POV-Ray : Newsgroups : povray.binaries.images : Photographic compression (50k) : Re: Photographic compression (50k) Server Time
17 Aug 2024 22:21:45 EDT (-0400)
  Re: Photographic compression (50k)  
From: Tek
Date: 10 Aug 2001 19:14:52
Message: <3b746aec@news.povray.org>
That looks so real! Great technique, I'll have to try it. :)

--
Tek
http://www.evilsuperbrain.com


Kari Kivisalo <kki### [at] pphtvfi> wrote in message
news:3B731A2A.4B783AE3@pp.htv.fi...
>
> Outputted from pov as 48 bit linear. Compressed in Photoshop
> using transfer curve (intensity only) based on a film response
> curve from Kodak site. It's a typical compression curve. Then
> gamma 2.2 corrected and converted to 24 bit.
>
> My tests with the Cornell box indicated that correct fade_distance
> for diffuse sources is same as source diameter. The spotlights
> use (90^2/falloff^2)*diameter as fade distance because of the
> directional nature of the source. I'm not sure if this is correct
> but it looks ok. Any lighting engineers here?
>
>
> _____________
> Kari Kivisalo


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