Fix the crash from searching for closest umbra vertex by initialized the starting index correctly. Fix another potential crash related to ray intersection by introducing epsilon. b/18315089 Change-Id: I9ac9a781a885701a8388714d44f79a1d905e5d33
Fix the crash from searching for closest umbra vertex by initialized the starting index correctly. Fix another potential crash related to ray intersection by introducing epsilon. b/18315089 Change-Id: I9ac9a781a885701a8388714d44f79a1d905e5d33