POV-Ray : Newsgroups : povray.off-topic : Physically based rendering : Re: Physically based rendering Server Time
6 Oct 2024 08:26:57 EDT (-0400)
  Re: Physically based rendering  
From: Thomas de Groot
Date: 26 Jun 2015 10:52:17
Message: <558d6721$1@news.povray.org>
On 26-6-2015 14:55, clipka wrote:
> Am 26.06.2015 um 09:53 schrieb Thomas de Groot:
>> On 25-6-2015 20:00, And wrote:
>>> Just like the opinion clipka have answered you the other day, an
>>> emission sphere
>>> in the sky is too small to render. I always use the parallel light to
>>> simulate the sun light and it is very convenient. If you would like to
>>> place a
>>> white look-like object, the sun's color should like this:
>>> rgb<1,1,1>*10000.
>>> Is a very large quantity.
>>>
>>>
>>
>> Depending on the scene, the multiplicator used can be less than that. In
>> my experiments shown in p.b.i I used a multiplicator of 2 which works
>> quite well. Much higher values overexpose the scene.
>
> Maybe there's a misundertanding here:
>
> The multiplicator is needed on the looks_like object; the light_source
> brightness should stay the same if you don't use fade_power.
>

True enough. THere was a misunderstanding though from my side (of 
course) as I had also added an emission to the looks_like object which 
it doesn't need in fact with And's suggestion.

-- 
Thomas


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