POV-Ray : Newsgroups : povray.text.scene-files : Planetarium : Re: Planetarium Server Time
21 Jun 2024 09:47:49 EDT (-0400)
  Re: Planetarium  
From: Mike Horvath
Date: 15 Sep 2018 08:11:44
Message: <5b9cf700$1@news.povray.org>
On 9/15/2018 6:58 AM, Stephen wrote:
> On 15/09/2018 11:43, Mike Horvath wrote:
>> I have textures, but do not know how to orient them with respect to 
>> the axial tilt, orbit and sun. Is anyone familiar with how to do this?
>>
>>
>> Mike
> 
> For Z up Left handed scenes.
> 
> 
> texture {
>    pigment {
>      image_map{
>        png "F:\Graphics\B3D Data\Maps\Planets\Earth\EarthMap2.png"
>        interpolate 2
>        map_type 1
>      }
>      rotate    <20.000,0.000,0.000>
>    }
> 
> Then for orientation in an orbit. Rotate the sphere the planet texture 
> will follow.
> 

Thanks. But which direction does the axis tilt with respect to the Sun 
on a given day?


Mike


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