[ParaView Postprocessing 14] Fluid flow: NVIDIA IndeX and visualization using GPUs

[@isaacrosin10]

Thank you for making this video!
I am trying to render an x-vorticity field with NVIDIA IndeX and am getting these three error messages at the same time:
nvindex: 1.0 PVPLN main error: The data array 'vorticity' has 3 components, which is not supported by NVIDIA IndeX.
nvindex: 1.0 PVPLN main error: Failed to initialize the mapper in vtknvindex_irregular_volume_mapper::Render.
nvindex: 1.0 PVPLN main error: NVIDIA IndeX rendering was aborted.
Using the volume representation as opposed to NVIDIA IndeX will render the field I want but it is extremely slow so I was hoping to use GPU acceleration to speed it up. The only field I have been able to render with NVIDIA IndeX so far has been the pressure field.
I am working with data generated using OpenFOAM in case that is important.
I would be grateful for any advice on how I may proceed.
Thanks again 🙂

[@TuxRiders]

thank you for your comment. unfortunately, I have never tried to visualize a vector field using NVIDIA IndeX, so I'm afraid I don't know how to resolve your issue. Should you find the solution, you may share it here for other people facing the same issue.

[@KyleMoon478]

Hi, the free version of Index only works on structured data and does not work on unstructured data. You can use resample to image to get it into a structured data.

[@Pierre-jn1il]

Thank you for your videos, I should have told you sooner!
I'm stuck with this video on an error when i choose "Volume".
ERROR: In vtkOpenGLProjectedTetrahedraMapper.cxx, line 388
vtkOpenGLProjectedTetrahedraMapper (0x1de1c150): Encountered non-tetrahedra cell!
ERROR: In vtkOpenGLProjectedTetrahedraMapper.cxx, line 388
vtkOpenGLProjectedTetrahedraMapper (0x1de1c150): Encountered non-tetrahedra cell!
But it's working with NVIDIA IndeX so I will continue to follow your explanations.
Thank you a lot !

[@TuxRiders]

cool, it's nice to know that the volume rendering works with NVIDIA IndeX for you.