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Fix camera clone() with torch.save

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Summary:
User reported that cloned cameras fail to save. The error with latest PyTorch is

```
pickle.PicklingError: Can't pickle ~T_destination: attribute lookup T_destination on torch.nn.modules.module failed
```

This fixes it.

Reviewed By: btgraham

Differential Revision: D39692258

fbshipit-source-id: 75bbf3b8dfa0023dc28bf7d4cc253ca96e46a64d
This commit is contained in:
Jeremy Reizenstein 2022-09-22 14:52:09 -07:00 committed by Facebook GitHub Bot
parent ce3fce49d7
commit efea540bbc
2 changed files with 8 additions and 2 deletions
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4
pytorch3d/renderer/utils.py
View File

@ -8,7 +8,7 @@
import copy import copy
import inspect import inspect
import warnings import warnings
from typing import Any, List, Optional, Tuple, Union from typing import Any, List, Optional, Tuple, TypeVar, Union
import numpy as np import numpy as np
import torch import torch
@ -191,7 +191,7 @@ class TensorProperties(nn.Module):
""" """
for k in dir(self): for k in dir(self):
v = getattr(self, k) v = getattr(self, k)
if inspect.ismethod(v) or k.startswith("__"): if inspect.ismethod(v) or k.startswith("__") or type(v) is TypeVar:
continue continue
if torch.is_tensor(v): if torch.is_tensor(v):
v_clone = v.clone() v_clone = v.clone()

6
tests/test_cameras.py
View File

@ -31,6 +31,7 @@
# SOFTWARE. # SOFTWARE.
import math import math
import pickle
import typing import typing
import unittest import unittest
from itertools import product from itertools import product
@ -1333,6 +1334,11 @@ class TestPerspectiveProjection(TestCaseMixin, unittest.TestCase):
# Check in_ndc is handled correctly # Check in_ndc is handled correctly
self.assertEqual(cam._in_ndc, c0._in_ndc) self.assertEqual(cam._in_ndc, c0._in_ndc)
def test_clone_picklable(self):
camera = PerspectiveCameras()
pickle.dumps(camera)
pickle.dumps(camera.clone())
############################################################ ############################################################
# FishEye Camera # # FishEye Camera #