sdf_change_block

Quick Reference

USD's Change Processing sends notifications whenever changes are made. However, you can make significantly speed up your Sdf calls if you batch the changes into a single operation, which you can do using SdfChangeBlock.

Because SdfChangeBlock is easy to use poorly, check out the documentation listed in See Also before using it in your own tools.

C++

#include <pxr/usd/sdf/changeBlock.h>

// ...

{
    pxr::SdfChangeBlock batcher;
    // ... do some Sdf API code, here
}

Python

from pxr import Sdf

# ...

with Sdf.ChangeBlock():
    # ... do some Sdf API code, here

See Also

https://graphics.pixar.com/usd/docs/api/class_sdf_change_block.html

https://groups.google.com/d/msg/usd-interest/Bh6_sxij-f8/rnGtLK3tAQAJ