This is the reference implementation of the paper
Michel, Élie and Boubekeur, Tamy (2020).
Real Time Multiscale Rendering of Dense Dynamic Stackings,
Computer Graphics Forum (Proc. Pacific Graphics 2020), 39: 169-179.
https://doi.org/10.1111/cgf.14135
You may find binaries for linux and Windows in the list bellow. For each plateform, two distributions are available, the only difference is that one contains more example data than the other (but is much heavier!).
See user-manual.md in the downloaded archive for detailed instructions.