too many renders when hitting accept
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
We get at least a few calls to vtkRenderWindow::Render for the first time accept is pressed.
Not yet sure why that happens.
When changing any parameters afterwards, hitting accept leads to 2 calls to vtkRenderWindow::Render().
The second is caused by the display representation widget watching to update itself on a queued connection, and updating itself causes another render.