<div class="refentry" lang="en" xml:lang="en"><a id="glBindTexture"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glBindTexture — bind a named texture to a texturing target</p></div><div class="refsynopsisdiv"><h2>C Specification</h2><div class="funcsynopsis"><table><tr><td><code class="funcdef">void <b class="fsfunc">glBindTexture</b>(</code></td><td>GLenum  </td><td><var class="pdparam">target</var>, </td></tr><tr><td> </td><td>GLuint  </td><td><var class="pdparam">texture</var><code>)</code>;</td></tr></table></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term"><em class="parameter"><code>target</code></em></span></dt><dd><p>

Specifies the target to which the texture is bound.

Must be either

<code class="constant">GL_TEXTURE_1D</code>,

<code class="constant">GL_TEXTURE_2D</code>,

<code class="constant">GL_TEXTURE_3D</code>, or

<code class="constant">GL_TEXTURE_CUBE_MAP</code>.

</p></dd><dt><span class="term"><em class="parameter"><code>texture</code></em></span></dt><dd><p>

Specifies the name of a texture.

</p></dd></dl></div></div><div class="refsect1" lang="en" xml:lang="en"><a id="description"></a><h2>Description</h2><p>

<code class="function">glBindTexture</code> lets you create or use a named texture. Calling <code class="function">glBindTexture</code> with

<em class="parameter"><code>target</code></em> set to

<code class="constant">GL_TEXTURE_1D</code>, <code class="constant">GL_TEXTURE_2D</code>, <code class="constant">GL_TEXTURE_3D</code> or

<code class="constant">GL_TEXTURE_CUBE_MAP</code> and <em class="parameter"><code>texture</code></em> set to the name

of the new texture binds the texture name to the target.

When a texture is bound to a target, the previous binding for that

target is automatically broken.

</p><p>

Texture names are unsigned integers. The value zero is reserved to

represent the default texture for each texture target.

Texture names and the corresponding texture contents are local to

the shared display-list space (see <a class="citerefentry" href="glXCreateContext"><span class="citerefentry"><span class="refentrytitle">glXCreateContext</span></span></a>) of the current

GL rendering context;

two rendering contexts share texture names only if they

also share display lists.

</p><p>

You may use <a class="citerefentry" href="glGenTextures"><span class="citerefentry"><span class="refentrytitle">glGenTextures</span></span></a> to generate a set of new texture names.

</p><p>

When a texture is first bound, it assumes the specified target:

A texture first bound to <code class="constant">GL_TEXTURE_1D</code> becomes one-dimensional texture, a

texture first bound to <code class="constant">GL_TEXTURE_2D</code> becomes two-dimensional texture, a

texture first bound to <code class="constant">GL_TEXTURE_3D</code> becomes three-dimensional texture, and a

texture first bound to <code class="constant">GL_TEXTURE_CUBE_MAP</code>

becomes a cube-mapped texture. The state of a one-dimensional texture

immediately after it is first bound is equivalent to the state of the

default <code class="constant">GL_TEXTURE_1D</code> at GL initialization, and similarly for two-

and three-dimensional textures and cube-mapped textures.

</p><p>

While a texture is bound, GL operations on the target to which it is

bound affect the bound texture, and queries of the target to which it

is bound return state from the bound texture. If texture mapping is active

on the target to which a texture is bound, the bound texture is used.

In effect, the texture targets become aliases for the textures currently

bound to them, and the texture name zero refers to the default textures

that were bound to them at initialization.

</p><p>

A texture binding created with <code class="function">glBindTexture</code> remains active until a different

texture is bound to the same target, or until the bound texture is

deleted with <a class="citerefentry" href="glDeleteTextures"><span class="citerefentry"><span class="refentrytitle">glDeleteTextures</span></span></a>.

</p><p>

Once created, a named texture may be re-bound to its same original target as often as needed.

It is usually much faster to use <code class="function">glBindTexture</code> to bind an existing named

texture to one of the texture targets than it is to reload the texture image

using <a class="citerefentry" href="glTexImage1D"><span class="citerefentry"><span class="refentrytitle">glTexImage1D</span></span></a>, <a class="citerefentry" href="glTexImage2D"><span class="citerefentry"><span class="refentrytitle">glTexImage2D</span></span></a>, or <a class="citerefentry" href="glTexImage3D"><span class="citerefentry"><span class="refentrytitle">glTexImage3D</span></span></a>.

