POV-Ray : Newsgroups : povray.bugreports : focal_point and camera scaling : Re: focal_point and camera scaling Server Time
19 Jun 2021 05:45:06 EDT (-0400)
  Re: focal_point and camera scaling  
From: Mike Horvath
Date: 12 Feb 2018 16:06:06
Message: <5a8201be$1@news.povray.org>
I also tested camera translation, and it seems the focal point is not 
translated along with the camera. The focal point stays at the location 
it was originally set to occupy.

Mike


On 2/12/2018 5:29 AM, clipka wrote:
> Am 12.02.2018 um 06:59 schrieb Mike Horvath:
>> See thread:
>>
>>
http://news.povray.org/povray.advanced-users/thread/%3C5a7f9271%241%40news.povray.org%3E/
>>
>>
>>
>> I think it would be more intuitive than the current behavior if
>> focal_point were to scale along with the rest of the camera. E.g., if
>> the original focal_point is <3,4,5>, then scaling the camera by 3 should
>> move the focal_point to <9,12,15>. The current existing behavior is a
>> bit weird IMO.
> 
> I agree.
> 
> We should also consider scaling the aperture size along the way.
> 
> Maybe all depending on the order in which camera statements are done. E.g.
> 
>      camera_location <0,0,0>
>      focal_point <1,2,3>
>      scale 2
>      aperture 10
> 
> should scale the focal point but not the aperture size.
> 
> 
> Just brainstorming here ATM.
>


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