://news.povray.org/povray.binaries.scene-files/thread/%3Cweb.5ea0897b523527c5afdd13e10%40news.povray.org%3E/
> ).
> 
> Rendering this version took more than 9 days and 43 GB of RAM were used.

I suppose continuous render or did you interrupt and continue (+c) a 
couple of times?

> 
> I worked several weeks on an atmosphere alone, but in the end all I did was
> adding a subtle fog effect.

I recognise that. ;-)

> 
> The chief motiv of the image is the contrast of light and shadows as it is
> important in impressionistic painting or gothic architecture.
> I'll explore this topic in my next images more.

Cant wait...

> 
> Beside this philosophical reasons it was important for me in a more technical
> sense as it is the first image since 15 years developed with assumed_gamma 1.
> I think, I'll stay at this since it is obviously possible to realize strong
> contrasts with assumed_gamma 1...

I can only approve.

> 
> 
> Happy rendering in difficult times,
> Norbert
> 

Thanks! My thoughts go to the numerous who are threatened of losing 
their livelihood because of covid19.

-- 
Thomas


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From: Bald Eagle
Subject: Re: Light & Shadows
Date: 23 Apr 2020 11:15:00
Message: <web.5ea1788f1a336268fb0b41570@news.povray.org>
Thomas de Groot <tho### [at] degrootorg> wrote:

> Thanks! My thoughts go to the numerous who are threatened of losing
> their livelihood because of covid19.

Indeed.   So as not to hijack discussion of this absolute masterpiece, switching
to off-topic thread for this...


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From: Alain Martel
Subject: Re: Light & Shadows
Date: 23 Apr 2020 16:34:42
Message: <5ea1c3a2$1@news.povray.org>
Le 2020-04-23 à 00:00, Cousin Ricky a écrit :
> On 2020-04-22 2:24 PM (-4), Norbert Kern wrote:
>> This idyllic (non-realistic) scene is the result of several months of 
>> work. It
>> took that long because of an experiment.
>>
>> [snip]
> 
> That is one truly impressive photograph.  I can hardly wait to see your 
> render.
> 
> But seriously, you've outdone yourself here.  Great job!
> 
>> The chief motiv of the image is the contrast of light and shadows as 
>> it is
>> important in impressionistic painting or gothic architecture.
>> I'll explore this topic in my next images more.
>>
>> Beside this philosophical reasons it was important for me in a more 
>> technical
>> sense as it is the first image since 15 years developed with 
>> assumed_gamma 1.
>> I think, I'll stay at this since it is obviously possible to realize 
>> strong
>> contrasts with assumed_gamma 1...
> 
> I would expect so.  Real life does it linearly; it is our perceptions 
> that are non-linear.  My response to a low contrast scene has not been 
> to fiddle with the assumed gamma, but to change the lighting environment.

Like reducing the ambient amount.


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From: Norbert Kern
Subject: Re: Light & Shadows
Date: 23 Apr 2020 17:30:01
Message: <web.5ea1d0141a336268afdd13e10@news.povray.org>
William F Pokorny <ano### [at] anonymousorg> wrote:
> On 4/22/20 2:24 PM, Norbert Kern wrote:
> > This idyllic (non-realistic) scene is the result of several months of work. It
> > took that long because of an experiment.
> >
> ...
> >
> > Happy rendering in difficult times,
> > Norbert
> >
> WOW. That's one beautiful image Norbert! Bravo.
>
> Going to sit back, drink a cup of coffee, and stare at it for a while.
>
> Bill P.


Lol - in the case you wonder about where all the animals are, here is an image
with all the creatures...

Norbert


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Attachments:
Download 'light & shadows_animals.jpg' (92 KB)

Preview of image 'light & shadows_animals.jpg'
light & shadows_animals.jpg


 

From: Norbert Kern
Subject: Re: Light & Shadows
Date: 23 Apr 2020 17:35:00
Message: <web.5ea1d12e1a336268afdd13e10@news.povray.org>
"Ton" <ton### [at] gmailcom> wrote:
> Fantastic, would like to visit this place. Povray is surely amazing, well done.
>
> Cheers
> Ton.

