| 883 |
|
It only means that some accuracy and possibly some smoothness |
| 884 |
|
will be traded for speed in the shadow calculations. |
| 885 |
|
|
| 886 |
+ |
.Options.Pgmap |
| 887 |
+ |
|
| 888 |
+ |
The "Pgmap" specifies the file to hold the global photons computed |
| 889 |
+ |
by the "mkpmap" command, followed by the number of photons to generate |
| 890 |
+ |
(required). |
| 891 |
+ |
A typical photon count for a global map is on the order of 100-200K. |
| 892 |
+ |
(A 'K', 'M', or 'G' may follow the value to indicate thousands, millions, |
| 893 |
+ |
or billions of photons.) |
| 894 |
+ |
By convention, photon map files are given a ".pmp" suffix. |
| 895 |
+ |
An optional third parameter specifies the bandwidth to use |
| 896 |
+ |
for the global photons during rendering, and this value should be |
| 897 |
+ |
around 50. |
| 898 |
+ |
|
| 899 |
+ |
.Options.PgmDelete |
| 900 |
+ |
|
| 901 |
+ |
The "Delete" button next to the "Pgmap" window on the Options |
| 902 |
+ |
screen allows you to remove the named global photon map file. |
| 903 |
+ |
This is usually done when a change is made to the "mkpmap" options, |
| 904 |
+ |
as the file will be regenerated automatically after most scene changes. |
| 905 |
+ |
|
| 906 |
+ |
.Options.Pcmap |
| 907 |
+ |
|
| 908 |
+ |
The "Pcmap" specifies the file to hold the caustic photons computed |
| 909 |
+ |
by the "mkpmap" command, followed by the number of photons to generate |
| 910 |
+ |
(required). |
| 911 |
+ |
A typical photon count for a global map is on the order of 1000K (1M). |
| 912 |
+ |
(A 'K', 'M', or 'G' may follow the value to indicate thousands, millions, |
| 913 |
+ |
or billions of photons.) |
| 914 |
+ |
By convention, photon map files are given a ".pmp" suffix. |
| 915 |
+ |
An optional third parameter specifies the bandwidth to use |
| 916 |
+ |
for the global photons during rendering, and this value should be |
| 917 |
+ |
around 50. |
| 918 |
+ |
(See the "Pgmap" topic under the current help category.) |
| 919 |
+ |
|
| 920 |
+ |
.Options.PcmDelete |
| 921 |
+ |
|
| 922 |
+ |
The "Delete" button next to the "Pcmap" window on the Options |
| 923 |
+ |
screen allows you to remove the named caustic photon map file. |
| 924 |
+ |
This is usually done when a change is made to the "mkpmap" options, |
| 925 |
+ |
as the file will be regenerated automatically after most scene changes. |
| 926 |
+ |
|
| 927 |
|
.Options.Ambfile |
| 928 |
|
|
| 929 |
|
The "Ambfile" is the file used to store Radiance ambient values for |
| 1008 |
|
.Options.Mkillum |
| 1009 |
|
|
| 1010 |
|
The "mkillum opts" window may be used to specify options to the |
| 1011 |
< |
mkillum(1) command, whose options are actually passed to rtrace(1). |
| 1011 |
> |
mkillum(1) command. |
| 1012 |
|
These options apply only if there are one or more "Illum" files |
| 1013 |
|
named on the Scene screen. |
| 1014 |
|
|
| 1015 |
|
It is very important to set mkillum options sensibly, |
| 1016 |
|
since rad does not have the intelligence to do it for you. |
| 1017 |
+ |
|
| 1018 |
+ |
.Options.Mkpmap |
| 1019 |
+ |
|
| 1020 |
+ |
The "mkpmap opts" window may be used to specify options |
| 1021 |
+ |
to the mkpmap(1) command. |
| 1022 |
+ |
There are no default values, and rad does not set these |
| 1023 |
+ |
options intelligently. |
| 1024 |
|
|
| 1025 |
|
.Options.Render |
| 1026 |
|
|
