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Add dataset card, copyright notice, indexes and tooling
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Scripts

Derives both CSV indexes from the assets. Pure Python 3, no dependencies: GLB metadata is read from each file's glTF JSON chunk and the binary payload is never touched, so probing the whole 23 GB collection takes about ten seconds.

script purpose
glb_probe.py Library + CLI. Parses one .glb and returns rig, animation and geometry stats.
build_dataset.py Walks every asset once and writes ../metadata.csv and ../animations.csv. --link also hardlinks a source directory into ../glb/.
python3 build_dataset.py                      # rebuild both tables in place
python3 build_dataset.py --src /path/raw --link   # ingest a fresh download
python3 glb_probe.py ../glb/<file>.glb        # inspect a single asset

Notes on the probe

  • Kinematic-tree roots are counted as joints whose parent is not itself a joint, so num_skeleton_roots > 1 marks a disconnected or multi-tree skeleton.
  • Clip duration comes from the max of each animation sampler's input accessor, which glTF stores in the JSON chunk.
  • animated_joints intersects a clip's target nodes with the skin's joint set, separating clips that drive a rig from clips that only move object-level nodes.