WebGLRenderingContext.colorMask() - Web APIs 编辑
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
BCD tables only load in the browser
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
See also
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