- control the writing of individual bits in the stencil
planes
C SPECIFICATION
PARAMETERS
_param1 Specifies a bit mask to enable and disable writ-
ing 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
_param1, 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.
ERRORS
GL_INVALID_OPERATION is generated if glStencilMask is exe-
cuted between the execution of glBegin and the correspond-
ing execution of glEnd.
ASSOCIATED GETS
glGet with argument GL_STENCIL_WRITEMASK
glGet with argument GL_STENCIL_BITS
SEE ALSO
glColorMask, glDepthMask, glIndexMask, glStencilFunc,
glStencilOp
1