8 |
|
.B "\-m N" |
9 |
|
][ |
10 |
|
.B "\-c r g b" |
11 |
+ |
][ |
12 |
+ |
.B "\-d" |
13 |
|
] |
14 |
|
.SH DESCRIPTION |
15 |
|
.I Genskyvec |
44 |
|
The gray value should equal 1 for proper energy balance |
45 |
|
The default sky color is |
46 |
|
.I "\-c 0.960 1.004 1.118". |
47 |
+ |
.PP |
48 |
+ |
The |
49 |
+ |
.I \-d |
50 |
+ |
option may be used to produce a sun-only vector, with no sky contributions. |
51 |
+ |
If a time of day is selected or sky type that has no sun, then a zero vector |
52 |
+ |
is produced. |
53 |
|
.SH EXAMPLE |
54 |
|
To generate 578 patches corresponding to a 2x2 subdivision of the |
55 |
|
Tregenza sky on a sunny equinox noon: |