"Jim Holsenback" <jho### [at] povrayorg> schreef in bericht 
news:4acf144f$1@news.povray.org...
>
> Yes ... very nice. I've learned alot about depth queue's from your work. I 
> like how the sidewalk pulls the viewer into the scene!

Thank you Jim. Yes, depth queue's can be subtly used in landscape scenes and 
I generally try to add one or two. The (contentious) fog here is another 
one, but visibly not to everybody's liking... ;-)

Thomas

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"Carlo C." <nomail@nomail> schreef in bericht 
news:web.4aceed4c997c38cf8e9437090@news.povray.org...
> It seems a partial portrait of an ideal world.
> I wish could live inside.
> :-)
>

Well, I am not sure about that personally. My series of Cathy's World, of 
which this is one, contains some more disturbing views...

Thomas

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"LightBeam" <seb### [at] gmailcom> schreef in bericht 
news:4acef047$1@news.povray.org...
> Really nice one :-)

Thank you :-)

Thomas

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> "Christian Froeschlin" <chr### [at] chrfrde> schreef in bericht 
> news:4acf14a8@news.povray.org...
>> Can you post the unprocessed png output from POV for comparison?
> I post here a cropped part of the image.
> 
> Thomas
> 
> 
> 
Your fog make it look like the interior is glowing.

Maybe use a darker shade for your fog. Now, it looks like you are using 
a white/light gray or bluish fog. You may try with a dark gray, maybe 
tinted with some blue.


Alain

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Thomas de Groot wrote:

> The png would be too large (>1 Mb) to post here.

but now that it's here anyway it looks the same so probably
not a gamma issue but a fog issue ;)

> What I wonder about: How do you see the immediate foreground? Too bright? 
> Normal? Because it may just be my fog used that is the cause.

Yes, the problem seems to be only in the background. It's rather
striking with the dominant cavity behind the statue which you would
expect to be rather dark (and even when illuminated, you'd expect
to see the inner edges). This looks similar to the walls being
in shadow but having high ambient, which is probably what
clipka was referring to.

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Thomas de Groot schrieb:
>> Too much ambient though, especially on the building. Better use 
>> radiosity...
> 
> Ambient? No ambient. Only radiosity and some fog. Display gamma at 2.2. no 
> assumed gamma. rendered in 3.7

Radiosity recursion level?

Something's wrong about it at any rate.

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"Christian Froeschlin" <chr### [at] chrfrde> schreef in bericht 
news:4acfc282@news.povray.org...
>> but now that it's here anyway it looks the same so probably
> not a gamma issue but a fog issue ;)

Right! :-)

> Yes, the problem seems to be only in the background. It's rather
> striking with the dominant cavity behind the statue which you would
> expect to be rather dark (and even when illuminated, you'd expect
> to see the inner edges). This looks similar to the walls being
> in shadow but having high ambient, which is probably what
> clipka was referring to.

Yes. Having been lazy, I have kept the fog instead of switching to media as 
I should have done, knowing that fog does not react with light, especially 
in shadowy parts. I shall probably make another render implementing that. At 
first sight, I am not too much troubled by this but it should be done in the 
end.

Thanks for commenting, Christian!

Thomas

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"Alain" <aze### [at] qwertyorg> schreef in bericht 
news:4acf4aa4$1@news.povray.org...
> Your fog make it look like the interior is glowing.
>
> Maybe use a darker shade for your fog. Now, it looks like you are using a 
> white/light gray or bluish fog. You may try with a dark gray, maybe tinted 
> with some blue.
>
Yes indeed. As I answered to Christian, I should have replaced the fog by a 
media but laziness took the upper hand at the end of the day... :-)
It will be done in time though.

Thomas

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"clipka" <ano### [at] anonymousorg> schreef in bericht 
news:4ad02cfb$1@news.povray.org...
>
> Radiosity recursion level?
>
> Something's wrong about it at any rate.

Recursion_limit is set to 1 here. I don't believe it needs a higher level. 
No, the whole issue is about fog, especially as it does not react with light 
in the shadowy parts of the building. In time, I shall replace it with an 
appropriate media.

Thomas

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Thomas de Groot schrieb:

> Recursion_limit is set to 1 here. I don't believe it needs a higher level. 
> No, the whole issue is about fog, especially as it does not react with light 
> in the shadowy parts of the building. In time, I shall replace it with an 
> appropriate media.

Yes, I guess fog fits the bill of what I see.

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