Gazebo version | Branch |
---|---|
Fortress | fortress |
Garden and higher versions | main |
USD is a high-performance extensible software platform for collaboratively constructing animated 3D scenes, designed to meet the needs of large-scale film and visual effects production.
This repo provides tools to convert between SDF and USD files.
USD requires CMAKE 3.12; this package is available from Ubuntu 20.04
If you have already installed gz-usd
you might want to visit the tutorial section.
You will need all of the dependencies for sdformat, along with the following additional dependencies:
-
USD: Note: USD support is only available when building sdformat from source. USD requires CMAKE 3.12 this package is available from Ubuntu 20.0.
Clone the USD repository
git clone --depth 1 -b v21.11 https://github.com/PixarAnimationStudios/USD.git
Note: Only v21.11 supported currently
Install dependencies not managed by the build script
sudo apt install libpyside2-dev python3-opengl cmake libglu1-mesa-dev freeglut3-dev mesa-common-dev
Use the build script to compile USD. In order to speed up compilation, it is recommended to disable unneeded components.
cd USD python3 build_scripts/build_usd.py --build-variant release --no-tests --no-examples --no-tutorials --no-docs --no-python <install_dir>
For more information regarding the build options, see the USD docs at https://github.com/PixarAnimationStudios/USD/tree/v21.11#getting-and-building-the-code.
Add USD to system paths (replace <install_dir> with the path to your USD install directory)
export PATH=<install_dir>/bin:$PATH export LD_LIBRARY_PATH=<install_dir>/lib:$LD_LIBRARY_PATH export CMAKE_PREFIX_PATH=<install_dir>:$CMAKE_PREFIX_PATH
Build gz-usd
. The steps below follow a traditional cmake build, but gz-usd
can also be built with colcon:
Note: Be sure to build gz-usd on a terminal with the above environment variables exported.
git clone https://github.com/gazebosim/gz-usd
cd gz-usd
mkdir build
cd build
cmake ..
make
You should now have an executable named sdf2usd
in the ./build/bin
directory.
This executable can be used to convert a SDF world file to a USD file.
To see how the executable works, run the following command from the ./build/bin
directory:
./sdf2usd -h
You may need to add the USD library path to your LD_LIBRARY_PATH
environment variable after sourcing the colcon workspace.
If the USD library path is not a part of LD_LIBRARY_PATH
, you will probably see the following error when running the sdf2usd
executable:
sdf2usd: error while loading shared libraries: libusd_usd.so: cannot open shared object file: No such file or directory
The typical USD library path is <usd_installation_path>/lib
.
So, if you installed USD at /usr/local/USD
, the following command on Linux properly updates the LD_LIBRARY_PATH
environment variable:
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/USD/lib
Another thing to note if building with colcon is that after sourcing the workspace with sdformat,
the sdf2usd
executable can be run without having to go to the ./build/bin
directory.
So, instead of going to that directory and running ./sdf2usd ...
, you should be able to run sdf2usd ...
from anywhere.