Original moire and root position studies

Combination runtime
Bun 1.3.11 Sharp 0.34.5 Node 25.8.1 Three 0.169.0 for source comparisons only
No GPU generation or mocap used

Reproduce saved numerical assets in an isolated folder
Place moire-rig-study.ts beside build-moire-rig-assets.ts
Install sharp@0.34.5 in that script folder using the package manager
bun build-moire-rig-assets.ts /absolute/output-directory
uv run --no-project --with numpy --with pillow python verify-moire-rig-native.py /absolute/output-directory
The verifier writes moire-rig-validation.json and checks all RGBA channels in five PNGs plus root positions and times
JSON formatting may differ without changing the record

Source helper comparison
Pinned source https://raw.githubusercontent.com/blendi-remade/prompt2rig/fe3d3eec992772b538992374ca933020ed517938/public/retarget.js
Required SHA256 d087f0a9c508c5a268e9573c5d224370dbc88b091e1297b7c5c32eb5b5c0adeb
Save that module as retarget.js in the isolated script folder
Use package.json type module and install three@0.169.0
Place verify-prompt2rig-source.mjs and moire-rig-study.ts in the same folder
node verify-prompt2rig-source.mjs /absolute/retarget.js /absolute/output-directory/prompt2rig-source-bake-proof.json
Node 25 native TypeScript stripping loads the numeric helper
The harness checks the pinned source hash before dynamically importing it
Six fixtures exercise Track and trackToClip with a minimal authored rig adapter
They do not execute the complete Rig retargeter browser app MediaPipe GVHMR WiLoR video provider or GPU worker

Moiré scope
Two sinusoidal transmittance fields multiplied and sampled at pixel centers
38 cycles across 384 pixels for the saved zero four and twelve degree outputs
Sampling example source 0.58 cycles per pixel Gaussian sigma 0.75 pixels before point sampling
Gaussian attenuation is not an ideal bandlimit and residual aliasing remains
No uploaded photo repair recovered source detail or measured camera sensor output

Root scope
World position to parent local for translation Y rotation and positive diagonal scale only
Seconds rebased to the first sample independently of root position transformation
Numeric fixture format is original to this page not a full application payload importer
No shear arbitrary hierarchy bone rotations animation retargeting or GLB validation