[Paraview] use stereo-ParaView on a 3D projector

2015-12-06 Thread Göbbert , Jens Henrik 
Hi everyone,


anyone out there, who has tried ParaView in combination with a 3d projector 
already?

Can you give me some information about the requirements and your experiences?

Any help, links and hints would be great.


I am wondering what minimum hardware and software is required.

I would like to use a projector, which already supports active 3d 
shutter-glasses like the Sony VPL-HW65es 
(http://www.sony.co.uk/pro/product/vpl-hw65es).

The best web-page describing possible stereo-setups I found was 
http://cismm.cs.unc.edu/core-projects/visualization-and-analysis/setting-up-a-simple-stereo-system.

But it might be a bit outdated.


--- quad-buffering required or not?

I read, that ParaView required support for quad-buffering if you want to use it 
on stereoscopic displays.

Is that true, or only true for stereo mode "Crystal Eyes"?

Because additionally I read, that ParaView has run with NVIDIA 3DTV on Geforce 
grafikcards, too, which have no quad-buffering support.

(... but the development of NVIDIA 3DTV has stopped with Windows 7 
(http://www.nvidia.com/object/3dtv-play-system-requirements.html) )

This seems to work, if stereo mode is set for example to "Checkerboard".

Hence, I wonder why there is no quad-buffering required for this setup.


--- stereo-ParaView on Windows 8+ connected to a 3d projector?

Is NVIDIA 3D Vision Pro still required to be able to send the stereoscopic view 
to a 3d projector on Windows 8+?

Windows 8+ has native support for stereoscopic displays 
(https://msdn.microsoft.com/en-us/library/windows/hardware/dn653361%28v=vs.85%29.aspx).

Does that mean, that the 3d projector has to be recognised as a stereoscopic 
display by Windows

and can ParaView then send its 3D view to the 3d projector via HDMI 1.4a+?


--- stereo-ParaView on Linux connected to a 3d projector?

What would I need beside an NVIDIA Quadro to use this under Linux?

Or can I use a non-Quadro card with a ParaView stereo-mode other than "Crystal 
Eyes"?


--- stereo-ParaView on Mac connected to a 3d projector?

...?


Sorry, lots of questions.

I hope you can give me any help, links or hints on that.


Best,

Jens

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Re: [Paraview] save 'Surface LIC' as texture

2015-06-07 Thread Göbbert , Jens Henrik 
Hi Burlen,

thanks a lot. I found the spots.

Best
Jens Henrik

P.S: if someone else searches for them, look here:
https://gitlab.kitware.com/vtk/vtk/blob/master/Rendering/LIC/vtkSurfaceLICPainter.cxx
 line 2693


From: Burlen Loring [burlen.lor...@gmail.com]
Sent: Friday, June 05, 2015 6:03 PM
To: Göbbert, Jens Henrik; paraview@paraview.org
Subject: Re: [Paraview] save 'Surface LIC' as texture

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.lor...@gmail.commailto:burlen.lor...@gmail.com]
Sent: Thursday, June 04, 2015 5:45 PM
To: Göbbert, Jens Henrik; paraview@paraview.orgmailto:paraview@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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Re: [Paraview] save 'Surface LIC' as texture

2015-06-05 Thread Göbbert , Jens Henrik 
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.lor...@gmail.com]
Sent: Thursday, June 04, 2015 5:45 PM
To: Göbbert, Jens Henrik; paraview@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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[Paraview] save 'Surface LIC' as texture

2015-06-04 Thread Göbbert , Jens Henrik 
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).
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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