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"text/css" href=
"opengl-man.css" /><title>glPointSize
</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>
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>
22 <a href=
"glGet.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGet
</span></span></a> with argument
<code class=
"constant">GL_POINT_SIZE
</code>
24 <a href=
"glGet.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGet
</span></span></a> with argument
<code class=
"constant">GL_POINT_SIZE_MIN
</code>
26 <a href=
"glGet.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glGet
</span></span></a> with argument
<code class=
"constant">GL_POINT_SIZE_MAX
</code>
28 <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>
30 <a href=
"glIsEnabled.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glIsEnabled
</span></span></a> with argument
<code class=
"constant">GL_PROGRAM_POINT_SIZE
</code>
31 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"seealso"></a><h2>See Also
</h2><p>
32 <a href=
"glEnable.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glEnable
</span></span></a>,
33 <a href=
"glPointParameter.xml"><span class=
"citerefentry"><span class=
"refentrytitle">glPointParameter
</span></span></a>
34 </p></div><div class=
"refsect1" lang=
"en" xml:
lang=
"en"><a id=
"Copyright"></a><h2>Copyright
</h2><p>
35 Copyright
<span class=
"trademark"></span>©
1991-
2006
36 Silicon Graphics, Inc. This document is licensed under the SGI
37 Free Software B License. For details, see
38 <a href=
"http://oss.sgi.com/projects/FreeB/" target=
"_top">http://oss.sgi.com/projects/FreeB/
</a>.
39 </p></div></div></body></html>