Photogrammetry Session - new model?

Question

lanxinger OP

Created 1w

Replies 5

Boosts 1

Participants 2

Hi Apple Team,

We noticed the following exciting changelog in the latest macOS 26 beta:

A new algorithm significantly improves PhotogrammetrySession reconstruction quality of low-texture objects not captured with the ObjectCaptureSession front end. It will be downloaded and cached once in the background when the PhotogrammetrySession is used at runtime. If network isn’t available at that time, the old low quality model will be used until the new one can be downloaded. There is no code change needed to get this improved model. (145220451)

However after trying this on the latest beta and running some tests we do not see any differences on objects with low textures such as single coloured surfaces. Is there anything we are missing? the machine is definitely connected to the internet but we have no way of knowing from the logs if the new model is being used?

thanks

Boost

Answer 1

Engineer OP

Apple

1w

How were the images you are testing with captured?

The best approach is to file feedback assistant with the dataset and system logs etc attached so our team can investigate. If possible, please post the feedback ID here to help us find it more quickly.

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Answer 2

lanxinger OP

1w

Thank you for the quick response.

Images were captured with AVFoundation on an iPhone 16 pro max.

I have filed this as: FB18747950

0

Answer 3

Engineer OP

Apple

1w

You should also be able to check the logs yourself using the Console.app on your Mac (not Xcode console) and filtering for "subsystem:CoreOC". There should be logs about "mobile assets" when the reconstruction first starts that should tell you if the model has already been cached or there was a failure downloading it.

If you are not familiar with Console.app, please read more here: https://support.apple.com/guide/console/find-log-messages-and-activities-cnslbf30b61a/mac

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Answer 4

lanxinger OP

1w

thank you.

|default 19:07:58.533572+0200 Object Capture Reconstruction Mobile assets are already available, not requesting again.

so I guess this means the model has been downloaded successfully. given that I am still not seeing any improvement on the model after reconstruction compared to a few weeks ago I think the ticket is still valid. I would love to know in which case this new helps (I tested a dataset of a black matte frame that has little to no texture) and what datasets Apple has tested this with.

It's hard to evaluate a new feature without more information.

thanks!

0

Answer 5

Engineer OP

Apple

1w

Thanks for verifying that the model was downloaded. Our team is looking into your feedback ticket.

1