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Comparing ray/src/util/genBSDF.pl (file contents):
Revision 2.97 by greg, Wed Sep 17 18:34:21 2025 UTC vs.
Revision 2.98 by greg, Fri Sep 19 16:39:27 2025 UTC

# Line 320 | Line 320 | sub do_ttree_dir {
320                                  qq{-e "r2=rand(-5.37138*recno+67.1737811)" } .
321                                  qq{-e "r3=rand(+3.17603772*recno+83.766771)" } .
322                                  qq{-e "r4=rand(-1.5839226*recno-59.82712)" } .
323 <                                qq{-e "odds(n):if(.5*n-floor(.5*n)-.25,-1,1)"} .
323 >                                qq{-e "odds(n):if(.5*n-floor(.5*n)-.25,-1,1)" } .
324                                  qq{-e "Dx=1-(\$1+r1)/$ns2" } .
325                                  qq{-e "Dy=min(1/$ns,sqrt(1-Dx*Dx))*odds(\$1)*r2" } .
326                                  qq{-e "Dz=sqrt(1-Dx*Dx-Dy*Dy)" } .

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