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from pytorch3d.io import load_obj, load_objs_as_meshes, save_obj

def clone_of_blender_shrink_fatten(target_mesh_path_='mesh_data_folder/1/1_140.obj', scale_factor_=0.01, out_name_='temp.obj'):

chosen_meshs = load_objs_as_meshes(files=[target_mesh_path_], load_textures=False)

# print(chosen_meshs[0].verts_normals_list()[0].size())

# print(chosen_meshs[0].verts_list()[0].size())

test_subject = chosen_meshs[0].verts_normals_list()[0]*scale_factor_

# print(torch.sum(test_subject*test_subject, 1))

# print(test_subject.size())

new_mesh = chosen_meshs[0].clone()

# print(new_mesh.verts_list()[0].size())

new_mesh.verts_list()[0] = new_mesh.verts_list()[0] - test_subject

save_obj(out_name_, new_mesh.verts_list()[0], new_mesh.faces_list()[0])

return 0

if __name__ == '__main__':

clone_of_blender_shrink_fatten()