| 35 |
|
.I rpict(1), |
| 36 |
|
.I pfilt(1), |
| 37 |
|
and/or |
| 38 |
< |
.I rview(1) |
| 38 |
> |
.I rvu(1) |
| 39 |
|
to render a specific scene. |
| 40 |
|
Variables in |
| 41 |
|
.I rfile |
| 131 |
|
The |
| 132 |
|
.I \-o |
| 133 |
|
option specifies an output device for |
| 134 |
< |
.I rview |
| 134 |
> |
.I rvu |
| 135 |
|
(usually "x11") |
| 136 |
|
and runs this interactive program instead, using the first view in |
| 137 |
|
.I rfile |
| 200 |
|
It is important to set this variable properly as it is used to |
| 201 |
|
determine the ambient value. |
| 202 |
|
An appropriate setting may be discovered by running |
| 203 |
< |
.I rview |
| 203 |
> |
.I rvu |
| 204 |
|
and noting the exposure given by the "exposure =" command. |
| 205 |
|
As in |
| 206 |
< |
.I rview |
| 206 |
> |
.I rvu |
| 207 |
|
and |
| 208 |
|
.I pfilt, |
| 209 |
|
the exposure setting may be given either as a multiplier or as a |
| 210 |
< |
number of f-stop adjustments (eg. +2 or -1.5). |
| 210 |
> |
number of f\-stop adjustments (eg. +2 or \-1.5). |
| 211 |
|
There is no default value for this variable. |
| 212 |
|
If it is not given, an average level will be computed by |
| 213 |
|
.I pfilt |
| 318 |
|
.TP |
| 319 |
|
.BR UP |
| 320 |
|
The vertical axis for this scene. |
| 321 |
< |
A negative axis may be specified with a minus sign (eg. "-Y"). |
| 321 |
> |
A negative axis may be specified with a minus sign (eg. "\-Y"). |
| 322 |
|
There is no default value for this variable, although the standard |
| 323 |
|
views assume Z is up if no other axis is specified. |
| 324 |
|
.TP |
| 405 |
|
values will be stored by |
| 406 |
|
.I rpict |
| 407 |
|
or |
| 408 |
< |
.I rview. |
| 408 |
> |
.I rvu. |
| 409 |
|
Although it is not required, an ambient file should be given whenever |
| 410 |
|
an interreflection calculation is expected. |
| 411 |
|
This will optimize successive runs and minimize artifacts. |
| 445 |
|
This file can later be accessed by |
| 446 |
|
.I rpict |
| 447 |
|
or |
| 448 |
< |
.I rview |
| 448 |
> |
.I rvu |
| 449 |
|
in subsequent manual runs using the at-sign ('@') file insert option. |
| 450 |
|
(Using an "OPTFILE" also reduces the length of the rendering |
| 451 |
|
command, which improves appearance and may even be necessary on some |
| 486 |
|
This variable may be used to specify additional options to |
| 487 |
|
.I rpict |
| 488 |
|
or |
| 489 |
< |
.I rview. |
| 489 |
> |
.I rvu. |
| 490 |
|
These options will appear after the options set automatically by |
| 491 |
|
.I rad, |
| 492 |
|
and thus will override the default values. |
| 526 |
|
.I rad |
| 527 |
|
would use without actually executing anything, we can invoke it thus: |
| 528 |
|
.IP "" .2i |
| 529 |
< |
rad -n -e sample.rif |
| 529 |
> |
rad \-n \-e sample.rif |
| 530 |
|
.PP |
| 531 |
|
This will print the variables we have given as well as default |
| 532 |
|
values |
| 543 |
|
Different option combinations have specific uses, ie: |
| 544 |
|
.IP "" .2i |
| 545 |
|
.br |
| 546 |
< |
rad -v 0 sample.rif OPT=samp.opt # build octree, put options in "sample.opt" |
| 546 |
> |
