POV-Ray : Newsgroups : povray.newusers : Wavelength to RGB converter? : Re: Wavelength to RGB converter? Server Time
4 Nov 2024 17:34:00 EST (-0500)
  Re: Wavelength to RGB converter?  
From: Christopher James Huff
Date: 28 Feb 2003 20:49:14
Message: <cjameshuff-6A6C5B.20444028022003@netplex.aussie.org>
In article <1fr4a7h.44sdcb1jqm0yuN%kaveh@delete_this.focalimage.com>,
 kav### [at] delete_thisfocalimagecom (Kaveh) wrote:

> Is there an .inc file that converts a wavelength to the approximate
> equivalent RGB components? I am looking for perfect accuracy. An
> approximate look-up table will do.

You contradict yourself. Perfection or approximation, pick one...only an 
approximation is possible though.
You want to find the RGB values that would mimic monochrome light of a 
specific wavelength? There are no includes that do this that I know of. 
You could find the sensitivity curves of typical human eyes, and work up 
a macro that uses a spline generated from these curves.

Some sites which might be useful:
http://www.adobe.com/support/techguides/color/colortheory/vision.html
http://www.yorku.ca/eye/specsens.htm

BTW, what do you want this for? I can't think of many uses for this, 
except as a part of a system for converting spectral data to RGB.

-- 
Christopher James Huff <cja### [at] earthlinknet>
http://home.earthlink.net/~cjameshuff/
POV-Ray TAG: chr### [at] tagpovrayorg
http://tag.povray.org/


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