Method GL.glClearStencil()

Method glClearStencil: void glClearStencil(int s)
Description: glClearStencil specifies the index used by glClear to clear the stencil buffer. s is masked with 2 sup m - 1, where m is the number of bits in the stencil buffer.
Parameter s: Specifies the index used when the stencil buffer is cleared. The initial value is 0.
Throws: GL_INVALID_OPERATION is generated if glClearStencil is executed between the execution of glBegin and the corresponding execution of glEnd .