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

glGet() with argument GL_STENCIL_WRITEMASK, GL_STENCIL_BACK_WRITEMASK, or GL_STENCIL_BITS

voidglStencilMaskSeparate(GLenumface,GLuintmask);

       Copyright © 1991-2006 Silicon Graphics, Inc.

[FIXME: source]                                    11/18/2024                           GLSTENCILMASKSEPARAT(3G)

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.

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

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

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.

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

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       │ glStencilMaskSeparate │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │
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