glStencilMaskSeparate — control the front and/or back writing of individual bits in the stencil planes
void glStencilMaskSeparate( | GLenum face, |
GLuint mask) ; |
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.
glStencilMaskSeparate
controls the writing of individual bits in the stencil planes.
The least significant
mask
,
where
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
.
glGet with argument
GL_STENCIL_WRITEMASK
, GL_STENCIL_BACK_WRITEMASK
,
or GL_STENCIL_BITS
glColorMask, glDepthMask, glStencilFunc, glStencilFuncSeparate, glStencilMask, glStencilOp, glStencilOpSeparate
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/.