Open sphaero opened 9 years ago
http://wiki.compiz.org/Plugins/Thumbnail
or the clone plugin
http://bazaar.launchpad.net/~compiz-team/compiz/0.9.12/view/head:/plugins/clone/src/clone.cpp
http://bazaar.launchpad.net/~compiz-team/compiz/0.9.12/view/head:/plugins/thumbnail/src/thumbnail.cpp
http://wiki.compiz.org/Plugins/Thumbnail