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) |