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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<base href="../../../" />
<script src="list.js"></script>
<script src="page.js"></script>
<link type="text/css" rel="stylesheet" href="page.css" />
</head>
<body>
[page:Mesh] →
<h1>[name]</h1>
<p class="desc">
A special version of [page:Mesh] with instanced rendering support. Use [name] if you have to render a large number of
objects with the same geometry and material but with different world transformations. The usage of [name] will help you
to reduce the number of draw calls and thus improve the overall rendering performance in your application.
</p>
<h3>Example</h3>
<p>
[example:webgl_instancing_suzanne WebGL / instancing / suzanne]<br />
</p>
<h2>Constructor</h2>
<h3>[name]( [param:BufferGeometry geometry], [param:Material material], [param:Integer count] )</h3>
<p>
[page:Geometry geometry] - an instance of [page:BufferGeometry].<br />
[page:Material material] - an instance of [page:Material]. Default is a new [page:MeshBasicMaterial].<br />
[page:Integer count] - the number of instances.<br />
</p>
<h2>Properties</h2>
<p>See the base [page:Mesh] class for common properties.</p>
<h3>[property:Integer count]</h3>
<p>
The number of instances. The *count* value passed into the constructor represents the maximum number of
instances of this mesh. You can change the number of instances at runtime to an integer value
in the range [0, count].
</p>
<p>
If you need more instances than the original count value, you have to create a new [name].
</p>
<h3>[property:BufferAttribute instanceMatrix]</h3>
<p>
Represents the local transformation of all instances. For internal use only.
</p>
<h2>Methods</h2>
<p>See the base [page:Mesh] class for common methods.</p>
<h3>[method:null getMatrixAt]( [param:Integer index], [param:Matrix4 matrix] )</h3>
<p>
[page:Integer index]: The index of an instance. Values have to be in the range [0, count].
</p>
<p>
[page:Matrix4 matrix]: This 4x4 matrix will be set to the local transformation matrix of the defined instance.
</p>
<p>
Get the local transformation matrix of the defined instance.
</p>
<h3>[method:null setMatrixAt]( [param:Integer index], [param:Matrix4 matrix] )</h3>
<p>
[page:Integer index]: The index of an instance. Values have to be in the range [0, count].
</p>
<p>
[page:Matrix4 matrix]: A 4x4 matrix representing the local transformation of a single instance.
</p>
<p>
Sets the given local transformation matrix to the defined instance.
</p>
<h2>Source</h2>
<p>
[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
</p>
</body>
</html>
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