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<h1 id="Additional-map-compiler-features">Additional map compiler features<a href="#Additional-map-compiler-features" class="wiki-anchor">&para;</a></h1>
<p>The following features for use by mappers have been added in NetRadiant and thus are not documented elsewhere:</p>
<h2 id="Floodlighting">Floodlighting<a href="#Floodlighting" class="wiki-anchor">&para;</a></h2>
<p><div style="float:right"><img src="floodlight.jpg" alt="" /></div></p>
<p>A very quick and dirty way to light a map is adding the following key to <code>worldspawn</code>:</p>
<pre>
"_floodlight" "240 240 255 1024 128 1"
</pre><br />The parameters work as follow: the first three numbers select the color of the lighting. The fourth number sets a distance to trace, and the fifth number sets the intensity of the floodlight.
<p>This lighting is somewhat similar to <code>-dirty</code>, combined with use of the <code>ambient</code> key in <code>worldspawn</code>.</p>
<p>This feature was contributed by the Urban Terror team.</p>
<h2 id="Lightmap-exposure">Lightmap exposure<a href="#Lightmap-exposure" class="wiki-anchor">&para;</a></h2>
<p><div style="float:right"><img src="exposure.jpg" alt="" /></div></p>
<p>The q3map2 light compile parameter <code>-exposure</code> changes the handling of overbright pixels to look more realistic. Try values like <code>-exposure 200</code>! The higher the value, the darker the result gets.</p>
<p>It is most interesting if you intentionally put colored lights of a far too high light value in your map.</p>
<p>This feature was contributed by the Urban Terror team.</p>
<h2 class="clearbefore" id="dotProductScale">dotProductScale<a href="#dotProductScale" class="wiki-anchor">&para;</a></h2>
<table>
<tr>
<td> <img src="dotproduct-small.jpg" alt="" /> </td>
<td> <img src="/attachments/download/15" alt="" /> </td>
<td> <img src="/attachments/download/16" alt="" /> </td>
<td> <img src="/attachments/download/17" alt="" /> </td>
</tr>
<tr>
<td> dotProduct </td>
<td> dotProduct2 </td>
<td> dotProductScale </td>
<td> dotProduct2scale </td>
</tr>
</table>
<p>The following shader parameters are added for use with terrain blending:</p>
<pre>
q3map_alphagen dotProduct2scale ( X Y Z MIN MAX )
</pre>
<p>As with <code>dotProduct2</code>, <code>X Y Z</code> denote the normal on the plane to use for dotProduct terrain blending. The values <code>MIN</code> and <code>MAX</code> specify a range of squared cosine values, so that <code>MIN</code> is mapped to alpha value 0, <code>MAX</code> is mapped to alpha value 1, and everything in between is mapped linearily.</p>
<p>If you prefer working with angles, you can set <code>MIN</code> to the squared cosine of the most steep angle of the blending, and <code>MAX</code> to the squared cosine of the most flat angle of the blending. Example:</p>
<pre>
q3map_alphagen dotProduct2scale ( 0 0 1 0.250 0.933 )
</pre>
<p>will set alpha value 0 for anything steeper than 60 degrees, and alpha value 1 for anything more flat than 15 degrees.</p>
<p>The same extension to <code>dotProduct</code> is called <code>dotProductScale</code>. Note that the <code>MIN</code> and <code>MAX</code> values are not squared there. You get a different curve with the same min/max angles by writing:</p>
<pre>
q3map_alphagen dotProductScale ( 0 0 1 0.500 0.966 )
</pre>
<h2 id="Minimum-sample-size">Minimum sample size<a href="#Minimum-sample-size" class="wiki-anchor">&para;</a></h2>
<p>The compiler option <code>-minsamplesize</code> in the BSP stage enforces a given minimum<br />sample size, even if shaders or <code>func_groups</code> set a lightmap scale. This allows<br />higher quality compiles of existing maps that use these features without having<br />to create extraordinarily large amounts of lightmaps, especially when using<br />external lightmaps.</p>
<h2 id="Converting-to-ASE-prefabs">Converting to ASE prefabs<a href="#Converting-to-ASE-prefabs" class="wiki-anchor">&para;</a></h2>
<p>Use <code>-convert -format ase -shadersasbitmap</code> for this purpose. That way, the<br />created ASE files work as prefabs, and thus contain shader names, instead of<br />texture file names. In a model editor, however, these ASE files will not show<br />up with textures, as modelling software does not support Q3 shaders.</p>
<h2 id="Zero-effort-cel-shading">Zero-effort cel shading<a href="#Zero-effort-cel-shading" class="wiki-anchor">&para;</a></h2>
<p>If you already have a cel shader (in Nexuiz, cel/black_ink), you can compile<br />the map using it easily by adding the option <code>-celshader cel/black_ink</code> to the<br />BSP stage.</p>
<h2 id="MiniMap-generator">MiniMap generator<a href="#MiniMap-generator" class="wiki-anchor">&para;</a></h2>
<p><div style="float:right"><img src="/attachments/download/18" alt="" /></div></p>
This version of the map compiler can generate minimaps as used by Nexuiz.<br />The specs of the minimap's texture mapping are:
<ul>
<li>Let M be the rectangle of the world's mins/maxs coordinates.</li>
<li>If <code>keepaspect</code> is set: let S be the smallest square completely covering M whose center matches the one of M. Otherwise, let S be M.</li>
<li>Let S' be S scaled by factor <code>1/(1-2*border)</code> around the center of S.</li>
<li>The "mins" corner of S' corresponds to the top left corner of the image.</li>
<li>The "maxs" corner of S' corresponds to the bottom right corner of the image.</li>
</ul>
</div>
<div class="attachments">
<p><a href="/attachments/12/floodlight.jpg" class="icon icon-attachment">floodlight.jpg</a>
<span class="size">(7 КБ)</span>
<span class="author">divVerent, Вт, 05 мая 2009, 13:26:00 -0400</span>
</p>
<p><a href="/attachments/13/exposure.jpg" class="icon icon-attachment">exposure.jpg</a>
<span class="size">(27.8 КБ)</span>
<span class="author">divVerent, Вт, 05 мая 2009, 13:26:31 -0400</span>
</p>
<p><a href="/attachments/14/dotproduct-small.jpg" class="icon icon-attachment">dotproduct-small.jpg</a>
<span class="size">(25.9 КБ)</span>
<span class="author">divVerent, Вт, 05 мая 2009, 13:29:00 -0400</span>
</p>
<p><a href="/attachments/15/dotproduct2-small.jpg" class="icon icon-attachment">dotproduct2-small.jpg</a>
<span class="size">(24.2 КБ)</span>
<span class="author">divVerent, Вт, 05 мая 2009, 13:29:36 -0400</span>
</p>
<p><a href="/attachments/16/dotproductscale-small.jpg" class="icon icon-attachment">dotproductscale-small.jpg</a>
<span class="size">(23.3 КБ)</span>
<span class="author">divVerent, Вт, 05 мая 2009, 13:29:54 -0400</span>
</p>
<p><a href="/attachments/17/dotproduct2scale-small.jpg" class="icon icon-attachment">dotproduct2scale-small.jpg</a>
<span class="size">(22.8 КБ)</span>
<span class="author">divVerent, Вт, 05 мая 2009, 13:30:08 -0400</span>
</p>
<p><a href="/attachments/18/minimap.jpg" class="icon icon-attachment">minimap.jpg</a>
<span class="size">(6.4 КБ)</span>
<span class="author">divVerent, Вт, 05 мая 2009, 13:30:30 -0400</span>
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