POV-Ray : Newsgroups : povray.binaries.images : nest plants : Re: nest plants Server Time
28 Nov 2023 18:33:55 EST (-0500)
  Re: nest plants  
From: Mike Miller
Date: 14 Nov 2023 16:05:00
Message: <web.6553dfc2d32cb1a8f22cdb33dabc9342@news.povray.org>
William F Pokorny <ano### [at] anonymousorg> wrote:
> On 11/14/23 07:08, Mike Miller wrote:
> > The tan/yellow areas in the hillside?...that's HDRI BG.
> Using exr ?  There is a bug where the HDRI has values which exceed a
> half float(a). IIRC. Values end up as HUGE_VAL and you get artifacts
> that basically won't go away with normal -ish tweaking.
> Bill P.
> (a) - POV_Ray's current exr support only works with half float (16 bit)
> exr files and many .exr files found today on the internet use the full
> 32 bit float format and those, sometimes, have values > 16 bits float max.

Now that you mention this, I've been getting some weird and sporadic lighting
'blow-outs' depending on what objects I have hidden when using a 32 bit HDRI
background. I will drop it to 16 bit and report back.

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