📄 stencilmask.html
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<STRONG>NAME</STRONG>
<STRONG>glStencilMask</STRONG> - control the writing of individual bits in
the stencil planes
<STRONG>C</STRONG> <STRONG>SPECIFICATION</STRONG>
void <STRONG>glStencilMask</STRONG>( GLuint <EM>mask</EM> )
<STRONG>PARAMETERS</STRONG>
<EM>mask</EM> Specifies a bit mask to enable and disable writing of
individual bits in the stencil planes. Initially, the
mask is all 1's.
<STRONG>DESCRIPTION</STRONG>
<STRONG>glStencilMask</STRONG> controls the writing of individual bits in the
stencil planes. The least significant n bits of <EM>mask</EM>, 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.
<STRONG>ERRORS</STRONG>
<STRONG>GL_INVALID_OPERATION</STRONG> is generated if <STRONG>glStencilMask</STRONG> is
executed between the execution of <STRONG>glBegin</STRONG> and the
corresponding execution of <STRONG>glEnd</STRONG>.
<STRONG>ASSOCIATED</STRONG> <STRONG>GETS</STRONG>
<STRONG>glGet</STRONG> with argument <STRONG>GL_STENCIL_WRITEMASK</STRONG>
<STRONG>glGet</STRONG> with argument <STRONG>GL_STENCIL_BITS</STRONG>
<STRONG>SEE</STRONG> <STRONG>ALSO</STRONG>
<STRONG>glColorMask</STRONG>, <STRONG>glDepthMask</STRONG>, <STRONG>glIndexMask</STRONG>, <STRONG>glStencilFunc</STRONG>,
<STRONG>glStencilOp</STRONG>
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