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web api instance method

WebGLRenderingContext: stencilMaskSeparate() method

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The WebGLRenderingContext.stencilMaskSeparate() method of the WebGL API controls enabling and disabling of front and/or back writing of individual bits in the stencil planes.

The stencilMask() method can set both, the front and back stencil writemasks to one value at the same time.

Syntax

stencilMaskSeparate(face, mask)

Parameters

  • face

    • : A GLenum specifying whether the front and/or back stencil writemask is updated. The possible values are:
      • gl.FRONT
      • gl.BACK
      • gl.FRONT_AND_BACK

  • mask

    • : A GLuint specifying a bit mask to enable or disable writing of individual bits in the stencil planes. By default, the mask is all 1.

Return value

None (undefined).

Examples

gl.stencilMaskSeparate(gl.FRONT, 110101);

To get the current stencil masks, query the STENCIL_WRITEMASK, STENCIL_BACK_WRITEMASK, or STENCIL_BITS constants.

gl.getParameter(gl.STENCIL_WRITEMASK);
// 110101
gl.getParameter(gl.STENCIL_BACK_WRITEMASK);
// 110101
gl.getParameter(gl.STENCIL_BITS);
// 0

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.

See also