POV-Ray : Newsgroups : povray.beta-test : Panoramic camera fix on 180 degrees - a bug? Server Time
23 Dec 2024 14:03:22 EST (-0500)
  Panoramic camera fix on 180 degrees - a bug? (Message 1 to 5 of 5)  
From: Friedrich Lohmüller
Subject: Panoramic camera fix on 180 degrees - a bug?
Date: 11 May 2010 20:54:53
Message: <4be9fc5d@news.povray.org>
With POV-Ray 3,7 beta37a and  3.6.2 (Win64):
camera {
   panoramic
   location <0, 0,  0>
   look_at  <0, 0,  1>
   angle    360
}

Horizontally and vertically!
Vertically may be okay,


In POV-Ray Reference:
"It uses a type of cylindrical projection to be able to use viewing
angles larger than 180 degrees with a tolerable lateral-stretching
distortion. The angle keyword is used to determine the viewing angle."

Did I missed something or
is this really a bug which I should add to Flyspray?
????

Friedrich

//-----------------------------------------
email:  Fri### [at] t-onlinede
homepage: http://www.f-lohmueller.de/
//-----------------------------------------


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From: clipka
Subject: Re: Panoramic camera fix on 180 degrees - a bug?
Date: 12 May 2010 03:19:42
Message: <4bea568e$1@news.povray.org>

> With POV-Ray 3,7 beta37a and  3.6.2 (Win64):
> camera {
> panoramic
> location <0, 0, 0>
> look_at <0, 0, 1>
> angle 360
> }

> Horizontally and vertically!
> Vertically may be okay,


For a sky sphere you'll want the "spherical" camera.


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From: clipka
Subject: Re: Panoramic camera fix on 180 degrees - a bug?
Date: 12 May 2010 03:35:05
Message: <4bea5a29$1@news.povray.org>


> In POV-Ray Reference:
> "It uses a type of cylindrical projection to be able to use viewing
> angles larger than 180 degrees with a tolerable lateral-stretching
> distortion. The angle keyword is used to determine the viewing angle."

Apparently this is a documentation error - either that, or the panoramic 
camera has never worked the way it was intended to; POV-Ray 3.6.2 shows 
the same behavior.


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From: Friedrich Lohmüller
Subject: Re: Panoramic camera fix on 180 degrees - a bug?
Date: 12 May 2010 06:05:03
Message: <4bea7d4f$1@news.povray.org>
clipka schrieb:

> 
>> In POV-Ray Reference:
>> "It uses a type of cylindrical projection to be able to use viewing
>> angles larger than 180 degrees with a tolerable lateral-stretching
>> distortion. The angle keyword is used to determine the viewing angle."
> 
> Apparently this is a documentation error - either that, or the panoramic 
> camera has never worked the way it was intended to; POV-Ray 3.6.2 shows 
> the same behavior.


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From: Friedrich Lohmüller
Subject: Re: Panoramic camera fix on 180 degrees - a bug?
Date: 12 May 2010 06:08:46
Message: <4bea7e2e@news.povray.org>
clipka schrieb:

> 
>> In POV-Ray Reference:
>> "It uses a type of cylindrical projection to be able to use viewing
>> angles larger than 180 degrees with a tolerable lateral-stretching
>> distortion. The angle keyword is used to determine the viewing angle."
> 
> Apparently this is a documentation error - either that, or the panoramic 
> camera has never worked the way it was intended to; POV-Ray 3.6.2 shows 
> the same behavior.
Thanks for clearing this!

Your right: The spherical camera works correkt for skyspheres!

Friedrich

//-----------------------------------------
email:  Fri### [at] t-onlinede
homepage: http://www.f-lohmueller.de/
//-----------------------------------------


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