# Source blends (Git LFS)

Canonical file: `geometry.blend`

Required objects (by name):

- `sensing_surface` — in `EXPORT_COMPUTE`
- `cam_sensor` — in `DESIGN_SIM`
- `origin_sensor` — Empty in `FRAMES` (sensor-frame datum)

Ensure Git LFS is installed before the first commit:

```powershell
git lfs install
git add geometry.blend
```