POV-Ray : Newsgroups : povray.binaries.images : Colony ship : Re: Colony ship Server Time
5 Jul 2024 02:20:03 EDT (-0400)
  Re: Colony ship  
From: Mike Horvath
Date: 25 Jan 2016 17:18:04
Message: <56a69f1c$1@news.povray.org>
On 1/25/2016 3:20 PM, Cousin Ricky wrote:
> Mike Horvath <mik### [at] gmailcom> wrote:
>> On 1/25/2016 9:02 AM, clipka wrote:
>>> Presuming the area light is supposed to simulate a structure somewhat akin to a
>>> long cylinder, I would set fade_distance to the radius of that structure; to get
>>> the proper behaviour along the length of the area light, I would suggest using
>>> area_illumination.
>>
>> I experimented with fade_distance by setting it to the radius of the
>> lamp object, but it makes the scene too dark.
>>
>>> For realism, fade_power should always be 2. Note that you may have to
>>> significantly increase the light source's brightness.
>
> Multiply the light source's color by (1 + pow (D / R, 2)) / 2, where R is the
> fade_distance, and D is the radius of the colony interior.
>
>


That worked, thank you!


Mike


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