110 lines
5.5 KiB
XML
110 lines
5.5 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="glUniformBlockBinding">
|
|
<refmeta>
|
|
<refmetainfo>
|
|
<copyright>
|
|
<year>2010</year>
|
|
<holder>Khronos Group</holder>
|
|
</copyright>
|
|
</refmetainfo>
|
|
<refentrytitle>glUniformBlockBinding</refentrytitle>
|
|
<manvolnum>3G</manvolnum>
|
|
</refmeta>
|
|
<refnamediv>
|
|
<refname>glUniformBlockBinding</refname>
|
|
<refpurpose>assign a binding point to an active uniform block</refpurpose>
|
|
</refnamediv>
|
|
<refsynopsisdiv><title>C Specification</title>
|
|
<funcsynopsis>
|
|
<funcprototype>
|
|
<funcdef>void <function>glUniformBlockBinding</function></funcdef>
|
|
<paramdef>GLuint <parameter>program</parameter></paramdef>
|
|
<paramdef>GLuint <parameter>uniformBlockIndex</parameter></paramdef>
|
|
<paramdef>GLuint <parameter>uniformBlockBinding</parameter></paramdef>
|
|
</funcprototype>
|
|
</funcsynopsis>
|
|
</refsynopsisdiv>
|
|
<refsect1 id="parameters"><title>Parameters</title>
|
|
<variablelist>
|
|
<varlistentry>
|
|
<term><parameter>program</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The name of a program object containing the active uniform block whose binding to assign.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>uniformBlockIndex</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
The index of the active uniform block within <parameter>program</parameter> whose binding to assign.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
<varlistentry>
|
|
<term><parameter>uniformBlockBinding</parameter></term>
|
|
<listitem>
|
|
<para>
|
|
Specifies the binding point to which to bind the uniform block with index <parameter>uniformBlockIndex</parameter> within <parameter>program</parameter>.
|
|
</para>
|
|
</listitem>
|
|
</varlistentry>
|
|
</variablelist>
|
|
</refsect1>
|
|
<refsect1 id="description"><title>Description</title>
|
|
<para>
|
|
Binding points for active uniform blocks are assigned using <function>glUniformBlockBinding</function>. Each of a program's active uniform
|
|
blocks has a corresponding uniform buffer binding point. <parameter>program</parameter> is the name of a program object for which the command
|
|
<citerefentry><refentrytitle>glLinkProgram</refentrytitle></citerefentry> has been issued in the past.
|
|
</para>
|
|
<para>
|
|
If successful, <function>glUniformBlockBinding</function> specifies that <parameter>program</parameter> will use the data store of the
|
|
buffer object bound to the binding point <parameter>uniformBlockBinding</parameter> to extract the values of the uniforms in the
|
|
uniform block identified by <parameter>uniformBlockIndex</parameter>.
|
|
</para>
|
|
<para>
|
|
When a program object is linked or re-linked, the uniform buffer object binding point assigned to each of its active uniform blocks is reset to zero.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 id="errors"><title>Errors</title>
|
|
<para>
|
|
<constant>GL_INVALID_VALUE</constant> is generated if <parameter>uniformBlockIndex</parameter> is not an active uniform block index of <parameter>program</parameter>.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_VALUE</constant> is generated if <parameter>uniformBlockBinding</parameter> is greater than or equal to the value of <constant>GL_MAX_UNIFORM_BUFFER_BINDINGS</constant>.
|
|
</para>
|
|
<para>
|
|
<constant>GL_INVALID_VALUE</constant> is generated <parameter>program</parameter> is not the name of a program object generated by the GL.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 id="notes"><title>Notes</title>
|
|
<para>
|
|
<function>glUniformBlockBinding</function> is available only if the GL version is 3.1 or greater.
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 id="associatedgets"><title>Associated Gets</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>glGetActiveUniformBlock</refentrytitle></citerefentry> with argument <constant>GL_UNIFORM_BLOCK_BINDING</constant>
|
|
</para>
|
|
</refsect1>
|
|
<refsect1 id="seealso"><title>See Also</title>
|
|
<para>
|
|
<citerefentry><refentrytitle>glLinkProgram</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glBindBufferBase</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glBindBufferRange</refentrytitle></citerefentry>,
|
|
<citerefentry><refentrytitle>glGetActiveUniformBlock</refentrytitle></citerefentry>
|
|
</para>
|
|
</refsect1>
|
|
|
|
<refsect1 id="Copyright"><title>Copyright</title>
|
|
<para>
|
|
Copyright <trademark class="copyright"></trademark> 2010 Khronos Group.
|
|
This material may be distributed subject to the terms and conditions set forth in
|
|
the Open Publication License, v 1.0, 8 June 1999.
|
|
<ulink url="http://opencontent.org/openpub/">http://opencontent.org/openpub/</ulink>.
|
|
</para>
|
|
</refsect1>
|
|
</refentry>
|