POV-Ray : Newsgroups : povray.documentation.inbuilt : looks_like suggestion : Re: looks_like suggestion Server Time
27 Jan 2022 21:00:24 EST (-0500)
  Re: looks_like suggestion  
From: Mike Horvath
Date: 8 Sep 2016 18:07:29
Message: <57d1e121$1@news.povray.org>
On 9/8/2016 5:15 PM, Alain wrote:
> Le 16-09-08 à 00:58, Mike Horvath a écrit :
>> On 9/8/2016 12:46 AM, Mike Horvath wrote:
>>> http://www.povray.org/documentation/view/3.6.2/137/
>>>
>>> On this page it says:
>>>
>>> "It is a good idea to define both things, the light source and the
>>> looks_like object, at the origin, and then translate them to their right
>>> place."
>>>
>>> However, this is *not* a good idea for parallel light sources. Doing so
>>> causes the light to emit from the light source's original position (the
>>> origin) instead of the later position.
>>
>> http://www.povray.org/documentation/3.7.0/r3_4.html#r3_4_4_1_7
>>
>> This section only shows an example of how *not* to properly set up the
>> looks_like section. It should explain how to do it *correctly* too. But
>> I don't know what is correct.
>>
>>
>> Mike
>
> The looks_like object is always centered at the light's location.
> So, you should create your light_source at any location while
> constructing the looks_like object around the origin.
>
>


Can I update the wiki page with the additional information? I already 
have a wiki account, and am logged in, but the article is locked.

Mike


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