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+---
+title: Utilizar extensões de WebGL
+slug: Web/API/WebGL_API/Utilizar_Extensões
+tags:
+ - Avançado
+ - WebGL
+translation_of: Web/API/WebGL_API/Using_Extensions
+---
+<div>{{WebGLSidebar}}</div>
+
+<p>WebGL, like its sister APIs (OpenGL and OpenGL ES), supports extensions. A complete list of extensions is available in the <a class="external" href="http://www.khronos.org/registry/webgl/extensions/">khronos webgl extension registry</a>.</p>
+
+<div class="note"><strong>Nota:</strong> In WebGL, unlike in other GL APIs, extensions are only available if explicitly requested.</div>
+
+<h2 id="Nomes_de_extensão_canónica_prefixos_e_preferências_da_empresa">Nomes de extensão canónica, prefixos e preferências da empresa</h2>
+
+<p>Extensions may be supported by browser vendors before being officially ratified (but only when they are in draft stage). In that case, their name can be prefixed by the vendor prefix (<code>MOZ_</code>, <code>WEBKIT_</code>, etc.) or the extension is only available once a browser preference has been toggled.</p>
+
+<p>If you wish to work with the bleeding edge of extensions, and want to keep working on upon ratification (assuming, of course, that the extension doesn't change in incompatible ways), that you query the canonical extension name as well as the vendor extension name. For instance:</p>
+
+<pre class="brush:js">var ext = (
+ gl.getExtension('OES_vertex_array_object') ||
+ gl.getExtension('MOZ_OES_vertex_array_object') ||
+ gl.getExtension('WEBKIT_OES_vertex_array_object')
+);
+</pre>
+
+<p>Note that, vendor prefix have been discouraged more and more and thus most browser implement experimental extensions behind a feature flag rather than vendor prefix.</p>
+
+<p>The feature flags are:</p>
+
+<ul>
+ <li><code>webgl.enable-draft-extensions</code> in Firefox</li>
+ <li><code>chrome://flags/#enable-webgl-draft-extensions</code> in Chromium based browsers (Chrome, Opera).</li>
+</ul>
+
+<h2 id="Convenções_de_nomeação">Convenções de nomeação</h2>
+
+<p>WebGL extensions are prefixed with "ANGLE", "OES", "EXT" or "WEBGL". These prefixes reflect origin and intent:</p>
+
+<ul>
+ <li>ANGLE_: Extensions that are written by the <a href="https://en.wikipedia.org/wiki/ANGLE_%28software%29">ANGLE library</a> authors.</li>
+ <li>OES_: Extensions that mirror functionality from OpenGL ES or OpenGL API extensions approved by the respective architecture review boards.</li>
+ <li>EXT_: Extensions that mirror other OpenGL ES or OpenGL API extensions.</li>
+ <li>WEBGL_: Extensions that are WebGL-specific and intended to be compatible with multiple web browsers. It should also be used for extensions which originated with the OpenGL ES or OpenGL APIs, but whose behavior has been significantly altered.</li>
+</ul>
+
+<h2 id="Extensões_de_consulta_disponíveis">Extensões de consulta disponíveis</h2>
+
+<p>O contexto de WebGL suporta a consulta de quais as extensões que estão disponíveis.</p>
+
+<pre class="brush:js">var available_extensions = gl.getSupportedExtensions();</pre>
+
+<p>The {{domxref("WebGLRenderingContext.getSupportedExtensions()")}} method returns an array of strings, one for each supported extension.</p>
+
+<h2 id="Lista_de_extensões">Lista de extensões</h2>
+
+<p>As extensões atuais são:</p>
+
+<p>{{page("pt-PT/docs/Web/API/WebGL_API", "Extensões")}}</p>
+
+<h2 id="Ativar_uma_extensão">Ativar uma extensão</h2>
+
+<p>Before an extension can be used it has to be enabled using {{domxref("WebGLRenderingContext.getExtension()")}}. For example:</p>
+
+<pre class="brush:js">var float_texture_ext = gl.getExtension('OES_texture_float');</pre>
+
+<p>The return value is <code>null</code> if the extension is not supported, or an extension object otherwise.</p>
+
+<h2 id="Objetos_de_extensão">Objetos de extensão</h2>
+
+<p>If an extension defines specific symbols or functions that are not available in the core specification of WebGL, they will be available on the extension object returned by the call to <code>gl.getExtension()</code>.</p>
+
+<h2 id="Compatibilidade_de_navegador">Compatibilidade de navegador</h2>
+
+<p>{{CompatibilityTable}}</p>
+
+<div id="compat-desktop">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Funcionalidade</th>
+ <th>Chrome</th>
+ <th>Firefox (Gecko)</th>
+ <th>Internet Explorer</th>
+ <th>Opera</th>
+ <th>Safari</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>9</td>
+ <td>{{CompatGeckoDesktop("2.0")}}</td>
+ <td>11</td>
+ <td>12</td>
+ <td>5.1</td>
+ </tr>
+ <tr>
