If you had the Superpatch, you could say:

#declare righthere=spline{
    0, <0,0,0>
    0.3, <0,0,1>
    1.0, <0,0,2>
}

#declare overthere=spline {
    0,<0,0,10>
    0.3,<0,0,10>
    0.6,<10,0,0>
    1.0,<0,0,10>
}

camera {location righthere(clock)
             look_at overthere(clock)
            angle 30
}

This is a more elegant and intuitive situation than setting up a
complicated knot of if then's.  If you want extremely smooth motion, insert
more points, or master cubic splines!



Chuck Roberts wrote:

> I have POV 3.0 and want to try a little animation. If I move a camera,
> say forward a little, turn right 90 degrees, then move forward some
> more, do I have to create 3 different POV scene files? Or is there some
> way to do this in a single POV scene file with animation?
>
> Thank you.

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