VTK is slow, what is wrong?
We have heard people say that VTK is really slow. In many of these cases, changing a few parameters can make a huge difference in performance. If you find that VTK is slower than other visualization systems running the same problem first take a look at the FAQ section dealing with large data: How to handle large data sets in VTK. Many of its suggestions will improve VTK’s performance significantly for many datasets. If you still find VTK slow, please let us know and send us an example (to mailto:kitware@kitware.com). In the past there have been some filters that simply were not written to be fast. When we come across one of these we frequently can make minor changes to the filter that will make it run much more quickly. In fact many changes in the past couple years have been this type of performance improvement.
