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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/isshader | |
parent | 8b66d724f7caf0157093fb09cfec8fbd0c6ad50a (diff) | |
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Diffstat (limited to 'files/zh-cn/web/api/webglrenderingcontext/isshader')
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diff --git a/files/zh-cn/web/api/webglrenderingcontext/isshader/index.html b/files/zh-cn/web/api/webglrenderingcontext/isshader/index.html new file mode 100644 index 0000000000..b0a5c10de4 --- /dev/null +++ b/files/zh-cn/web/api/webglrenderingcontext/isshader/index.html @@ -0,0 +1,78 @@ +--- +title: WebGLRenderingContext.isShader() +slug: Web/API/WebGLRenderingContext/isShader +tags: + - API + - Method + - Reference + - WebGL + - WebGLRenderingContext +translation_of: Web/API/WebGLRenderingContext/isShader +--- +<div>{{APIRef("WebGL")}}</div> + +<p><a href="/en-US/docs/Web/API/WebGL_API">WebGL API</a> 中的 <strong><code>WebGLRenderingContext.isShader()</code></strong> 方法,在传入的 {{domxref("WebGLShader")}} 有效时返回 <code>true</code> ,否则返回 <code>false</code> 。</p> + +<h2 id="语法">语法</h2> + +<pre class="syntaxbox">GLboolean <var>gl</var>.isShader(<var>shader</var>); +</pre> + +<h3 id="参数">参数</h3> + +<dl> + <dt>shader</dt> + <dd>需要校验的 {{domxref("WebGLShader")}} </dd> +</dl> + +<h3 id="返回值">返回值</h3> + +<p>用来表明 shader 是否有效的 {{domxref("GLboolean")}} 对象</p> + +<h2 id="示例">示例</h2> + +<h3 id="校验一个_Shader">校验一个 Shader</h3> + +<pre class="brush: js">var canvas = document.getElementById('canvas'); +var gl = canvas.getContext('webgl'); +var shader = gl.createShader(gl.VERTEX_SHADER); + +// ... + +gl.isShader(shader); +</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', "#5.14.9", "isShader")}}</td> + <td>{{Spec2('WebGL')}}</td> + <td>Initial definition.</td> + </tr> + <tr> + <td>{{SpecName('OpenGL ES 2.0', "glIsShader.xml", "glIsShader")}}</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.isShader")}}</p> + +<h2 id="参阅">参阅</h2> + +<ul> + <li>{{domxref("WebGLRenderingContext.createShader()")}}</li> + <li>{{domxref("WebGLRenderingContext.deleteShader()")}}</li> +</ul> |