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WebGLRenderingContext.stencilMask()

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

The WebGLRenderingContext.stencilMaskSeparate() method can set front and back stencil writemasks to different values.

Syntax

void gl.stencilMask(mask);

Parameters

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.

Examples

gl.stencilMask(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

Specification Status Comment
WebGL 1.0
The definition of 'stencilMask' in that specification.
Recommendation Initial definition.
OpenGL ES 2.0
The definition of 'glStencilMask' in that specification.
Standard Man page of the OpenGL API.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support 9 4.0 (2.0) 11 12 5.1
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? 25 (Yes) ? 12 8.1

See also

Document Tags and Contributors

 Contributors to this page: fscholz
 Last updated by: fscholz,