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Comparing ray/src/rt/ambcomp.c (file contents):
Revision 2.87 by greg, Sun Dec 12 19:55:43 2021 UTC vs.
Revision 2.88 by greg, Wed Dec 15 01:38:50 2021 UTC

# Line 25 | Line 25 | static const char      RCSid[] = "$Id$";
25   #define MINADIV         7       /* minimum # divisions in each dimension */
26   #endif
27  
28 – extern void             SDsquare2disk(double ds[2], double seedx, double seedy);
29 –
28   typedef struct {
29          COLOR   v;              /* hemisphere sample value */
30          float   d;              /* reciprocal distance */
# Line 100 | Line 98 | ambsample(                             /* initial ambient division sample */
98          AMBSAMP *ap = &ambsam(hp,i,j);
99          RAY     ar;
100          int     hlist[3], ii;
101 <        double  spt[2], zd;
101 >        RREAL   spt[2];
102 >        double  zd;
103                                          /* generate hemispherical sample */
104                                          /* ambient coefficient for weight */
105          if (ambacc > FTINY)
# Line 118 | Line 117 | ambsample(                             /* initial ambient division sample */
117          hlist[2] = i;
118          multisamp(spt, 2, urand(ilhash(hlist,3)+n));
119   resample:
120 <        SDsquare2disk(spt, (j+spt[1])/hp->ns, (i+spt[0])/hp->ns);
120 >        square2disk(spt, (j+spt[1])/hp->ns, (i+spt[0])/hp->ns);
121          zd = sqrt(1. - spt[0]*spt[0] - spt[1]*spt[1]);
122          for (ii = 3; ii--; )
123                  ar.rdir[ii] =   spt[0]*hp->ux[ii] +

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