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## 3D Face Visualization
We use `pytorch3d` to visualize the 3D faces from a single image.
The requirements for 3D visualization are difficult to install, so here's a tutorial:
```bash
git clone https://github.com/OpenTalker/SadTalker.git
cd SadTalker
conda create -n sadtalker3d python=3.8
source activate sadtalker3d
conda install ffmpeg
conda install -c fvcore -c iopath -c conda-forge fvcore iopath
conda install libgcc gmp
pip install torch==1.11.0+cu113 torchvision==0.12.0+cu113 torchaudio==0.11.0 --extra-index-url https://download.pytorch.org/whl/cu113
# insintall pytorch3d
pip install --no-index --no-cache-dir pytorch3d -f https://dl.fbaipublicfiles.com/pytorch3d/packaging/wheels/py38_cu113_pyt1110/download.html
pip install -r requirements3d.txt
### install gpfgan for enhancer
pip install git+https://github.com/TencentARC/GFPGAN
### when occurs gcc version problem `from pytorch import _C` from pytorch3d, add the anaconda path to LD_LIBRARY_PATH
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/$YOUR_ANACONDA_PATH/lib/
```
Then, generate the result via:
```bash
python inference.py --driven_audio <audio.wav> \
--source_image <video.mp4 or picture.png> \
--result_dir <a file to store results> \
--face3dvis
```
The results will appear, named `face3d.mp4`.
More applications about 3D face rendering will be released soon.
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