.TH ctmconv 1
.SH NAME
.B ctmconv
- file format converter for 3D models
.SH SYNOPSIS
.B ctmconv
.I infile outfile [options]
.SH DESCRIPTION
.B ctmconv
is a 3D file converter that can convert 3D model files to and from several
different formats.
.PP
The file
.I infile
is loaded, and then saved as
.I outfile
in the target file format.
.PP
The input and output file formats are determined from the file endings. 
.SH OPTIONS
The following options are available:
.TP 16
.B --scale arg
Scale the mesh by a scalar factor.
.TP
.B --upaxis arg
Set up axis (X, Y, Z, -X, -Y, -Z). If != Z, the mesh will be flipped.
.TP
.B --flip
Flip triangle orientation.
.TP
.B --calc-normals
If the source file does not contain any normals, calculate them.
.TP
.B --no-normals
Do not export normals.
.TP
.B --no-texcoords
Do not export texture coordinates.
.TP
.B --no-colors
Do not export vertex colors.
.TP
.B --comment arg
Set the file comment (default is to use the comment from the input file, if
any).
.TP
.B --texfile arg
Set the texture file name reference for the texture (default is to use the
texture file name reference from the input file, if any).
.PP
When exporting an OpenCTM file, the following options are also
available:
.TP 16
.B --method arg
Select compression method (RAW, MG1, MG2).
.TP
.B --level arg
Set the compression level (0 - 9).
.TP
.B --vprec arg
Set vertex precision (only for MG2).
.TP
.B --vprecrel arg
Set vertex precision, relative method (only for MG2).
.TP
.B --nprec arg
Set normal precision (only for MG2).
.TP
.B --tprec arg
Set texture map precision (only for MG2).
.TP
.B --cprec arg
Set color precision (only for MG2).
.SH FILE FORMATS
The following 3D model file formats are supported:
OpenCTM (.ctm),
Stanford triangle format (.ply),
Stereolitography (.stl),
3D Studio (.3ds),
COLLADA 1.4/1.5 (.dae),
Wavefront geometry file (.obj),
LightWave object (.lwo),
Geomview object file format (.off),
VRML 2.0 - export only (.wrl).
.SH AVAILABILITY
.B ctmconv
is designed to be portable, and is available for several different systems,
including (but not limited to): Windows, Mac OS X (10.3+), Linux and
OpenSolaris.
.SH SEE ALSO
ctmviewer(1)