Code 2022.3.3 uses omni.replicator.core-1.7.7
I get an error when trying to access hydra_textures property in the MultiTexture class using the following code:
from omni.replicator.core import vp_manager
# create render product here
viewp_manager = vp_manager.ViewportManager()
it = viewp_manager._hydra_textures.hydra_textures
tex = next(it, None)
I get this error:
2023-03-30 18:30:04 [Error] [carb.events.python] TypeError: cannot create weak reference to 'list' object
2023-03-30 18:30:04 [Error] [carb.events.python]
2023-03-30 18:30:04 [Error] [carb.events.python] At:
2023-03-30 18:30:04 [Error] [carb.events.python] c:\users\mark\appdata\local\ov\pkg\code-2022.3.3\extscache\omni.replicator.core-1.7.7+104.2.wx64.r.cp37\omni\replicator\core\scripts\utils\viewport_manager.py(155): hydra_textures
if you look at the code in viewport_manager.py you’ll see:
def add_texture(self, context=None, *args, **kwargs):
if context is None:
context = "default"
if self.__hydra_texture_factory is None:
self.__hydra_texture_factory = omni.hydratexture.acquire_hydra_texture_factory_interface()
self.__hydra_textures.setdefault(context, []).append(
HydraTextureWrapper(*args, **kwargs, hydra_texture_factory=self.__hydra_texture_factory)
)
@property
def hydra_textures(self):
for tex in self.__hydra_textures.values():
yield weakref.proxy(tex)
line 155 is yield weakref.proxy(tex) in the above code
I understand that I probably should not be using the private variable _hydra_textures for future changes of code sake but I have not found another way to get to the hydra texture. I need the hydra texture to change the camera as I have 6 cameras and 6 render products at once causes memory to run out.
Regardless, from what I’ve read you cannot create a weakref to a list in Python. So accessing the hydra_textures property will always crash as tex in line 155 is a list. Or am I missing something?
Windows 11
Code 2022.3.3
Thank you,
Mark Olson