glEnableVertexAttribArray
3G
glEnableVertexAttribArray

# glEnableVertexAttribArray

# glDisableVertexAttribArray

Enable or disable a generic vertex attribute array

## C Specification

    		void glEnableVertexAttribArray
    		GLuint index

    		void glDisableVertexAttribArray
    		GLuint index

## Parameters

`index`

  Specifies the index of the generic vertex attribute to be enabled or disabled.

## Description

`glEnableVertexAttribArray` enables the generic vertex attribute array specified by `index`. `glDisableVertexAttribArray` disables the generic vertex attribute array specified by `index`. By default, all client-side capabilities are disabled, including all generic vertex attribute arrays. If enabled, the values in the generic vertex attribute array will be accessed and used for rendering when calls are made to vertex array commands such as glDrawArrays, glDrawElements, glDrawRangeElements, glArrayElement, glMultiDrawElements, or glMultiDrawArrays.

## Notes

`glEnableVertexAttribArray` and `glDisableVertexAttribArray` are available only if the GL version is 2.0 or greater.

## Errors

`GL_INVALID_VALUE` is generated if `index` is greater than or equal to `GL_MAX_VERTEX_ATTRIBS`.

`GL_INVALID_OPERATION` is generated if either `glEnableVertexAttribArray` or `glDisableVertexAttribArray` is executed between the execution of glBegin and the corresponding execution of glEnd.

## Associated Gets

glGet with argument `GL_MAX_VERTEX_ATTRIBS`

glGetVertexAttrib with arguments `index` and `GL_VERTEX_ATTRIB_ARRAY_ENABLED` ``

glGetVertexAttribPointerv with arguments `index` and `GL_VERTEX_ATTRIB_ARRAY_POINTER`

## See Also

glArrayElement, glBindAttribLocation, glDrawArrays, glDrawElements, glDrawRangeElements, glMultiDrawElements, glPopClientAttrib, glPushClientAttrib, glVertexAttrib, glVertexAttribPointer

## Copyright

Copyright 2003-2005 3Dlabs Inc. Ltd. This material may be distributed subject to the terms and conditions set forth in the Open Publication License, v 1.0, 8 June 1999. http://opencontent.org/openpub/.