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One-time setup: install Insta360’s free
Insta360 Stitcher
(
download) — the app uses its ProStitcher engine and can’t bundle it.
ffmpeg is built in.
First launch (unsigned app):
Mac — if you see “damaged / can’t be opened”, run once in Terminal:
xattr -dr com.apple.quarantine "/Applications/360 Cylinder Stitcher.app"
then open normally (or right-click the app → Open).
Windows — SmartScreen: More info → Run anyway.
What it does
- Batch-stitch
VID_* captures → 8K equirectangular (ProStitcher engine)
- 3D cylinder viewer — set orientation, preview on the real wall geometry
- Render the flat cylindrical wall feed (your locked install orientation)
- Split into 4 edge-blended projector feeds
- Make smooth preview proxies