nx_obj_import.nx

nx_obj_import.nx -- sovereign Wavefront OBJ READER. The missing half of nx_obj_export: the ecosystem could WRITE meshes and could not READ them, so no externally-authored geometry could ever enter the pipeline. This is the ingest gate for any licensed/CC scan or sculpt. ★BUILT FOR REAL-WORLD OBJ, NOT JUST OUR OWN EXPORT. Files from Blender/scanners/Commons differ from what nx_obj_export emits in three ways that each break a naive parser: 1. FLOATING-POINT vertex coords ("v 0.123456 -1.5 2.0e-1") -- our exporter writes integers. Parsed into fx1024 fixed point, including exponent notation. 2. NEGATIVE face indices (-1 = most recent vertex), the relative form in the OBJ spec. 3. N-GONS (quads are everywhere in DCC exports) -- fan-triangulated, not rejected. Also tolerates v/vt/vn face forms (a, a/b, a//c, a/b/c), CRLF, and unknown directives. verts land in fx1024 units, matching nx_obj_export/nx_meshgen so the mesh stack composes. usage as a lib: oi_read(path, vbuf, fbuf, vcap, fcap, counts) -> 0 ok, negative on error counts[0]=nv counts[1]=nf license_tier: ORIGINAL