Thank you - I can remember a guy many years before - he said, povray can depict
anything. I want to add - it's sometimes hard to know, what I want to depict.

Norbert


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From: Norbert Kern
Subject: Re: Light & Shadows
Date: 23 Apr 2020 17:45:01
Message: <web.5ea1d3f71a336268afdd13e10@news.povray.org>
Cousin Ricky <ric### [at] yahoocom> wrote:

> > Beside this philosophical reasons it was important for me in a more technical
> > sense as it is the first image since 15 years developed with assumed_gamma 1.
> > I think, I'll stay at this since it is obviously possible to realize strong
> > contrasts with assumed_gamma 1...
>
> I would expect so.  Real life does it linearly; it is our perceptions
> that are non-linear.  My response to a low contrast scene has not been
> to fiddle with the assumed gamma, but to change the lighting environment.


In fact texturing was really simple. A finish like "specular 0.3 roughness 0.003
diffuse 0.6 ambient 0" worked with nearly all objects. When I used assumed_gamma
2.2 there was much more work to do :-)

The biggest change was to reduce the radiosity contribution of the sky.
Here I used rather extreme settings (at least for me) -

#version 3.7;

#declare RAD = 8;

global_settings {
        assumed_gamma 1
        max_trace_level 255
        noise_generator 2
                radiosity {
                        pretrace_start 0.08
                        pretrace_end   0.04/RAD
                        count 30*RAD
                        nearest_count min (20, RAD)
                        error_bound 3/RAD
                        low_error_factor 0.5
                        recursion_limit 1
                        gray_threshold 0
                        minimum_reuse 0.015
                        brightness 1
                        adc_bailout 0.005
                        normal on
                        media off
                }
}

#declare skyf = 0.5;

light_source {
        <0,0,40000> color srgb (<2.42,2.23,1.87>+2.173*0.3)*0.85
        area_light <1000,0,0>, <0,1000,0> 5,5 adaptive 0 jitter circular orient
        rotate <-47,-50,0>
}

sky_sphere {
        pigment {
                function {max (min (y, 1), 0)}
                color_map {
                        [0.0000  srgb <212*skyf,221*skyf,239*(1+skyf)*0.5>/255]
                        [0.1029  srgb <219*skyf,229*skyf,244*(1+skyf)*0.5>/255]
                        [0.1512  srgb <233*skyf,241*skyf,250*(1+skyf)*0.5>/255]
                        [0.1949  srgb <223*skyf,239*skyf,252*(1+skyf)*0.5>/255]
                        [0.2444  srgb <201*skyf,227*skyf,252*(1+skyf)*0.5>/255]
                        [0.2921  srgb <180*skyf,213*skyf,250*(1+skyf)*0.5>/255]
                        [0.3732  srgb <144*skyf,180*skyf,239*(1+skyf)*0.5>/255]
                        [0.4255  srgb <137*skyf,172*skyf,235*(1+skyf)*0.5>/255]
                        [0.7067  srgb < 97*skyf,126*skyf,198*(1+skyf)*0.5>/255]
                        [0.7740  srgb < 92*skyf,119*skyf,190*(1+skyf)*0.5>/255]
                        [0.8275  srgb < 88*skyf,114*skyf,185*(1+skyf)*0.5>/255]
                        [0.8850  srgb < 85*skyf,111*skyf,180*(1+skyf)*0.5>/255]
                        [0.9425  srgb < 82*skyf,107*skyf,175*(1+skyf)*0.5>/255]
                        [1.0000  srgb < 79*skyf,103*skyf,170*(1+skyf)*0.5>/255]
                }
        }
}

Norbert


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