WebGLRenderingContext.colorMask()
The WebGLRenderingContext.colorMask() method of the WebGL API sets which color components to
enable or to disable when drawing or rendering to a WebGLFramebuffer.
Syntax
colorMask(red, green, blue, alpha)
Parameters
red-
A
GLbooleanspecifying whether or not the red color component can be written into the frame buffer. Default value:true. green-
A
GLbooleanspecifying whether or not the green color component can be written into the frame buffer. Default value:true. blue-
A
GLbooleanspecifying whether or not the blue color component can be written into the frame buffer. Default value:true. alpha-
A
GLbooleanspecifying whether or not the alpha (transparency) component can be written into the frame buffer. Default value:true.
Return value
None (undefined).
Examples
gl.colorMask(true, true, true, false);
To get the current color mask, query the COLOR_WRITEMASK constant which
returns an Array.
gl.getParameter(gl.COLOR_WRITEMASK);
// [true, true, true, false]
Specifications
| Specification |
|---|
| WebGL Specification # 5.14.3 |
Browser compatibility
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