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<h4 class="subsubsection"> 3.1.4.9 Debugging Commands </h4>
<p>These commands are primarily to aid in debugging the engine, and may or may not
work, depending on the current state of the engine code.
</p>
<dl compact="compact">
<dt> <code>bugplug</code></dt>
<dd><p>Load bugplug plugin. This is documented elsewhere.
</p>
</dd>
<dt> <code>cls</code></dt>
<dd><p>Clear the text from the console.
</p>
</dd>
<dt> <code>cmessage str</code></dt>
<dd><p>Print a message to the console at <samp>‘NOTIFY’</samp> priority. Useful in scripts.
</p>
</dd>
<dt> <code>dmessage str</code></dt>
<dd><p>Print a message to the console at <samp>‘DEBUG’</samp> priority. Useful in scripts.
</p>
</dd>
<dt> <code>dnl</code></dt>
<dd><p>Print a newline to the console at <samp>‘DEBUG’</samp> priority. Useful in scripts.
</p>
</dd>
<dt> <code>db_boxshow boolean</code></dt>
<dd><p>Sets or display <samp>‘do_show_debug_boxes’</samp>.
</p>
</dd>
<dt> <code>db_boxcam1</code></dt>
<dd><p>Set <samp>‘db_box1’</samp> to current position.
</p>
</dd>
<dt> <code>db_boxcam2</code></dt>
<dd><p>Set <samp>‘db_box2’</samp> to current position.
</p>
</dd>
<dt> <code>db_boxsize1</code></dt>
<dd><p>Set or show size of <samp>‘db_box1’</samp>.
</p>
</dd>
<dt> <code>db_boxsize2</code></dt>
<dd><p>Set or show size of <samp>‘db_box2’</samp>.
</p>
</dd>
<dt> <code>debug0, debug1, debug2</code></dt>
<dd><p>These commands do not do anything, but serve as placeholders to put in your own
debugging code.
</p>
</dd>
<dt> <code>lod Value</code></dt>
<dd><p>Change the global level-of-detail (<em>LOD</em>) setting for sprite. 1 is full
detail, 0 is no detail at all (i.e. you will not see the sprite). -1 is
disabled. Otherwise, any value between 0 and 1 is legal. Default is 1.
</p>
</dd>
<dt> <code>portals Boolean</code></dt>
<dd><p>Enable/disable drawing through portals. If this is off, a portal will just
draw as the default texture on the polygon
</p>
</dd>
<dt> <code>zbuf Boolean</code></dt>
<dd><p>For debugging. When enabled this will show an alternate view where far away
objects are rendered in another color. In other words: it tests the Z buffer.
It works best in 16-bit mode.
</p>
</dd>
<dt> <code>palette Boolean</code></dt>
<dd><p>This only has effect when a palette is used, not in a True Colour display.
</p>
</dd>
<dt> <code>farplane Value</code></dt>
<dd><p>Set far plane distance, or 0 to disable Y.
</p>
</dd>
<dt> <code>plugins</code></dt>
<dd><p>List loaded plugins.
</p>
</dd>
<dt> <code>conflist n</code></dt>
<dd><p>List options for plugin <var>n</var>.
</p>
</dd>
<dt> <code>confset n,s1,s2</code></dt>
<dd><p>Set option s1 to s2 for plugin <var>n</var>.
</p></dd>
</dl>
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