| 1 |
|
.\" RCSid "$Id$" |
| 2 |
|
.TH RTPICT 1 3/19/2018 RADIANCE |
| 3 |
|
.SH NAME |
| 4 |
< |
rtpict - generate a RADIANCE picture or layered image using rtrace |
| 4 |
> |
rtpict - generate a RADIANCE picture, hyperspectral image, or layers using rtrace |
| 5 |
|
.SH SYNOPSIS |
| 6 |
|
.B rtpict |
| 7 |
|
.B "-n nproc" |
| 8 |
|
[ |
| 9 |
+ |
.B -co |
| 10 |
+ |
][ |
| 11 |
|
.B "-o[vrxlLRXnNsmM] out_dir" |
| 12 |
|
][ |
| 13 |
|
.B "-d ref_depth/unit" |
| 21 |
|
.B octree |
| 22 |
|
.SH DESCRIPTION |
| 23 |
|
.I Rtpict |
| 24 |
< |
is a script that generates a picture from the RADIANCE scene given in |
| 24 |
> |
is a script that generates a picture or hyperspectral image |
| 25 |
> |
from the RADIANCE scene given in |
| 26 |
|
.I octree |
| 27 |
|
and sends it to the standard output, or to a file specified with the |
| 28 |
|
.I \-o |
| 29 |
|
option. |
| 30 |
|
Most options and defaults are the same as |
| 31 |
|
.I rpict(1), |
| 32 |
< |
although a few switches are silently ignored. |
| 33 |
< |
Options incompatible with multi-processing can generate an error. |
| 32 |
> |
although a few options are silently ignored, and the |
| 33 |
> |
.I rtrace(1) |
| 34 |
> |
.I \-co |
| 35 |
> |
boolean switch is supported. |
| 36 |
> |
Options incompatible with multi-processing may generate an error. |
| 37 |
|
.PP |
| 38 |
|
The |
| 39 |
< |
.I rtrace(1) |
| 39 |
> |
.I rtrace |
| 40 |
|
tool is called with |
| 41 |
|
.I vwrays(1) |
| 42 |
|
to perform the actual work. |
| 84 |
|
Different encodings are associated with different data types. |
| 85 |
|
Color data (from the 'v', 'r', and 'x' types) will be converted to |
| 86 |
|
a flat RGBE picture by |
| 87 |
< |
.I pvalue(1). |
| 87 |
> |
.I pvalue(1), |
| 88 |
> |
unless the |
| 89 |
> |
.I \-co+ |
| 90 |
> |
option is specified and |
| 91 |
> |
.I \-cs |
| 92 |
> |
is greater than 3. |
| 93 |
> |
In this case, a hyperspectral image will be generated for each |
| 94 |
> |
of the value types, converted by |
| 95 |
> |
.I rcomb(1) |
| 96 |
> |
and with its suffix set to ".hsr" rather than ".hdr". |
| 97 |
|
Distances (from the 'l', 'L', 'R', and 'X' types) will be |
| 98 |
|
converted to a 16-bit representation by |
| 99 |
|
.I rcode_depth(1), |
| 103 |
|
units, which applies to the overall scene. |
| 104 |
|
Surface normals (from the 'n' and 'N' types) will be converted |
| 105 |
|
to a 32-bit representation by |
| 106 |
< |
.I rcode_normal(1). |
| 106 |
> |
.I rcode_norm(1). |
| 107 |
|
Finally, identifiers (from the 's', 'm', and 'M' types) will be |
| 108 |
|
converted to a 16-bit index format by |
| 109 |
|
.I rcode_ident(1). |
| 113 |
|
option is used to turn on irradiane output, then the picture associated |
| 114 |
|
with the 'v' type will be renamed |
| 115 |
|
.I "irradiance.hdr" |
| 116 |
< |
and some other output types become irrelevant (i.e., 'r', 'x', 'R', and 'X'). |
| 116 |
> |
or |
| 117 |
> |
.I "irradiance.hsr" |
| 118 |
> |
and some other output types become irrelevant |
| 119 |
> |
(i.e., 'r', 'x', 'R', and 'X'). |
| 120 |
|
If one or more of the associated output files already exists in the |
| 121 |
|
destination directory, an error will be printed and the command will abort. |
| 122 |
|
.SH EXAMPLES |
| 127 |
|
To render radiance, first surface distance, and normals in a layered image: |
| 128 |
|
.IP "" .2i |
| 129 |
|
rtpict -n 8 -vf fish.vf @render.opt -ovLn fisholay scene.oct |
| 130 |
+ |
.PP |
| 131 |
+ |
To render a hyperspectral irradiance image with 18 spectral samples: |
| 132 |
+ |
.IP "" .2i |
| 133 |
+ |
rtpict -vf inside.vf -i+ -cs 18 -co+ scene.oct > scene_inside.hsr |
| 134 |
|
.SH AUTHOR |
| 135 |
|
Greg Ward |
| 136 |
|
.SH "SEE ALSO" |
| 137 |
|
getinfo(1), mkpmap(1), oconv(1), pfilt(1), |
| 138 |
< |
pvalue(1), rad(1), rcode_depth(1), rcode_normal(1), rcode_ident(1), |
| 139 |
< |
rcrop(1), rpiece(1), rpict(1), rsplit(1), rtrace(1), rvu(1), vwrays(1) |
| 138 |
> |
pvalue(1), rad(1), rcode_depth(1), rcode_norm(1), rcode_ident(1), |
| 139 |
> |
rcomb(1), rcrop(1), rmtxop(1), |
| 140 |
> |
rpiece(1), rpict(1), rsplit(1), rtrace(1), rvu(1), vwrays(1) |
