Here is an example of using the Load Cloud/Mesh and Modify Cloud/Mesh tools of PhotoModeler Premium. Below we have loaded the famous Stanford Bunny model in .ply format. This model was not created by PhotoModeler. The model has 69,000 triangles:
We then performed a Triangle Decimation step from the Meshing Tools with 90% decimation. The result is this bunny Mesh with only 6,900 triangles: