Warp wrote:
> Gilles Tran <tra### [at] inapginrafr> wrote:
> 
>>Actually these sky images are fully spherical, the website just doesn't show
>>the bottom half(pure black of course) in the previews...
> 
> 
>   I see. In that case it's enough to do:
> 
> sky_sphere
> { pigment { image_map { jpeg "whatever" map_type 1 } }
> }

Yes, the recent website got me thinking, and creating an image to put on 
the background was just what I needed.  My camera to create the image 
was this:

camera {
   spherical
   location <0,0,0>      // position
   look_at  <0,0,1>      // view
   angle 360             // horizontal degrees
         180             // vertical degrees
}


And the sky sphere to use the output is this:

sky_sphere {
   pigment {
     image_map{ tga "starynight.tga"    map_type 1   }
                 rotate x*-100
   }
}

(The rotate was needed so that the moon on the sky image was where I 
wanted it.)

It was perfect for putting a moon in the sky in my animation, so it 
would always be the same angle, no matter where I placed the camera.

Tom A.

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