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you are here: <a onclick="link('../index2.html')">Index</a> > <a onclick="link('noise.html')">9. Noise
generator</a> > <a onclick="link('noise_setType.html')">9.2. Choosing a noise type</a><br>
<a class="prev" onclick="link('noise_init.html')">9.1. Creating a noise generator</a> | <a class="next"
onclick="link('noise_get.html')">9.3. Getting flat noise</a>
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<h1>9.2. Choosing a noise type</h1>
<a name="0"></a>
<h3>Choosing a noise type</h3>
<p>Use this function to define the default algorithm used by the noise functions. <br /> The default algorithm is
simplex. It's much faster than Perlin, especially in 4 dimensions. It has a better contrast too.<br /> </p>
<div class="code">
<p class="cpp"><span class="code-keyword">void</span> TCODNoise<span class="code-symbol">::</span>setType<span
class="code-symbol">(</span><span class="code-tcod">TCOD_noise_type_t</span> type<span
class="code-symbol">)</span></p>
<p class="c"><span class="code-keyword">void</span> TCOD_noise_set_type<span class="code-symbol">(</span><span
class="code-tcod">TCOD_noise_t</span> noise<span class="code-symbol">,</span><span class="code-tcod">
TCOD_noise_type_t</span> type<span class="code-symbol">)</span></p>
<p class="py">noise_set_type<span class="code-symbol">(</span>noise<span class="code-symbol">,</span> type<span
class="code-symbol">)</span></p>
</div>
<table class="param">
<tbody>
<tr>
<th>Parameter</th>
<th>Description</th>
</tr>
<tr class="hilite">
<td>noise</td>
<td>In the C version, the generator handler, returned by the initialization function.<br /> </td>
</tr>
<tr>
<td>type</td>
<td>The algorithm to use, either TCOD_NOISE_SIMPLEX, TCOD_NOISE_PERLIN or TCOD_NOISE_WAVELET.<br /> </td>
</tr>
</tbody>
</table>
<h6>Example:</h6>
<div class="code">
<p class="cpp">TCODNoise<span class="code-symbol"> *</span> noise1d<span class="code-symbol"> =</span><span
class="code-keyword"> new</span> TCODNoise<span class="code-symbol">(</span><span
class="code-value">1</span><span class="code-symbol">)</span><span
class="code-symbol">;</span><br />noise1d<span class="code-symbol">-></span>setType<span
class="code-symbol">(</span><span class="code-tcod">TCOD_NOISE_PERLIN</span><span
class="code-symbol">)</span><span class="code-symbol">;</span></p>
<p class="c"><span class="code-tcod">TCOD_noise_t</span> noise1d<span class="code-symbol"> =</span>
TCOD_noise_new<span class="code-symbol">(</span><span class="code-value">1</span><span
class="code-symbol">,</span><span class="code-tcod">TCOD_NOISE_DEFAULT_HURST</span><span
class="code-symbol">,</span><span class="code-tcod"> TCOD_NOISE_DEFAULT_LACUNARITY</span><span
class="code-symbol">,</span><span class="code-tcod">NULL</span><span class="code-symbol">)</span><span
class="code-symbol">;</span><br />TCOD_noise_set_type<span class="code-symbol">(</span>noise1d<span
class="code-symbol">,</span><span class="code-tcod">TCOD_NOISE_PERLIN</span><span
class="code-symbol">)</span><span class="code-symbol">;</span></p>
<p class="py">noise1d<span class="code-symbol"> =</span> libtcod<span class="code-symbol">.</span>noise_new<span
class="code-symbol">(</span><span class="code-value">1</span><span
class="code-symbol">)</span><br />libtcod<span class="code-symbol">.</span>noise_set_type<span
class="code-symbol">(</span>noise1d<span class="code-symbol">,</span>libtcod<span
class="code-symbol">.</span><span class="code-tcod">NOISE_PERLIN</span><span class="code-symbol">)</span>
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