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root/radiance/ray/src/px/mt160r.c
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Comparing ray/src/px/mt160r.c (file contents):
Revision 1.7 by greg, Thu Apr 18 14:35:09 1991 UTC vs.
Revision 1.8 by greg, Mon May 6 13:14:21 1991 UTC

# Line 118 | Line 118 | COLR  clr;
118   register int  x;
119   {
120          static int  cerr[NCOLS];
121 <        static int  err;
121 >        static int  err, errp;
122          int  b;
123          register int  isblack;
124  
125          b = normbright(clr);
126 +        errp = err;
127          err += b + cerr[x];
128          isblack = err < 128;
129          if (!isblack) err -= 256;
130 <        cerr[x] = err /= 2;
130 >        err /= 3;
131 >        cerr[x] = err + errp;
132          return(isblack);
133   }

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