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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                                            │
       ├────────────────┼──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┬──────┤
       │Variable1.101.201.301.401.503.304.004.104.204.304.404.50 │
       │Name            │      │      │      │      │      │      │      │      │      │      │      │      │
       ├────────────────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┼──────┤
       │gl_SampleMaskIn │  -   │  -   │  -   │  -   │  -   │  -   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │  ✔   │
       └────────────────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┴──────┘

SEE ALSO

       gl_SampleMask(), gl_SampleID(), gl_SamplePosition(), gl_FragCoord()

COPYRIGHT

       Copyright © 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.
       http://opencontent.org/openpub/.

COPYRIGHT

       Copyright © 2011-2014 Khronos Group

[FIXME: source]                             01/03/2018                        GL_SAMPLEMASKIN(3G)