ZeroGeometry Kit

Social-video tools for Blender 4.2+ (tested on 5.2). Make one great 16:9 animation, then ship it everywhere. By ZeroGeometry.

Panel: 3D Viewport → Sidebar (N) → ZeroGeometry. Every section has a ? button, and a full offline guide ships with the add-on (Guide button).

• 9:16 / 4:5 / 1:1: each click makes a real reframed copy of your scene with every camera lens re-fitted, including animated zooms and beat-cut cameras. It's always built from your original, and clicking a format that already exists just switches to it. All Three makes every format at once.
• Version switcher: the 16:9 · 9:16 · 4:5 · 1:1 buttons at the top of the panel jump between versions.
• Auto-Follow Subject: pick your product (an object or a collection) and it keys lens shift and zoom on every frame so the product stays inside the frame. Fill frame also zooms in on small subjects. X restores the original lens, and re-running never stacks.
• TikTok / Reels / Shorts: shows the real, asymmetric areas the app UI covers. Auto-Follow then centres the product in the safe area.
• Render All Formats: exports the original and every version as H.264 MP4 (with the scene's audio) named Scene_9x16.mp4 and so on. Your own render settings are restored afterwards.

Drawn in camera view only, never rendered: a ZERO GEOMETRY format badge, the platform safe area, and a lime dot that pulses on every beat marker. The eye button jumps to camera view.

• Detect Beats (mp3 / wav / flac / ogg / m4a): tempo and beat phase, a marker on every beat, and the track added as a sound strip. Re-running replaces it rather than stacking.
• BPM Grid, plus Tempo ½ / ×2.
• Squash / Hop / Light / Glow: keys a pulse on the selected objects every N beats (redo panel: amount, decay, stagger).
• Camera Cuts on Beats: select two or more cameras and it cuts between them on the beat.

Check lists every curve that doesn't end where it starts, and every video texture that will freeze. Fix closes them (or adds Cycles). A full 360° spin counts as closed. Works on the selection, or on everything when nothing is selected.

Houdini-style wedging. Copy any number field's data path, click Wedge Render (the path is pasted for you), and get one still per value plus a branded, labelled contact sheet.

Everything is saved to the Export Folder shown in the panel. The default is ZeroGeometry Exports/ next to your .blend; if the file hasn't been saved yet, it's Videos/ZeroGeometry Exports. Inside: Renders/ and Wedges/<property>_<time>/. Use Open to view it, or the folder button to choose another location.

In Blender: Edit → Preferences → Get Extensions → ⌄ → Install from Disk, then pick zerogeometry_kit-1.0.1.zip. Try it on demo/zgk_demo.blend, an original scene with a royalty-free generated beat.

blender -b --factory-startup -P tests/test_headless.py      # 12 checks
blender -b --factory-startup -P tests/test_more.py -- song.mp3   # 16 checks
blender demo/zgk_demo.blend -P tests/gui_handtest.py -- out_dir  # 25 checks, real UI
blender --command extension build --source-dir zerogeometry_kit --output-dir dist

GPL-3.0-or-later. Fonts: Poppins and IBM Plex Mono (SIL Open Font License, included).