.ad l
.nh
.TH STEREO3D 1 "19 Dec 2010" "Raster3D"
.SH NAME

stereo3d - render a Raster3D scene as a side-by-side stereo pair

.SH SYNOPSIS

   stereo3d [options] [-png  [outfile.png ]] < infile.r3d > outfile.png 
   stereo3d [options]  -tiff [outfile.tiff]  < infile.r3d > outfile.tiff

.PP
\fIstereo3d\fP is a shell script that renders a single Raster3D input 
file as a side-by-side stereo pair. 

stereo3d uses the Raster3D utilities \fInormal3d\fP and \fIrender\fP, 
and the ImageMagick image processing package. 
Intermediate scratch files are created in directory TMPDIR, if defined,
otherwise in /usr/tmp.

The right eye and left eye views are separately rendered,
optionally given black borders, 
and merged to form a single side-by-side stereo pair.

.PP
Input is from stdin, output is to stdout unless a filename is given
as an argument to the -png or -tiff options.

.PP
.SH EXAMPLES

If the following line would render a single image: 

 	render -tiff single.tiff < input.r3d

then the following line would render the same scene as a 
stereo pair instead: 

 	stereo3d -tiff stereo.tiff < input.r3d

.PP
.SH OPTIONS

The options below are specific to stereo3d.  All other options, 
e.g. -labels or -gamma 1.2 are passed through to the render program. 

.B "-angsep"
.PP
By default the stereo effect is generated by a shear operation.
The \fI-angsep\fP option creates stereo by using angular separation instead.
Neither option is perfect: the default handles shadows badly,
and the -angsep option blurs specular highlights.

.B "-border"
.PP
By default the left and right images are placed next to each other with
no intervening space and no frame around them.  The \fI-border\fP option
requests a 4 pixel wide black border separating and surrounding the 
component images.

.SH SOURCE
 
.B web URL:
 	http://www.bmsc.washington.edu/raster3d/raster3d.html
 
.B contact:		
 	Ethan A Merritt
 	University of Washington, Seattle WA 98195
 	merritt@u.washington.edu



.SH SEE ALSO
normal3d(l), render(l), raster3d(l)
.PP
.SH AUTHORS

 Ethan A Merritt.