For additional control over performance, use

<a class="citerefentry" href="glPrioritizeTextures"><span class="citerefentry"><span class="refentrytitle">glPrioritizeTextures</span></span></a>.

</p><p>

<code class="function">glBindTexture</code> is included in display lists.

</p></div><div class="refsect1" lang="en" xml:lang="en"><a id="notes"></a><h2>Notes</h2><p>

<code class="function">glBindTexture</code> is available only if the GL version is 1.1 or greater.

</p><p>

<code class="constant">GL_TEXTURE_CUBE_MAP</code> is available only if the GL version is 1.3 or greater.

</p></div><div class="refsect1" lang="en" xml:lang="en"><a id="errors"></a><h2>Errors</h2><p>

<code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>target</code></em> is not one of the allowable

values.

</p><p>

<code class="constant">GL_INVALID_OPERATION</code> is generated if <em class="parameter"><code>texture</code></em> was previously created with a target

that doesn't match that of <em class="parameter"><code>target</code></em>.

</p><p>

<code class="constant">GL_INVALID_OPERATION</code> is generated if <code class="function">glBindTexture</code> is executed

between the execution of <a class="citerefentry" href="glBegin"><span class="citerefentry"><span class="refentrytitle">glBegin</span></span></a> and the corresponding

execution of <a class="citerefentry" href="glEnd"><span class="citerefentry"><span class="refentrytitle">glEnd</span></span></a>.

</p></div><div class="refsect1" lang="en" xml:lang="en"><a id="associatedgets"></a><h2>Associated Gets</h2><p>

<a class="citerefentry" href="glGet"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_TEXTURE_BINDING_1D</code>

</p><p>

<a class="citerefentry" href="glGet"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_TEXTURE_BINDING_2D</code>

</p><p>

<a class="citerefentry" href="glGet"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a> with argument <code class="constant">GL_TEXTURE_BINDING_3D</code>

</p></div>

{$pipelinestall}{$examples}

<div class="refsect1" lang="en" xml:lang="en"><a id="seealso"></a><h2>See Also</h2><p>

<a class="citerefentry" href="glAreTexturesResident"><span class="citerefentry"><span class="refentrytitle">glAreTexturesResident</span></span></a>,

<a class="citerefentry" href="glDeleteTextures"><span class="citerefentry"><span class="refentrytitle">glDeleteTextures</span></span></a>,

<a class="citerefentry" href="glGenTextures"><span class="citerefentry"><span class="refentrytitle">glGenTextures</span></span></a>,

<a class="citerefentry" href="glGet"><span class="citerefentry"><span class="refentrytitle">glGet</span></span></a>,

<a class="citerefentry" href="glGetTexParameter"><span class="citerefentry"><span class="refentrytitle">glGetTexParameter</span></span></a>,

<a class="citerefentry" href="glIsTexture"><span class="citerefentry"><span class="refentrytitle">glIsTexture</span></span></a>,

<a class="citerefentry" href="glPrioritizeTextures"><span class="citerefentry"><span class="refentrytitle">glPrioritizeTextures</span></span></a>,

<a class="citerefentry" href="glTexImage1D"><span class="citerefentry"><span class="refentrytitle">glTexImage1D</span></span></a>,

<a class="citerefentry" href="glTexImage2D"><span class="citerefentry"><span class="refentrytitle">glTexImage2D</span></span></a>,

<a class="citerefentry" href="glTexParameter"><span class="citerefentry"><span class="refentrytitle">glTexParameter</span></span></a>

</p></div><div class="refsect1" lang="en" xml:lang="en"><div id="Copyright"><h2>Copyright</h2><p>

Copyright © 1991-2006

Silicon Graphics, Inc. This document is licensed under the SGI

Free Software B License. For details, see

<a class="ulink" href="https://web.archive.org/web/20171022161616/http://oss.sgi.com/projects/FreeB/" target="_top">https://web.archive.org/web/20171022161616/http://oss.sgi.com/projects/FreeB/</a>.

</p></div></div></div>