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root/radiance/ray/src/util/dctimestep.c
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Comparing ray/src/util/dctimestep.c (file contents):
Revision 2.13 by greg, Thu Jul 1 22:44:25 2010 UTC vs.
Revision 2.14 by greg, Sun Apr 3 03:06:19 2011 UTC

# Line 350 | Line 350 | sum_images(const char *fspec, const CMATRIX *cv, FILE
350                  FILE            *fp;
351                  int             dt, xr, yr;
352                  COLORV          *psp;
353 +                                                        /* check for zero */
354 +                if ((scv[RED] == .0) & (scv[GRN] == .0) & (scv[BLU] == .0))
355 +                        continue;
356                                                          /* open next picture */
357                  sprintf(fname, fspec, i);
358                  if ((fp = fopen(fname, "r")) == NULL) {

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