Decimation of a model is done as follows: Top Menu / Filter / Remeshing > Simplification: Quadric Edge Collapse decimation. Set target poly count, tick ‘Preserve Normal’. Save.
Release: MeshLab 2020
Decimation of a model is done as follows: Top Menu / Filter / Remeshing > Simplification: Quadric Edge Collapse decimation. Set target poly count, tick ‘Preserve Normal’. Save.