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root/radiance/ray/src/ot/o_face.c
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Comparing ray/src/ot/o_face.c (file contents):
Revision 2.2 by greg, Sat Feb 22 02:07:26 2003 UTC vs.
Revision 2.4 by schorsch, Sat Mar 27 12:41:45 2004 UTC

# Line 37 | Line 37 | static const char      RCSid[] = "$Id$";
37   *      5) If test 4 fails, we have no intersection.
38   */
39  
40 <
41 < o_face(o, cu)                   /* determine if face intersects cube */
42 < OBJREC  *o;
43 < CUBE  *cu;
40 > /* XXX this is extern, but not declared in any header file yet */
41 > int
42 > o_face(                 /* determine if face intersects cube */
43 >        OBJREC  *o,
44 >        CUBE  *cu
45 > )
46   {
47          FVECT  cumin, cumax;
48          FVECT  v1, v2;
# Line 59 | Line 61 | CUBE  *cu;
61  
62          vloc = ABOVE | BELOW;           /* check vertices */
63          for (i = 0; i < f->nv; i++)
64 <                if (j = plocate(VERTEX(f,i), cumin, cumax))
64 >                if ( (j = plocate(VERTEX(f,i), cumin, cumax)) )
65                          vloc &= j;
66                  else
67                          return(O_HIT);  /* vertex inside */

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