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121 lines
4.8 KiB
121 lines
4.8 KiB
2 years ago
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<!DOCTYPE html>
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<html lang="zh">
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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>深度纹理（[name]）</h1>
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<p class="desc">
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This class can be used to automatically save the depth information of a rendering into a texture.
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When using a WebGL 1 rendering context, [name] requires support for the [link:https://www.khronos.org/registry/webgl/extensions/WEBGL_depth_texture/ WEBGL_depth_texture] extension.
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</p>
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<h2>例子</h2>
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<p>
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[example:webgl_depth_texture depth / texture]
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</p>
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<h2>构造函数</h2>
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<h3>[name]( [param:Number width], [param:Number height], [param:Constant type], [param:Constant wrapS], [param:Constant wrapT], [param:Constant magFilter], [param:Constant minFilter], [param:Number anisotropy], [param:Constant format] )</h3>
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<p>
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[page:Number width] -- 纹理的宽度。<br />
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[page:Number height] -- 纹理的高度。<br />
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[page:Constant type] -- Default is [page:Textures THREE.UnsignedIntType] when using [page:Textures DepthFormat] and [page:Textures THREE.UnsignedInt248Type] when using [page:Textures DepthStencilFormat].
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请参阅[page:Textures type constants]（类型常量）来了解其他选项。<br />
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[page:Constant mapping] --
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请参阅[page:Textures mapping mode constants]（映射模式常量）来了解其他选项。<br />
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[page:Constant wrapS] -- 默认值是[page:Textures THREE.ClampToEdgeWrapping].
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请参阅[page:Textures wrap mode constants]（包裹模式常量）来了解其他选项。<br />
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[page:Constant wrapT] -- 默认值是[page:Textures THREE.ClampToEdgeWrapping].
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请参阅[page:Textures wrap mode constants]（包裹模式常量）来了解其他选项。<br />
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[page:Constant magFilter] -- 当一个纹素覆盖大于一个像素时，贴图将如何采样。
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其默认值为[page:Textures THREE.LinearFilter]。请参阅[page:Textures magnification filter constants]（放大滤镜常量）来了解其它选项。<br />
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[page:Constant minFilter] -- 当一个纹素覆盖小于一个像素时，贴图将如何采样。
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其默认值为[page:Textures THREE.LinearMipMapLinearFilter]。请参阅[page:Textures minification filter constants]（缩小滤镜常量）来了解其它选项。<br />
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[page:Number anisotropy] -- 沿着轴，通过具有最高纹素密度的像素的样本数。
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默认情况下，这个值为1。设置一个较高的值将会产生比基本的mipmap更清晰的效果，代价是需要使用更多纹理样本。
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使用[page:WebGLrenderer.getMaxAnisotropy renderer.getMaxAnisotropy]() 来查询GPU中各向异性的最大有效值；这个值通常是2的幂。<br /><br />
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[page:Constant format] -- 这个值必须是[page:Textures DepthFormat]（默认值）或者[page:Textures DepthStencilFormat]。
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请参阅[page:Textures format constants]（格式常量）来了解详细信息。<br />
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</p>
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<h2>属性</h2>
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<p>
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共有属性请参见其基类[page:Texture Texture]。
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—— 以下属性也是texture类中的一部分，但在这里默认值不同。
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</p>
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<h3>[page:Texture.format format]</h3>
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<p>
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[page:Textures DepthFormat]（默认值）或者[page:Textures DepthStencilFormat]中的一个。
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请参阅[page:Textures format constants]来了解详细信息。<br />
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</p>
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<h3>[page:Texture.type type]</h3>
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<p>
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Default is [page:Textures THREE.UnsignedIntType] when using [page:Textures DepthFormat] and [page:Textures THREE.UnsignedInt248Type] when using [page:Textures DepthStencilFormat].
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请参阅[page:Textures format constants]来了解详细信息。<br />
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</p>
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<h3>[page:Texture.magFilter magFilter]</h3>
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<p>
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当一个纹素覆盖大于一个像素时，贴图将如何采样。
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其默认值为[page:Textures THREE.NearestFilter]。
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请参阅[page:Textures magnification filter constants]（放大滤镜常量）来了解其他选项。
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</p>
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<h3>[page:Texture.minFilter minFilter]</h3>
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<p>
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当一个纹素覆盖小于一个像素时，贴图将如何采样。
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其默认值为[page:Textures THREE.NearestFilter]。
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请参阅[page:Textures minification filter constants]（缩小滤镜常量）来了解其他选项。
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</p>
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<h3>[page:Texture.flipY flipY]</h3>
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<p>
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深度贴图不需要被翻转，因此其默认值为*false*。
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</p>
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<h3>[page:Texture.generateMipmaps generateMipmaps]</h3>
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<p>
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深度贴图不使用mipmap。
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</p>
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<h3>[property:Boolean isDepthTexture]</h3>
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<p>
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Read-only flag to check if a given object is of type [name].
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</p>
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<h2>方法</h2>
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<p>
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共有方法请参见其基类[page:Texture Texture]。
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</p>
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<h2>源代码</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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