| 599 |
|
return(sc); |
| 600 |
|
} |
| 601 |
|
|
| 602 |
< |
/* Add a vertex to our scene */ |
| 602 |
> |
/* Add a vertex to a scene */ |
| 603 |
|
int |
| 604 |
|
addVertex(Scene *sc, double x, double y, double z) |
| 605 |
|
{ |
| 611 |
|
return(sc->nverts++); |
| 612 |
|
} |
| 613 |
|
|
| 614 |
< |
/* Add a texture coordinate to our scene */ |
| 614 |
> |
/* Add a texture coordinate to a scene */ |
| 615 |
|
int |
| 616 |
|
addTexture(Scene *sc, double u, double v) |
| 617 |
|
{ |
| 621 |
|
return(sc->ntex++); |
| 622 |
|
} |
| 623 |
|
|
| 624 |
< |
/* Add a surface normal to our scene */ |
| 624 |
> |
/* Add a surface normal to a scene */ |
| 625 |
|
int |
| 626 |
|
addNormal(Scene *sc, double xn, double yn, double zn) |
| 627 |
|
{ |
| 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 |
+ |
/* Add new face to a scene */ |
| 661 |
+ |
Face * |
| 662 |
+ |
addFace(Scene *sc, VNDX vid[], int nv) |
| 663 |
+ |
{ |
| 664 |
+ |
Face *f; |
| 665 |
+ |
int i; |
| 666 |
+ |
|
| 667 |
+ |
if (nv < 3) |
| 668 |
+ |
return(NULL); |
| 669 |
+ |
f = (Face *)emalloc(sizeof(Face)+sizeof(VertEnt)*(nv-3)); |
| 670 |
+ |
f->flags = 0; |
| 671 |
+ |
f->nv = nv; |
| 672 |
+ |
f->grp = sc->lastgrp; |
| 673 |
+ |
f->mat = sc->lastmat; |
| 674 |
+ |
for (i = 0; i < nv; i++) { /* add each vertex */ |
| 675 |
+ |
int j; |
| 676 |
+ |
f->v[i].vid = vid[i][0]; |
| 677 |
+ |
f->v[i].tid = vid[i][1]; |
| 678 |
+ |
f->v[i].nid = vid[i][2]; |
| 679 |
+ |
f->v[i].fnext = NULL; |
| 680 |
+ |
for (j = i; j-- > 0; ) |
| 681 |
+ |
if (f->v[j].vid == vid[i][0]) |
| 682 |
+ |
break; |
| 683 |
+ |
if (j < 0) { /* first occurrence? */ |
| 684 |
+ |
f->v[i].fnext = sc->vert[vid[i][0]].vflist; |
| 685 |
+ |
sc->vert[vid[i][0]].vflist = f; |
| 686 |
+ |
} else if (nv == 3) /* degenerate triangle? */ |
| 687 |
+ |
f->flags |= FACE_DEGENERATE; |
| 688 |
+ |
} |
| 689 |
+ |
f->next = sc->flist; /* push onto face list */ |
| 690 |
+ |
sc->flist = f; |
| 691 |
+ |
sc->nfaces++; |
| 692 |
+ |
/* check face area */ |
| 693 |
+ |
if (!(f->flags & FACE_DEGENERATE) && faceArea(sc, f, NULL) <= FTINY) |
| 694 |
+ |
f->flags |= FACE_DEGENERATE; |
| 695 |
+ |
return(f); |
| 696 |
|
} |
| 697 |
|
|
| 698 |
|
/* Duplicate a scene */ |