+ <td><code>ANGLE_instanced_arrays</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("33.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_blend_minmax</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("33.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_color_buffer_float</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("49.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_color_buffer_half_float</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("30.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_disjoint_timer_query</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("41.0")}} [1]</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_frag_depth</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("30.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_sRGB</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("28.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_shader_texture_lod</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("50.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_texture_filter_anisotropic</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("17.0")}} [2]</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_element_index_uint</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("24.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_standard_derivatives</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("10.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_texture_float</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("6.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_texture_float_linear</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("24.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_texture_half_float</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("29.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_texture_half_float_linear</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("30.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_vertex_array_object</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("25.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_color_buffer_float</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("30.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_astc</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("53.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_atc</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("18.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_etc</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("51.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_etc1</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("30.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_pvrtc</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("18.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_s3tc</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("22.0")}} [2]</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_s3tc_srgb</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("55.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_debug_renderer_info</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("19.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_debug_shaders</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("30.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_depth_texture</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("22.0")}} [2]</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_draw_buffers</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("28.0")}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_lose_context</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatGeckoDesktop("22.0")}} [2]</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<div id="compat-mobile">
+<table class="compat-table">
+ <tbody>
+ <tr>
+ <th>Funcionalidades</th>
+ <th>Android</th>
+ <th>Chrome for Android</th>
+ <th>Firefox Mobile (Gecko)</th>
+ <th>IE Mobile</th>
+ <th>Opera Mobile</th>
+ <th>Safari Mobile</th>
+ </tr>
+ <tr>
+ <td>Basic support</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>25</td>
+ <td>{{CompatGeckoMobile("2.0")}}</td>
+ <td>{{CompatVersionUnknown}}</td>
+ <td>12</td>
+ <td>8.0</td>
+ </tr>
+ <tr>
+ <td><code>ANGLE_instanced_arrays</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_blend_minmax</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_color_buffer_float</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_color_buffer_half_float</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_disjoint_timer_query</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_frag_depth</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_sRGB</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_shader_texture_lod</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>EXT_texture_filter_anisotropic</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_element_index_uint</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_standard_derivatives</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_texture_float</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_texture_float_linear</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_texture_half_float</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_texture_half_float_linear</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>OES_vertex_array_object</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_color_buffer_float</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_astc</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_atc</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_etc</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_etc1</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_s3tc</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_pvrtc</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_s3tc</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_compressed_texture_s3tc_srgb</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_debug_renderer_info</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_debug_shaders</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_depth_texture</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_draw_buffers</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ <tr>
