No trespass agreement, city of Portland

https://www.portlandoregon.gov/police/article/577740

MSAA Overview

My favorite MSAA overview: https://mynameismjp.wordpress.com/2012/10/24/msaa-overview/

Also, for programmable sample positions: https://mynameismjp.wordpress.com/2015/09/13/programmable-sample-points/