Motion Pipeline Skill

CPU-only motion data processing pipeline for game animation, inspired by Meta's ai4animationpy framework (CC BY-NC 4.0). All operations run on numpy and scipy with no GPU or PyTorch required.

Why standalone implementations?

ai4animationpy's Math/Tensor.py imports torch unconditionally at the top level, which propagates through every module (Animation, Import, IK, Math). This means zero ai4animationpy modules are importable without PyTorch installed. The standalone implementations in scripts/motion-pipeline.py replicate the key algorithms from their source code using only numpy + scipy.

Environment setup

# Create venv (one-time)
python3 -m venv /home/feedgen/vexjoy-agent/motion-pipeline-env/