+ <td><code>WEBGL_lose_context</code></td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ <td>{{CompatUnknown}}</td>
+ </tr>
+ </tbody>
+</table>
+</div>
+
+<p>[1] Toggling the <code>webgl.enable-draft-extensions</code> preference in about:config is required.</p>
+
+<p>[2] This extension was prefixed with <code>MOZ_</code> in prior versions.</p>
+
+<h2 id="Consulte_também">Consulte também</h2>
+
+<ul>
+ <li>{{domxref("WebGLRenderingContext.getSupportedExtensions()")}}</li>
+ <li>{{domxref("WebGLRenderingContext.getExtension()")}}</li>
+ <li><a href="webglreport.com">Relatório de WebGL</a></li>
+ <li><a href="http://webglstats.comhttp://webglstats.com">Estatísticas de WebGL</a></li>
+</ul>
+
+<div id="SL_balloon_obj" style="display: block;">
+<div class="SL_ImTranslatorLogo" id="SL_button" style="background: rgba(0, 0, 0, 0) repeat scroll 0% 0%; opacity: 1; display: none; left: -8px; top: -25px;"> </div>
+
+<div id="SL_shadow_translation_result2" style="display: none;"> </div>
+
+<div id="SL_shadow_translator" style="display: none;">
+<div id="SL_planshet">
+<div id="SL_arrow_up" style="background: rgba(0, 0, 0, 0) repeat scroll 0% 0%;"> </div>
+
+<div id="SL_Bproviders">
+<div class="SL_BL_LABLE_ON" id="SL_P0" title="Google">G</div>
+
+<div class="SL_BL_LABLE_ON" id="SL_P1" title="Microsoft">M</div>
+
+<div class="SL_BL_LABLE_ON" id="SL_P2" title="Translator">T</div>
+</div>
+
+<div id="SL_alert_bbl" style="display: none;">
+<div id="SLHKclose" style="background: rgba(0, 0, 0, 0) repeat scroll 0% 0%;"> </div>
+
+<div id="SL_alert_cont"> </div>
+</div>
+
+<div id="SL_TB">
+<table id="SL_tables">
+ <tbody><tr>
+ <td class="SL_td"><input></td>
+ <td class="SL_td"><select><option value="auto">Detectar idioma</option><option value="af">Africâner</option><option value="sq">Albanês</option><option value="de">Alemão</option><option value="ar">Arabe</option><option value="hy">Armênio</option><option value="az">Azerbaijano</option><option value="eu">Basco</option><option value="bn">Bengali</option><option value="be">Bielo-russo</option><option value="my">Birmanês</option><option value="bs">Bósnio</option><option value="bg">Búlgaro</option><option value="ca">Catalão</option><option value="kk">Cazaque</option><option value="ceb">Cebuano</option><option value="ny">Chichewa</option><option value="zh-CN">Chinês (Simp)</option><option value="zh-TW">Chinês (Trad)</option><option value="si">Cingalês</option><option value="ko">Coreano</option><option value="ht">Crioulo haitiano</option><option value="hr">Croata</option><option value="da">Dinamarquês</option><option value="sk">Eslovaco</option><option value="sl">Esloveno</option><option value="es">Espanhol</option><option value="eo">Esperanto</option><option value="et">Estoniano</option><option value="fi">Finlandês</option><option value="fr">Francês</option><option value="gl">Galego</option><option value="cy">Galês</option><option value="ka">Georgiano</option><option value="el">Grego</option><option value="gu">Gujarati</option><option value="ha">Hauça</option><option value="iw">Hebraico</option><option value="hi">Hindi</option><option value="hmn">Hmong</option><option value="nl">Holandês</option><option value="hu">Húngaro</option><option value="ig">Igbo</option><option value="id">Indonésio</option><option value="en">Inglês</option><option value="yo">Ioruba</option><option value="ga">Irlandês</option><option value="is">Islandês</option><option value="it">Italiano</option><option value="ja">Japonês</option><option value="jw">Javanês</option><option value="kn">Kannada</option><option value="km">Khmer</option><option value="lo">Laosiano</option><option value="la">Latim</option><option value="lv">Letão</option><option value="lt">Lituano</option><option value="mk">Macedônico</option><option value="ml">Malaiala</option><option value="ms">Malaio</option><option value="mg">Malgaxe</option><option value="mt">Maltês</option><option value="mi">Maori</option><option value="mr">Marathi</option><option value="mn">Mongol</option><option value="ne">Nepalês</option><option value="no">Norueguês</option><option value="fa">Persa</option><option value="pl">Polonês</option><option value="pt">Português</option><option value="pa">Punjabi</option><option value="ro">Romeno</option><option value="ru">Russo</option><option value="sr">Sérvio</option><option value="st">Sesotho</option><option value="so">Somália</option><option value="sw">Suaíli</option><option value="su">Sudanês</option><option value="sv">Sueco</option><option value="tg">Tadjique</option><option value="tl">Tagalo</option><option value="th">Tailandês</option><option value="ta">Tâmil</option><option value="cs">Tcheco</option><option value="te">Telugo</option><option value="tr">Turco</option><option value="uk">Ucraniano</option><option value="ur">Urdu</option><option value="uz">Uzbeque</option><option value="vi">Vietnamita</option><option value="yi">Yiddish</option><option value="zu">Zulu</option></select></td>
+ <td class="SL_td">
+ <div id="SL_switch_b" style="background: rgba(0, 0, 0, 0) repeat scroll 0% 0%;" title="Alternar Idiomas"> </div>
+ </td>
