POV-Ray : Newsgroups : povray.advanced-users : Color matching functions : Re: Color matching functions Server Time
18 Apr 2024 21:00:52 EDT (-0400)
  Re: Color matching functions  
From: Alain
Date: 22 Mar 2017 18:35:10
Message: <58d2fc1e@news.povray.org>
Le 17-03-22 à 04:27, Mike Horvath a écrit :
> On 3/21/2017 11:12 PM, Mike Horvath wrote:
>> The CMFs I am currently using are in 5nm steps from 360nm to 830nm,
>> which is 95 steps total.
>>
>> Are there more detailed samples? Are there more detailed samples for D65
>> illumination too? The CMFs and illuminations should have the same number
>> of steps in the same range, since my script is set up to iterate through
>> both sets of samples at the same time. Not sure what to do if the sample
>> tables aren't the same sizes.
>>
>> Thanks.
>>
>>
>> Mike
>
>
> Wikipedia says you can just interpolate between the 5nm points to
> generate narrower ones. Lightsys uses a spline apparently.
>
>
> Mike

Yes, Lightsys use splines everywhere.
Most of the time, a linear spline is enough, but you may want to use 
some other kind of spline.


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