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From: Supriyo Bhattacharya
Subject: Boeing 747 with radiosity, bozo clouds and more
Date: 14 Feb 2004 22:54:59
Message: <402eed93@news.povray.org>
Hi everybody
Please provide me with valuable critique regarding the degree of reality and
any other aspect you migth want to consider. Also does anybody have better
suggestions as how to generate realistic ground scene and clouds. For my
scene,I used a satellite image from NASA, which I projected on a plane. I
used bozo texture in a transparent plane on the top of the first plane in
order to generate clouds. Does anyone have better ideas. Also, how to create
the sensation of fog on the horizon.

Thanks in advance....


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From: Dan P
Subject: Re: Boeing 747 with radiosity, bozo clouds and more
Date: 15 Feb 2004 02:20:46
Message: <402f1dce$1@news.povray.org>
"Supriyo Bhattacharya" <sbh### [at] lycoscom> wrote in message
news:402eed93@news.povray.org...
> Hi everybody
> Please provide me with valuable critique regarding the degree of reality
and
> any other aspect you migth want to consider. Also does anybody have better
> suggestions as how to generate realistic ground scene and clouds. For my
> scene,I used a satellite image from NASA, which I projected on a plane. I
> used bozo texture in a transparent plane on the top of the first plane in
> order to generate clouds. Does anyone have better ideas. Also, how to
create
> the sensation of fog on the horizon.
>
> Thanks in advance....

Very nice! Just a little feedback:

* I can see where the texture on the ground starts over again. It's that
sharp-edge.
* You will get a higher degree of realism if you add this: sky_sphere {
pigment { wrinkles } } You'll see. :-)


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From: Bernd Michler
Subject: Re: Boeing 747 with radiosity, bozo clouds and more
Date: 15 Feb 2004 03:12:36
Message: <402f29f4@news.povray.org>
The Airplane wings looks distorted.


"Supriyo Bhattacharya" <sbh### [at] lycoscom> schrieb im Newsbeitrag
news:402eed93@news.povray.org...
> Hi everybody
> Please provide me with valuable critique regarding the degree of reality
and
> any other aspect you migth want to consider. Also does anybody have better
> suggestions as how to generate realistic ground scene and clouds. For my
> scene,I used a satellite image from NASA, which I projected on a plane. I
> used bozo texture in a transparent plane on the top of the first plane in
> order to generate clouds. Does anyone have better ideas. Also, how to
create
> the sensation of fog on the horizon.
>
> Thanks in advance....
>
>
>


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From: Supriyo Bhattacharya
Subject: Re: Boeing 747 with radiosity, bozo clouds and more
Date: 15 Feb 2004 03:34:39
Message: <402f2f1f$1@news.povray.org>
When b747 climbs after take off, the wings bend upwards due to the weight of
the plane, also called wing flex. I have tried to simulate this effect. This
is probably the reason for the distortion.

"Bernd Michler" <shr### [at] gmxde> wrote in message
news:402f29f4@news.povray.org...
> The Airplane wings looks distorted.
>
>
> "Supriyo Bhattacharya" <sbh### [at] lycoscom> schrieb im Newsbeitrag
> news:402eed93@news.povray.org...
> > Hi everybody
> > Please provide me with valuable critique regarding the degree of reality
> and
> > any other aspect you migth want to consider. Also does anybody have
better
> > suggestions as how to generate realistic ground scene and clouds. For my
> > scene,I used a satellite image from NASA, which I projected on a plane.
I
> > used bozo texture in a transparent plane on the top of the first plane
in
> > order to generate clouds. Does anyone have better ideas. Also, how to
> create
> > the sensation of fog on the horizon.
> >
> > Thanks in advance....
> >
> >
> >
>
>


