[vtkusers] Questions about vtkPolyData

[Jonathan Borduas]

Hi Patrick,

You can do per-vertex and per-cell coloring.
https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/TriangleColoredPoints
https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ColorCellsWithRGB

For UV texture shading:
https://www.vtk.org/Wiki/VTK/Examples/Cxx/Texture/TexturedSphere
http://scylardor.fr/2013/05/06/making-multi-texturing-work-with-vtk/

To try some of the possibilities of VTK, you want to use ParaView. This application is heavily based on VTK and can give you a good sense of what is feasible with VTK.
https://www.paraview.org/download/

Best

Jonathan

From: Patrick Bergeron <pbergeron at spiria.com>
Sent: Friday, June 08, 2018 12:58 PM
To: Jonathan Borduas <jonathan.borduas at caboma.com>; vtkusers at vtk.org
Subject: Re: [vtkusers] Questions about vtkPolyData

Thanks. Do these values make it into vertex shaders?

From: Jonathan Borduas <jonathan.borduas at caboma.com<mailto:jonathan.borduas at caboma.com>>
Date: Thursday, June 7, 2018 at 7:18 PM
To: Patrick Bergeron <pbergeron at spiria.com<mailto:pbergeron at spiria.com>>, "vtkusers at vtk.org<mailto:vtkusers at vtk.org>" <vtkusers at vtk.org<mailto:vtkusers at vtk.org>>
Subject: Re: [vtkusers] Questions about vtkPolyData

Hey

All these examples may help.

https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/ColoredPoints

https://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/FieldData

https://www.vtk.org/Wiki/VTK/Examples/Cxx/VTKConcepts/Scalars

Best,

Jonathan Borduas


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________________________________
From: vtkusers <vtkusers-bounces at public.kitware.com<mailto:vtkusers-bounces at public.kitware.com>> on behalf of Patrick Bergeron <pbergeron at spiria.com<mailto:pbergeron at spiria.com>>
Sent: Thursday, June 7, 2018 7:08:43 PM
To: vtkusers at vtk.org<mailto:vtkusers at vtk.org>
Subject: [vtkusers] Questions about vtkPolyData

Hi everyone.

How would I go about specifying multiple sets of user attributes on a per-vertex basis on a polydata?

For example, hlet’s say I would like multiple sets of uv coordinates, normal, colors, int attributes, etc?

Thanks
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