This is a Kodi visualization addon.
When building the addon you have to use the correct branch depending on which version of Kodi you're building against.
If you want to build the addon to be compatible with the latest kodi master commit, you need to checkout the branch with the current kodi codename.
Also make sure you follow this README from the branch in question.
If you want to use your own shaders, see instructions for creating your own preset list.
The following instructions assume you will have built Kodi already in the kodi-build directory
suggested by the README.
git clone --branch master https://github.com/xbmc/xbmc.gitgit clone --branch Nexus https://github.com/xbmc/visualization.shadertoy.gitcd visualization.shadertoy && mkdir build && cd buildcmake -DADDONS_TO_BUILD=visualization.shadertoy -DADDON_SRC_PREFIX=../.. -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX=../../xbmc/kodi-build/addons -DPACKAGE_ZIP=1 ../../xbmc/cmake/addonsmake
The addon files will be placed in ../../xbmc/kodi-build/addons so if you build Kodi from source and run it directly
the addon will be available as a system addon.