I’m trying to use the SPHVolumeInterpolator to create a volume rendering image from a SPH particle
distribution. I get nice results with a fixed smoothing length (= fixed spatial step).
However, my simulation uses variable smoothing lengths and I tried to use the smoothing lengths from the simulation as the cutoff array, but all nodes/interpolated values are zero then.
I’ve found the following information from two years ago and was wondering, if the cutoff array now works:
So, just to get it right: for a standard SPH kernel sum: rho_i = \sum_j m_j W_ij(h_i,h_j) how do I specify the smoothing lengths in the array selection for density, mass and cutoff array and which spatial step do I have to insert then?