glClientActiveTextureARB.3G man page

glClientActiveTextureARB — select active texture unit

C Specification

void glClientActiveTextureARB( GLenum 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_TEXTUREi_ARB where 0 ≤ i < GL_MAX_TEXTURE_UNITS_ARB, which is an implementation-dependent value.  The initial value is  GL_TEXTURE0_ARB.


glClientActiveTextureARB 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.


glClientActiveTextureARB is supported only if GL_ARB_multitexture is included in the string returned by glGetString when called with the argument GL_EXTENSIONS.

glClientActiveTextureARB sets GL_CLIENT_ACTIVE_TEXTURE_ARB to the active texture unit.


GL_INVALID_ENUM is generated if texture is not one of GL_TEXTUREi_ARB, where 0 ≤ i < GL_MAX_TEXTURE_UNITS_ARB.

See Also

glActiveTextureARB(3G), glDisableClientState(3G), glEnableClientState(3G), glMultiTexCoordARB(3G), glTexCoordPointer(3G)