data_demo/README.md

Demo data layout (data_demo/)

All demo cases read from this folder. Download from Hugging Face — PiLoT-data:

# from PiLoT repo root
./scripts/download_data_demo.sh

Partial downloads: ./scripts/download_data_demo.sh feicuiwan or smbu.

data_demo/
├── 3dgs_model/                 # Feicuiwan / Jadebay PLY
│   └── point_cloud.ply
├── smbu_model/                 # SMBU CityGaussian checkpoint + COLMAP sparse
│   ├── checkpoints/
│   │   └── epoch=60-step=30000.ckpt
│   └── sparse/sparse/0/
├── pretrained_model/           # PiLoT refiner weights (shared by all cases)
│   └── model@mapscape@512@Fourier.ckpt
└── query/
    ├── images/
    │   ├── 3dgs_test/        # Feicuiwan query frames
    │   └── smbu_seq2/        # SMBU query frames
    └── poses/
        ├── 3dgs_test.txt       # lon lat alt roll pitch yaw
        └── smbu_seq2.txt       # x y z pitch roll yaw (normalized)

Pose formats

File	Columns
3dgs_test.txt	name lon lat alt roll pitch yaw
smbu_seq2.txt	name x y z pitch roll yaw

Local development note

If disk space is tight, smbu_model/ may be a symlink to your CityGaussian training output. The Hugging Face release ships real checkpoint files under data_demo/smbu_model/.

Variable	Default
SMBU_MODEL_DIR	data_demo/smbu_model
CITYGAUSSIAN_ROOT	third_party/CityGaussian