javascript
/
three.js
镜像自地址 https://github.com/tazdij/three.js.git


			
				
					
						
						
							123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133
							<!DOCTYPE html>
<html lang="en">
	<head>
		<meta charset="utf-8" />
		<base href="../../../" />
		<script src="page.js"></script>
		<link type="text/css" rel="stylesheet" href="page.css" />
	</head>
	<body>
		<h1>[name]</h1>

		<p class="desc">
			A
			[link:https://webglfundamentals.org/webgl/lessons/webgl-render-to-texture.html render target] 
			is a buffer where the video card draws pixels for a scene
			that is being rendered in the background. It is used in different effects,
			such as applying postprocessing to a rendered image before displaying it
			on the screen.
		</p>

		<h2>Constructor</h2>

		<h3>
			[name]([param:Number width], [param:Number height], [param:Object options])
		</h3>

		<p>
			[page:Float width] - The width of the renderTarget. Default is `1`.<br />
			[page:Float height] - The height of the renderTarget. Default is `1`.<br />
			options - optional object that holds texture parameters for an
			auto-generated target texture and depthBuffer/stencilBuffer booleans. For
			an explanation of the texture parameters see [page:Texture Texture]. The
			following are valid options:<br /><br />

			[page:Constant wrapS] - default is [page:Textures ClampToEdgeWrapping].
			<br />
			[page:Constant wrapT] - default is [page:Textures ClampToEdgeWrapping].
			<br />
			[page:Constant magFilter] - default is [page:Textures LinearFilter].
			<br />
			[page:Constant minFilter] - default is [page:Textures LinearFilter].
			<br />
			[page:Boolean generateMipmaps] - default is `false`.<br />
			[page:Constant format] - default is [page:Textures RGBAFormat]. <br />
			[page:Constant type] - default is [page:Textures UnsignedByteType]. <br />
			[page:Number anisotropy] - default is `1`. See
			[page:Texture.anisotropy]<br />
			[page:Constant colorSpace] - default is [page:Textures NoColorSpace].
			<br />
			[page:Boolean depthBuffer] - default is `true`. <br />
			[page:Boolean stencilBuffer] - default is `false`.<br />
			[page:Number samples] - default is `0`.<br /><br />

			Creates a new [name]
		</p>

		<h2>Properties</h2>

		<h3>[property:Boolean isWebGLRenderTarget]</h3>
		<p>Read-only flag to check if a given object is of type [name].</p>

		<h3>[property:number width]</h3>
		<p>The width of the render target.</p>

		<h3>[property:number height]</h3>
		<p>The height of the render target.</p>

		<h3>[property:Vector4 scissor]</h3>
		<p>
			A rectangular area inside the render target's viewport. Fragments that are
			outside the area will be discarded.
		</p>

		<h3>[property:Boolean scissorTest]</h3>
		<p>Indicates whether the scissor test is active or not.</p>

		<h3>[property:Vector4 viewport]</h3>
		<p>The viewport of this render target.</p>

		<h3>[property:Texture texture]</h3>
		<p>
			This texture instance holds the rendered pixels. Use it as input for
			further processing.
		</p>

		<h3>[property:Boolean depthBuffer]</h3>
		<p>Renders to the depth buffer. Default is true.</p>

		<h3>[property:Boolean stencilBuffer]</h3>
		<p>Renders to the stencil buffer. Default is false.</p>

		<h3>[property:DepthTexture depthTexture]</h3>
		<p>
			If set, the scene depth will be rendered to this texture. Default is null.
		</p>

		<h3>[property:Number samples]</h3>
		<p>
			Defines the count of MSAA samples. Can only be used with WebGL 2. Default
			is `0`.
		</p>

		<h2>Methods</h2>

		<h3>
			[method:undefined setSize]( [param:Number width], [param:Number height] )
		</h3>
		<p>Sets the size of the render target.</p>

		<h3>[method:WebGLRenderTarget clone]()</h3>
		<p>Creates a copy of this render target.</p>

		<h3>[method:this copy]( [param:WebGLRenderTarget source] )</h3>
		<p>Adopts the settings of the given render target.</p>

		<h3>[method:undefined dispose]()</h3>
		<p>
			Frees the GPU-related resources allocated by this instance. Call this
			method whenever this instance is no longer used in your app.
		</p>

		<p>
			[page:EventDispatcher EventDispatcher] methods are available on this
			class.
		</p>

		<h2>Source</h2>

		<p>
			[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
		</p>
	</body>
</html>