POV-Ray : Newsgroups : povray.beta-test : Same scene renders different in v3.7beta34 versus v3.62 : Re: Same scene renders different in v3.7beta34 versus v3.62 Server Time
6 Oct 2024 00:24:40 EDT (-0400)
  Re: Same scene renders different in v3.7beta34 versus v3.62  
From: Warp
Date: 3 Sep 2009 10:42:46
Message: <4a9fd5e6@news.povray.org>
Warp <war### [at] tagpovrayorg> wrote:
>   However, there are situations where you precisely *don't want* that.
> You want raw pixel values, and nothing else, as I exemplified above.

  I just figured out the *perfect* example of a situation where you want
raw, linear pixel values which are *not* gamma-corrected: When you are
rendering an image which will be used as input to create a heightfield.

  There 0.5 should mean exactly half height, not a height of 0.73.

  clipca asked some time ago *why* one would ever want linear, uncorrected
pixel values. There you have your perfect example.

-- 
                                                          - Warp


Post a reply to this message

Copyright 2003-2023 Persistence of Vision Raytracer Pty. Ltd.