mirror of
https://github.com/Ryujinx/Opentk.git
synced 2024-12-25 14:25:39 +00:00
91 lines
3.9 KiB
XML
91 lines
3.9 KiB
XML
<?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="glClearAccum">
|
|
<refmeta>
|
|
<refmetainfo>
|
|
<copyright>
|
|
<year>1991-2006</year>
|
|
<holder>Silicon Graphics, Inc.</holder>
|
|
</copyright>
|
|
</refmetainfo>
|
|
<refentrytitle>glClearAccum</refentrytitle>
|
|
<manvolnum>3G</manvolnum>
|
|
</refmeta>
|
|
<refnamediv>
|
|
<refname>glClearAccum</refname>
|
|
<refpurpose>specify clear values for the accumulation buffer</refpurpose>
|
|
</refnamediv>
|
|
<refsynopsisdiv><title>C Specification</title>
|
|
<funcsynopsis>
|
|
<funcprototype>
|
|
<funcdef>void <function>glClearAccum</function></funcdef>
|
|
<paramdef>GLfloat <parameter>red</parameter></paramdef>
|
|
<paramdef>GLfloat <parameter>green</parameter></paramdef>
|
|
<paramdef>GLfloat <parameter>blue</parameter></paramdef>
|
|
<paramdef>GLfloat <parameter>alpha</parameter></paramdef>
|
|
</funcprototype>
|
|
</funcsynopsis>
|
|
</refsynopsisdiv>
|
|
<refsect1 id="parameters"><title>Parameters</title>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><parameter>red</parameter></term>
|
|
<term><parameter>green</parameter></term>
|
|
<term><parameter>blue</parameter></term>
|
|
<term><parameter>alpha</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specify the red, green, blue, and alpha values used when the
|
|
accumulation buffer is cleared.
|
|
The initial values are all 0.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
<refsect1 id="description"><title>Description</title>
|
|
<para>
|
|
<function>glClearAccum</function> specifies the red, green, blue, and alpha values used by <citerefentry><refentrytitle>glClear</refentrytitle></citerefentry>
|
|
to clear the accumulation buffer.
|
|
</para>
|
|
<para>
|
|
Values specified by <function>glClearAccum</function> are clamped to the
|
|
range
|
|
<inlineequation><mml:math>
|
|
<!-- eqn: [-1,1]:-->
|
|
<mml:mfenced open="[" close="]">
|
|
<mml:mn>-1</mml:mn>
|
|
<mml:mn>1</mml:mn>
|
|
</mml:mfenced>
|
|
</mml:math></inlineequation>.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 id="errors"><title>Errors</title>
|
|
<para>
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if <function>glClearAccum</function>
|
|
is executed between the execution of <citerefentry><refentrytitle>glBegin</refentrytitle></citerefentry>
|
|
and the corresponding execution of <citerefentry><refentrytitle>glEnd</refentrytitle></citerefentry>.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 id="associatedgets"><title>Associated Gets</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>glGet</refentrytitle></citerefentry> with argument <constant>GL_ACCUM_CLEAR_VALUE</constant>
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 id="seealso"><title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>glAccum</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glClear</refentrytitle></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 id="Copyright"><title>Copyright</title>
|
|
<para>
|
|
Copyright <trademark class="copyright"></trademark> 1991-2006
|
|
Silicon Graphics, Inc. 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>
|