POV-Ray : Newsgroups : povray.advanced-users : Strange media artefact : Re: Strange media artefact Server Time
19 Jun 2021 17:40:28 EDT (-0400)
  Re: Strange media artefact  
From: Thomas de Groot
Date: 10 Feb 2021 02:39:39
Message: <60238dbb@news.povray.org>
Op 09/02/2021 om 13:56 schreef William F Pokorny:
> On 2/8/21 2:38 PM, Bald Eagle wrote:
>>
>> While working out some media stuff for Mike, I ran a a quick media 
>> test to just
>> make sure I had the standard part working, and I got some odd results.
>>
>> Perhaps someone could render this and tell me why the center gives me 
>> a nice x
>> gradient, but off to the sides I get those weird fans / lines.
>>
> 
> Been now some years since I was digging around in that code, but if I'm 
> remembering my "things-look-fishy-there" list correctly, the short 
> answer is you need to increase the sampling. Try:
> 
>   samples 33
> 
[snip]

Wow! Some nice piece of info there!

I was late testing this media and found also that samples were the 
culprits.

I have one question about them: can samples still be used with two 
parameters with method 3? The Wiki is confusing about this, and I 
wondered if it was a legacy from method 1 or 2, but not necessary anymore.

-- 
Thomas


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