ply format binary_little_endian 1.0 element vertex 410 property float x property float y property float z property float nx property float ny property float nz element face 812 property list uchar int vertex_indices end_header FqoEDBEeڽ?HyFqE3SBEqK= W=S~=F)mEBE.%ٔs\ FH)mE=BE_=}HFRrEBEbu=3}vFLuECEh;b>tׂFRpkECE?|6iaFR@kE ,DE H̽