Do you want to learn USD but you don't know where to look?
Here are some common questions / things you'd want to learn and how to find information about it.
A thorough reference of different USD tools, libraries, and repositories A community of USD-users
If you look at the USD source code, there is a file called "schema.usda" that generates most (all?) USD type classes.
Say you want to find the schema for "Sphere" and look up all of its properties. Clone that repository, cd into it, and run this:
find . -name "*.usda" | grep -e schema.usda | xargs grep "class Sphere"This will give you the line where that class is defined and you can open it up in your editor and read all about it.
If you don't find what you need immediately, vary the search terms a bit and it should be easily findable.