SMPLX/transfer_model/utils/o3d_utils.py

# -*- coding: utf-8 -*-

# Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. (MPG) is
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# You can only use this computer program if you have closed
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# program from someone who is authorized to grant you that right.
# Any use of the computer program without a valid license is prohibited and
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#
# Copyright©2020 Max-Planck-Gesellschaft zur Förderung
# der Wissenschaften e.V. (MPG). acting on behalf of its Max Planck Institute
# for Intelligent Systems. All rights reserved.
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# Contact: Vassilis Choutas, vassilis.choutas@tuebingen.mpg.de

import open3d as o3d
import torch

Vector3d = o3d.utility.Vector3dVector
Vector3i = o3d.utility.Vector3iVector

Mesh = o3d.geometry.TriangleMesh


def np_mesh_to_o3d(vertices, faces):
    if torch.is_tensor(vertices):
        vertices = vertices.detach().cpu().numpy()
    if torch.is_tensor(faces):
        faces = faces.detach().cpu().numpy()
    mesh = Mesh()
    mesh.vertices = Vector3d(vertices)
    mesh.triangles = Vector3i(faces)
    return mesh