Improve Point Serialization in vtkPResampleToImage
Improve Point Serialization in vtkPResampleToImage

The current technique can cause many small memory allocations and deallocations.
This fixes it by serializing all the point data in one big array.

SimVascular/VTK,keithroe/vtkoptix,SimVascular/VTK,SimVascular/VTK,keithroe/vtkoptix,SimVascular/VTK,keithroe/vtkoptix,SimVascular/VTK,keithroe/vtkoptix,keithroe/vtkoptix,keithroe/vtkoptix,keithroe/vtkoptix,SimVascular/VTK,SimVascular/VTK,keithroe/vtkoptix,SimVascular/VTK