"Oleguer Vilella" <ole### [at] infonegociocom> wrote in message
news:41481108$1@news.povray.org...

> Some of the objects appear also moved.
> I'm thinking....

When you scale an object, the only point of the object that won't move is the
point that rests at <0,0,0> (assuming that you're scaling all axis).

To understand what is happening, try the following scene using different values
for myScale. Note that we divide the radius of the spheres by the value of
myScale. This means that the scale size doesn't affect the radius of the
spheres, only their positions.

camera {
  location  <0.0, 0.0, -10.0>
  look_at   <0.0, 0.0,  0.0>
}

light_source {
  <0, 0, 0>            // light's position (translated below)
  color rgb <1, 1, 1>  // light's color
  translate <-30, 30, -30>
}

#declare myScale = 1;

sphere{
  0,0.25/myScale
  scale myScale
  pigment{rgb<1,0,0>}
}

sphere{
  1,0.25/myScale
  scale myScale
  pigment{rgb<0,1,0>}
}

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