@xXxGuitar511,

Actually I don't need it in my project, but there are
some forum members here looking for a solution about
this issue, it would be nice if you can program a
solution FOC.

I've tried different approach without success, I can make
the camera tracking objects without spin at 90 & 270 if
the object is flying staightly overhead, but the problem
is my code can't apply to other objects that are flying
in different directions.

What I'm suppose to do is the camera is on the world center,
number of objects are flying around the world, you're free
to click on any object and the camera will turn to looking
at the object and start tracking it all the way.