redhat man page for glactivetexturearb

GLACTIVETEXTUREARB(3G)													    GLACTIVETEXTUREARB(3G)

NAME
       glActiveTextureARB - select active texture unit

C SPECIFICATION
       void glActiveTextureARB( 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_TEXTUREi_ARB, where 0 <= i < GL_MAX_TEXTURE_UNITS_ARB, which is an implementation-dependent value.   The
		intial value is GL_TEXTURE0_ARB.

DESCRIPTION
       glActiveTextureARB  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 2.

       Vertex arrays are client-side GL resources, which are selected by the glClientActiveTextureARB routine.

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

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

SEE ALSO
       glClientActiveTextureARB(3G), glGetIntegerv(3G), glMultiTexCoordARB(3G), glTexParameter(3G)

															    GLACTIVETEXTUREARB(3G)