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"m@b" <sai### [at] googlemail com> wrote:
> It has been pointed out that "image_width" and "image_height" are
> built-in POV-Ray variables.
>
> Here is a corrected version of my answer:
>
> >
> > here is mt previous answer rotated into the x, z, plane:
> >
> > /////////////////////////////////////////////////////////////////////////
>
>
> #declare Image_W = 2592;
> #declare Image_H = 1944;
>
>
> // perspective (default, not required) camera
> camera {
> orthographic
> location <Image_W/2, 10000, Image_H/2,>
> look_at <Image_W/2, 0, Image_H/2>
> right x*Image_W/1944 // aspect
> //direction<3129.6857,3102.3533,0>
> focal_point < 563.2927, 0, 1366.9001>
> aperture 3.6171875
> // direction z // direction and zoom
> angle 16 // field (overides direction zoom)
> }
>
>
> box{<0,0,0>,<1,1,0.001>
> pigment {image_map {"D:/Files/Photos/Historic boats/027.JPG" once
> map_type 0 interpolate 2 } }
> finish {ambient 1 diffuse 0}
> scale <Image_W, Image_H, 1>
> rotate<90,0,0> // Rotate into the x,z plane
> }
>
> box{<0,0,0>,<900,2,-80> // Size
> pigment{rgb<1,0,1>} // Colour
> finish {ambient 1 diffuse 0} // Make it visible
> translate<88,1,88> // Move it about (the y*1 puts it above
> the image box)
> }
>
>
>
> > ////////////////////////////////////////////////////////////////////////
Good evening im hoping any one can see this message i notice something when
scrolling through this code.
location <Image_W/2, 10000, Image_H/2,>
> look_at <Image_W/2, 0, Image_H/2>
i notice the predefined width and height were divided by 2. why ? and what does
it do exactly. thank you
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