[vtkusers] VTKParametricEllipsoid performance

[Jose Ignacio Prieto]

Hi Andrew,
I am contacting you because of the parametric ellipsoid class you created.
It works fine for me with a resolution of 64 in the lines:

        parametricFunctionSource->SetUResolution(1024);

        parametricFunctionSource->SetVResolution(1024);

        parametricFunctionSource->SetWResolution(1024);

        parametricFunctionSource->SetScalarModeToNone();

        parametricFunctionSource->GenerateTextureCoordinatesOff();


        parametricFunctionSource->SetParametricFunction(Ellipsoid);

        parametricFunctionSource->Update();

but when I move to a bigger resolution like 1024 it gets completely
slow. I tried moving to OpenGL mapper and actor but nothing. My
graphics card is an AMD W7000 (fast) so its not hardware problem. What
can I do to tweak it and get a smoother look?


Thanks!


Ignacio Prieto



-- 
José Ignacio Prieto
Software developer
Biomedical Imaging Center
Pontificia Universidad Catolica de Chile
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