In USD, What Prims are Affected by Layer X?

Sun, 29 Aug 2021 22:16:09 +1000

A Network Snapshot of USD Stage Composition

Building USD for Python 3 on Windows

Mon, 08 Jun 2020 18:57:35 +1000

Building USD
For testing software versions, I use the package and environment manager conda as it isolates every install and environment modification, plus it fits my minimal python development setup.
Using usd-build-club's Building USD on Windows wiki as a foundation, these are my conda steps:
1. Create a new environment with the target python version
(base) C:>conda create -n py38usd205build python=3.8
2. Jump into that environment
Everything following will occur inside that environment.
(base) C:>conda activate py38usd205build
3. Conda Install Jinja2 and CMake
(py38usd205build) C:>conda install -c anaconda jinja2 cmake
...
The following NEW packages will be INSTALLED:
cmake anaconda/win-64::cmake-3.17.2-h33f27b4_0
jinja2 anaconda/noarch::jinja2-2.11.2-py_0
...
4. Pip Install PySide2 and PyOpenGL
(py38usd205build) C:>python -m pip install PySide2 PyOpenGL
...
Successfully installed PyOpenGL-3.1.5 PySide2-5.15.0 shiboken2-5.15.0
5. Get the Developer Command Prompt for Visual Studio 2019
I had some issues with the conda-forge vs2017_win-64 package but found rdonnelly vs2019_win-64 to be a working one. You might need to install the Visual Studio 2019 C++ compiler as well.
(py38usd205build) C:>conda install -c rdonnelly vs2019_win-64
...
The following NEW packages will be INSTALLED:

vs2019_win-64 rdonnelly/win-64::vs2019_win-64-19.25.28614-h4025799_0
vswhere pkgs/main/win-64::vswhere-2.7.1-h21ff451_0
...
Executing transaction: done
...
C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools>CALL "VC\Auxiliary\Build\vcvars64.bat" -vcvars_ver=14.25 10.0.18362.0

** Visual Studio 2019 Developer Command Prompt v16.5.4
** Copyright (c) 2019 Microsoft Corporation

[vcvarsall.bat] Environment initialized for: 'x64'
6. Run the build_usd python script
(py38usd205build) C:>python "B:\write\code\git\USD\build_scripts\build_usd.py" -v "B:\write\builds\py38usd205build"

Building with settings:
USD source directory B:\write\code\git\USD
USD install directory B:\write\builds\py38usd205build
...
Python support On
Python 3: On
...
Success! To use USD, please ensure that you have:

The following in your PYTHONPATH environment variable:
B:\write\builds\py38usd205build\lib\python

The following in your PATH environment variable:
B:\write\builds\py38usd205build\bin
B:\write\builds\py38usd205build\lib

Try it out
After setting the environment variables, the python snippet that previously failed should work now:
(py38usd205build) C:>set PYTHONPATH=%PYTHONPATH%;B:\write\builds\py38usd205build\lib\python
(py38usd205build) C:>set PATH=%PATH%;B:\write\builds\py38usd205build\bin;B:\write\builds\py38usd205build\lib
(py38usd205build) C:>python -c "from pxr import Usd;print(Usd)"

Great! USD tools like usdview should work now (don't forget that Windows is still marked as experimental on the official USD repo).
(py38usd205build) C:>usdview "B:\write\code\git\USD\extras\usd\tutorials\convertingLayerFormats\Sphere.usd"

Please feel free to comment any discoveries you have made!

About Naming Conventions

Tue, 28 Mar 2017 00:18:11 +1100

Or: How should I name this article?

Christian López Barrón

In USD, What Prims are Affected by Layer X?

Building USD for Python 3 on Windows

About Naming Conventions