Bugs

libstdc++.so.6: version 'GLIBCXX_3.4.21' not found

``bash sudo find / -name libstdc++.so.6*

find the correct lib in the search results

such as, /export/home/suny/anaconda3/lib/libstdc++.so.6.0.26 in my system

set the link to this lib

sudo rm -rf /usr/lib64/libstdc++.so.6
sudo ln -s /export/home/suny/anaconda3/lib/libstdc++.so.6.0.26 /usr/lib64/libstdc++.so.6
``

Visualization bug: OpenGL.error.GLError: GLError(err = 12289,baseOperation = eglMakeCurrent ....

The bug of pyrender is really a pain in the ass... ``bash

for centos

sudo yum install libXext libSM libXrender freeglut-devel

for ubuntu: use pyrender in OSMesa mode

sudo apt update
sudo apt-get install libsm6 libxrender1 libfontconfig1 freeglut3-dev
sudo apt --fix-broken install
sudo wget https://github.com/mmatl/travis_debs/raw/master/xenial/mesa_18.3.3-0.deb
sudo dpkg -i ./mesa_18.3.3-0.deb || true
sudo apt install -f
git clone https://github.com/mmatl/pyopengl.git
pip install ./pyopengl