2003-2004 Silicon Graphics, Inc.
glClientActiveTexture 3G
glClientActiveTexture select client-side active texture unit

## C Specification

void `glClientActiveTexture` GLenum texture

## Parameters

texture

  Specifies which texture unit to make active. The number of texture units is implementation dependent, but must be at least two. texture must be one of `GL_TEXTURE` i, 0 <= i < GL_MAX_TEXTURE_UNITS , which is an implementation-dependent value. The initial value is `GL_TEXTURE0`.

## Description

`glClientActiveTexture` selects the vertex array client state parameters to be modified by glTexCoordPointer, and enabled or disabled with glEnableClientState or glDisableClientState, respectively, when called with a parameter of `GL_TEXTURE_COORD_ARRAY`.

## Errors

`GL_INVALID_ENUM` is generated if texture is not one of `GL_TEXTURE` i, where 0 <= i < GL_MAX_TEXTURE_UNITS .

## Notes

It is always the case that GL_TEXTURE i = GL_TEXTURE0+i .

## Associated Gets

glGet with argument `GL_CLIENT_ACTIVE_TEXTURE` or `GL_MAX_TEXTURE_UNITS`

## See Also

glActiveTexture, glEnableClientState, glGet, glMultiTexCoord, glTexCoordPointer

## Copyright

Copyright 2003-2004 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.