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+/** @file dox_cmd.h
+ *  @brief General documentation for assimp_cmd
+ */
+
+
+//----------------------------------------------------------------------------------------------
+// ASSIMP CMD MAINPAGE
+/**
+@mainpage ASSIMP Command-line tools
+
+<img src="dragonsplash.png"></img>
+
+@section intro Introduction
+
+This document describes the usage of assimp's command line tools.
+This is *not* the SDK reference and programming-related stuff is not covered here.
+<br><br>
+<b>NOTE</b>: For simplicity, the following sections are written with Windows in mind. However
+it's not different for Linux/Mac at all, except there's probably no assimp.exe ...
+
+@section basic_use Basic use
+
+Open a command prompt and navigate to the directory where assimp.exe resides. The basic command line is:
+
+@code
+assimp [command] [parameters]
+@endcode
+
+The following commands are available:
+
+<table border="1">
+
+  <tr>
+    <td><b>@link version version @endlink</b></td>
+    <td>Retrieve the current version of assimp</td>
+  </tr>
+  <tr>
+    <td><b>@link help help @endlink</b></td>
+    <td>Get a list of all commands (yes, it's this list ...)</td>
+  </tr>
+   <tr>
+    <td><b>@link dump dump @endlink</b></td>
+    <td>Generate a human-readable text dump of a model</td>
+  </tr>
+   <tr>
+    <td><b>@link extract extract @endlink</b></td>
+    <td>Extract an embedded texture image</td>
+  </tr>
+   <tr>
+    <td><b>@link iinfo info @endlink</b></td>
+    <td>Load a model and print basic statistics</td>
+  </tr>
+   <tr>
+    <td><b>@link cmpdump cmpdump @endlink</b></td>
+    <td>Regression checking tool</td>
+  </tr>
+</table>
+
+If you use assimp's command line frequently, consider adding assimp to your PATH
+environment.
+
+ */
+
+
+/**
+@page version 'version'-Command
+
+Display the version/revision of Assimp used.
+ */
+
+/**
+@page help 'help'-Command
+
+Display a really helpful text.
+ */
+
+//----------------------------------------------------------------------------------------------
+// ASSIMP INFO
+
+/**
+@page iinfo 'info'-Command
+
+Load a model file and print basic statistics. Full postprocessing is applied unless the <tt>-r</tt> switch is specified. Sample output (<tt>assimp info ./test/models/3DS/mar_rifle.3ds</tt>):
+
+@verbatim
+Launching model import ...           OK
+Validating postprocessing flags ...  OK
+Importing file ...                   OK
+   import took approx. 0.02400 seconds
+
+Memory consumption: 69444 B
+Nodes:              2
+Maximum depth       2
+Meshes:             1
+Animations:         0
+Textures (embed.):  0
+Materials:          1
+Cameras:            0
+Lights:             0
+Vertices:           843
+Faces:              572
+Bones:              0
+Animation Channels: 0
+Primitive Types:    triangles
+Average faces/mesh  572
+Average verts/mesh  843
+Minimum point      (-3.522588 -11.573204 -40.340359)
+Maximum point      (3.522622 30.196556 75.941292)
+Center point       (0.000017 9.311676 17.800467)
+
+Named Materials:
+    'mat1'
+
+Texture Refs:
+    'm_rifl.bmp'
+
+Node hierarchy:
+'<3DSRoot>', meshes: 0
+-- 'm_rifle', meshes: 1
+<--
+@endverbatim
+
+<h3>Syntax:</h3>
+
+@code
+assimp info file [-r]
+@endcode
+
+
+<h3>Parameters:</h3>
+
+<p>
+<tt>
+file<br></tt><br>
+Required. Input file.
+</p>
+<p>
+<tt>
+-r</tt><br>
+Optional. Don't perform any postprocessing. The long form of this parameter is <tt>--raw</tt>.
