Under many circumstances
just two vectors in the camera statement are all you need to position the
camera: location and look_at vectors. For example :
camera {
location <3,5,-10>
look_at <0,2,1>
}
The location is simply
the x, y, z coordinates of the camera. The camera can be located anywhere
in the ray-tracing universe. The default location is <0,0,0>. The look_at
vector tells POV-Ray to pan and tilt the camera until it is looking at
the specified x, y, z coordinates. By default the camera looks at a point
one unit in the z-direction from the location.
The look_at modifier should
almost always be the last item in the camera statement. If other camera
items are placed after the look_at vector then the camera may not continue
to look at the specified point.