HCoop / clinton / guile-figl.git / blame
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| 7faf1d71 AW |
1 | <?xml version="1.0" encoding="UTF-8"?> |
| 2 | <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd"> | |
| 3 | <!-- saved from url=(0013)about:internet --> | |
| 4 | <?xml-stylesheet type="text/xsl" href="mathml.xsl"?><html xmlns="http://www.w3.org/1999/xhtml" xmlns:pref="http://www.w3.org/2002/Math/preference" pref:renderer="mathplayer-dl"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><link rel="stylesheet" type="text/css" href="opengl-man.css" /><title>glDepthMask - OpenGL 4 Reference Pages</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="glDepthMask"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glDepthMask — enable or disable writing into the depth buffer</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><p><code class="funcdef">void <b class="fsfunc">glDepthMask</b>(</code>GLboolean <var class="pdparam">flag</var><code>)</code>;</p></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>flag</code></em></span></dt><dd><p> | |
| 5 | Specifies whether the depth buffer is enabled for writing. | |
| 6 | If <em class="parameter"><code>flag</code></em> is <code class="constant">GL_FALSE</code>, | |
| 7 | depth buffer writing is disabled. | |
| 8 | Otherwise, it is enabled. | |
| 9 | Initially, depth buffer writing is enabled. | |
| 10 | </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p> | |
| 11 | <code class="function">glDepthMask</code> specifies whether the depth buffer is enabled for writing. | |
| 12 | If <em class="parameter"><code>flag</code></em> is <code class="constant">GL_FALSE</code>, | |
| 13 | depth buffer writing is disabled. | |
| 14 | Otherwise, it is enabled. | |
| 15 | Initially, depth buffer writing is enabled. | |
| 16 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p> | |
| 17 | <a href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_DEPTH_WRITEMASK</code> | |
| 18 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p> | |
| 19 | Even if the depth buffer exists and the depth mask is non-zero, the | |
| 20 | depth buffer is not updated if the depth test is disabled. In order to | |
| 21 | unconditionally write to the depth buffer, the depth test should be enabled | |
| 22 | and set to <code class="constant">GL_ALWAYS</code> (see <a href="glDepthFunc.xml"><span class="citerefentry"><span class="refentrytitle">glDepthFunc</span></span></a>). | |
| 23 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p> | |
| 24 | <a href="glColorMask.xml"><span class="citerefentry"><span class="refentrytitle">glColorMask</span></span></a>, | |
| 25 | <a href="glDepthFunc.xml"><span class="citerefentry"><span class="refentrytitle">glDepthFunc</span></span></a>, | |
| 26 | <a href="glDepthRange.xml"><span class="citerefentry"><span class="refentrytitle">glDepthRange</span></span></a>, | |
| 27 | <a href="glStencilMask.xml"><span class="citerefentry"><span class="refentrytitle">glStencilMask</span></span></a> | |
| 28 | </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p> | |
| 29 | Copyright <span class="trademark"></span>© 1991-2006 | |
| 30 | Silicon Graphics, Inc. | |
| 31 | Copyright <span class="trademark"></span>© 2012 | |
| 32 | Khronos Group. | |
| 33 | This document is licensed under the SGI | |
| 34 | Free Software B License. For details, see | |
| 35 | <a href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>. | |
| 36 | </p></div></div></body></html> |