Corrected Bug in geometryNeedUpdate
Corrected Bug in geometryNeedUpdate

If you reduce face size and try to compute face normals without saying
that elements need update threejs crash…

cnr-isti-vclab/meshlabjs,cignoni/meshlabjs,cnr-isti-vclab/meshlabjs,cignoni/meshlabjs,cnr-isti-vclab/meshlabjs,cignoni/meshlabjs,cnr-isti-vclab/meshlabjs,cignoni/meshlabjs,cnr-isti-vclab/meshlabjs,cignoni/meshlabjs