+++ /dev/null
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook MathML Module V1.1b1//EN"
- "http://www.oasis-open.org/docbook/xml/mathml/1.1CR1/dbmathml.dtd">
-<refentry id="glPointParameter">
- <refmeta>
- <refmetainfo>
- <copyright>
- <year>1991-2006</year>
- <holder>Silicon Graphics, Inc.</holder>
- </copyright>
- </refmetainfo>
- <refentrytitle>glPointParameter</refentrytitle>
- <manvolnum>3G</manvolnum>
- </refmeta>
- <refnamediv>
- <refname>glPointParameter</refname>
- <refpurpose>specify point parameters</refpurpose>
- </refnamediv>
- <refsynopsisdiv><title>C Specification</title>
- <funcsynopsis>
- <funcprototype>
- <funcdef>void <function>glPointParameterf</function></funcdef>
- <paramdef>GLenum <parameter>pname</parameter></paramdef>
- <paramdef>GLfloat <parameter>param</parameter></paramdef>
- </funcprototype>
- </funcsynopsis>
- <para></para>
- <funcsynopsis>
- <funcprototype>
- <funcdef>void <function>glPointParameteri</function></funcdef>
- <paramdef>GLenum <parameter>pname</parameter></paramdef>
- <paramdef>GLint <parameter>param</parameter></paramdef>
- </funcprototype>
- </funcsynopsis>
- </refsynopsisdiv>
- <!-- eqn: ignoring delim $$ -->
- <refsect1 id="parameters"><title>Parameters</title>
- <variablelist>
- <varlistentry>
- <term><parameter>pname</parameter></term>
- <listitem>
- <para>
- Specifies a single-valued point parameter.
- <constant>GL_POINT_FADE_THRESHOLD_SIZE</constant>, and
- <constant>GL_POINT_SPRITE_COORD_ORIGIN</constant>
- are accepted.
- </para>
- </listitem>
- </varlistentry>
- <varlistentry>
- <term><parameter>param</parameter></term>
- <listitem>
- <para>
- Specifies the value that <parameter>pname</parameter> will be set to.
- </para>
- </listitem>
- </varlistentry>
- </variablelist>
- </refsect1>
- <refsynopsisdiv><title>C Specification</title>
- <funcsynopsis>
- <funcprototype>
- <funcdef>void <function>glPointParameterfv</function></funcdef>
- <paramdef>GLenum <parameter>pname</parameter></paramdef>
- <paramdef>const GLfloat * <parameter>params</parameter></paramdef>
- </funcprototype>
- </funcsynopsis>
- <para></para>
- <funcsynopsis>
- <funcprototype>
- <funcdef>void <function>glPointParameteriv</function></funcdef>
- <paramdef>GLenum <parameter>pname</parameter></paramdef>
- <paramdef>const GLint * <parameter>params</parameter></paramdef>
- </funcprototype>
- </funcsynopsis>
- </refsynopsisdiv>
- <refsect1 id="parameters2"><title>Parameters</title>
- <variablelist>
- <varlistentry>
- <term><parameter>pname</parameter></term>
- <listitem>
- <para>
- Specifies a point parameter.
- <constant>GL_POINT_FADE_THRESHOLD_SIZE</constant>, and
- <constant>GL_POINT_SPRITE_COORD_ORIGIN</constant>
- are accepted.
- </para>
- </listitem>
- </varlistentry>
- <varlistentry>
- <term><parameter>params</parameter></term>
- <listitem>
- <para>
- Specifies the value to be assigned to <parameter>pname</parameter>..
- </para>
- </listitem>
- </varlistentry>
- </variablelist>
- </refsect1>
- <refsect1 id="description"><title>Description</title>
- <para>
- The following values are accepted for <parameter>pname</parameter>:
- </para>
- <variablelist>
- <varlistentry>
- <term><constant>GL_POINT_FADE_THRESHOLD_SIZE</constant></term>
- <listitem>
- <para>
- </para>
- <para>
- <parameter>params</parameter> 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.
- </para>
- </listitem>
- </varlistentry>
- <varlistentry>
- <term><constant>GL_POINT_SPRITE_COORD_ORIGIN</constant></term>
- <listitem>
- <para>
- </para>
- <para>
- <parameter>params</parameter> is a single enum specifying the point sprite texture coordinate origin, either <constant>GL_LOWER_LEFT</constant> or <constant>GL_UPPER_LEFT</constant>.
- The default value is <constant>GL_UPPER_LEFT</constant>.
- </para>
- </listitem>
- </varlistentry>
- </variablelist>
- </refsect1>
- <refsect1 id="errors"><title>Errors</title>
- <para>
- <constant>GL_INVALID_VALUE</constant> is generated if the value specified for
- <constant>GL_POINT_FADE_THRESHOLD_SIZE</constant> is less than zero.
- </para>
- <para>
- <constant>GL_INVALID_ENUM</constant> is generated If the value specified for
- <constant>GL_POINT_SPRITE_COORD_ORIGIN</constant> is not <constant>GL_LOWER_LEFT</constant> or <constant>GL_UPPER_LEFT</constant>.
- </para>
- </refsect1>
- <refsect1 id="associatedgets"><title>Associated Gets</title>
- <para>
- <citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with argument <constant>GL_POINT_FADE_THRESHOLD_SIZE</constant>
- </para>
- <para>
- <citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with argument <constant>GL_POINT_SPRITE_COORD_ORIGIN</constant>
- </para>
- </refsect1>
- <refsect1 id="seealso"><title>See Also</title>
- <para>
- <citerefentry><refentrytitle>glPointSize</refentrytitle></citerefentry>
- </para>
- </refsect1>
- <refsect1 id="Copyright"><title>Copyright</title>
- <para>
- Copyright <trademark class="copyright"></trademark> 1991-2006
- Silicon Graphics, Inc. Copyright <trademark class="copyright"></trademark> 2010
- Khronos Group. This document is licensed under the SGI
- Free Software B License. For details, see
- <ulink url="http://oss.sgi.com/projects/FreeB/">http://oss.sgi.com/projects/FreeB/</ulink>.
- </para>
- </refsect1>
-</refentry>