+</p>
+
+*/
+//----------------------------------------------------------------------------------------------
+// ASSIMP CMPDUMP
+
+/**
+@page cmpdump 'cmpdump'-Command
+
+<b>Used for Assimp's internal regression testing.</b> Compare two mini dumps (produced using <tt>assimp dump .. -b -s</tt>) and
+report any differences. In the regression test suite, this facility is used to build a database of
+'known-to-be-fine' mini dumps, which are regularly compared against current results to detect regressions.
+
+<h3>Syntax:</h3>
+
+@code
+assimp cmpdmp actual expected
+@endcode
+
+
+<h3>Parameters:</h3>
+
+<p>
+<tt>
+actual<br></tt><br>
+Required. Mini dump now.
+</p>
+<p>
+<tt>
+expected<br></tt><br>
+Required. Archived dump from some point in the past.
+</p>
+
+*/
+
+
+//----------------------------------------------------------------------------------------------
+// ASSIMP DUMP
+
+/**
+@page dump 'dump'-Command
+
+Generate a text or binary dump of a model. This is the core component of Assimp's internal
+regression test suite but it could also be useful for other developers to quickly
+examine the contents of a model. Note that text dumps are not intended to be used as
+intermediate format, Assimp is not able to read them again, nor is the file format
+stable or well-defined. It may change with every revision without notice.
+Binary dumps (*.assbin) are backwards- and forwards-compatible.
+
+<h3>Syntax:</h3>
+
+@code
+assimp dump <model> [<out>] [-b] [-s] [common parameters]
+@endcode
+
+
+<h3>Parameters:</h3>
+
+<p>
+<tt>
+model<br></tt><br>
+Required. Relative or absolute path to the input model.
+</p>
+<p>
+<tt>
+out<br></tt><br>
+Optional. Relative or absolute path to write the output dump to. If it is omitted,
+the dump is written to <tt>&lt;model&gt;-dump.txt</tt>
+</p>
+
+<p>
+<tt>-b<br>
+</tt><br>
+Optional. If this switch is specified, the dump is written in binary format.
+The long form of this parameter is <tt>--binary</tt>.
+</p>
+
+<p>
+<tt>-s&lt;n&gt;<br>
+</tt><br>
+Optional. If this switch is specified, the dump is shortened to include only
+min/max values for all vertex components and animation channels. The resulting
+file is much smaller, but the original model can't be reconstructed from it. This is
+used by Assimp's regression test suite, comparing those minidumps provides
+a fast way to verify whether a loader works correctly or not.
+The long form of this parameter is <tt>--short</tt>.
+</p>
+
+<p>
+<tt>
+common parameters<br></tt><br>
+Optional. Import configuration & postprocessing.
+See the @link common common parameters page @endlink for more information.
+</p>
+
+<hr>
+
+<h3>Sample:</h3>
+
+@code
+assimp dump test.3ds test.txt -l -cfull
+assimp dump test.3ds test.txt -include-log -config=full
+@endcode
+
+Dumps 'test.3ds' to 'test.txt' after executing full post-processing on tehe imported data.
+The log output is included with the dump.
+
+
+@code
+assimp dump files\*.*
+assimp dump files\*.*
+@endcode
+
+Dumps all loadable model files in the 'files' subdir. The output dumps are named
+<tt><mode-file>-dump.txt</tt>. The log is not included.
+ */
+
+//----------------------------------------------------------------------------------------------
+// ASSIMP EXTRACT
+
+/**
+@page extract 'extract'-Command
+
+Extracts one or more embedded texture images from models.
+
+<h3>Syntax:</h3>
+
+@code
+assimp extract <model> [<out>] [-t<n>] [-f<fmt>] [-ba] [-s] [common parameters]
+@endcode
+
+
+<h3>Parameters:</h3>
+
+<p>
+<tt>
+model<br></tt><br>
+Required. Relative or absolute path to the input model.
