Note: This feature is available in Web Workers.
The WebGLRenderingContext.clearStencil() method of the WebGL API specifies the clear value for the stencil buffer.
This specifies what stencil value to use when calling the clear() method.
clearStencil(s)sA GLint specifying the index used when the stencil buffer is cleared. Default value: 0.
None (undefined).
gl.clearStencil(1);To get the current stencil clear value, query the STENCIL_CLEAR_VALUE constant.
gl.getParameter(gl.STENCIL_CLEAR_VALUE);
// 1