NAME

       glStencilMaskSeparate - control the front and/or back writing of individual bits in the stencil planes

C SPECIFICATION

       void glStencilMaskSeparate(GLenum face, GLuint mask);

PARAMETERS

       face
           Specifies whether the front and/or back stencil writemask is updated. Three symbolic constants are
           valid: GL_FRONT, GL_BACK, and GL_FRONT_AND_BACK.

       mask
           Specifies a bit mask to enable and disable writing of individual bits in the stencil planes.
           Initially, the mask is all 1's.

DESCRIPTION

       glStencilMaskSeparate controls the writing of individual bits in the stencil planes. The least
       significant n bits of mask, where n is the number of bits in the stencil buffer, specify a mask. Where a
       1 appears in the mask, it's possible to write to the corresponding bit in the stencil buffer. Where a 0
       appears, the corresponding bit is write-protected. Initially, all bits are enabled for writing.

       There can be two separate mask writemasks; one affects back-facing polygons, and the other affects
       front-facing polygons as well as other non-polygon primitives.  glStencilMask() sets both front and back
       stencil writemasks to the same values, as if glStencilMaskSeparate() were called with face set to
       GL_FRONT_AND_BACK.

ERRORS

       GL_INVALID_ENUM is generated if face is not one of the accepted tokens.

ASSOCIATED GETS

       glGet() with argument GL_STENCIL_WRITEMASK, GL_STENCIL_BACK_WRITEMASK, or GL_STENCIL_BITS

VERSION SUPPORT

       ┌───────────────────────┬───────────────────────────────────────────────────────────────────────┐
       │                       │                OpenGL Version                                         │
       ├───────────────────────┼─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┤
       │ Function              │ 2.0 │ 2.1 │ 3.0 │ 3.1 │ 3.2 │ 3.3 │ 4.0 │ 4.1 │ 4.2 │ 4.3 │ 4.4 │ 4.5 │
       │ /                     │     │     │     │     │     │     │     │     │     │     │     │     │
       │ Feature               │     │     │     │     │     │     │     │     │     │     │     │     │
       │ Name                  │     │     │     │     │     │     │     │     │     │     │     │     │
       ├───────────────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
       │ glStencilMaskSeparate │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │
       └───────────────────────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┴─────┘

SEE ALSO

       glColorMask(), glDepthMask(), glStencilFunc(), glStencilFuncSeparate(), glStencilMask(), glStencilOp(),
       glStencilOpSeparate()

COPYRIGHT

       Copyright © 2006 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 © 1991-2006 Silicon Graphics, Inc.

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