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Comparing ray/src/common/objutil.c (file contents):
Revision 2.3 by greg, Thu Apr 2 22:14:01 2020 UTC vs.
Revision 2.4 by greg, Fri May 1 18:55:34 2020 UTC

# Line 599 | Line 599 | newScene(void)
599          return(sc);
600   }
601  
602 + /* Add a vertex to our scene */
603 + int
604 + addVertex(Scene *sc, double x, double y, double z)
605 + {
606 +        sc->vert = chunk_alloc(Vertex, sc->vert, sc->nverts);
607 +        sc->vert[sc->nverts].p[0] = x;
608 +        sc->vert[sc->nverts].p[1] = y;
609 +        sc->vert[sc->nverts].p[2] = z;
610 +        sc->vert[sc->nverts].vflist = NULL;
611 +        return(sc->nverts++);
612 + }
613 +
614 + /* Add a texture coordinate to our scene */
615 + int
616 + addTexture(Scene *sc, double u, double v)
617 + {
618 +        sc->tex = chunk_alloc(TexCoord, sc->tex, sc->ntex);
619 +        sc->tex[sc->ntex].u = u;
620 +        sc->tex[sc->ntex].v = v;
621 +        return(sc->ntex++);
622 + }
623 +
624 + /* Add a surface normal to our scene */
625 + int
626 + addNormal(Scene *sc, double xn, double yn, double zn)
627 + {
628 +        FVECT   nrm;
629 +
630 +        nrm[0] = xn; nrm[1] = yn; nrm[2] = zn;
631 +        if (normalize(nrm) == .0)
632 +                return(-1);
633 +        sc->norm = chunk_alloc(Normal, sc->norm, sc->nnorms);
634 +        VCOPY(sc->norm[sc->nnorms], nrm);
635 +        return(sc->nnorms++);
636 + }
637 +
638 + /* Set current (last) group */
639 + void
640 + setGroup(Scene *sc, const char *nm)
641 + {
642 +        sc->lastgrp = findName(nm, (const char **)sc->grpname, sc->ngrps);
643 +        if (sc->lastgrp >= 0)
644 +                return;
645 +        sc->grpname = chunk_alloc(char *, sc->grpname, sc->ngrps);
646 +        sc->grpname[sc->lastgrp=sc->ngrps++] = savqstr((char *)nm);
647 + }
648 +
649 + /* Set current (last) material */
650 + void
651 + setMaterial(Scene *sc, const char *nm)
652 + {
653 +        sc->lastmat = findName(nm, (const char **)sc->matname, sc->nmats);
654 +        if (sc->lastmat >= 0)
655 +                return;
656 +        sc->matname = chunk_alloc(char *, sc->matname, sc->nmats);
657 +        sc->matname[sc->lastmat=sc->nmats++] = savqstr((char *)nm);
658 + }
659 +
660   /* Duplicate a scene */
661   Scene *
662   dupScene(const Scene *osc)

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