[vtkusers] Make Smooth Isosurfaces

Bill Lorensen bill.lorensen at gmail.com
Thu Oct 29 16:59:25 EDT 2009


What do you mean by rough? Perhaps the faces are flat shaded? How are
you displaying the model in vtk?

Are your isosurfaces composed of only triangles? If so, did you
provide surface normals at each point?

On Thu, Oct 29, 2009 at 4:30 PM, Sanket Jain <jainsanket1 at gmail.com> wrote:
> Hello Experts,
>
> I have just started to use VTK to fulfill my visualization needs. I am
> trying out few fundamental steps which would be crucial for my future
> development.
>
> I exported an  Finite Element Model (FEM) from COMSOL and wrote it as vtk
> unstructured grid in matlab (points, connections and data). I am just trying
> to read my vtk file and trying to visualize the isosurfaces at some value.
>
> The problem is the isosurfaces are very rough even when I increased the mesh
> density in my COMSOL model. I tried to perform the same task in paraview and
> even there i saw the same problem.
>
> Do you think that increasing the mesh density should solve it? I cannot
> increase the mesh density because of computational issues. Any ideas on this
> problem will be appreciated.
>
> Thank you,
>
> Sanket Jain
>
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