POV-Ray : Newsgroups : povray.tools.general : a tonemapping question : a tonemapping question Server Time
20 May 2024 04:48:23 EDT (-0400)
  a tonemapping question  
From: Jan Dvorak
Date: 3 Dec 2007 03:12:31
Message: <4753ba6f@news.povray.org>
Hello,
currently the tonemapping (megapov) affects each RGB channel 
independently. Is it possible to make it affect the luminace but not the 
overall color (hue, saturation)?

The color is perceived in the eye in a Lab format, luminace being 
treated logarithmically. I want to simulate this behavior to compress 
HDR images into LDR inside pov-ray.


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