POV-Ray : Newsgroups : povray.advanced-users : Speeding up media : Re: Speeding up media Server Time
27 Jan 2022 21:54:49 EST (-0500)
  Re: Speeding up media  
From: Thomas de Groot
Date: 12 Feb 2021 02:33:43
Message: <60262f57@news.povray.org>
Op 11/02/2021 om 16:45 schreef Alain Martel:
> Le 2021-02-09 à 02:30, Thomas de Groot a écrit :
>> I don't know where in the wiki there was a line saying defaults being 
>> intervals 1 and samples 1,1. Of course, I cannot find that paragraph 
>> anymore (typical!); but you are right of course: default samples is 10.
>>
> You have a mixup between the old version 3.5 and newer version 3.6 
> documentations.
> 
> The format : samples 1,1
> is that of method 1 and 2. It's used to set the number of samples for 
> dark, bright intervals.
> It's a leftover from the pre 3.6 version when the default sampling 
> method was method 1. It demanded an intervals number large enough to 
> match the number of distinct illuminated areas along a tracing path. If 
> you had 20 spotlights shining through some media, then, you needed 40, 
> or more, intervals : One interval for each illuminated part and one 
> interval for each non-illuminated parts between the illuminated ones.
> 
> When using the default method 3, when you have two values for samples, 
> the second is silently ignored.

The wiki documentation then needs some updating here or a further 
elaboration.

-- 
Thomas


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