global distance field on bistro - OpenGL (2)

@misc{ORCAAmazonBistro, title = {Amazon Lumberyard Bistro, Open Research Content Archive (ORCA)}, author = {Amazon Lumberyard}, year = {2017}, month = {July}, note = {\small \texttt{http://developer.nvidia.com/orca/amaz...}}, url = {http://developer.nvidia.com/orca/amaz...}}