490 |
|
(Divide total lumens by 179 lumens/watt to get watts.) |
491 |
|
|
492 |
|
The exposure value may either be given as a positive real value, or |
493 |
< |
as a real value preceeded by a '+' or '-' indicating a positive or |
493 |
> |
as a real value preceded by a '+' or '-' indicating a positive or |
494 |
|
negative number of f-stops (powers of two) from the original value. |
495 |
|
|
496 |
|
If no exposure is given, pfilt will automatically compute the |
569 |
|
added to the picture file name along with the standard ".pic" suffix. |
570 |
|
|
571 |
|
The standard views are specified by strings of the form |
572 |
< |
"[Xx]?[Yy]?[Zz]?[vlah]?". |
572 |
> |
"[Xx]?[Yy]?[Zz]?[vlahc]?". |
573 |
|
(That is, an optional upper or lower case X followed by an optional |
574 |
|
upper or lower case Y followed by an optional upper or lower case Z |
575 |
< |
followed by an optional lower case V, L, A or H.) |
575 |
> |
followed by an optional lower case V, L, A, H or C.) |
576 |
|
The letters indicate the desired view position, where upper case "X" |
577 |
|
means maximum X, lower case "y" means minimum Y and so on. |
578 |
|
The final letter is the view type, where 'v' is perspective (the |
579 |
< |
default), 'l' is parallel, 'a' is angular fisheye, and 'h' is |
580 |
< |
hemispherical fisheye. |
579 |
> |
default), 'l' is parallel, 'a' is angular fisheye, 'h' is |
580 |
> |
hemispherical fisheye and 'c' is for cylindrical panorama. |
581 |
|
A perspective view from maximum X, minimum Y would be "Xy" or |
582 |
|
"Xyv". |
583 |
|
A parallel view from maximum Z would be "Zl". |
618 |
|
Consult the rpict(1) manual page for a full description of the various |
619 |
|
view options, all of which begin with "-v". |
620 |
|
Just briefly, the "-vt?" option sets the view type, where "?" is |
621 |
< |
replaced by one of the letters "v, l, a or h", corresponding to |
622 |
< |
perspective, parallel, angular and hemispherical fisheye, respectively. |
621 |
> |
replaced by one of the letters "v, l, a, h or c", corresponding to |
622 |
> |
perspective, parallel, angular fisheye, hemispherical fisheye |
623 |
> |
and cylindrical panorama, respectively. |
624 |
|
The "-vp x y z" option sets the view position (eyepoint), where "x y z" |
625 |
|
is replaced by the position in 3-space. |
626 |
|
The "-vd xd yd zd" option sets the view direction, where "xd yd zd" |
707 |
|
the positive Y axis (+Y), the positive Z axis (+Z), the negative |
708 |
|
X axis (-X), the negative Y axis (-Y), or the negative Z axis (-Z). |
709 |
|
|
710 |
< |
This setting may always be overriden by the "-vu xd yd zd" option, |
710 |
> |
This setting may always be overridden by the "-vu xd yd zd" option, |
711 |
|
and will be altered for a particular view if it happens to be |
712 |
|
parallel to the view direction. |
713 |
|
|
746 |
|
|
747 |
|
The default value for this variable is "512". |
748 |
|
|
749 |
+ |
.Views.Rawfile |
750 |
+ |
|
751 |
+ |
The "Rawfile" entry window determines if and where the raw output picture |
752 |
+ |
from rpict will be saved. |
753 |
+ |
If the entry is empty, the file will be removed after rendering and |
754 |
+ |
filtering. |
755 |
+ |
This is the normal action, since the raw file |
756 |
+ |
takes up disk space and is not generally useful. |
757 |
+ |
However, if you wish to perform some special filtering function, |
758 |
+ |
this file can be renamed instead of removed by giving a |
759 |
+ |
root file name in this entry window. |
760 |
+ |
The final name in this case will be the given root plus and |
761 |
+ |
underscore plus the view name followed by a ".pic" suffix. |
762 |
+ |
|
763 |
+ |
In the special case when the raw file name and picture file name are |
764 |
+ |
the same, the raw file is saved and no filtering takes place. |
765 |
+ |
|
766 |
+ |
.Views.Zfile |
767 |
+ |
|
768 |
+ |
The "Zfile" entry window gives the root name of the file in which to |
769 |
+ |
store the raw (binary floating point) distances to pixels in the |
770 |
+ |
original generated image. |
771 |
+ |
If this entry is empty, then no z-file will be saved. |
772 |
+ |
|
773 |
+ |
The final z-file name will be the given root plus an underscore plus |
774 |
+ |
the view name plus a ".zbf" suffix. |
775 |
+ |
|
776 |
+ |
To convert this image to human-readable form, the program "od" will |
777 |
+ |
work on some systems, or the Radiance "pvalue" program may be used |
778 |
+ |
to first convert it to a greyscale Radiance picture using the |
779 |
+ |
options "-r -h -b -df `getinfo -d < pictname`" where "pictname" is |
780 |
+ |
replaced by the raw picture file name. |
781 |
+ |
(Getinfo simply gets the original image dimensions, which are not |
782 |
+ |
stored in the z-file.) |
783 |
+ |
|
784 |
|
.Views.Copy |
785 |
|
|
786 |
|
The "Copy" button in the Views screen permits those variables |
1270 |
|
|
1271 |
|
The "Delete" button on the Results screen is used to remove the |
1272 |
|
selected picture files from the filesystem. |
1273 |
+ |
Associated raw picture and z-buffer files |
1274 |
+ |
will also be deleted if they exist. |
1275 |
|
Verification is required before any action is taken. |
1276 |
|
|
1277 |
|
.Results.Display |
1359 |
|
The print command window on the Results screen contains the system |
1360 |
|
command to use in printing out finished Radiance pictures. |
1361 |
|
The "%s" format field, which must appear somewhere in the command, |
1362 |
< |
is replaced by the selected Radiance picture file name(s). |
1362 |
> |
is replaced by the selected Radiance picture file name. |
1363 |
> |
This command is executed multiple times if multiple files are |
1364 |
> |
selected. |
1365 |
|
|
1366 |
|
The default command is "ra_ps %s | lpr", which converts the Radiance |
1367 |
|
picture to a black and white PostScript file and sends it to the lpr |
1368 |
|
print spooler. |
1369 |
+ |
Add a "-c" option to "ra_ps" if the printer supports color. |
1370 |
|
If your printer does not understand PostScript, or your system does |
1371 |
|
not support lpr, this command must obviously be changed. |