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animation/SadTalker/docs/face3d.md

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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.