96 lines
3.8 KiB
HTML
96 lines
3.8 KiB
HTML
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<base href="../../../" />
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<script src="page.js"></script>
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<link type="text/css" rel="stylesheet" href="page.css" />
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</head>
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<body>
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[page:Texture] →
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<h1>[name]</h1>
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<p class="desc">
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Creates a texture for use with a video texture.<br /><br />
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This is almost the same as the base [page:Texture Texture] class, except that it continuosly sets [page:Texture.needsUpdate needsUpdate] to *true* so that the texture is updated as the video plays. Automatic creation of [page:Texture.mipmaps mipmaps] is also disabled.
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</p>
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<h2>Code Example</h2>
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<code>
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// assuming you have created a HTML video element with id="video"
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const video = document.getElementById( 'video' );
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const texture = new THREE.VideoTexture( video );
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</code>
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<h2>Examples</h2>
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<p>[example:webgl_materials_video materials / video ]</p>
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<h2>Constructor</h2>
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<h3>[name]( [param:Video video], [param:Constant mapping], [param:Constant wrapS], [param:Constant wrapT], [param:Constant magFilter], [param:Constant minFilter], [param:Constant format], [param:Constant type], [param:Number anisotropy] )</h3>
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<p>
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[page:Video video] -- The video element to use as the texture. <br />
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[page:Constant mapping] -- How the image is applied to the object. An object type of [page:Textures THREE.UVMapping].
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See [page:Textures mapping constants] for other choices.<br />
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[page:Constant wrapS] -- The default is [page:Textures THREE.ClampToEdgeWrapping].
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See [page:Textures wrap mode constants] for other choices.<br />
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[page:Constant wrapT] -- The default is [page:Textures THREE.ClampToEdgeWrapping].
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See [page:Textures wrap mode constants] for other choices.<br />
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[page:Constant magFilter] -- How the texture is sampled when a texel covers more than one pixel.
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The default is [page:Textures THREE.LinearFilter]. See [page:Textures magnification filter constants] for other choices.<br />
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[page:Constant minFilter] -- How the texture is sampled when a texel covers less than one pixel.
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The default is [page:Textures THREE.LinearMipmapLinearFilter]. See [page:Textures minification filter constants] for other choices.<br />
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[page:Constant format] -- The default is [page:Textures THREE.RGBFormat].
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See [page:Textures format constants] for other choices.
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Note that a bug has been reported with Firefox's WebGL implementation where use of [page:Textures THREE.RGBFormat] on a VideoTexture can result in a significant performance penalty, if you encounter this issue it is recommended to pass in [page:Textures THREE.RGBAFormat] instead.<br />
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[page:Constant type] -- Default is [page:Textures THREE.UnsignedByteType].
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See [page:Textures type constants] for other choices.<br />
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[page:Number anisotropy] -- The number of samples taken along the axis through the pixel that has the highest density of texels.
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By default, this value is 1. A higher value gives a less blurry result than a basic mipmap, at the cost of more texture samples being used.
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Use [page:WebGLrenderer.getMaxAnisotropy renderer.getMaxAnisotropy]() to find the maximum valid anisotropy value for the GPU; this value is usually a power of 2.<br /><br />
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</p>
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<h2>Properties</h2>
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<p>
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See the base [page:Texture Texture] class for common properties.
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</p>
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<h3>[property:Boolean needsUpdate]</h3>
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<p>
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You will not need to set this manually here as it is handled by the [page:VideoTexture.update update] method.
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</p>
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<h2>Methods</h2>
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<p>
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See the base [page:Texture Texture] class for common methods.
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</p>
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<h3>[method:null update]()</h3>
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<p>
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This is called automatically and sets [property:Boolean needsUpdate] to *true* every time
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a new frame is available.
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</p>
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<h2>Source</h2>
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<p>
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[link:https://github.com/mrdoob/three.js/blob/master/src/[path].js src/[path].js]
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</p>
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</body>
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</html>
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