I have installed LibreOffice 5 using the following commands:
sudo add-apt-repository ppa:libreoffice/ppa
sudo apt-get update
sudo apt-get install libreoffice
However in Impress the 3D transitions (eg Rochade) are not installed. I've used Ubuntu for years, and seem to remember this had something to do with OpenGL. How can I get these transitions on elementary OS?