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 |
|
|