Simplify splats to a target count using NanoGS progressive pairwise merging.
Instead of discarding low-visibility splats, this iteratively merges nearby
similar splats into single approximating Gaussians using Mass-Preserving
Moment Matching (MPMM), preserving scene structure and appearance.
Simplify splats to a target count using NanoGS progressive pairwise merging.
Instead of discarding low-visibility splats, this iteratively merges nearby similar splats into single approximating Gaussians using Mass-Preserving Moment Matching (MPMM), preserving scene structure and appearance.