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Comparing ray/doc/man/man1/gendaymtx.1 (file contents):
Revision 1.1 by greg, Sun Jan 20 02:07:16 2013 UTC vs.
Revision 1.8 by greg, Thu May 24 15:21:15 2018 UTC

# Line 7 | Line 7 | gendaymtx - generate an annual Perez sky matrix from a
7   [
8   .B "\-v"
9   ][
10 + .B "\-h"
11 + ][
12   .B "\-d|\-s"
13   ][
14 + .B "\-r deg"
15 + ][
16   .B "\-m N"
17   ][
18   .B "\-g r g b"
# Line 16 | Line 20 | gendaymtx - generate an annual Perez sky matrix from a
20   .B "\-c r g b"
21   ][
22   .B "-o{f|d}"
23 + ][
24 + .B "-O{0|1}"
25   ]
26   [
27   .B "tape.wea"
# Line 49 | Line 55 | yield 8760x3 (26280) values per output line (row).
55   The
56   .I \-c
57   option may be used to specify a color for the sky.
58 < The gray value should equal 1 for proper energy balance
58 > The gray value should equal 1 for proper energy balance.
59   The default sky color is
60   .I "\-c 0.960 1.004 1.118".
61   Similarly, the
# Line 65 | Line 71 | option may be used to produce a sun-only matrix, with
71   Alternatively, the
72   .I \-s
73   option may be used to exclude any direct solar component from the output.
74 + If there is a sun in the description,
75 + .I gendaymtx
76 + will include its contribution in the four nearest sky patches,
77 + distributing energy according to centroid proximity.
78   .PP
79 + By default,
80 + .I gendaymtx
81 + assumes the positive Y-axis points north such that the first sky patch
82 + is in the Y-axis direction on the horizon, the second patch is just
83 + west of that, and so on spiraling around to the final patch near the zenith.
84   The
85 + .I \-r
86 + (or
87 + .I \-rz)
88 + option rotates the sky the specified number of degrees counter-clockwise
89 + about the zenith, i.e., west of north.
90 + This is in keeping with the effect of passing the output of
91 + .I gensky(1)
92 + or
93 + .I gendaylit(1)
94 + through
95 + .I xform(1)
96 + using a similar transform.
97 + .PP
98 + The
99   .I \-of
100   or
101   .I \-od
# Line 74 | Line 103 | option may be used to specify binary float or double o
103   This is much faster to write and to read, and is therefore preferred on
104   systems that support it.
105   (MS Windows is not one of them.)\0
106 + The
107 + .I \-O1
108 + option specifies that output should be total solar radiance rather
109 + than visible radiance.
110 + The
111 + .I \-h
112 + option prevents the output of the usual header information.
113   Finally, the
114   .I \-v
115   option will enable verbose reporting, which is mostly useful for
# Line 95 | Line 131 | Ian Ashdown wrote most of the code,
131   based on Jean-Jacques Delaunay's original gendaylit(1) implementation.
132   Greg Ward wrote the final parameter parsing and weather tape conversion.
133   .SH "SEE ALSO"
134 < dctimestep(1), genBSDF(1), gendaylit(1), genskyvec(1), rcontrib(1)
134 > dctimestep(1), genBSDF(1), gendaylit(1), gensky(1), genskyvec(1),
135 > rcollate(1), rcontrib(1), xform(1)

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