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author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
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committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:40:17 -0500 |
commit | 33058f2b292b3a581333bdfb21b8f671898c5060 (patch) | |
tree | 51c3e392513ec574331b2d3f85c394445ea803c6 /files/zh-cn/web/api/webglrenderingcontext/cleardepth | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
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diff --git a/files/zh-cn/web/api/webglrenderingcontext/cleardepth/index.html b/files/zh-cn/web/api/webglrenderingcontext/cleardepth/index.html new file mode 100644 index 0000000000..a663975cc2 --- /dev/null +++ b/files/zh-cn/web/api/webglrenderingcontext/cleardepth/index.html @@ -0,0 +1,75 @@ +--- +title: WebGLRenderingContext.clearDepth() +slug: Web/API/WebGLRenderingContext/clearDepth +tags: + - WebGL + - 深度清除值 +translation_of: Web/API/WebGLRenderingContext/clearDepth +--- +<div>{{APIRef("WebGL")}}</div> + +<p><a href="/en-US/docs/Web/API/WebGL_API">WebGL API</a>的<strong><code>WebGLRenderingContext.clearDepth()</code></strong> 方法用于设置深度缓冲区的深度清除值。</p> + +<p>这个深度清除值的设定,是为了调用{{domxref("WebGLRenderingContext.clear", "clear()")}} 的时候使用,这个值的范围是0到1。</p> + +<h2 id="语法">语法</h2> + +<pre class="syntaxbox">void <var>gl</var>.clearDepth(<var>depth</var>); +</pre> + +<h3 id="参数">参数</h3> + +<dl> + <dt><code>depth</code></dt> + <dd>类型:{{domxref("GLclampf")}}。 深度值的设定,是当清除深度缓冲区的时候使用。默认值为1。</dd> +</dl> + +<h3 id="返回值">返回值</h3> + +<p>None.</p> + +<h2 id="样例">样例</h2> + +<pre class="brush: js">gl.clearDepth(0.5); +</pre> + +<p>若要获取当前深度清除值,查询<code>DEPTH_CLEAR_VALUE</code> 常量。</p> + +<pre class="brush: js">gl.getParameter(gl.DEPTH_CLEAR_VALUE); +// 0.5</pre> + +<h2 id="规范">规范</h2> + +<table class="standard-table"> + <tbody> + <tr> + <th scope="col">Specification</th> + <th scope="col">Status</th> + <th scope="col">Comment</th> + </tr> + <tr> + <td>{{SpecName('WebGL', "#5.14.3", "clearDepth")}}</td> + <td>{{Spec2('WebGL')}}</td> + <td>Initial definition.</td> + </tr> + <tr> + <td>{{SpecName('OpenGL ES 2.0', "glClearDepthf.xml", "glClearDepthf")}}</td> + <td>{{Spec2('OpenGL ES 2.0')}}</td> + <td>Man page of the OpenGL API.</td> + </tr> + </tbody> +</table> + +<h2 id="浏览器兼容性">浏览器兼容性</h2> + +<p class="hidden">The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out <a href="https://github.com/mdn/browser-compat-data">https://github.com/mdn/browser-compat-data</a> and send us a pull request.</p> + +<p>{{Compat("api.WebGLRenderingContext.clearDepth")}}</p> + +<h2 id="另见">另见</h2> + +<ul> + <li>{{domxref("WebGLRenderingContext.clear()")}}</li> + <li>{{domxref("WebGLRenderingContext.clearColor()")}}</li> + <li>{{domxref("WebGLRenderingContext.clearStencil()")}}</li> +</ul> |