Desktop UI sub-codebase: Qt6 application for Live2D model annotation and management.

Uses the see_through conda env. See the root README for setup.

Always run from the repo root as the working directory:

cd /path/to/see-through
conda activate see_through
python ui/ui/launch.py

The assets symlink must exist at repo root (see root README). Without it, the UI will crash on startup with FileNotFoundError.

The UI expects project data under workspace/datasets/. Each project is a directory containing annotated Live2D model folders:

workspace/
└── datasets/
    └── <project_name>/
        ├── exec_list.txt              # List of model paths (one per line)
        └── <model_name>/
            ├── final.jxl              # Source image (JXL format)
            ├── final.json             # Project metadata (auto-created by UI)
            ├── instances.json         # Instance annotations
            └── *_masks.json           # Segmentation masks (from inference)

To open a project, use File > Open and select the exec_list.txt or project .json file, or launch directly with:

python ui/ui/launch.py --proj workspace/datasets/<project_name>

Refer to CubismPartExtr for how to prepare workspace data from Live2D model files.

Double-click launch_ui_win.bat from the ui/ directory.

For visual testing on headless Linux:

sudo bash ui/install_system_deps.sh
Xvfb :99 -screen 0 1920x1080x24 &
DISPLAY=:99 python ui/ui/launch.py