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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 2.5 by schorsch, Tue Mar 30 16:13:00 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 > int
41 > o_face(         /* determine if face intersects cube */
42 >        OBJREC  *o,
43 >        CUBE  *cu
44 > )
45   {
46          FVECT  cumin, cumax;
47          FVECT  v1, v2;
# Line 59 | Line 60 | CUBE  *cu;
60  
61          vloc = ABOVE | BELOW;           /* check vertices */
62          for (i = 0; i < f->nv; i++)
63 <                if (j = plocate(VERTEX(f,i), cumin, cumax))
63 >                if ( (j = plocate(VERTEX(f,i), cumin, cumax)) )
64                          vloc &= j;
65                  else
66                          return(O_HIT);  /* vertex inside */

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