Install pytorch3d environment to build

1. Create a virtual environment

conda create -n pytorch3d python=3.8

2. Activate the environment

conda activate pytorch3d

3. Install pytorch, note that if you have changed the conda source, you need to add -c pytorch -c conda-forge, otherwise it will be added from the official source by default 

conda install pytorch==1.10.1 torchvision==0.11.2 torchaudio==0.10.1 cudatoolkit=11.3

4. Install dependent libraries

conda install -c fvcore -c iopath -c conda-forge fvcore iopath

5. Install pytorch3d

conda install pytorch3d -c pytorch3d