POV-Ray : Newsgroups : povray.advanced-users : Speeding up media : Re: Speeding up media Server Time
6 Jul 2022 19:31:37 EDT (-0400)
  Re: Speeding up media  
From: Thomas de Groot
Date: 15 Feb 2021 02:37:16
Message: <602a24ac@news.povray.org>
Op 14/02/2021 om 20:38 schreef Ash Holsenback:
> On 2/14/21 2:33 PM, Ash Holsenback wrote:
>> On 2/14/21 12:32 PM, Alain Martel wrote:
>>> Le 2021-02-14 à 11:02, Ash Holsenback a écrit :
>>>
>>>> another question: are variance, confidence and ratio valid in method 
>>>> 3... given current narrative i'd say yes to the first two and no on 
>>>> the last
>>>>
>>>> made some progress... here's what i have so far
>>>> http://wiki.povray.org/content/Reference:Sampling_Parameters_%26_Methods 
>>>>
>>>
>>> The confidense and ratio are to adjust the samples numbers between 
>>> the various intervals and are not used.
>>> As for variance, it also seems to be method 1 and 2 specific. It 
>>> don't seems to have any effect when using method 3.
>>
>> are you sure about that... given that the narrative after Sampling 
>> Method 3: uses the term variance, then later on in the narrative in 
>> Sampling method 1: last paragraph ( above the note ) links variance 
>> and confidence together... did i make a bad leap? the role of ratio is 
>> a couple of paragraphs up... please expand on this a bit ;-)
> 
> one more thing... would it be accurate to say that most if not all those 
> media related keywords work for all three methods, however some of their 
> roles have changed.

Give that man a beer!

Much better assuredly.

Pending more learned answers on your last question, I would be wary to 
affirm this. The point being probably - if those are silently ignored by 
method 3 as Alain states - that people will wring themselves into hoops 
only to see some 'improvements' to their media, without any results 
obviously. If, on the other hand, those are /not/ ignored, we need to be 
dead sure about it. What does the code say, Mr Pokorny?

-- 
Thomas


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