How to get usd metadata into sops as attributes.

Forums Solaris and Karma How to get usd metadata into sops as attributes.

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kgoossens: Member; 289 posts; Joined: July 2005; Offline

Dec. 7, 2021 4:34 p.m.

Hello everyone,

I'm trying to get access to usd metadata in sops. But I'm struggling to figure out how.
E.g as put in the image I would like to get the id as a string attribute on the primitives or points.

Cheers!

Edited by kgoossens - Dec. 7, 2021 17:02:18

Attachments:
MetaData.png (274.8 KB)

A computer is almost human - except that it does not blame its mistakes on another computer.


npetit: Staff; 411 posts; Joined: Feb. 2008; Offline

Dec. 7, 2021 6:26 p.m.

You could use a python SOP, or here's an example hipfile using a wrangle to access the LOP imported prim's metadata.

Attachments:
MetaDataToSOPs.hip (116.1 KB)


kgoossens: Member; 289 posts; Joined: July 2005; Offline

Dec. 8, 2021 2:06 p.m.

Thank you!! This helps me forward.

So I now have added some custom data in the metadata. I do see "customData" appearing as a key, but when I try to get access to it, the values don't show. I also tried "customData:myCustomData"

Attachments:
MetaData2.png (616.2 KB)

A computer is almost human - except that it does not blame its mistakes on another computer.


npetit: Staff; 411 posts; Joined: Feb. 2008; Offline

Dec. 14, 2021 6:02 p.m.

For more complex data types you'll need to go through python I'm afraid. Some data types won't be able to be assigned as attributes though since there may not be geometry data types that support it.


Fele: Member; 36 posts; Joined: Nov. 2013; Offline

April 6, 2022 12:17 p.m.

kgoossens
but when I try to get access to it, the values don't show. I also tried "customData:myCustomData"

Just came across this post while also looking for extracting Meta Data from USD files. Your mentioned "customData:myCustomData" which works for me. Thx

Attachments:
usd_meta.jpg (175.3 KB)


ccyzkk: Member; 14 posts; Joined: Nov. 2016; Offline

April 7, 2022 11:46 a.m.

datas in customData are complex data,they are not just string ,int or float...
so if you write the vex like this
usd_metadata("op:/stage/OUT","/sopcreate1","customData")
It certainly didn't work.
the best way is Separate readings.
Thx.


tamte: Member; 8785 posts; Joined: July 2007; Offline

April 7, 2022 1:14 p.m.

it would be great if there is dictionary version of usd_metadata() that would bring such data in as dictionary

Edited by tamte - April 7, 2022 13:14:13

Tomas Slancik
FX Supervisor
Method Studios, NY

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