The WebGLRenderingContext.clearColor()
method of the WebGL API specifies the color values used when clearing color buffers.
This specifies what color values to use when calling the clear()
method. The values are clamped between 0 and 1.
Syntax
void gl.clearColor(red, green, blue, alpha);
Parameters
red
- A
GLclampf
specifying the red color value used when the color buffers are cleared. Default value: 0. green
- A
GLclampf
specifying the green color value used when the color buffers are cleared. Default value: 0. blue
- A
GLclampf
specifying the blue color value used when the color buffers are cleared. Default value: 0. alpha
- A
GLclampf
specifying the alpha (transparency) value used when the color buffers are cleared. Default value: 0.
Return value
None.
Examples
gl.clearColor(1, 0.5, 0.5, 3);
To get the current clear color, query the COLOR_CLEAR_VALUE
constant which returns a Float32Array
.
gl.getParameter(gl.COLOR_CLEAR_VALUE);
// Float32Array[1, 0.5, 0.5, 1]
Specifications
Specification | Status | Comment |
WebGL 1.0The definition of 'clearColor' in that specification. | Recommendation | Initial definition. |
OpenGL ES 2.0The definition of 'glClearColor' in that specification. | Standard | Man page of the OpenGL API. |
Browser compatibility
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.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
clearColor
|
Chrome
Full support 9 |
Edge
Full support 12 |
Firefox
Full support 4 |
IE
Full support 11 |
Opera
Full support 12 |
Safari
Full support 5.1 |
WebView Android
Full support Yes |
Chrome Android
Full support 25 |
Firefox Android
Full support Yes |
Opera Android
Full support 12 |
Safari iOS
Full support 8 |
Samsung Internet Android
Full support 1.5 |
Legend
- Full support
- Full support
See also
WebGLRenderingContext.clear()
WebGLRenderingContext.clearDepth()
WebGLRenderingContext.clearStencil()
WebGLRenderingContext.clearColor() by Mozilla Contributors is licensed under CC-BY-SA 2.5.