398 |
|
size of the space. |
399 |
|
|
400 |
|
The Zone entry windows may be manipulated in the following ways. |
401 |
– |
Control-U clears the current window. |
401 |
|
Control-V pastes the contents of the current selection at the |
402 |
|
insertion point. |
403 |
|
Return moves the focus to the next window in the chain. |
404 |
|
|
405 |
+ |
The "Auto" button may be used to set these values based on the bounding |
406 |
+ |
box of one or more Radiance scene files. |
407 |
+ |
|
408 |
+ |
.Zone.Auto |
409 |
+ |
|
410 |
+ |
Use this button to automatically determine the bounding box for this |
411 |
+ |
zone, based on the output of the "getbbox" command run on one or |
412 |
+ |
more Radiance scene files. |
413 |
+ |
The appropriate scene files are entered via a file |
414 |
+ |
selection dialogue box, which comes up after the button is pressed. |
415 |
+ |
|
416 |
+ |
The reason for selecting specific files rather than running getbbox |
417 |
+ |
on the entire scene is that a zone usually does not include large |
418 |
+ |
external objects, which may be present in the complete scene |
419 |
+ |
description. |
420 |
+ |
|
421 |
|
.Zone.Detail |
422 |
|
|
423 |
|
The "Detail" setting indicates the relative level |
505 |
|
(Divide total lumens by 179 lumens/watt to get watts.) |
506 |
|
|
507 |
|
The exposure value may either be given as a positive real value, or |
508 |
< |
as a real value preceeded by a '+' or '-' indicating a positive or |
508 |
> |
as a real value preceded by a '+' or '-' indicating a positive or |
509 |
|
negative number of f-stops (powers of two) from the original value. |
510 |
|
|
511 |
|
If no exposure is given, pfilt will automatically compute the |
584 |
|
added to the picture file name along with the standard ".pic" suffix. |
585 |
|
|
586 |
|
The standard views are specified by strings of the form |
587 |
< |
"[Xx]?[Yy]?[Zz]?[vlah]?". |
587 |
> |
"[Xx]?[Yy]?[Zz]?[vlahc]?". |
588 |
|
(That is, an optional upper or lower case X followed by an optional |
589 |
|
upper or lower case Y followed by an optional upper or lower case Z |
590 |
< |
followed by an optional lower case V, L, A or H.) |
590 |
> |
followed by an optional lower case V, L, A, H or C.) |
591 |
|
The letters indicate the desired view position, where upper case "X" |
592 |
|
means maximum X, lower case "y" means minimum Y and so on. |
593 |
|
The final letter is the view type, where 'v' is perspective (the |
594 |
< |
default), 'l' is parallel, 'a' is angular fisheye, and 'h' is |
595 |
< |
hemispherical fisheye. |
594 |
> |
default), 'l' is parallel, 'a' is angular fisheye, 'h' is |
595 |
> |
hemispherical fisheye and 'c' is for cylindrical panorama. |
596 |
|
A perspective view from maximum X, minimum Y would be "Xy" or |
597 |
|
"Xyv". |
598 |
|
A parallel view from maximum Z would be "Zl". |
633 |
|
Consult the rpict(1) manual page for a full description of the various |
634 |
|
view options, all of which begin with "-v". |
635 |
|
Just briefly, the "-vt?" option sets the view type, where "?" is |
636 |
< |
replaced by one of the letters "v, l, a or h", corresponding to |
637 |
< |
perspective, parallel, angular and hemispherical fisheye, respectively. |
636 |
> |
replaced by one of the letters "v, l, a, h or c", corresponding to |
637 |
> |
perspective, parallel, angular fisheye, hemispherical fisheye |
638 |
> |
and cylindrical panorama, respectively. |
639 |
|
The "-vp x y z" option sets the view position (eyepoint), where "x y z" |
640 |
|
is replaced by the position in 3-space. |
641 |
|
The "-vd xd yd zd" option sets the view direction, where "xd yd zd" |
697 |
|
for the convenience of entering a new view. |
698 |
|
It has no effect on the rad input variables. |
699 |
|
|
684 |
– |
Note that Control-U will always clear an entry box whose cursor is |
685 |
– |
active. |
686 |
– |
|
700 |
|
.Views.Default |
701 |
|
|
702 |
|
The "Set Default" button may be used to make the selected view the |
719 |
|
the positive Y axis (+Y), the positive Z axis (+Z), the negative |
720 |
|
X axis (-X), the negative Y axis (-Y), or the negative Z axis (-Z). |
721 |
|
|
722 |
< |
This setting may always be overriden by the "-vu xd yd zd" option, |
722 |
> |
This setting may always be overridden by the "-vu xd yd zd" option, |
723 |
|
