Former-commit-id: dd296ce0e7c4128c35b41cbe753ffb572858ba6c
What a huge commit Former-commit-id: 38ac5eebf70adc1180f571f6006192d28fb99897
Renamed BaseGeom to PhysGeom, made it a reference-counted class Former-commit-id: 5b3a2921addb537c2744346edc9c74eafb3260b0