[vtkusers] How to 'best' visualize meshed objects with VTK?

[David E DeMarle]

Also, avoid using many actors whenever possible. Besides volume
rendering, consider using a threshold filter to remove the empty cells
and then use simple surface rendering to show the rest.

David E DeMarle
Kitware, Inc.
R&D Engineer
28 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-371-3971 x109



2011/4/4 Dženan Zukić <dzenanz at gmail.com>:
> Is volume rendering applicable to your case?
> HTH
>
> On Tue, Mar 29, 2011 at 17:45, Petr Lorenz <petr.lorenz at ieee.org> wrote:
>>
>> Hello,
>>
>> I have a mesh = rectilinear grid, and objects meshed in this grid. To each
>> "cell" of the grid either an object is assigned, or the cell is left empty.
>> Now I want to visualize the non-empty cells with differently colored cubes
>> (cells) with a color corresponding to specific objects.
>>
>> The primitive way I used for the visualization is to create a
>> vtkCubeSource->vtkPolyDataMapper->vtkActor pipeline for each non-empty cell
>> and see in this way the meshed objects. However, the number of cells in a
>> typical mesh is about 1.000.000 with ca. 100.000 non-empty cells, which
>> results in very large processing time of VTK making any interactive usage
>> impossible.
>>
>> Does anybody have an idea how to do the visualization in a better way? Can
>> I maybe somehow use glyphing?
>>
>> Many thanks!
>> Petr
>>
>>
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>
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