and will be altered for a particular view if it happens to be |
724 |
|
parallel to the view direction. |
725 |
|
|
726 |
+ |
.Views.Eyesep |
727 |
+ |
|
728 |
+ |
The eye separation is used for generating stereo views of |
729 |
+ |
the scene. |
730 |
+ |
It is the measured distance between a viewer's pupils in world |
731 |
+ |
coordinate units. |
732 |
+ |
It is not used directly by rad, but should be set for other programs |
733 |
+ |
that need it, such as rholo and glrad. |
734 |
+ |
|
735 |
|
.Views.Picture |
736 |
|
|
737 |
|
The root picture file name is given in the "Picture" entry window. |
767 |
|
|
768 |
|
The default value for this variable is "512". |
769 |
|
|
770 |
< |
.Views.Rawsave |
770 |
> |
.Views.Rawfile |
771 |
|
|
772 |
< |
The "Rawsave" check box determines whether or not the raw output picture |
772 |
> |
The "Rawfile" entry window determines if and where the raw output picture |
773 |
|
from rpict will be saved. |
774 |
< |
The default action (box unchecked) is to remove this file, since it |
774 |
> |
If the entry is empty, the file will be removed after rendering and |
775 |
> |
filtering. |
776 |
> |
This is the normal action, since the raw file |
777 |
|
takes up disk space and is not generally useful. |
778 |
< |
However, if you wish to perform some special filtering function on |
779 |
< |
the file, this file can be renamed instead of removed by checking this box. |
780 |
< |
The final name in this case will be the same as the finished |
781 |
< |
picture, except with a ".rwp" suffix. |
778 |
> |
However, if you wish to perform some special filtering function, |
779 |
> |
this file can be renamed instead of removed by giving a |
780 |
> |
root file name in this entry window. |
781 |
> |
The final name in this case will be the given root plus and |
782 |
> |
underscore plus the view name followed by a ".pic" suffix. |
783 |
|
|
784 |
+ |
In the special case when the raw file name and picture file name are |
785 |
+ |
the same, the raw file is saved and no filtering takes place. |
786 |
+ |
|
787 |
+ |
.Views.Zfile |
788 |
+ |
|
789 |
+ |
The "Zfile" entry window gives the root name of the file in which to |
790 |
+ |
store the raw (binary floating point) distances to pixels in the |
791 |
+ |
original generated image. |
792 |
+ |
If this entry is empty, then no z-file will be saved. |
793 |
+ |
|
794 |
+ |
The final z-file name will be the given root plus an underscore plus |
795 |
+ |
the view name plus a ".zbf" suffix. |
796 |
+ |
|
797 |
+ |
To convert this image to human-readable form, the program "od" will |
798 |
+ |
work on some systems, or the Radiance "pvalue" program may be used |
799 |
+ |
to first convert it to a greyscale Radiance picture using the |
800 |
+ |
options "-r -h -b -df `getinfo -d < pictname`" where "pictname" is |
801 |
+ |
replaced by the raw picture file name. |
802 |
+ |
(Getinfo simply gets the original image dimensions, which are not |
803 |
+ |
stored in the z-file.) |
804 |
+ |
|
805 |
|
.Views.Copy |
806 |
|
|
807 |
|
The "Copy" button in the Views screen permits those variables |
1291 |
|
|
1292 |
|
The "Delete" button on the Results screen is used to remove the |
1293 |
|
selected picture files from the filesystem. |
1294 |
+ |
Associated raw picture and z-buffer files |
1295 |
+ |
will also be deleted if they exist. |
1296 |
|
Verification is required before any action is taken. |
1297 |
|
|
1298 |
|
.Results.Display |
1380 |
|
The print command window on the Results screen contains the system |
1381 |
|
command to use in printing out finished Radiance pictures. |
1382 |
|
The "%s" format field, which must appear somewhere in the command, |
1383 |
< |
is replaced by the selected Radiance picture file name(s). |
1383 |
> |
is replaced by the selected Radiance picture file name. |
1384 |
> |
This command is executed multiple times if multiple files are |
1385 |
> |
selected. |
1386 |
|
|
1387 |
|
The default command is "ra_ps %s | lpr", which converts the Radiance |
1388 |
|
picture to a black and white PostScript file and sends it to the lpr |
1389 |
|
print spooler. |
1390 |
+ |
Add a "-c" option to "ra_ps" if the printer supports color. |
1391 |
|
If your printer does not understand PostScript, or your system does |
1392 |
|
not support lpr, this command must obviously be changed. |