8 |
|
.B "\-n spp" |
9 |
|
][ |
10 |
|
.B "\-h|\-q" |
11 |
+ |
][ |
12 |
+ |
.B "\-l maxlobes" |
13 |
|
] |
14 |
|
[ |
15 |
|
.B "bsdf.sir .." |
37 |
|
][ |
38 |
|
.B "{+|-}backward" |
39 |
|
][ |
40 |
< |
.B "\-e expr |
40 |
> |
.B "\-e expr" |
41 |
|
][ |
42 |
< |
.B "\-f file |
42 |
> |
.B "\-f file" |
43 |
|
] |
44 |
|
.B bsdf_func |
45 |
|
.SH DESCRIPTION |
62 |
|
option may be used to reduce this number to 41 patches. |
63 |
|
Neither option is recommended unless the distribution is known to |
64 |
|
be approximately diffuse. |
65 |
+ |
The |
66 |
+ |
.I \-l |
67 |
+ |
option may be used to specify the maximum number of lobes in any |
68 |
+ |
interpolated radial basis function. |
69 |
+ |
The default value is 15000, which generally keeps the interpolation tractable. |
70 |
+ |
Setting the value to 0 turns off this limit. |
71 |
|
.PP |
72 |
|
Normally, multiple samples are taken from random points on each input |
73 |
|
and output patch to improve accuracy. |