I make a trackball when user click onto it, and I want to make sure that user can see it clearly both in bird eye map, and first person viewport.
First of all: Hello!
If I got you correctly, then have a look at that SO answer.
If I’m wrong, then add some explanatory pictures to your question.
@prisoner849 thank you very much! that works by setting a proper factor for distance from camera to the target. And it is simple.