usd-simple-decimation-schema

An example USD schema/adapter implementing a simple triangular mesh decimation using libigl.

Example "Maneki" animation USD asset made available by J CUBE

Prerequisite

• Pixar OpenUSD
• CMake

Build

git clone https://github.com/jerenchen/usd-simple-decimation-schema.git
cd usd-simple-decimation-schema
mkdir build && cd build
cmake -DCMAKE_INSTALL_PREFIX=</path/to/usd/plugins> -DCMAKE_BUILD_TYPE=Release ..
make -j8 && make install

The content of </path/to/usd/plugins> should look like this:

</path/to/usd/plugins>
└── plugin
    ├── plugInfo.json
    ├── trimesh
    │   └── resources
    │       ├── generatedSchema.usda
    │       └── plugInfo.json
    ├── trimeshImaging
    │   └── resources
    │       └── plugInfo.json
    └── trimeshImaging.dylib

Finally, make sure path </path/to/usd/plugins> is added to the env var PXR_PLUGINPATH_NAME for plug-in discovery.

Demo

Before opening the demo, either download the example USD asset from here or via CMake:

cd usd-simple-decimation-schema/demo
mkdir build_demo && cd build_demo && cmake .. && cd ..

With both simple-deciamte.usda and maneki_anim.usd present in the same directory, run the following command to view the demo:

usdview simple-decimate.usda

Resources

• USD-Cookbook: Custom schema with Python binding