If there are many objects rendered in one actor,
and I want to highlight one of the objects I clicked.
there is a example:
there are thousands sphere rendered in one actor, I used vtkCellPicker to select a cell, and I want to highlight the sphere to which this cell belongs.
There are now two solutions：
- Change the data of the selected object in the actor，
- Use the selected object data to build a highlighted actor.
I want to know which of these two solutions is better, and their advantages and disadvantages.