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three.js

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InstancedMesh.html 2.7 KB
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Documentation: Added InstancedMesh page.  
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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] &rarr;

		<h1>[name]</h1>

		<p class="desc">
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		A special version of [page:Mesh] with instanced rendering support. Use [name] if you have to render a large number of
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		objects with the same geometry and material but with different world transformations. The usage of [name] will help you
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		to reduce the number of draw calls and thus improve the overall rendering performance in your application.
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		</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 />
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		[page:Integer count] - the number of instances.<br />
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		</p>

		<h2>Properties</h2>
		<p>See the base [page:Mesh] class for common properties.</p>

		<h3>[property:Integer count]</h3>
		<p>
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			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
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			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>
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		<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>
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		<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>