samien
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three.js
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	<title>ForestGenerator - Three.js Docs</title>
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	<h1 translate="no">ForestGenerator</h1>
		<section>
			<header>
				<div class="class-description"><p>Carpets a <a href="TerrainGenerator.html">TerrainGenerator</a> ( or anything exposing <code>sampleHeight</code>,
<code>sampleSlope</code>, <code>minY</code>, <code>maxY</code> and <code>parameters.size</code> ) with a forest of hundreds
of thousands of trees in a single draw call.</p>
<p>Each tree is the cheapest thing that still reads as a tree: a ~20-face icosphere
squashed into a tapered teardrop and lumped with a little noise, carrying a baked
dark-base / bright-top gradient. Tens of triangles each, so a single
THREE.InstancedMesh of half a million of them costs one draw call. Trees
are placed by rejection sampling against ecological rules — a min/max altitude
band ( above the mist floor, below the snowline ), a slope limit ( none on
cliffs ) and a low-frequency density mask that opens clearings — then jittered in
yaw, lean and ( squared-biased ) scale so the stand never reads as copies.</p></div>
				<h2>Code Example</h2>
				<div translate="no"><pre><code class="language-js">const forest = new ForestGenerator( { count: 500000 } );
scene.add( forest.build( terrain ) );
</code></pre></div>
			</header>
			<article>
				<div class="container-overview">
					<h2>Constructor</h2>
					<h3 class="name name-method" id="ForestGenerator" translate="no">new <a href="#ForestGenerator">ForestGenerator</a><span class="signature">()</span> </h3>
					<div class="method">
					</div>
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				<h2 class="subsection-title">Source</h2>
				<p>
					<a href="https://github.com/mrdoob/three.js/blob/master/examples/jsm/generators/ForestGenerator.js" translate="no" target="_blank" rel="noopener">examples/jsm/generators/ForestGenerator.js</a>
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