GL_SAMPLEMASKIN(3G)             [FIXME: manual]            GL_SAMPLEMASKIN(3G)

NAME
       gl_SampleMaskIn - contains the computed sample coverage mask for the
       current fragment

DECLARATION
       in int gl_SampleMaskIn[] ;.SH "DESCRIPTION"

       gl_SampleMaskIn is a fragment language that indicates the set of
       samples covered by the primitive generating the fragment during
       multisample rasterization. It has a sample bit set if and only if the
       sample is considered covered for this fragment shader invocation. Bit B
       of mask gl_SampleMask[M] corresponds to sample 32 * M + B. The array
       has ceil(s / 32) elements where s is the maximum number of color
       samples supported by the implementation.

VERSION SUPPORT

       +----------------+------------------------------------------------------------------------------------------+
       |                |                             OpenGL Shading Language Version                              |
       +----------------+------+------+------+------+------+------+------+------+------+------+------+------+------+
       |Variable Name   | 1.10 | 1.20 | 1.30 | 1.40 | 1.50 | 3.30 | 4.00 | 4.10 | 4.20 | 4.30 | 4.40 | 4.50 | 4.60 |
       +----------------+------+------+------+------+------+------+------+------+------+------+------+------+------+
       |gl_SampleMaskIn |  -   |  -   |  -   |  -   |  -   |  -   | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  | <?>  |
       +----------------+------+------+------+------+------+------+------+------+------+------+------+------+------+

SEE ALSO
       gl_SampleMask(), gl_SampleID(), gl_SamplePosition(), gl_FragCoord()

COPYRIGHT
       Copyright (C) 2011-2014 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.  https://opencontent.org/openpub/.

COPYRIGHT
       Copyright (C) 2011-2014 Khronos Group

[FIXME: source]                   03/14/2026               GL_SAMPLEMASKIN(3G)