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.\"     Title: glActiveTexture
.\"    Author: [FIXME: author] [see http://docbook.sf.net/el/author]
.\" Generator: DocBook XSL Stylesheets v1.79.1 <http://docbook.sf.net/>
.\"      Date: 01/03/2018
.\"    Manual: [FIXME: manual]
.\"    Source: [FIXME: source]
.\"  Language: English
.\"
.TH "GLACTIVETEXTURE" "3G" "01/03/2018" "[FIXME: source]" "[FIXME: manual]"
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.SH "NAME"
glActiveTexture \- select active texture unit
.SH "C SPECIFICATION"
.HP \w'void\ glActiveTexture('u
.BI "void glActiveTexture(GLenum\ " "texture" ");"
.SH "PARAMETERS"
.PP
\fItexture\fR
.RS 4
Specifies which texture unit to make active\&. The number of texture units is implementation dependent, but must be at least 80\&.
\fItexture\fR
must be one of
\fBGL_TEXTURE\fR\fIi\fR, where
\fIi\fR
ranges from zero to the value of
\fBGL_MAX_COMBINED_TEXTURE_IMAGE_UNITS\fR
minus one\&. The initial value is
\fBGL_TEXTURE0\fR\&.
.RE
.SH "DESCRIPTION"
.PP
\fBglActiveTexture\fR
selects which texture unit subsequent texture state calls will affect\&. The number of texture units an implementation supports is implementation dependent, but must be at least 80\&.
.SH "ERRORS"
.PP
\fBGL_INVALID_ENUM\fR
is generated if
\fItexture\fR
is not one of
\fBGL_TEXTURE\fR\fIi\fR, where
\fIi\fR
ranges from zero to the value of
\fBGL_MAX_COMBINED_TEXTURE_IMAGE_UNITS\fR
minus one\&.
.SH "ASSOCIATED GETS"
.PP
\fBglGet\fR()
with argument
\fBGL_ACTIVE_TEXTURE\fR, or
\fBGL_MAX_COMBINED_TEXTURE_IMAGE_UNITS\fR\&.
.SH "VERSION SUPPORT"
.TS
allbox tab(:);
lB cB s s s s s s s s s s s
lB cB cB cB cB cB cB cB cB cB cB cB cB.
T{

T}:T{
\fBOpenGL Version\fR
T}
T{
\fBFunction / Feature Name\fR
T}:T{
\fB2\&.0\fR
T}:T{
\fB2\&.1\fR
T}:T{
\fB3\&.0\fR
T}:T{
\fB3\&.1\fR
T}:T{
\fB3\&.2\fR
T}:T{
\fB3\&.3\fR
T}:T{
\fB4\&.0\fR
T}:T{
\fB4\&.1\fR
T}:T{
\fB4\&.2\fR
T}:T{
\fB4\&.3\fR
T}:T{
\fB4\&.4\fR
T}:T{
\fB4\&.5\fR
T}
.T&
l c c c c c c c c c c c c.
T{
\fBglActiveTexture\fR
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}:T{
✔
T}
.TE
.sp 1
.SH "SEE ALSO"
.PP
\fBglGenTextures\fR(),
\fBglBindTexture\fR(),
\fBglCompressedTexImage1D\fR(),
\fBglCompressedTexImage2D\fR(),
\fBglCompressedTexImage3D\fR(),
\fBglCompressedTexSubImage1D\fR(),
\fBglCompressedTexSubImage2D\fR(),
\fBglCompressedTexSubImage3D\fR(),
\fBglCopyTexImage1D\fR(),
\fBglCopyTexImage2D\fR(),
\fBglCopyTexSubImage1D\fR(),
\fBglCopyTexSubImage2D\fR(),
\fBglCopyTexSubImage3D\fR(),
\fBglDeleteTextures\fR()
\fBglIsTexture\fR(),
\fBglTexImage1D\fR(),
\fBglTexImage2D\fR(),
\fBglTexImage2DMultisample\fR(),
\fBglTexImage3D\fR(),
\fBglTexImage3DMultisample\fR(),
\fBglTexSubImage1D\fR(),
\fBglTexSubImage2D\fR(),
\fBglTexSubImage3D\fR(),
\fBglTexParameter\fR(),
.SH "COPYRIGHT"
.PP
Copyright
\(co
1991\-2006 Silicon Graphics, Inc\&. Copyright
\(co
2010\-2014 Khronos Group\&. This document is licensed under the SGI Free Software B License\&. For details, see
\m[blue]\fBhttp://oss\&.sgi\&.com/projects/FreeB/\fR\m[]\&.
.SH "COPYRIGHT"
.br
Copyright \(co 1991-2006 Silicon Graphics, Inc.
.br
Copyright \(co 2010-2014 Khronos Group
.br