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Comparing ray/doc/notes/ReleaseNotes (file contents):
Revision 1.209 by greg, Mon Nov 26 07:04:07 2012 UTC vs.
Revision 1.215 by greg, Tue Feb 5 06:00:19 2013 UTC

# Line 1858 | Line 1858 | to Lars Grobe for help identifying this problem.
1858   Fixed bug in depth-of-field blur where view distance was measured from
1859   fore clipping plane rather than viewpoint.  Thanks to Peter A-B for
1860   pointing this out.
1861 +
1862 + Added options to dctimestep to allow multiple time steps (-n)
1863 + and multiple output pictures or sensor files (-o).  Also added -i
1864 + option to specify float (-if) or double (-id) input for sky matrix.
1865 +
1866 + Created gendaymtx program to compute annual sky patch matrix based
1867 + on Ian Ashdown's implementation of Perez all-weather sky model.
1868 + Output can be sent directly to dctimestep in ASCII or binary stream.
1869 +
1870 + Replaced existing gendaylit.c with improved version from Wendelin Sprenger
1871 + and Jan Wienold of ISE.
1872 +
1873 + Improved accuracy of ambient calculation for large -ad settings.  Thanks
1874 + to Lars Grobe for noticing the problem.
1875 +
1876 + Added -r option to gendaymtx to rotate the sky the specified number of
1877 + degrees about the zenith as suggested by A. McNeil.

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