This is a DSO plugin for Houdini that merges multiple objects into one. It is similar to the built-in object merge node, but it has a few extra features:

• It can assign transform path attributes to the merged objects. This is useful for exporting to USD, and packing in Alembic.
• It is context-aware of material paths at both the geometry and object level.

Run CMake to generate the project files for your platform, then build the project. Copy the resulting DSO file to your Houdini plugins directory.