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rename upstream-man-pages to upstream-doc
[clinton/guile-figl.git] / upstream-doc / man3 / xhtml / glPointParameter.xml
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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "xhtml1-transitional.dtd">
+<!-- saved from url=(0013)about:internet -->
+<?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>glPointParameter</title><meta name="generator" content="DocBook XSL Stylesheets V1.69.1" /></head><body><div class="refentry" lang="en" xml:lang="en"><a id="glPointParameter"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glPointParameter — specify point parameters</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glPointParameterf</b>(</code></td><td>GLenum  </td><td><var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>GLfloat  </td><td><var class="pdparam">param</var><code>)</code>;</td></tr></table></div><p></p><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glPointParameteri</b>(</code></td><td>GLenum  </td><td><var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>GLint  </td><td><var class="pdparam">param</var><code>)</code>;</td></tr></table></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>pname</code></em></span></dt><dd><p>
+                    Specifies a single-valued point parameter.
+                    <code class="constant">GL_POINT_FADE_THRESHOLD_SIZE</code>, and
+                    <code class="constant">GL_POINT_SPRITE_COORD_ORIGIN</code>
+                    are accepted.
+                </p></dd><dt><span class="term"><em class="parameter"><code>param</code></em></span></dt><dd><p>
+                    Specifies the value that <em class="parameter"><code>pname</code></em> will be set to.
+                </p></dd></dl></div></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glPointParameterfv</b>(</code></td><td>GLenum  </td><td><var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>const GLfloat *  </td><td><var class="pdparam">params</var><code>)</code>;</td></tr></table></div><p></p><div class="funcsynopsis"><table border="0" summary="Function synopsis" cellspacing="0" cellpadding="0"><tr><td><code class="funcdef">void <b class="fsfunc">glPointParameteriv</b>(</code></td><td>GLenum  </td><td><var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>const GLint *  </td><td><var class="pdparam">params</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters2"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>pname</code></em></span></dt><dd><p>
+                    Specifies a point parameter.
+                    <code class="constant">GL_POINT_FADE_THRESHOLD_SIZE</code>, and
+                    <code class="constant">GL_POINT_SPRITE_COORD_ORIGIN</code>
+                    are accepted.
+                </p></dd><dt><span class="term"><em class="parameter"><code>params</code></em></span></dt><dd><p>
+                    Specifies the value to be assigned to <em class="parameter"><code>pname</code></em>..
+                </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p>
+            The following values are accepted for <em class="parameter"><code>pname</code></em>:
+        </p><div class="variablelist"><dl><dt><span class="term"><code class="constant">GL_POINT_FADE_THRESHOLD_SIZE</code></span></dt><dd><p>
+                    </p><p>
+                        <em class="parameter"><code>params</code></em> is a single floating-point value that specifies the threshold value
+                        to which point sizes are clamped if they exceed the specified value.  The
+                        default value is 1.0.
+                    </p></dd><dt><span class="term"><code class="constant">GL_POINT_SPRITE_COORD_ORIGIN</code></span></dt><dd><p>
+                    </p><p>
+                        <em class="parameter"><code>params</code></em> is a single enum specifying the point sprite texture coordinate origin, either <code class="constant">GL_LOWER_LEFT</code> or <code class="constant">GL_UPPER_LEFT</code>. 
+                        The default value is <code class="constant">GL_UPPER_LEFT</code>.
+                    </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p>
+            <code class="constant">GL_INVALID_VALUE</code> is generated if the value specified for
+            <code class="constant">GL_POINT_FADE_THRESHOLD_SIZE</code> is less than zero.
+        </p><p>
+            <code class="constant">GL_INVALID_ENUM</code> is generated If the value specified for
+            <code class="constant">GL_POINT_SPRITE_COORD_ORIGIN</code> is not <code class="constant">GL_LOWER_LEFT</code> or <code class="constant">GL_UPPER_LEFT</code>.
+        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p>
+            <a href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_POINT_FADE_THRESHOLD_SIZE</code>
+        </p><p>
+            <a href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_POINT_SPRITE_COORD_ORIGIN</code>
+        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p>
+            <a href="glPointSize.xml"><span class="citerefentry"><span class="refentrytitle">glPointSize</span></span></a>
+        </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p>
+            Copyright <span class="trademark"></span>© 1991-2006
+            Silicon Graphics, Inc. Copyright <span class="trademark"></span>© 2010
+            Khronos Group. This document is licensed under the SGI
+            Free Software B License. For details, see
+            <a href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>.
+        </p></div></div></body></html>
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