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><head><title>glClearDepth</title><link rel="stylesheet" href="style.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.59.1"/><link rel="home" href="index.xml" title="&#xA;      PyOpenGL 2.0.1.04 Man Pages"/><link rel="up" href="reference-GL.xml" title="GL"/><link rel="previous" href="glClearColor.3G.xml" title="glClearColor"/><link rel="next" href="glClearIndex.3G.xml" title="glClearIndex"/></head><body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">glClearDepth</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="glClearColor.3G.xml">Prev</a> </td><th width="60%" align="center">GL</th><td width="20%" align="right"> <a accesskey="n" href="glClearIndex.3G.xml">Next</a></td></tr></table><hr/></div><div class="refentry" lang="en"><a name="glClearDepth.3G"/><div class="titlepage"/><div class="refnamediv"><a name="glClearDepth.3G-name"/><h2>Name</h2><p>glClearDepth &#8212; specify the clear value for the depth buffer</p></div><div class="refsynopsisdiv"><a name="glClearDepth.3G-c_spec"/><h2>C Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code>void <tt>glClearDepth</tt>
              </code></td><td valign="top"><code>(</code></td><td valign="top"><code>GLclampd <i><tt>depth</tt></i>
              );</code></td></tr></table></div><div class="refsynopsisdiv"><a name="glClearDepth.3G-python_spec"/><h2>Python Specification</h2><table class="funcprototype" border="0" cellpadding="0" cellspacing="0"><tr><td valign="top"><code>
                <tt>glClearDepth</tt>
              </code></td><td valign="top"><code>(</code></td><td valign="top"><code>
                <i><tt>depth</tt></i>
              ) &#8594; 
                <tt>None</tt>
              </code></td></tr></table></div><div class="refsect1" lang="en"><a name="glClearDepth.3G-parameters"/><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term">
                <i><tt>depth</tt></i>
              </span></dt><dd>
						Specifies the depth value used when the depth buffer is cleared. The initial value is 1.
					</dd></dl></div></div><div class="refsect1" lang="en"><a name="glClearDepth.3G-description"/><h2>Description</h2><p>
			<tt>glClearDepth</tt> specifies the depth value used by <a href="glClear.3G.xml"><tt>glClear</tt></a> to
			clear the depth buffer. Values specified by <tt>glClearDepth</tt> are clamped to the range <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" overflow="scroll">
					<mml:mfenced separator="," close="]" open="[">
						<mml:mn>0</mml:mn>
						<mml:mn>1</mml:mn>
					</mml:mfenced>
				</mml:math>.
		</p></div><div class="refsect1" lang="en"><a name="glClearDepth.3G-errors"/><h2>Errors</h2><p>
			<tt>GL_INVALID_OPERATION</tt> is generated if <tt>glClearDepth</tt> is executed between the
			execution of <a href="glBegin.3G.xml"><tt>glBegin</tt></a> and the corresponding execution of <a href="glBegin.3G.xml"><tt>glEnd</tt></a>.
		</p></div><div class="refsect1" lang="en"><a name="glClearDepth.3G-associated_gets"/><h2>Associated Gets</h2><p>
			<tt>glGet</tt> with argument <tt>GL_DEPTH_CLEAR_VALUE</tt>
		</p></div><div class="refsect1" lang="en"><a name="glClearDepth.3G-see_also"/><h2>See Also</h2><p>
			<a href="glClear.3G.xml"><tt>glClear</tt></a>
		</p></div><div class="refsect1" lang="en"><a name="glClearDepth.3G-python_samples"/><h2>Python Sample Code</h2><p>
            </p><div class="variablelist"><dl><dt><span class="term">glClearDepth</span></dt><dd><div class="itemizedlist"><ul type="disc"><li>OpenGL/Demo/<a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/pyopengl/PyOpenGL2/OpenGL/Demo/GLE/maintest.py?rev=HEAD&amp;content-type=text/vnd.viewcvs-markup" target="_top">GLE/maintest.py</a> Ln#52 </li><li>OpenGL/Demo/<a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/pyopengl/PyOpenGL2/OpenGL/Demo/NeHe/lesson1.py?rev=HEAD&amp;content-type=text/vnd.viewcvs-markup" target="_top">NeHe/lesson1.py</a> Ln#55 </li><li>OpenGL/Demo/<a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/pyopengl/PyOpenGL2/OpenGL/Demo/NeHe/lesson18.py?rev=HEAD&amp;content-type=text/vnd.viewcvs-markup" target="_top">NeHe/lesson18.py</a> Ln#114 </li><li>OpenGL/Demo/<a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/pyopengl/PyOpenGL2/OpenGL/Demo/NeHe/lesson2.py?rev=HEAD&amp;content-type=text/vnd.viewcvs-markup" target="_top">NeHe/lesson2.py</a> Ln#55 </li><li>OpenGL/Demo/<a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/pyopengl/PyOpenGL2/OpenGL/Demo/NeHe/lesson3.py?rev=HEAD&amp;content-type=text/vnd.viewcvs-markup" target="_top">NeHe/lesson3.py</a> Ln#55 </li><li>OpenGL/Demo/<a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/pyopengl/PyOpenGL2/OpenGL/Demo/NeHe/lesson4.py?rev=HEAD&amp;content-type=text/vnd.viewcvs-markup" target="_top">NeHe/lesson4.py</a> Ln#65 </li><li>OpenGL/Demo/<a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/pyopengl/PyOpenGL2/OpenGL/Demo/NeHe/lesson5.py?rev=HEAD&amp;content-type=text/vnd.viewcvs-markup" target="_top">NeHe/lesson5.py</a> Ln#68 </li><li>OpenGL/Demo/<a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/pyopengl/PyOpenGL2/OpenGL/Demo/NeHe/lesson6-multi.py?rev=HEAD&amp;content-type=text/vnd.viewcvs-markup" target="_top">NeHe/lesson6-multi.py</a> Ln#108 </li><li>OpenGL/Demo/<a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/pyopengl/PyOpenGL2/OpenGL/Demo/NeHe/lesson6.py?rev=HEAD&amp;content-type=text/vnd.viewcvs-markup" target="_top">NeHe/lesson6.py</a> Ln#90 </li><li>OpenGL/Demo/<a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/pyopengl/PyOpenGL2/OpenGL/Demo/simple/GLE.py?rev=HEAD&amp;content-type=text/vnd.viewcvs-markup" target="_top">simple/GLE.py</a> Ln#30 </li><li>OpenGL/Demo/<a href="http://cvs.sourceforge.net/cgi-bin/viewcvs.cgi/pyopengl/PyOpenGL2/OpenGL/Demo/twburton/knot.py?rev=HEAD&amp;content-type=text/vnd.viewcvs-markup" target="_top">twburton/knot.py</a> Ln#157 </li></ul></div></dd></dl></div><p>
          </p></div></div><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="glClearColor.3G.xml">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="reference-GL.xml">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="glClearIndex.3G.xml">Next</a></td></tr><tr><td width="40%" align="left" valign="top">glClearColor </td><td width="20%" align="center"><a accesskey="h" href="index.xml">Home</a></td><td width="40%" align="right" valign="top"> glClearIndex</td></tr></table></div></body></html>