POV-Ray : Newsgroups : povray.beta-test : Testing Required: Mosaic Pretrace and Abort-Continue : Re: Testing Required: Mosaic Pretrace and Abort-Continue Server Time
23 Apr 2024 18:56:30 EDT (-0400)
  Re: Testing Required: Mosaic Pretrace and Abort-Continue  
From: clipka
Date: 16 Jun 2017 11:54:36
Message: <5943ff3c$1@news.povray.org>
Am 16.06.2017 um 12:46 schrieb omniverse:
> clipka <ano### [at] anonymousorg> wrote:
>> Hi folks,
>>
>> examining some mosaic pretrace related code, I've come across some stuff
> --->8---
>> I /think/ the problematic case would be when `+spN +ep1 -a` with N>1 is
>> used, i.e. mosaic pretrace starting from any resolution and ending at
>> full resolution, with no anti-aliasing; but I'm not sure whether it'll
>> actually go wrong, and/or whether other cases might also be affected.
> 
> Using sp>1 (and tried ep>1<sp too) getting a screen pattern in final image.
> Every other line has black for every other pixel, while every other line and
> column is rendered correctly.
> 
> Another thing, it can cause the render window to show same screen pattern, yet
> with transparent checkerboard background. I think it must be when final pass is
> interrupted and continue trace used afterward.
> So maybe if not final pass during stop it won't affect render window.

Yes, that pretty much fits my expectations. So looks like I'm onto
something.


> And confirm same as Kenneth found with continue and no render window, if doing
> same here, except using command line instead.

I'm pretty sure that's entirely unrelated.


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