[Paraview] save 'Surface LIC' as texture

[Burlen Loring]

cd into VTK/Rendering/OpenGL and grep for  vtkTextureIO::Write, you'll 
find all the spots I was saving textures. There are some preprocessor 
macros to enable it. Good luck.

On 6/5/2015 1:34 AM, Göbbert, Jens Henrik wrote:
> Hi Burlen,
>
> thanks for your answer.
> But somehow bad news for me :)
>
> I will try to add this feature than - it might help others, too.
> Can you give me some more hints where I can find this mechanism for 
> sucking textures back from the gpu
> and perhaps even how to use it for debugging?
>
> Best
> Jens Henrik
>
> ------------------------------------------------------------------------
> *From:* Burlen Loring [burlen.loring at gmail.com]
> *Sent:* Thursday, June 04, 2015 5:45 PM
> *To:* Göbbert, Jens Henrik; paraview at paraview.org
> *Subject:* Re: [Paraview] save 'Surface LIC' as texture
>
> I think it could be done if you're willing to hack into PV. There is 
> already some mechanism in there for sucking textures back from the gpu 
> and writing them to disk for debugging. It's not exactly what you need 
> but at least will illustrate pulling data from GPU.
>
> a potential issue with this idea is that the result from the LIC is 
> very view dependent, you may be restricted to use same view settings 
> in your app/blender. maybe better just to write the LIC shader in blender.
>
> On 06/04/2015 04:07 AM, Göbbert, Jens Henrik wrote:
>> Hello everyone,
>>
>> I am using ParaView for some time now and love its representation of 
>> vector fields on surfaces by
>> 'SurfaceLIC' 
>> (http://www.paraview.org/Wiki/ParaView/Line_Integral_Convolution). 
>> <http://www.paraview.org/Wiki/ParaView/Line_Integral_Convolution%29.>
>> Beyond that, lots of other representations of scientific data are of 
>> course simply great ....
>>
>> I would like to save this textures and the geometrie (incl. texture 
>> coordinates) of the surface
>> to view it later in our own OpenGL virtual reality application (or 
>> Blender).
>>
>> ParaView can load textures 
>> (http://www.paraview.org/Wiki/ParaView:Texture),
>> but how can I save them ?
>>
>> Does anyone has an idea ... including source code modifications, 
>> which might make things like that possible.
>>
>> Best,
>> Jens Henrik
>>
>>
>>
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