+</p>
+<p>
+<tt>
+out<br></tt><br>
+Optional. Relative or absolute path to write the output images to. If the file name is
+omitted the output images are named <tt><model-filename></tt><br>
+The suffix <tt>_img&lt;n&gt;</tt> is appended to the file name if the -s switch is not specified
+(where <tt>&lt;n&gt;</tt> is the zero-based index of the texture in the model file).<br>
+
+The output file format is determined from the given file extension. Supported
+formats are BMP and TGA. If the file format can't be determined,
+the value specified with the -f switch is taken.
+<br>
+Format settings are ignored for compressed embedded textures. They're always
+written in their native file format (e.g. jpg).
+</p>
+
+<p>
+<tt>-t&lt;n&gt;<br>
+</tt><br>
+Optional. Specifies the (zero-based) index of the embedded texture to be extracted from
+the model. If this option is *not* specified all textures found are exported.
+The long form of this parameter is <tt>--texture=&lt;n&gt;</tt>.
+</p>
+
+<p>
+<tt>-ba&lt;n&gt;<br>
+</tt><br>
+Optional. Specifies whether output BMPs contain an alpha channel or not.
+The long form of this parameter is <tt>--bmp-with-alpha=&lt;n&gt;</tt>.
+</p>
+
+
+<p>
+<tt>-f&lt;n&gt;<br>
+</tt><br>
+Optional. Specifies the output file format. Supported
+formats are BMP and TGA. The default value is BMP (if a full output filename is
+specified, the output file format is taken from its extension, not from here).
+The long form of this parameter is <tt>--format=&lt;n&gt;</tt>.
+</p>
+
+<p>
+<tt>-s&lt;n&gt;<br>
+</tt><br>
+Optional. Prevents the tool from adding the <tt>_img&lt;n&gt;</tt> suffix to all filenames. This option
+must be specified together with -t to ensure that just one image is written.
+The long form of this parameter is <tt>--nosuffix</tt>.
+</p>
+
+<p>
+<tt>
+common parameters<br></tt><br>
+Optional. Import configuration & postprocessing. Most postprocessing-steps don't affect
+embedded texture images, configuring too much is probably senseless here.
+See the @link common common parameters page @endlink for more information.
+</p>
+
+<hr>
+
+<h3>Sample:</h3>
+
+@code
+assimp extract test.mdl test.bmp --texture=0 --validate-data-structure
+assimp extract test.mdl test.bmp -t=0 -vds
+@endcode
+
+Extracts the first embedded texture (if any) from test.mdl after validating the
+imported data structure and writes it to <tt>test_img0.bmp</tt>.
+
+
+@code
+assimp extract files\*.mdl *.bmp
+assimp extract files\*.mdl *.bmp
+@endcode
+
+Extracts all embedded textures from all loadable .mdl files in the 'files' subdirectory
+and writes them to bitmaps which are named <tt><model-file>_img<image-index>.bmp</tt>
+ */
+
+//----------------------------------------------------------------------------------------------
+// ASSIMP COMMON PARAMETERS
+/**
+@page common Common parameters
+
+The parameters described on this page are commonly used by almost every assimp command. They
+specify how the library will postprocess the imported data. This is done by several
+configurable pipeline stages, called 'post processing steps'. Below you can find a list
+of all supported steps along with short descriptions of what they're doing. <br><b>Programmers</b>:
+more information can be found in the <tt>aiPostProcess.h</tt> header.
+
+<table border="1">
+  <tr>
+    <th>Parameter</th>
+    <th>Long parameter</th>
+	<th>Description</th>
+  </tr>
+  <tr>
+    <td><tt>-ptv</tt></td>
+    <td><tt>--pretransform-vertices</tt></td>
+	<td>Move all vertices into worldspace and collapse the scene graph. Animation data is lost.
