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[clinton/guile-figl.git] / upstream-doc / man4 / xhtml / glPointSize.xml
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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>glPointSize - 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="glPointSize"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glPointSize — specify the diameter of rasterized points</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><p><code class="funcdef">void <b class="fsfunc">glPointSize</b>(</code>GLfloat <var class="pdparam">size</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>size</code></em></span></dt><dd><p>
5 Specifies the diameter of rasterized points.
6 The initial value is 1.
7 </p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p>
8 <code class="function">glPointSize</code> specifies the rasterized diameter of points. If point size mode
9 is disabled (see <a href="glEnable.xml"><span class="citerefentry"><span class="refentrytitle">glEnable</span></span></a> with parameter
10 <code class="constant">GL_PROGRAM_POINT_SIZE</code>), this value will be used to rasterize points. Otherwise,
11 the value written to the shading language built-in variable <code class="code">gl_PointSize</code> will be used.
12 </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p>
13 The point size specified by <code class="function">glPointSize</code> is always returned when
14 <code class="constant">GL_POINT_SIZE</code> is queried. Clamping and rounding for points have no effect on the specified value.
15 </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p>
16 <code class="constant">GL_INVALID_VALUE</code> is generated if <em class="parameter"><code>size</code></em> is less than or equal to 0.
17 </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p>
18 <a href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_POINT_SIZE_RANGE</code>
19 </p><p>
20 <a href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_POINT_SIZE_GRANULARITY</code>
21 </p><p>
22 <a href="glGet.xml"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_POINT_SIZE</code>
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23 </p><p>
24 <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>
25 </p><p>
26 <a href="glIsEnabled.xml"><span class="citerefentry"><span class="refentrytitle">glIsEnabled</span></span></a> with argument <code class="constant">GL_PROGRAM_POINT_SIZE</code>
27 </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p>
28 <a href="glEnable.xml"><span class="citerefentry"><span class="refentrytitle">glEnable</span></span></a>,
29 <a href="glPointParameter.xml"><span class="citerefentry"><span class="refentrytitle">glPointParameter</span></span></a>
30 </p></div><div class="refsect1" lang="en" xml:lang="en"><a id="Copyright"></a><h2>Copyright</h2><p>
31 Copyright <span class="trademark"></span>© 1991-2006
32 Silicon Graphics, Inc. This document is licensed under the SGI
33 Free Software B License. For details, see
34 <a href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>.
35 </p></div></div></body></html>