Is there a way to reduce the number of triangles/polygons for a 3D model (.glb/.obj/.fbx) using python code. I have tried using pymeshlabs and open3D module, but for some reason none of the things seem to be working correctly.

this is a sample code for testing

import open3d as o3d
import os
import trimesh
import pymeshlab


def get_polygon_count(mesh):
    return len(mesh.triangles)

def high_quality_simplify(input_file, output_file, target_faces):
    mesh = trimesh.load(input_file)
    temp_file = 'temp.obj'
    mesh.export(temp_file)
    ms = pymeshlab.MeshSet()
    ms.load_new_mesh(temp_file)
    ms.meshing_decimation_quadric_edge_collapse(
        targetfacenum=target_faces,
        preservenormal=True,           
        planarquadric=True,            
        autoclean=True                 
    )
    

    simplified_temp_file = 'simplified_temp.obj'
    ms.save_current_mesh(simplified_temp_file, save_textures=False)  
    simplified_mesh = trimesh.load(simplified_temp_file)
    simplified_mesh.export(output_file)
    os.remove(temp_file)
    os.remove(simplified_temp_file)

input_file = 'baseline_studio.glb'  # or .fbx
output_file = 'baseline_studio_optimised.glb'  # or .fbx
reduction_percentage = 10
num_triangles = get_polygon_count(o3d.io.read_triangle_mesh(input_file))
target_triangles = int(num_triangles * (1 - reduction_percentage / 100))
high_quality_simplify(input_file, output_file, target_triangles)```


#i have tried couple of different POC's using chatGPT like vtk but none of them seem to be working.