+	This is intended for applications which don't support scenegraph-oriented rendering.</td>
+  </tr>
+  <tr>
+    <td><tt>-gsn</tt></td>
+    <td><tt>--gen-smooth-normals</tt></td>
+	<td>Computes 'smooth' per-vertex normal vectors if necessary. Mutually exclusive with -gn</td>
+  </tr>
+  <tr>
+    <td><tt>-gn</tt></td>
+    <td><tt>--gen-normals</tt></td>
+	<td>Computes 'hard' per-face normal vectors if necessary. Mutually exclusive with -gsn</td>
+  </tr>
+  <tr>
+    <td><tt>-cts</tt></td>
+    <td><tt>--calc-tangent-space</tt></td>
+	<td>If one UV channel and normal vectors are given, compute tangents and bitangents</td>
+  </tr>
+  <tr>
+    <td><tt>-jiv</tt></td>
+    <td><tt>--join-identical-vertices</tt></td>
+	<td>Optimize the index buffer. If this flag is not specified all vertices are referenced once.</td>
+  </tr>
+  <tr>
+    <td><tt>-rrm</tt></td>
+    <td><tt>--remove-redundant-materials</tt></td>
+	<td>Remove redundant materials from the imported data.</td>
+  </tr>
+  <tr>
+    <td><tt>-fd</tt></td>
+    <td><tt>--find-degenerates</tt></td>
+	<td>Find and process degenerates primitives.</td>
+  </tr>
+  <tr>
+    <td><tt>-slm</tt></td>
+    <td><tt>--split-large-meshes</tt></td>
+	<td>Split large meshes over a specific threshold in smaller sub meshes. The default vertex & face limit is 1000000</td>
+  </tr>
+  <tr>
+    <td><tt>-lbw</tt></td>
+    <td><tt>--limit-bone-weights</tt></td>
+	<td>Limit the number of bones influencing a single vertex. The default limit is 4.</td>
+  </tr>
+  <tr>
+    <td><tt>-vds</tt></td>
+    <td><tt>--validate-data-structure</tt></td>
+	<td>Performs a full validation of the imported data structure. Recommended to avoid crashes if
+	an import plugin produces rubbish</td>
+  </tr>
+   <tr>
+    <td><tt>-icl</tt></td>
+    <td><tt>--improve-cache-locality</tt></td>
+	<td>Improve the cache locality of the vertex buffer by reordering the index buffer
+	to achieve a lower ACMR (average post-transform vertex cache miss ratio)</td>
+  </tr>
+  <tr>
+    <td><tt>-sbpt</tt></td>
+    <td><tt>--sort-by-ptype</tt></td>
+	<td>Splits meshes which consist of more than one kind of primitives (e.g. lines and triangles mixed up)
+	in 'clean' submeshes. </td>
+  </tr>
+  <tr>
+    <td><tt>-lh</tt></td>
+    <td><tt>--convert-to-lh</tt></td>
+	<td>Converts the imported data to left-handed coordinate space</td>
+  </tr>
+   <tr>
+    <td><tt>-fuv</tt></td>
+    <td><tt>--flip-uv</tt></td>
+	<td>Flip UV coordinates from upper-left origin to lower-left origin</td>
+  </tr>
+   <tr>
+    <td><tt>-fwo</tt></td>
+    <td><tt>--flip-winding-order</tt></td>
+	<td>Flip face winding order from CCW to CW</td>
+  </tr>
+  <tr>
+    <td><tt>-ett</tt></td>
+    <td><tt>--evaluate-texture-transform</tt></td>
+	<td>Evaluate per-texture UV transformations (e.g scaling, offset) and build pretransformed UV channels</td>
+  </tr>
+   <tr>
+    <td><tt>-guv</tt></td>
+    <td><tt>--gen-uvcoords</tt></td>
+	<td>Replace abstract mapping descriptions, such as 'spherical' or 'cylindrical' with proper UV channels</td>
+  </tr>
+    <tr>
+    <td><tt>-fixn</tt></td>
+    <td><tt>--fix-normals</tt></td>
+	<td>Run a heuristic algorithm to detect meshes with wrong face winding order/normals. </td>
+  </tr>
+   <tr>
+    <td><tt>-tri</tt></td>
+    <td><tt>--triangulate</tt></td>
+	<td>Triangulate poylgons with 4 and more points. Lines, points and triangles are not affected. </td>
+  </tr>
+   <tr>
+    <td><tt>-fi</tt></td>
+    <td><tt>--find-instances</tt></td>
+	<td>Search the data structure for instanced meshes and replace them by references. This can
+	reduce vertex/face counts but the postprocessing-step takes some time.</td>
+  </tr>
+  <tr>
+    <td><tt>-og</tt></td>
+    <td><tt>--optimize-graph</tt></td>
+	<td>Simplify and optimize the scenegraph. Use it with care, all hierarchy information could be lost.