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From: stephen parkinson
Subject: Re: Boeing 747 with radiosity, bozo clouds and more
Date: 15 Feb 2004 04:52:33
Message: <402f4161$1@news.povray.org>
Supriyo Bhattacharya wrote:
> When b747 climbs after take off, the wings bend upwards due to the weight of
> the plane, also called wing flex. I have tried to simulate this effect. This
> is probably the reason for the distortion.
> 
> "Bernd Michler" <shr### [at] gmxde> wrote in message
> news:402f29f4@news.povray.org...
> 
>>The Airplane wings looks distorted.
>>
>>
>>"Supriyo Bhattacharya" <sbh### [at] lycoscom> schrieb im Newsbeitrag
>>news:402eed93@news.povray.org...
>>
>>>Hi everybody
>>>Please provide me with valuable critique regarding the degree of reality
>>
>>and
>>
>>>any other aspect you migth want to consider. Also does anybody have
> 
> better
> 
>>>suggestions as how to generate realistic ground scene and clouds. For my
>>>scene,I used a satellite image from NASA, which I projected on a plane.
> 
> I
> 
>>>used bozo texture in a transparent plane on the top of the first plane
> 
> in
> 
>>>order to generate clouds. Does anyone have better ideas. Also, how to
>>
>>create
>>
>>>the sensation of fog on the horizon.
>>>
>>>Thanks in advance....
>>>
>>>
>>>
>>
>>
> 
> 
it maybe a matter of perspective, but the startboard wing
looks like you could scale its length down by a third

distance between the engines on each side would then look
about right as well

something about the trailing edge flaps/slats doesn't look
right either, is it in a banking climb ?

cabin lights maybe?

stephen


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From: Florian Brucker
Subject: Re: Boeing 747 with radiosity, bozo clouds and more
Date: 15 Feb 2004 07:03:31
Message: <402f6013$1@news.povray.org>
> Please provide me with valuable critique regarding the degree of reality and
> any other aspect you migth want to consider. 
Nice model!

I think the lighting is not perfect, yet: Ground is dark light in the 
night, but your plane is way too bright IMHO.

Keep up the good work!
Florian


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From: Skip Talbot
Subject: Re: Boeing 747 with radiosity, bozo clouds and more
Date: 15 Feb 2004 16:08:50
Message: <402fdfe2$1@news.povray.org>
I'm sure the wings aren't different lengths by a factor of three.  An error
like that does not escape detection.  The wings are bent upwards
considerably, which people are not used to seeing and this is the perfect
perspective to distort that.  Its also a matter of the camera angle.  The
wide angle is stretching the starboard wing out, the nose, and tail as well.
Lowering the angle and putting the camera at maybe a quarter angle to the
aircraft would alleviate some of these issues.

Skip


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From: Hughes, B 
Subject: Re: Boeing 747 with radiosity, bozo clouds and more
Date: 15 Feb 2004 16:27:48
Message: <402fe454$1@news.povray.org>
"Skip Talbot" <sta### [at] uiucedu> wrote in message
news:402fdfe2$1@news.povray.org...
> wide angle is stretching the starboard wing out, the nose, and tail as
well.
> Lowering the angle and putting the camera at maybe a quarter angle to the
> aircraft would alleviate some of these issues.

It looks to me as though the camera is very far away and using a very narrow
FOV. Perhaps moving it closer to the plane and raising its 'angle' (or
lowering 'direction') could also prevent some of the line-of sight flattened
appearance, or binocular effect, as I call it.

-- 
Bob H.
http://www.3digitaleyes.com


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From: stephen parkinson
Subject: Re: Boeing 747 with radiosity, bozo clouds and more
Date: 15 Feb 2004 17:22:58
Message: <402ff142$1@news.povray.org>
Skip Talbot wrote:
> I'm sure the wings aren't different lengths by a factor of three.  An error
> like that does not escape detection.  The wings are bent upwards
> considerably, which people are not used to seeing and this is the perfect
> perspective to distort that.  Its also a matter of the camera angle.  The
> wide angle is stretching the starboard wing out, the nose, and tail as well.
> Lowering the angle and putting the camera at maybe a quarter angle to the
> aircraft would alleviate some of these issues.
> 
> Skip
> 
> 

i meant to originally phrase it as "scale by a factor of two thirds",
but obviously had brain-finger communication problem

stephen


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From: Supriyo Bhattacharya
Subject: Re: Boeing 747 with radiosity, bozo clouds and more
Date: 15 Feb 2004 20:20:41
Message: <40301ae9@news.povray.org>
I tried to post to the group, but accidentally it went to bob hughes email
address. I am sorry for that. I am reposting it. What I wanted to say is:
The distortion of the wings is probably due to the telephoto effect in
which, objects away from the camera appear larger than the objects close by.
Please consider the follwing parameters of the image, plane length: 100
units, camera distance: 750 units, camera angle of view: 10.5 deg.

Here is another image with the lights on.
Supriyo

ps. Would like to thank Skip for telling me about radiosity.


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