I am curious about how to best post-process simulated high-order results from Nektar++. I tried using Paraview to generate the contour plot of the vorticity field, but it seems quite blurry, which is due to, in my understanding, that Paraview uses linear interpolation to interpret the high-order results. I am currently using Matlab to generate the contour plot with high-order interpolations from a for-loop of the element-wise results, but it requires a lot of tweaking, calculation time, and data extraction. Do you have some advice on the post-processing of high-order results from Nektar++? Much appreciated.

Thanks,