+ <td class="SL_td"><select><option value="af">Africâner</option><option value="sq">Albanês</option><option value="de">Alemão</option><option value="ar">Arabe</option><option value="hy">Armênio</option><option value="az">Azerbaijano</option><option value="eu">Basco</option><option value="bn">Bengali</option><option value="be">Bielo-russo</option><option value="my">Birmanês</option><option value="bs">Bósnio</option><option value="bg">Búlgaro</option><option value="ca">Catalão</option><option value="kk">Cazaque</option><option value="ceb">Cebuano</option><option value="ny">Chichewa</option><option value="zh-CN">Chinês (Simp)</option><option value="zh-TW">Chinês (Trad)</option><option value="si">Cingalês</option><option value="ko">Coreano</option><option value="ht">Crioulo haitiano</option><option value="hr">Croata</option><option value="da">Dinamarquês</option><option value="sk">Eslovaco</option><option value="sl">Esloveno</option><option value="es">Espanhol</option><option value="eo">Esperanto</option><option value="et">Estoniano</option><option value="fi">Finlandês</option><option value="fr">Francês</option><option value="gl">Galego</option><option value="cy">Galês</option><option value="ka">Georgiano</option><option value="el">Grego</option><option value="gu">Gujarati</option><option value="ha">Hauça</option><option value="iw">Hebraico</option><option value="hi">Hindi</option><option value="hmn">Hmong</option><option value="nl">Holandês</option><option value="hu">Húngaro</option><option value="ig">Igbo</option><option value="id">Indonésio</option><option selected value="en">Inglês</option><option value="yo">Ioruba</option><option value="ga">Irlandês</option><option value="is">Islandês</option><option value="it">Italiano</option><option value="ja">Japonês</option><option value="jw">Javanês</option><option value="kn">Kannada</option><option value="km">Khmer</option><option value="lo">Laosiano</option><option value="la">Latim</option><option value="lv">Letão</option><option value="lt">Lituano</option><option value="mk">Macedônico</option><option value="ml">Malaiala</option><option value="ms">Malaio</option><option value="mg">Malgaxe</option><option value="mt">Maltês</option><option value="mi">Maori</option><option value="mr">Marathi</option><option value="mn">Mongol</option><option value="ne">Nepalês</option><option value="no">Norueguês</option><option value="fa">Persa</option><option value="pl">Polonês</option><option value="pt">Português</option><option value="pa">Punjabi</option><option value="ro">Romeno</option><option value="ru">Russo</option><option value="sr">Sérvio</option><option value="st">Sesotho</option><option value="so">Somália</option><option value="sw">Suaíli</option><option value="su">Sudanês</option><option value="sv">Sueco</option><option value="tg">Tadjique</option><option value="tl">Tagalo</option><option value="th">Tailandês</option><option value="ta">Tâmil</option><option value="cs">Tcheco</option><option value="te">Telugo</option><option value="tr">Turco</option><option value="uk">Ucraniano</option><option value="ur">Urdu</option><option value="uz">Uzbeque</option><option value="vi">Vietnamita</option><option value="yi">Yiddish</option><option value="zu">Zulu</option></select></td>
+ <td class="SL_td">
+ <div id="SL_TTS_voice" style="background: rgba(0, 0, 0, 0) repeat scroll 0% 0%;" title="Ouça"> </div>
+ </td>
+ <td class="SL_td">
+ <div class="SL_copy" id="SL_copy" style="background: rgba(0, 0, 0, 0) repeat scroll 0% 0%;" title="Copiar"> </div>
+ </td>
+ <td class="SL_td">
+ <div id="SL_bbl_font_patch"> </div>
+
+ <div class="SL_bbl_font" id="SL_bbl_font" style="background: rgba(0, 0, 0, 0) repeat scroll 0% 0%;" title="Tamanho da fonte"> </div>
+ </td>
+ <td class="SL_td">
+ <div id="SL_bbl_help" style="background: rgba(0, 0, 0, 0) repeat scroll 0% 0%;" title="Ajuda"> </div>
+ </td>
+ <td class="SL_td">
+ <div class="SL_pin_off" id="SL_pin" style="background: rgba(0, 0, 0, 0) repeat scroll 0% 0%;" title="Fixar a janela de pop-up"> </div>
+ </td>
+ </tr>
+</tbody></table>
+</div>
+</div>
+
+<div id="SL_shadow_translation_result" style=""> </div>
+
+<div class="SL_loading" id="SL_loading" style="background: rgba(0, 0, 0, 0) repeat scroll 0% 0%;"> </div>
+
+<div id="SL_player2"> </div>
+
+<div id="SL_alert100">A função de fala é limitada a 200 caracteres</div>
+
+<div id="SL_Balloon_options" style="background: rgb(255, 255, 255) repeat scroll 0% 0%;">
+<div id="SL_arrow_down" style="background: rgba(0, 0, 0, 0) repeat scroll 0% 0%;"> </div>
+
+<table id="SL_tbl_opt" style="width: 100%;">
+ <tbody><tr>
+ <td><input></td>
+ <td>
+ <div id="SL_BBL_IMG" style="background: rgba(0, 0, 0, 0) repeat scroll 0% 0%;" title="Mostrar o botão do ImTranslator 3 segundos"> </div>
+ </td>
+ <td><a class="SL_options" title="Mostrar opções">Opções</a> : <a class="SL_options" title="Histórico de tradução">Histórico</a> : <a class="SL_options" title="Comentários">Comentários</a> : <a class="SL_options" href="https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&amp;hosted_button_id=GD9D8CPW8HFA2" title="Faça sua contribuição">Donate</a></td>
+ <td><span id="SL_Balloon_Close" title="Encerrar">Encerrar</span></td>
+ </tr>
+</tbody></table>
+</div>
+</div>
+</div>
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-01-19 10:17:56 +0000