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[clinton/guile-figl.git] / upstream-doc / man4 / glFramebufferTextureLayer.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="glFramebufferTextureLayer">
    <refmeta>
        <refmetainfo>
            <copyright>
                <year>2010</year>
                <holder>Khronos Group</holder>
            </copyright>
        </refmetainfo>
        <refentrytitle>glFramebufferTextureLayer</refentrytitle>
        <manvolnum>3G</manvolnum>
    </refmeta>
    <refnamediv>
        <refname>glFramebufferTextureLayer</refname>
        <refpurpose>attach a single layer of a texture to a framebuffer</refpurpose>
    </refnamediv>
    <refsynopsisdiv><title>C Specification</title>
        <funcsynopsis>
            <funcprototype>
                <funcdef>void <function>glFramebufferTextureLayer</function></funcdef>
                <paramdef>GLenum <parameter>target</parameter></paramdef>
                <paramdef>GLenum <parameter>attachment</parameter></paramdef>
                <paramdef>GLuint <parameter>texture</parameter></paramdef>
                <paramdef>GLint <parameter>level</parameter></paramdef>
                <paramdef>GLint <parameter>layer</parameter></paramdef>
            </funcprototype>
        </funcsynopsis>
    </refsynopsisdiv>
    <!-- eqn: ignoring delim $$ -->
    <refsect1 id="parameters"><title>Parameters</title>
        <variablelist>
        <varlistentry>
            <term><parameter>target</parameter></term>
            <listitem>
                <para>
                    Specifies the framebuffer target. <parameter>target</parameter> must be <constant>GL_DRAW_FRAMEBUFFER</constant>,
                    <constant>GL_READ_FRAMEBUFFER</constant>, or <constant>GL_FRAMEBUFFER</constant>. <constant>GL_FRAMEBUFFER</constant>
                    is equivalent to <constant>GL_DRAW_FRAMEBUFFER</constant>.
                </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>attachment</parameter></term>
            <listitem>
                <para>
                    Specifies the attachment point of the framebuffer. <parameter>attachment</parameter> must be
                    <constant>GL_COLOR_ATTACHMENT<emphasis>i</emphasis></constant>, <constant>GL_DEPTH_ATTACHMENT</constant>,
                    <constant>GL_STENCIL_ATTACHMENT</constant> or <constant>GL_DEPTH_STENCIL_ATTACHMENT</constant>.
                </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>texture</parameter></term>
            <listitem>
                <para>
                    Specifies the texture object to attach to the framebuffer attachment point named by <parameter>attachment</parameter>.
                </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>level</parameter></term>
            <listitem>
                <para>
                    Specifies the mipmap level of <parameter>texture</parameter> to attach.
                </para>
            </listitem>
        </varlistentry>
        <varlistentry>
            <term><parameter>layer</parameter></term>
            <listitem>
                <para>
                    Specifies the layer of <parameter>texture</parameter> to attach.
                </para>
            </listitem>
        </varlistentry>
        </variablelist>
    </refsect1>
    <refsect1 id="description"><title>Description</title>
        <para>
            <function>glFramebufferTextureLayer</function> operates like <citerefentry><refentrytitle>glFramebufferTexture</refentrytitle></citerefentry>,
            except that only a single layer of the texture level, given by <parameter>layer</parameter>, is attached to the attachment point.
            If <parameter>texture</parameter> is not zero, <parameter>layer</parameter> must be greater than or equal to zero.
            <parameter>texture</parameter> must either be zero or the name of an existing three-dimensional texture, one- or two-dimensional array texture,
            or multisample array texture.
        </para>
    </refsect1>
    <refsect1 id="errors"><title>Errors</title>
        <para>
            <constant>GL_INVALID_ENUM</constant> is generated if <parameter>target</parameter> is not one of the accepted tokens.
        </para>
        <para>
            <constant>GL_INVALID_ENUM</constant> is generated if <parameter>attachment</parameter> is not one of the accepted tokens.
        </para>
        <para>
            <constant>GL_INVALID_VALUE</constant> is generated if <parameter>texture</parameter> is not zero or the name of an existing
            texture object.
        </para>
        <para>
            <constant>GL_INVALID_VALUE</constant> is generated if <parameter>texture</parameter> is not zero and <parameter>layer</parameter>
            is negative.
        </para>
        <para>
            <constant>GL_INVALID_OPERATION</constant> is generated if zero is bound to <parameter>target</parameter>.
        </para>
        <para>
            <constant>GL_INVALID_OPERATION</constant> is generated if <parameter>texture</parameter> is not zero or the name of an existing cube map texture.
        </para>
    </refsect1>
    <refsect1 id="seealso"><title>See Also</title>
        <para>
            <citerefentry><refentrytitle>glGenFramebuffers</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glBindFramebuffer</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glGenRenderbuffers</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glFramebufferTexture</refentrytitle></citerefentry>,
            <citerefentry><refentrytitle>glFramebufferTextureFace</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>