+	Animations remain untouched. </td>
+  </tr>
+  <tr>
+    <td><tt>-om</tt></td>
+    <td><tt>--optimize-meshes</tt></td>
+	<td>Optimize mesh usage. Meshes are merged, if possible. Very effective in combination with <tt>--optimize-graph</tt></td>
+  </tr>
+  <tr>
+    <td><tt>-tuv</tt></td>
+    <td><tt>--transform-uv-coords</tt></td>
+    <td>Will transform uv-coordinates if possible.</td>
+  </tr>
+  <tr>
+    <td><tt>-fid</tt></td>
+    <td><tt>--find-invalid-data</tt></td>
+    <td>Will look for invalid data in the imported model structure.</td>
+  </tr>
+  <tr>
+    <td><tt>-db</tt></td>
+    <td><tt>--debone</tt></td>
+    <td>Removes nearly losslessly or according to a configured threshold bones from the model.</td>
+  </tr>
+  <tr>
+    <td><tt>-sbc</tt></td>
+    <td><tt>--split-by-bone-count</tt></td>
+    <td>Split meshes with too many bones. Necessary for our (limited) hardware skinning shader.</td>
+  </tr>
+</table>
+
+For convenience some default postprocessing configurations are provided.
+The corresponding command line parameter is <tt>-c&lt;name&gt;</tt> (or <tt>--config=&lt;name&gt;</tt>).
+
+<table border="1">
+
+  <tr>
+    <th>Name</th>
+    <th>Description</th>
+	<th>List of steps executed</th>
+  </tr>
+  <tr>
+    <td>fast</td>
+    <td>Fast post processing config, performs some essential optimizations and computes tangents</td>
+	<td><tt>-cts, -gn, -jiv, -tri, -guv, -sbpt</tt></td>
+  </tr>
+    <tr>
+    <td>default</td>
+    <td>Balanced post processing config; performs most optimizations</td>
+	<td><tt>-cts, -gsn, -jiv, -icl, -lbw, -rrm, -slm, -tri, -guv, -sbpt, -fd, -fiv</tt></td>
+  </tr>
+    <tr>
+    <td>full</td>
+    <td>Full post processing. May take a while but results in best output quality for most purposes</td>
+	<td><tt>-cts, -gsn, -jiv, -icl, -lbw, -rrm, -slm, -tri, -guv, -sbpt, -fd, -fiv, -fi, -vds -om</tt></td>
+  </tr>
+ </table>
+
+ The <tt>-tuv, -ptv, -og</tt> flags always need to be enabled manually.
+
+There are also some common flags to customize Assimp's logging behaviour:
+
+<table border="1">
+
+  <tr>
+    <th>Name</th>
+    <th>Description</th>
+  </tr>
+  <tr>
+    <td><tt>-l</tt> or <tt>--show-log</tt></td>
+    <td>Show log file on console window (stderr)</td>
+  </tr>
+    <tr>
+    <td><tt>-lo&lt;file&gt;</tt> or <tt>--log-out=&lt;file&gt;</tt></td>
+    <td>Streams the log to &lt;file&gt;</td>
+  </tr>
+    <tr>
+    <td><tt>-v</tt> or <tt>--verbose</tt></td>
+    <td>Enables verbose logging. Debug messages will be produced too. This might
+	decrease loading performance and result in *very* long logs ... use with caution if you experience strange issues.</td>
+  </tr>
+ </table>
+ */