[Paraview] Applying a texture to a sphere

[David E DeMarle]

Don't load the texture as a data set.

Try this:
Sources->Sphere
Filters->Texture Map to Sphere
Properties Tab->Search ("Texture")
Under miscellaneous choose Load and navigate to your image.

The problem shown in the attached result is that the UV coordinates on the
sphere don't seem to map well to your projection. If you can define that
you can then create the texture coordinates in the Programmable filter
instead of the Texture Map to Sphere filter.


David E DeMarle
Kitware, Inc.
R&D Engineer
21 Corporate Drive
Clifton Park, NY 12065-8662
Phone: 518-881-4909

On Thu, May 4, 2017 at 8:45 AM, Michael Jackson <mike.jackson at bluequartz.net
> wrote:

> Example Image attached.
>
> I loaded the image into ParaView. Selected the filter to generate sphere
> coords for texture. Went to the display section and chose to color by the
> texture coords but I still have a flat image? Do I need to create a sphere
> source first, then combine my image that has texture coords with that
> sphere?
>
> --
> Michael A. Jackson
> BlueQuartz Software, LLC
> [e]: mike.jackson at bluequartz.net
>
> David E DeMarle wrote:
>
>> On Wed, May 3, 2017 at 4:10 PM, Michael Jackson
>> <mike.jackson at bluequartz.net <mailto:mike.jackson at bluequartz.net>> wrote:
>>
>>     I have an image that represents an sphere that was mapped to a 2D
>>     circle.
>>
>>
>> Unsure what you mean by this projection. Depending on what the layout it
>> might be hard or easy to assign U/V coordinates that pick the right
>> pixel for each location on the surface of the sphere.
>>
>>     I have the image as a .png. Is it possible to load that image and
>>     texture map it back to a sphere in ParaView?
>>
>>
>> There is a texture map to sphere filter which creates U/V coordinates on
>> a data set. Once the data has U/V coordinates, you can load and apply a
>> texture from the Display section of the Properties panel.
>>
>>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://public.kitware.com/pipermail/paraview/attachments/20170504/a80d32f8/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Screen Shot 2017-05-04 at 8.51.49 AM.png
Type: image/png
Size: 747553 bytes
Desc: not available
URL: <http://public.kitware.com/pipermail/paraview/attachments/20170504/a80d32f8/attachment-0001.png>