POV-Ray : Newsgroups : povray.tools.general : Norbert Kern's 'Position-Finder' code-- redux : Re: Norbert Kern's 'Position-Finder' code-- redux Server Time
14 Apr 2024 18:43:04 EDT (-0400)
  Re: Norbert Kern's 'Position-Finder' code-- redux  
From: Thomas de Groot
Date: 26 Sep 2018 03:39:53
Message: <5bab37c9$1@news.povray.org>
On 26-9-2018 8:32, Thomas de Groot wrote:
> Something else though, troubles me from even before your work. There are 
> scenes where the results from the trace are significantly away from the 
> initial screen position given to the macro. I shall try to get a demo 
> scene together where this is demonstrated.

I have got a test scene where the problem is demonstrated. I attach it 
here, together with a slightly changed version of your position finder 
and Gilles Tran's Visibility Test macro (which might be necessary). This 
last one I often use to get the right zoom value for the camera in order 
to calculate traces exactly within the visible screen scene. If I make 
myself understood... I don't think however, from my testing, that that 
influences the issue at hand in any way.

I am curious to learn what you think.


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