# Shadow 3D YouTube Tutorial Package

This folder contains a YouTube-ready tutorial package for the Light-Object-Screen Shadow 3D simulation.

Main upload files:

- `shadow3d_tutorial_male_voice.mp4`
- `thumbnail_1280x720.jpg`
- `captions.srt`
- `youtube_upload_prep.md`
- `youtube_metadata.json`

Production files:

- `tutorial_plan.json` contains the narration/action plan.
- `narration.wav` and `narration.mp3` are the rendered male voice narration.
- `screen_recording.webm` is the raw browser screen recording.
- `capture_shadow_tutorial.js` drives the automated screen recording.
- `proof_frames/` contains contact sheets and verification frames.