Hello Mohamed, Is there a way to use the GPU instead of the CPU for: > 1. Data rendering in general? > This is the case by default when you are using the paraview binaries, you can check by taking a look into Help->About->OpenGL Renderer
> 2. Volume rendering? other than using the NVIDIA IndeX plugin? > This is also the case by default if your GPU suppports it. You can check the "Volume Rendering Mode" in the volume representation property. Smart is the default and will use your gpu if possible. You can set it to "GPU based" if you want to make sure. > 3. Loading and displaying the data (i.e. data crunching). For example, if > I am loading a transient CFD simulation result? > Loading the data using the GPU will not be possible, this is basically lots of IO with the disk and the creation of the geometry. If by displaying you mean rendering, see the first point. > > Also, is there a way to render-off screen through Paraview GUI? or this > needs to be done through code? > Yes there is, but it depends what you mean by off-screen. If you refer to CPU based rendering on an headlees server, please take a look here. [1] If not, please precise your needs. Best regards, Mathieu Westphal [1] : https://www.paraview.org/Wiki/ParaView/ParaView_And_Mesa_3D
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