Gl.StencilMask (gb.opengl)
Static Sub StencilMask ( Mask As Integer )
Control the front and back writing of individual bits in the stencil planes.
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
Gl.StencilMask controls the writing of individual bits in the stencil planes.
The least significant
bits of
mask,
where
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.
Gl.StencilMask sets both front
and back stencil writemasks to the same values. Use Gl.StencilMaskSeparate
to set front and back stencil writemasks to different values.
Notes
Gl.StencilMask is the same as
calling Gl.StencilMaskSeparate
with
face set to Gl.FRONT_AND_BACK.
Associated Gets
Gl.Get with argument
Gl.STENCIL_WRITEMASK, Gl.STENCIL_BACK_WRITEMASK,
or Gl.STENCIL_BITS
See also
Gl.StencilFuncSeparate,
Gl.StencilMaskSeparate,
Gl.StencilOp,
Gl.StencilOpSeparate