The converter is a command line utility that will convert from COLLADA
to the form that the sample JavaScript scene loader (in
samples/o3djs/serialization.js) can read.

It is able to read COLLADA files as either DAE text files (and
associated asset files in subdirectories), or as part of a ZIP archive
(or KMZ file).  It outputs a gzip-compressed tar archive (.tgz) which
contains a JSON file and any associated assets (textures, shaders,
etc.) from the source COLLADA model.  By default we don't use the .tgz
extension, as it can cause problems with some webservers; we put .o3dtgz on
instead.

In order to run the converter on Windows, you need the DirectX SDK installed.
Installing it requires administrator privileges.  You can get it here:
http://msdn.microsoft.com/en-us/library/bb219737(VS.85).aspx.

The command line arguments are as follows:

Usage: o3dConverter.exe [--base-path=<path>]
                        [--up-axis=x,y,z]
                        [--no-condition]
                        [--pretty-print]
                        [--sharp-edge-threshold=<threshold>]
                        [--sharp-edge-color=r,g,b]
                        <infile.dae> [ <outfile> ]

--base-path=<path>: This specifies the path elements to remove from
                    the beginning of the filenames placed into the
                    .o3dtgz file (to avoid including sensitive paths in
                    the .o3dtgz file).

--up-axis=x,y,z: This specifies the up-axis for the resulting model,
                 if you wish it to be different from the axis in the
                 COLLADA file.

--pretty-print: This simply formats the JSON file in the resulting
                .o3dtgz file to be human readable, instead of compacted
                into one line.

--no-condition: This will prevent conditioning of the shaders from
                COLLADA form to the form expected by O3D.  [This is
                useful only for pre-release data conditioned before
                the converter existed.]

--sharp-edge-threshold=<threshold>: Adds edges with normal angle
                                    larger than <threshold>.

--sharp-edge-color=r,g,b: Specify color of the additional edges,
                          (value 0 to 1).Default value is 1,0,0.

<infile.dae|infile.zip|infile.kmz>: This is the input file in one of
                                    ZIP, KMZ, or DAE formats.  The
                                    DAE format expects to find assets
                                    relative to the .dae file.

<outfile>: An optional argument giving the name of the
           gzip-compressed tar archive output file.  By default
           this has the same basename as the input file, and has the extension
           .o3dtgz.