rad \-v 0 sample.rif OPT=samp.opt # build octree, put options in "sample.opt" |
| 547 |
|
.br |
| 548 |
< |
rad -n -e -s sample.rif > full.rif # make a complete rad file |
| 548 |
> |
rad \-n \-e \-s sample.rif > full.rif # make a complete rad file |
| 549 |
|
.br |
| 550 |
< |
rad -n sample.rif > script.sh # make a script of commands |
| 550 |
> |
rad \-n sample.rif > script.sh # make a script of commands |
| 551 |
|
.br |
| 552 |
< |
rad -V -v Zl -n -s sample.rif > plan.vf # make a plan view file |
| 552 |
> |
rad \-V \-v Zl \-n \-s sample.rif > plan.vf # make a plan view file |
| 553 |
|
.br |
| 554 |
< |
rad -t sample.rif # update files after minor change to input |
| 554 |
> |
rad \-t sample.rif # update files after minor change to input |
| 555 |
|
.br |
| 556 |
< |
rad -s sample.rif & # execute silently in the background |
| 556 |
> |
rad \-s sample.rif & # execute silently in the background |
| 557 |
|
.PP |
| 558 |
|
If we decide that the default values |
| 559 |
|
.I rad |
| 565 |
|
DET= low # default was medium - our space is almost empty |
| 566 |
|
PEN= True # we want to see soft shadows from our window |
| 567 |
|
VAR= hi # daylight can result in fairly harsh lighting |
| 568 |
< |
view= XYa -vv 120 # let's try a fisheye view |
| 568 |
> |
view= XYa \-vv 120 # let's try a fisheye view |
| 569 |
|
PICT= tutor # our picture name will be "tutor_XYa.pic" |
| 570 |
|
.fi |
| 571 |
|
.PP |
| 574 |
|
Now we can invoke |
| 575 |
|
.I rad |
| 576 |
|
to take a look at our scene interactively with |
| 577 |
< |
.I rview: |
| 577 |
> |
.I rvu: |
| 578 |
|
.IP "" .2i |
| 579 |
< |
rad -o x11 sample.rif |
| 579 |
> |
rad \-o x11 sample.rif |
| 580 |
|
.PP |
| 581 |
|
.I Rad |
| 582 |
|
will run |
| 583 |
|
.I oconv |
| 584 |
|
first to create the octree (assuming it doesn't |
| 585 |
|
already exist), then |
| 586 |
< |
.I rview |
| 586 |
> |
.I rvu |
| 587 |
|
with a long list of options. |
| 588 |
|
Let's say that from within |
| 589 |
< |
.I rview, |
| 589 |
> |
.I rvu, |
| 590 |
|
we wrote out the view files "view1.vp" and "view2.vp". |
| 591 |
|
We could add these to "sample.rif" like so: |
| 592 |
|
.IP "" .2i |
| 593 |
|
.nf |
| 594 |
< |
view= vw1 -vf view1.vp # Our first view |
| 595 |
< |
view= vw2 -vf view2.vp # Our second view |
| 594 |
> |
view= vw1 \-vf view1.vp # Our first view |
| 595 |
> |
view= vw2 \-vf view2.vp # Our second view |
| 596 |
|
RESOLUTION= 1024 # Let's go for a higher resolution result |
| 597 |
|
.fi |
| 598 |
|
.PP |
| 599 |
|
To start |
| 600 |
< |
.I rview |
| 600 |
> |
.I rvu |
| 601 |
|
again using vw2 instead of the default, we use: |
| 602 |
|
.IP "" .2i |
| 603 |
< |
rad -o x11 -v vw2 sample.rif |
| 603 |
> |
rad \-o x11 \-v vw2 sample.rif |
| 604 |
|
.PP |
| 605 |
|
Once we are happy with the variable settings in our file, we can run |
| 606 |
|
.I rad |
| 653 |
|
.SH "SEE ALSO" |
| 654 |
|
glrad(1), make(1), mkillum(1), objview(1), oconv(1), |
| 655 |
|
pfilt(1), raddepend(1), ranimate(1), |
| 656 |
< |
rholo(1), rpict(1), rtrace(1), rview(1), touch(1), vgaimage(1), ximage(1) |
| 656 |
> |
rholo(1), rpict(1), rtrace(1), rvu(1), touch(1), vgaimage(1), ximage(1) |
