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<!DOCTYPE refentry [ <!ENTITY % mathent SYSTEM "math.ent"> %mathent; ]>
<!-- Converted by db4-upgrade version 1.1 -->
<refentry xmlns="http://docbook.org/ns/docbook" version="5.0" xml:id="textureSize">
<info>
<copyright>
<year>2011-2014</year>
<holder>Khronos Group</holder>
</copyright>
</info>
<refmeta>
<refentrytitle>textureSize</refentrytitle>
<manvolnum>3G</manvolnum>
</refmeta>
<refnamediv>
<refname>textureSize</refname>
<refpurpose>retrieve the dimensions of a level of a texture</refpurpose>
</refnamediv>
<refsynopsisdiv><title>Declaration</title>
<funcsynopsis>
<funcprototype>
<funcdef>int <function>textureSize</function></funcdef>
<paramdef>gsampler1D <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec2 <function>textureSize</function></funcdef>
<paramdef>gsampler2D <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec3 <function>textureSize</function></funcdef>
<paramdef>gsampler3D <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec2 <function>textureSize</function></funcdef>
<paramdef>gsamplerCube <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>int <function>textureSize</function></funcdef>
<paramdef>sampler1DShadow <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec2 <function>textureSize</function></funcdef>
<paramdef>sampler2DShadow <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec2 <function>textureSize</function></funcdef>
<paramdef>samplerCubeShadow <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec3 <function>textureSize</function></funcdef>
<paramdef>samplerCubeArray <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec3 <function>textureSize</function></funcdef>
<paramdef>samplerCubeArrayShadow <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec2 <function>textureSize</function></funcdef>
<paramdef>gsamplerRect <parameter>sampler</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec2 <function>textureSize</function></funcdef>
<paramdef>gsamplerRectShadow <parameter>sampler</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec2 <function>textureSize</function></funcdef>
<paramdef>gsampler1DArray <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec3 <function>textureSize</function></funcdef>
<paramdef>gsampler2DArray <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype> <funcprototype>
<funcdef>ivec2 <function>textureSize</function></funcdef>
<paramdef>sampler1DArrayShadow <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec3 <function>textureSize</function></funcdef>
<paramdef>sampler2DArrayShadow <parameter>sampler</parameter></paramdef>
<paramdef>int <parameter>lod</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>int <function>textureSize</function></funcdef>
<paramdef>gsamplerBuffer <parameter>sampler</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec2 <function>textureSize</function></funcdef>
<paramdef>gsampler2DMS <parameter>sampler</parameter></paramdef>
</funcprototype>
<funcprototype>
<funcdef>ivec3 <function>textureSize</function></funcdef>
<paramdef>gsampler2DMSArray <parameter>sampler</parameter></paramdef>
</funcprototype>
</funcsynopsis>
</refsynopsisdiv>
<refsect1 xml:id="parameters"><title>Parameters</title>
<variablelist>
<varlistentry>
<term><parameter>sampler</parameter></term>
<listitem>
<para>
Specifies the sampler to which the texture whose dimensions to retrieve is bound.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><parameter>lod</parameter></term>
<listitem>
<para>
Specifies the level of the texture for which to retrieve the dimensions.
</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1 xml:id="description"><title>Description</title>
<para>
<function>textureSize</function> returns the dimensions of level <parameter>lod</parameter> (if present)
of the texture bound to <parameter>sampler</parameter>. The components in the return value are filled in,
in order, with the width, height and depth of the texture. For the array forms, the last component of the
return value is the number of layers in the texture array.
</para>
</refsect1>
<refsect1 xml:id="versions"><title>Version Support</title>
<informaltable>
<tgroup cols="13" align="left">
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="funchead.xml" xpointer="xpointer(/*/*)"/>
<tbody>
<row>
<entry>textureSize</entry>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="version.xml" xpointer="xpointer(/*/*[@role='13']/*)"/>
</row>
<row>
<entry>textureSize (samplerBuffer, samplerRect{Shadow})</entry>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="version.xml" xpointer="xpointer(/*/*[@role='14']/*)"/>
</row>
<row>
<entry>textureSize (samplerCube{Shadow})</entry>
<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="version.xml" xpointer="xpointer(/*/*[@role='40']/*)"/>
</row>
</tbody>
</tgroup>
</informaltable>
</refsect1>
<refsect1 xml:id="seealso"><title>See Also</title>
<para>
<citerefentry><refentrytitle>texelFetch</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>texelFetchOffset</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>texture</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureGather</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureGatherOffset</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureGatherOffsets</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureGrad</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureGradOffset</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureLod</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureLodOffset</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureOffset</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureProj</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureProjGrad</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureProjGradOffset</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureProjLod</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureProjLodOffset</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureProjOffset</refentrytitle></citerefentry>,
<citerefentry><refentrytitle>textureQueryLod</refentrytitle></citerefentry>
</para>
</refsect1>
<refsect1 xml:id="Copyright"><title>Copyright</title>
<para>
Copyright <trademark class="copyright"/> 2011-2014 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.
<link xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://opencontent.org/openpub/">http://opencontent.org/openpub/</link>.
</para>
</refsect1>
</refentry>
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