POV-Ray : Newsgroups : povray.advanced-users : Speeding up media : Re: Speeding up media Server Time
22 Jan 2022 18:04:34 EST (-0500)
  Re: Speeding up media  
From: Ash Holsenback
Date: 12 Feb 2021 06:03:39
Message: <6026608b$1@news.povray.org>
On 2/12/21 2:33 AM, Thomas de Groot wrote:
> 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.
> 

already there: about 2/3 of the way down...
http://wiki.povray.org/content/Reference:Sampling_Parameters_%26_Methods


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