This is Min.
I hanged around the post-processing forum and learned that, apart from the Point Sprite plugin (which is not available in my paraview version), there is another faster approach to visualize the particles, which is Point Gaussian.
I tried both "Glyph filter" and "Point Gaussian", and I found that the particle size is not consistent???
Please refer to the uploaded screenshots for the detailed settings in Paraview when I visualize the particles using both "Glyph filter" and "Point Gaussian", then you will understand what I mean.
Thanks and best regards,