POV-Ray : Newsgroups : povray.documentation.inbuilt : Default values in v3.8.0 : Re: Default values in v3.8.0 Server Time
7 Dec 2021 14:06:52 EST (-0500)
  Re: Default values in v3.8.0  
From: Kenneth
Date: 20 Sep 2018 16:20:01
Message: <web.5ba400cdc511635aa47873e10@news.povray.org>
clipka <ano### [at] anonymousorg> wrote:
> In POV-Ray v3.8.0, default values will be chaned as follows:
> - The `ambient` setting now defaults to zero instead of 0.1.

Great! Nice and consistent with the other newer finish defaults.

> - The default pigment is now plain white (rgb <1,1,1>) instead of black.

I''m curious about the reason for this change. (Personally, it will take some
getting used to.) Is it perhaps due in some philosophical way to the change of
#default ambient to 0.0 (where pure shadows would now be pure black instead of
'lit' with ambient 0.1? Meaning, it would be hard to discern a previously
un-pigmented object-- black until now-- from it's now-black shadow duo to
ambient 0.0?)
> - The camera `right` vector length now defaults to the output image
> aspect ratio (presuming square pixels; for example, at 1280x1024 the
> vector will have a length of 1,25) instead of 1.33. The rules governing
> the direction of the vector remain unaffected.

I don't usually mess with   right  x*image_width/image_height,  and run
different aspect-ratio images simply by choosing another entry in quickres.ini.
(1280X720 instead of 800X600, for example.)  Will this change affect the visual
result of the render (in some *strange* way), if I continue to use my simple
scheme? Sorry if my question seems naive, but it's not clear if my quickres.ini
entries would also need changing.

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