glTF has the notion of nodes, basically objects are tagged as nodes with a set of standard attributes like "name" and "(transform)matrix", e.g.:
"nodes":[ { "children":[1,2 ], "name":"Root" }, { "matrix":[1,0,0,0,0,1,0,0,0,0,1,0,0.333000004,0,0,1 ], "name":"pighead", "mesh":0 }, ...
Is there a way to export a custom node-level attribute in Houdini?
For instance I would like to export object's mass or velocity as a node attribute in glTF.
Of course I could write it as a mesh attribute, but I wonder if there's another way.
Thanks,
Vlad