<div dir="ltr">Both of those options sound fairly challenging unless you have worked with VTK a lot. I do believe there have been some experiments integrating ParaView to Unity or Unreal. There is some effort going on right now to improve widgets and interaction in OpenVR/VTK/PV as well but I wouldn't subject someone to that unless they had a lot of VTK dev experience as it can get into the guts of VTK fairly quickly.<div><br></div><div><br></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, May 11, 2017 at 7:45 AM, David Tuckey <span dir="ltr"><<a href="mailto:david.tuckey@eleves.ec-nantes.fr" target="_blank">david.tuckey@eleves.ec-nantes.fr</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div style="font-family:arial,helvetica,sans-serif;font-size:12pt;color:#000000"><div><div><span style="font-family:arial,helvetica,sans-serif">Hello,</span><br><br><span style="font-family:arial,helvetica,sans-serif">I am currently working on scientific visualisation in virtual reality </span><br><span style="font-family:arial,helvetica,sans-serif">and am looking for ways to enhance the Paraview capabilities in this </span><br><span style="font-family:arial,helvetica,sans-serif">domain. I am using for my current tests a HTC Vive, but I am considering </span><br><span style="font-family:arial,helvetica,sans-serif">using a zSpace or a workbench in further works. The first goal is to be </span><br><span style="font-family:arial,helvetica,sans-serif">able to grab a plane and move it around in the virtual world to do live </span><br><span style="font-family:arial,helvetica,sans-serif">clipping of the objects, or move around a point to display live the </span><br><span style="font-family:arial,helvetica,sans-serif">streamlines at its location.</span><br><br><span style="font-family:arial,helvetica,sans-serif">A problem I am facing is that when objects in the scene are at the same </span><br><span style="font-family:arial,helvetica,sans-serif">location, I am never sure which one I will grab. Also while doing tests </span><br><span style="font-family:arial,helvetica,sans-serif">on VTK with OpenVR enabled, I could move around the representation of a </span><br><span style="font-family:arial,helvetica,sans-serif">basic vtkPlaneWidget without any effect on the position of it's bouding </span><br><span style="font-family:arial,helvetica,sans-serif">points or normal vector.</span><br><br><span style="font-family:arial,helvetica,sans-serif">I have two solutions in mind.</span><br><br><span style="font-family:arial,helvetica,sans-serif">1) The first solution is to modify ParaView's (and so VTK's) OpenVR </span><br><span style="font-family:arial,helvetica,sans-serif">scripts to allow better interaction and live pipeline modification. I am </span><br><span style="font-family:arial,helvetica,sans-serif">new to VTK/ParaView source code, but I guess that would mean modifying </span><br><span style="font-family:arial,helvetica,sans-serif">the vtkOpenVRRenderWindowInteracto<wbr>r, the vtkRenderWindowInteractor3D and </span><br><span style="font-family:arial,helvetica,sans-serif">a few other interaction classes. Developping ParaView's built in OpenVR </span><br><span style="font-family:arial,helvetica,sans-serif">solution may reveal itself difficult for specific interaction tasks. Do </span><br><span style="font-family:arial,helvetica,sans-serif">you have any idea of where I should start from ?</span><br><br><span style="font-family:arial,helvetica,sans-serif">2) The second solution would be to transfer the geometries after each </span><br><span style="font-family:arial,helvetica,sans-serif">modification to another software (such as a Unity pre-built scene), do </span><br><span style="font-family:arial,helvetica,sans-serif">the interaction in this software, and send back to ParaView the </span><br><span style="font-family:arial,helvetica,sans-serif">modification instructions. I thought I could archive this by using </span><br><span style="font-family:arial,helvetica,sans-serif">sockets in a Python script. Developping a new application on Unity </span><br><span style="font-family:arial,helvetica,sans-serif">allows easier interaction and the use on different hardware, but adds a </span><br><span style="font-family:arial,helvetica,sans-serif">new communication steps that could slow down the process. Do you have </span><br><span style="font-family:arial,helvetica,sans-serif">any advice about that ?</span><br><br><span style="font-family:arial,helvetica,sans-serif">I am not sure which one of the two solutions is the best.</span><br><br><span style="font-family:arial,helvetica,sans-serif">Thank you for any help.</span></div><span class="HOEnZb"><font color="#888888"><div><span style="font-family:arial,helvetica,sans-serif"><br></span></div><div><span style="font-family:arial,helvetica,sans-serif"><br></span></div><div><span style="font-family:arial,helvetica,sans-serif">David Tuckey<br></span></div><div><span style="font-family:arial,helvetica,sans-serif">Student at Ecole Centrale de Nantes</span></div></font></span></div></div></div><br>______________________________<wbr>_________________<br>
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<br></blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Ken Martin PhD<div>Distinguished Engineer<br><span style="font-size:12.8px">Kitware Inc.</span><br></div><div>28 Corporate Drive<br>Clifton Park NY 12065<br><div><br></div><div><span style="font-size:10pt;font-family:Tahoma,sans-serif">This communication,
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