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	<title>TreeGenerator - Three.js Docs</title>
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	<h1 translate="no">TreeGenerator</h1>
		<section>
			<header>
				<div class="class-description"><p>Grows a procedural tree skeleton — trunk, branches and twigs, each swept as a tapered
tube — and bakes it into one non-indexed <a href="BufferGeometry.html">BufferGeometry</a> (position and normal
only), ready to instance into a forest. It produces <em>branches only</em>; add foliage as a
separate layer.</p>
<p>The branching is deterministic for a given <code>seed</code>: a recursive sweep lays down gently
curved tubes with a parallel-transport frame (so they never twist), forking by the
pipe model (each child much thinner than its parent), spreading children along the
upper part of each branch with a golden-angle roll, and pulling them back up toward
the light. A flared root, non-linear taper and gravity droop fill in the character.</p>
<p>Parameters are set with a fluent builder: a <code>set&lt;Param&gt;()</code> exists for every default
( <code>setSeed</code>, <code>setLevels</code>, <code>setChildren</code>, … ), each returning <code>this</code> for chaining.</p>
<p>Each <code>build()</code> returns a fresh, independent mesh that the caller owns, so one
generator can be re-parametrized and built repeatedly to grow a varied stand:</p></div>
				<h2>Code Example</h2>
				<div translate="no"><pre><code class="language-js">const generator = new TreeGenerator( material );
const oak = generator.setSeed( 1 ).setLevels( 4 ).build();
const pine = generator.setSeed( 2 ).setLevels( 5 ).build();
</code></pre></div>
			</header>
			<article>
				<div class="container-overview">
					<h2>Constructor</h2>
					<h3 class="name name-method" id="TreeGenerator" translate="no">new <a href="#TreeGenerator">TreeGenerator</a><span class="signature">()</span> </h3>
					<div class="method">
					</div>
				</div>
				<h2 class="subsection-title">Source</h2>
				<p>
					<a href="https://github.com/mrdoob/three.js/blob/master/examples/jsm/generators/TreeGenerator.js" translate="no" target="_blank" rel="noopener">examples/jsm/generators/TreeGenerator.js</a>
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