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

void gl.colorMask(red, green, blue, alpha);

Parameters

red
A GLboolean specifying whether or not the red color component can be written into the frame buffer. Default value: true.
green
A GLboolean specifying whether or not the green color component can be written into the frame buffer. Default value: true.
blue
A GLboolean specifying whether or not the blue color component can be written into the frame buffer. Default value: true.
alpha
A GLboolean specifying whether or not the alpha (transparency) component can be written into the frame buffer. Default value: true.

Return value

None.

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

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support912411125.1
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support Yes25 Yes Yes128.1 Yes

See also

Document Tags and Contributors

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