2010-2013
Khronos Group
glSampleMaski
3G

# glSampleMaski

set the value of a sub-word of the sample mask

## C Specification

                    void glSampleMaski
                    GLuint maskNumber
                    GLbitfield mask

## Parameters

`maskNumber`

  Specifies which 32-bit sub-word of the sample mask to update.

`mask`

  Specifies the new value of the mask sub-word.

## Description

`glSampleMaski` sets one 32-bit sub-word of the multi-word sample mask, `GL_SAMPLE_MASK_VALUE`.

`maskIndex` specifies which 32-bit sub-word of the sample mask to update, and `mask` specifies the new value to use for that sub-word. `maskIndex` must be less than the value of `GL_MAX_SAMPLE_MASK_WORDS`. Bit B of mask word M corresponds to sample 32 x M + B.

## Notes

`glSampleMaski` is available only if the GL version is 3.2 or greater, or if the `ARB_texture_multisample` extension is supported.

## Errors

`GL_INVALID_VALUE` is generated if `maskIndex` is greater than or equal to the value of `GL_MAX_SAMPLE_MASK_WORDS`.

## See Also

glGenRenderbuffers, glBindRenderbuffer, glRenderbufferStorageMultisample, glFramebufferRenderbuffer, glDeleteRenderbuffers

## Copyright

Copyright 2010-2013 Khronos Group. 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/.