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GLSTENCILMASK(3G)                                OpenGL 3.3                                GLSTENCILMASK(3G)



NAME
       glStencilMask - control the front and back writing of individual bits in the stencil planes

C SPECIFICATION
       void glStencilMask(GLuint mask);

PARAMETERS
       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
       glStencilMask 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. Use glStencilMaskSeparate() to set front and back stencil
       writemasks to different values.

NOTES
       glStencilMask() is the same as calling glStencilMaskSeparate() with face set to GL_FRONT_AND_BACK.

ASSOCIATED GETS
       glGet() with argument GL_STENCIL_WRITEMASK, GL_STENCIL_BACK_WRITEMASK, or GL_STENCIL_BITS

SEE ALSO
       glColorMask(), glDepthMask(), glStencilFunc(), glStencilFuncSeparate(), glStencilMaskSeparate(),
       glStencilOp(), glStencilOpSeparate()


COPYRIGHT
       Copyright (C) 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software
       B License. For details, see http://oss.sgi.com/projects/FreeB/.



OpenGL 3.3                                       03/08/2011                                GLSTENCILMASK(3G)