| 72 |
|
.PP |
| 73 |
|
The |
| 74 |
|
.I \+C |
| 75 |
< |
option specifies that the output XML should include color information, |
| 76 |
< |
which is interpreted by the rendering programs. |
| 75 |
> |
option specifies that the output XML should include tristimulus |
| 76 |
> |
color information, which is interpreted by the rendering programs. |
| 77 |
|
The default option |
| 78 |
|
.I \-C |
| 79 |
|
reduces all BSDF data to grayscale. |
| 80 |
+ |
If the input is spectral and a |
| 81 |
+ |
.I \-cs |
| 82 |
+ |
parameter of 9 or more is specified as part of the rendering |
| 83 |
+ |
.I \-r |
| 84 |
+ |
option list, then full spectral result will be |
| 85 |
+ |
reduced to an XYZ-equivalent CIE color space in the XML output. |
| 86 |
|
.PP |
| 87 |
|
The |
| 88 |
|
.I \-a |
| 89 |
|
option turns off reciprocity averaging for tensor tree output. |
| 90 |
< |
Normally on (+a), this ensures that the tensor BRDF obeys Helmholtz reciprocity. |
| 91 |
< |
However, in certain rare cases, reciprocity averaging can cause unwanted noise in the output. |
| 90 |
> |
Normally on (+a), this ensures that each tensor-tree hemisphere follows symmetry |
| 91 |
> |
implied by Helmholtz reciprocity, and is designed to reduce ray sampling noise. |
| 92 |
> |
However, for some systems, reciprocity averaging can actually make the output worse. |
| 93 |
|
.PP |
| 94 |
|
The geometry must fit a rectangular profile, whose width is along the X-axis, |
| 95 |
|
height is in the Y-axis, and depth is in the Z-axis. |
| 207 |
|
Greg Ward |
| 208 |
|
.SH "SEE ALSO" |
| 209 |
|
dctimestep(1), gendaymtx(1), genklemsamp(1), genskyvec(1), mkillum(1), |
| 210 |
< |
pkgBSDF(1), rcontrib(1), rfluxmtx(1), rmtxop(1), rtrace(1) wrapBSDF(1) |
| 210 |
> |
pkgBSDF(1), rcomb(1), rcontrib(1), rfluxmtx(1), rmtxop(1), rtrace(1) wrapBSDF(1) |
