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-.TH OBJ 2
-.SH NAME
-objparse,
-objfree,
-OBJfmt,
-OBJfmtinstall
-\- OBJ parser
-.SH SYNOPSIS
-.ta 0.7i +0.7i +0.7i +0.7i +0.7i +0.7i +0.7i
-.EX
-#include <u.h>
-#include <libc.h>
-#include <obj.h>
-
-enum {
- OBJVGeometric,
- OBJVTexture,
- OBJVNormal,
- OBJVParametric,
- OBJNVERT
-};
-
-enum {
- OBJEPoint,
- OBJELine,
- OBJEFace,
- OBJECurve,
- OBJECurve2,
- OBJESurface
-};
-
-enum {
- OBJHTSIZE = 17
-};
-
-typedef struct
-{
- union {
- struct { double x, y, z, w; }; /* geometric */
- struct { double u, v, vv; }; /* texture and parametric */
- struct { double i, j, k; }; /* normal */
- };
-} OBJVertex;
-
-typedef struct
-{
- OBJVertex *verts;
- int nvert;
-} OBJVertexArray;
-
-typedef struct
-{
- int *indices;
- int nindex;
- int type;
- OBJElem *next;
-} OBJElem;
-
-typedef struct
-{
- char *name;
- OBJElem *child;
- OBJObject *next;
-} OBJObject;
-
-typedef struct
-{
- OBJVertexArray vertdata[OBJNVERT];
- OBJObject *objtab[OBJHTSIZE];
-} OBJ;
-
-OBJ *objparse(char *file);
-void objfree(OBJ *obj);
-int OBJfmt(Fmt*);
-void OBJfmtinstall(void);
-.EE
-.SH DESCRIPTION
-An OBJ structure contains geometry and material information about a set of 3D objects
-.SH SOURCE
-.B /sys/src/libobj
-.SH SEE ALSO
-.IR geometry (2)
-.br
-http://paulbourke.net/dataformats/obj
-.br
-https://people.sc.fsu.edu/~jburkardt/data/obj/obj.html
-.SH DIAGNOSTICS
-.SH BUGS