Hi. A beginner here.

I’m new to Unity 3D, and I have a simple task.

I want to create an orb that looks like a glowing particle. Something along the lines of the original iPod backlight. I want the user to be able to drag the orb around the screen with sparkling light trails. Also, I’d like to make it so the dragging can follow a path. At the moment, the path I’d like it to follow is a large circle. For my program, I want the user to be able to drag my orb around the circle fastest. Thx in advance

I hate to tell you this, you need to start simpler. There are about 10 different things in that request, of which, someone will have to spoon feed you every piece.

Go to the documentation and start there, look up MonoBehaviour and OnMouseButtonDown, OnMouseMove and OnMouseButtonUp and setActive.

Next look for Camera and ScreenPointToRay to get a pointer into your scene from the camera.

Next look for Physics and Raycast to see what the user is pointing at.

With all the above, you can pick up and object and move it around. But that is only one way to move things around.

The biggest thing is that you need to familiarize yourself with the documentation and how the core of Unity works. People can spend hours just programming stuff you want, and you won’t learn a thing or, you can learn the nuts and bolts and be productive.