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| author | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:42:52 -0500 |
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| committer | Peter Bengtsson <mail@peterbe.com> | 2020-12-08 14:42:52 -0500 |
| commit | 074785cea106179cb3305637055ab0a009ca74f2 (patch) | |
| tree | e6ae371cccd642aa2b67f39752a2cdf1fd4eb040 /files/ru/web/api/webglrenderingcontext/enable/index.html | |
| parent | da78a9e329e272dedb2400b79a3bdeebff387d47 (diff) | |
| download | translated-content-074785cea106179cb3305637055ab0a009ca74f2.tar.gz translated-content-074785cea106179cb3305637055ab0a009ca74f2.tar.bz2 translated-content-074785cea106179cb3305637055ab0a009ca74f2.zip | |
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diff --git a/files/ru/web/api/webglrenderingcontext/enable/index.html b/files/ru/web/api/webglrenderingcontext/enable/index.html new file mode 100644 index 0000000000..d7cc40db94 --- /dev/null +++ b/files/ru/web/api/webglrenderingcontext/enable/index.html @@ -0,0 +1,139 @@ +--- +title: WebGLRenderingContext.enable() +slug: Web/API/WebGLRenderingContext/enable +translation_of: Web/API/WebGLRenderingContext/enable +--- +<div>{{APIRef("WebGL")}}</div> + +<p>Метод <strong><code>WebGLRenderingContext.enable()</code></strong> из <a href="/en-US/docs/Web/API/WebGL_API">WebGL API</a> активирует определенные возможности WebGL для текущего контекста.</p> + +<h2 id="Синтаксис">Синтаксис</h2> + +<pre class="syntaxbox">void <var>gl</var>.enable(<var>cap</var>); +</pre> + +<h3 id="Параметры">Параметры</h3> + +<dl> + <dt><code>cap</code></dt> + <dd>A {{domxref("GLenum")}} specifying which WebGL capability to enable. Possible values:</dd> + <dd> + <table class="standard-table"> + <thead> + <tr> + <th scope="col">Константа</th> + <th scope="col">Описание</th> + </tr> + </thead> + <tbody> + <tr> + <td><code>gl.BLEND</code></td> + <td>Активирует с<span class="short_text" id="result_box" lang="ru"><span>мешение значений цветов вычисленного фрагмента</span></span>. Смотри {{domxref("WebGLRenderingContext.blendFunc()")}}.</td> + </tr> + <tr> + <td><code>gl.CULL_FACE</code></td> + <td>Активирует отбраковку полигонов. Смотри {{domxref("WebGLRenderingContext.cullFace()")}}.</td> + </tr> + <tr> + <td><code>gl.DEPTH_TEST</code></td> + <td>Активирует сравнения глубин и обновления для буфера глубины. Смотри {{domxref("WebGLRenderingContext.depthFunc()")}}.</td> + </tr> + <tr> + <td><code>gl.DITHER</code></td> + <td>Activates dithering of color components before they get written to the color buffer.</td> + </tr> + <tr> + <td><code>gl.POLYGON_OFFSET_FILL</code></td> + <td>Activates adding an offset to depth values of polygon's fragments. See {{domxref("WebGLRenderingContext.polygonOffset()")}}.</td> + </tr> + <tr> + <td><code>gl.SAMPLE_ALPHA_TO_COVERAGE</code></td> + <td>Activates the computation of a temporary coverage value determined by the alpha value.</td> + </tr> + <tr> + <td><code>gl.SAMPLE_COVERAGE</code></td> + <td>Activates ANDing the fragment's coverage with the temporary coverage value. See {{domxref("WebGLRenderingContext.sampleCoverage()")}}.</td> + </tr> + <tr> + <td><code>gl.SCISSOR_TEST</code></td> + <td>Activates the scissor test that discards fragments that are outside of the scissor rectangle. See {{domxref("WebGLRenderingContext.scissor()")}}.</td> + </tr> + <tr> + <td><code>gl.STENCIL_TEST</code></td> + <td>Activates stencil testing and updates to the stencil buffer. See {{domxref("WebGLRenderingContext.stencilFunc()")}}.</td> + </tr> + </tbody> + </table> + When using a {{domxref("WebGL2RenderingContext", "WebGL 2 context", "", 1)}}, the following values are available additionally: + + <table class="standard-table"> + <thead> + <tr> + <th scope="col">Constant</th> + <th scope="col">Description</th> + </tr> + </thead> + <tbody> + <tr> + <td><code>gl.RASTERIZER_DISCARD</code></td> + <td>Primitives are discarded immediately before the rasterization stage, but after the optional transform feedback stage. <code>gl.clear()</code> commands are ignored.</td> + </tr> + </tbody> + </table> + </dd> +</dl> + +<h3 id="Return_value">Return value</h3> + +<p>None.</p> + +<h2 id="Examples">Examples</h2> + +<pre class="brush: js">gl.enable(gl.DITHER); +</pre> + +<p>To check if a capability is enabled, use the {{domxref("WebGLRenderingContext.isEnabled()")}} method:</p> + +<pre class="brush: js">gl.isEnabled(gl.DITHER); +// true +</pre> + +<h2 id="Specifications">Specifications</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", "enable")}}</td> + <td>{{Spec2('WebGL')}}</td> + <td>Initial definition for WebGL.</td> + </tr> + <tr> + <td>{{SpecName('OpenGL ES 2.0', "glEnable.xml", "glEnable")}}</td> + <td>{{Spec2('OpenGL ES 2.0')}}</td> + <td>Man page of the OpenGL ES 2.0 API.</td> + </tr> + <tr> + <td>{{SpecName('OpenGL ES 3.0', "glEnable.xhtml", "glEnable")}}</td> + <td>{{Spec2('OpenGL ES 3.0')}}</td> + <td>Man page of the OpenGL ES 3.0 API.</td> + </tr> + </tbody> +</table> + +<h2 id="Browser_compatibility">Browser compatibility</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.enable")}}</p> + +<h2 id="See_also">See also</h2> + +<ul> + <li>{{domxref("WebGLRenderingContext.disable()")}}</li> + <li>{{domxref("WebGLRenderingContext.isEnabled()")}}</li> +</ul> |
