mirror of
https://github.com/Ryujinx/Opentk.git
synced 2024-12-27 01:25:53 +00:00
96 lines
4.2 KiB
XML
96 lines
4.2 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="glPassThrough">
|
||
|
|
<refmeta>
|
||
|
|
<refmetainfo>
|
||
|
|
<copyright>
|
||
|
|
<year>1991-2006</year>
|
||
|
|
<holder>Silicon Graphics, Inc.</holder>
|
||
|
|
</copyright>
|
||
|
|
</refmetainfo>
|
||
|
|
<refentrytitle>glPassThrough</refentrytitle>
|
||
|
|
<manvolnum>3G</manvolnum>
|
||
|
|
</refmeta>
|
||
|
|
<refnamediv>
|
||
|
|
<refname>glPassThrough</refname>
|
||
|
|
<refpurpose>place a marker in the feedback buffer</refpurpose>
|
||
|
|
</refnamediv>
|
||
|
|
<refsynopsisdiv><title>C Specification</title>
|
||
|
|
<funcsynopsis>
|
||
|
|
<funcprototype>
|
||
|
|
<funcdef>void <function>glPassThrough</function></funcdef>
|
||
|
|
<paramdef>GLfloat <parameter>token</parameter></paramdef>
|
||
|
|
</funcprototype>
|
||
|
|
</funcsynopsis>
|
||
|
|
</refsynopsisdiv>
|
||
|
|
<refsect1 id="parameters"><title>Parameters</title>
|
||
|
|
<variablelist>
|
||
|
|
<varlistentry>
|
||
|
|
<term><parameter>token</parameter></term>
|
||
|
|
<listitem>
|
||
|
|
<para>
|
||
|
|
Specifies a marker value to be placed in the feedback buffer
|
||
|
|
following a <constant>GL_PASS_THROUGH_TOKEN</constant>.
|
||
|
|
</para>
|
||
|
|
</listitem>
|
||
|
|
</varlistentry>
|
||
|
|
</variablelist>
|
||
|
|
</refsect1>
|
||
|
|
<refsect1 id="description"><title>Description</title>
|
||
|
|
<para>
|
||
|
|
</para>
|
||
|
|
<para>
|
||
|
|
Feedback is a GL render mode.
|
||
|
|
The mode is selected by calling
|
||
|
|
<citerefentry><refentrytitle>glRenderMode</refentrytitle></citerefentry> with <constant>GL_FEEDBACK</constant>.
|
||
|
|
When the GL is in feedback mode,
|
||
|
|
no pixels are produced by rasterization.
|
||
|
|
Instead,
|
||
|
|
information about primitives that would have been rasterized
|
||
|
|
is fed back to the application using the GL.
|
||
|
|
See the <citerefentry><refentrytitle>glFeedbackBuffer</refentrytitle></citerefentry> reference page for a description of the
|
||
|
|
feedback buffer and the values in it.
|
||
|
|
</para>
|
||
|
|
<para>
|
||
|
|
<function>glPassThrough</function> inserts a user-defined marker in the feedback buffer
|
||
|
|
when it is executed in feedback mode.
|
||
|
|
<parameter>token</parameter> is returned as if it were a primitive;
|
||
|
|
it is indicated with its own unique identifying value:
|
||
|
|
<constant>GL_PASS_THROUGH_TOKEN</constant>.
|
||
|
|
The order of <function>glPassThrough</function> commands with respect to the specification
|
||
|
|
of graphics primitives is maintained.
|
||
|
|
</para>
|
||
|
|
</refsect1>
|
||
|
|
<refsect1 id="notes"><title>Notes</title>
|
||
|
|
<para>
|
||
|
|
<function>glPassThrough</function> is ignored if the GL is not in feedback mode.
|
||
|
|
</para>
|
||
|
|
</refsect1>
|
||
|
|
<refsect1 id="errors"><title>Errors</title>
|
||
|
|
<para>
|
||
|
|
<constant>GL_INVALID_OPERATION</constant> is generated if <function>glPassThrough</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_RENDER_MODE</constant>
|
||
|
|
</para>
|
||
|
|
</refsect1>
|
||
|
|
<refsect1 id="seealso"><title>See Also</title>
|
||
|
|
<para>
|
||
|
|
<citerefentry><refentrytitle>glFeedbackBuffer</refentrytitle></citerefentry>,
|
||
|
|
<citerefentry><refentrytitle>glRenderMode</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>
|