| 1 |
greg |
1.6 |
.\" RCSid "$Id: vwright.1,v 1.5 2007/09/04 17:36:41 greg Exp $"
|
| 2 |
greg |
1.1 |
.TH VWRIGHT 1 8/29/96 RADIANCE
|
| 3 |
|
|
.SH NAME
|
| 4 |
|
|
vwright - normalize a RADIANCE view, shift it to the right
|
| 5 |
|
|
.SH SYNOPSIS
|
| 6 |
|
|
.B vwright
|
| 7 |
|
|
.B distance
|
| 8 |
|
|
.br
|
| 9 |
|
|
.B vwright
|
| 10 |
|
|
.B name
|
| 11 |
|
|
.SH DESCRIPTION
|
| 12 |
|
|
.I Vwright
|
| 13 |
|
|
shifts a RADIANCE view from a picture or view file given on the standard input
|
| 14 |
|
|
the specified distance to the right, putting out a complete set of
|
| 15 |
|
|
view parameters in a single line on the standard output.
|
| 16 |
|
|
This utility is most often used to compute a right-eyed view from
|
| 17 |
|
|
a left-eye view for stereo imaging.
|
| 18 |
|
|
.PP
|
| 19 |
|
|
The
|
| 20 |
|
|
.I distance
|
| 21 |
|
|
given is in world coordinate units.
|
| 22 |
|
|
A negative value indicates a shift to the left rather than the
|
| 23 |
|
|
right.
|
| 24 |
|
|
.PP
|
| 25 |
|
|
The second form substitutes a name prefix in place of the shift
|
| 26 |
|
|
distance, and produces constant assignments on the standard output
|
| 27 |
|
|
suitable for passing directly to
|
| 28 |
|
|
.I rcalc(1).
|
| 29 |
|
|
For a given prefix
|
| 30 |
|
|
.I N,
|
| 31 |
|
|
the constant names are as follows:
|
| 32 |
|
|
.sp
|
| 33 |
|
|
.nf
|
| 34 |
greg |
1.6 |
Nt: view type ('v'==1,'l'==2,'a'==3,'h'==4,'c'==5,'s'==6)
|
| 35 |
greg |
1.1 |
Npx: view point x value
|
| 36 |
|
|
Npy: view point y value
|
| 37 |
|
|
Npz: view point z value
|
| 38 |
|
|
Ndx: view direction x value (normalized)
|
| 39 |
|
|
Ndy: view direction y value (normalized)
|
| 40 |
|
|
Ndz: view direction z value (normalized)
|
| 41 |
greg |
1.4 |
Nd: view focal distance
|
| 42 |
greg |
1.1 |
Nux: view up vector x value (normalized)
|
| 43 |
|
|
Nuy: view up vector y value (normalized)
|
| 44 |
|
|
Nuz: view up vector z value (normalized)
|
| 45 |
|
|
Nh: view horizontal size
|
| 46 |
|
|
Nv: view vertical size
|
| 47 |
|
|
Ns: view shift
|
| 48 |
|
|
Nl: view lift
|
| 49 |
|
|
No: view fore clipping distance
|
| 50 |
|
|
Na: view aft clipping distance
|
| 51 |
|
|
Nhx: derived horizontal image vector x value (normalized)
|
| 52 |
|
|
Nhy: derived horizontal image vector y value (normalized)
|
| 53 |
|
|
Nhz: derived horizontal image vector z value (normalized)
|
| 54 |
|
|
Nhn: derived horizontal image vector multiplier
|
| 55 |
|
|
Nvx: derived vertical image vector x value (normalized)
|
| 56 |
|
|
Nvy: derived vertical image vector y value (normalized)
|
| 57 |
|
|
Nvz: derived vertical image vector z value (normalized)
|
| 58 |
|
|
Nvn: derived vertical image vector multiplier
|
| 59 |
|
|
.fi
|
| 60 |
|
|
.SH EXAMPLES
|
| 61 |
|
|
To start
|
| 62 |
|
|
.I rpict(1)
|
| 63 |
|
|
on a view .06 meters left of the view in the file "right.vf":
|
| 64 |
|
|
.IP "" .2i
|
| 65 |
|
|
rpict `vwright -.06 < right.vf` scene.oct > right.pic &
|
| 66 |
|
|
.PP
|
| 67 |
|
|
To move the
|
| 68 |
|
|
.I rad(1)
|
| 69 |
|
|
view named "left" 2.5 inches to the right
|
| 70 |
|
|
and render from there:
|
| 71 |
|
|
.IP "" .2i
|
| 72 |
greg |
1.5 |
rad \-v "right `rad \-n \-s \-V \-v left examp.rif | vwright 2.5`" examp.rif &
|
| 73 |
greg |
1.1 |
.PP
|
| 74 |
|
|
To pass a view to
|
| 75 |
|
|
.I rcalc
|
| 76 |
|
|
for conversion to some other view:
|
| 77 |
|
|
.IP "" .2i
|
| 78 |
greg |
1.5 |
rcalc \-n \-e `vwright orig < orig.vf` \-f viewmod.cal \-o view.fmt > new.vf
|
| 79 |
greg |
1.1 |
.SH AUTHOR
|
| 80 |
|
|
Greg Ward
|
| 81 |
|
|
.SH "SEE ALSO"
|
| 82 |
greg |
1.3 |
pdfblur(1), rad(1), rcalc(1), rpict(1), rvu(1)
|
