# | Line 661 | Line 661 | sample_origin(PARAMS *p, FVECT orig, const FVECT rdir, | |
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661 | projsa[i] = -DOT(sp->snrm, rdir) * sp->area; | |
662 | tarea += projsa[i] *= (double)(projsa[i] > FTINY); | |
663 | } | |
664 | < | if (tarea <= FTINY) { /* wrong side of sender? */ |
664 | > | if (tarea < 0) { /* wrong side of sender? */ |
665 | fputs(progname, stderr); | |
666 | fputs(": internal - sample behind all sender elements!\n", | |
667 | stderr); |
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