[vtkusers] Rendering speed is window-size dependent - Example Script

[Mark Wyszomierski]

Hmm I really don't know because I only use VTK for volume rendering.
Maybe the difference is in your graphics board? What board do you have
vs what Wolfgang has?

Mark

On 1/26/07, Andrea Gavana <andrea.gavana at gmail.com> wrote:
> Hi Mark,
>
> > Oh I meant to ask, what mappers are you using? I guess this isn't
> > volume rendering that you're trying? With volume rendering you can set
> > the quality - not sure if it's the same for whatever you're using. Let
> > us know what classes you're using and maybe we can point something
> > out.
>
> This is the small part of the code in which VTK is involved:
>
> class Viewer(wxVTKRenderWindow):
>
>    def __init__(self, parent):
>
>        wxVTKRenderWindow.__init__(self, parent, -1)
>
>        self.ren = vtk.vtkRenderer()
>        self.GetRenderWindow().AddRenderer(self.ren)
>
>        reader = vtk.vtkUnstructuredGridReader()
>        reader.SetFileName("VTKExample.vtk")
>        reader.SetScalarsName("_I_PORV")
>
>        surfaceMapper = vtk.vtkDataSetMapper()
>        surfaceMapper.SetInputConnection(reader.GetOutputPort())
>        surfaceMapper.SetScalarRange((1e3, 2e6))
>
>        surfaceActor = vtk.vtkActor()
>        surfaceActor.SetMapper(surfaceMapper)
>
>        self.ren.AddActor(surfaceActor)
>
>
> That's all. So I have a vtkUnstructuredGridReader to read the grid
> stored in the file, a vtkDataSetMapper and a vtkActor. It's nothing
> special, just a small snippet. I visualize a 3D unstructured grid with
> "_I_PORV" set as a scalar.
>
> > Also, you're not compiled and running in debug mode are you?
>
> No, the only build I have made was the Release one, using Visual
> Studio .NET 2003. It was one month ago, but I don't think things have
> changed that much in this respect (i.e., Wolfgang is reporting no
> problems from his part) :-((((
>
> Thank you for your answer and your suggestions.
>
> Andrea.
>
> "Imagination Is The Only Weapon In The War Against Reality."
> http://xoomer.virgilio.it/infinity77/
>