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WebGLRenderingContext.blendColor()

The WebGLRenderingContext.blendColor() method of the WebGL API is used to set the source and destination blending factors.

Syntax

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

Parameters

red
A GLclampf for the red component in the range of 0 to 1.
green
A GLclampf for the green component in the range of 0 to 1.
blue
A GLclampf for the blue component in the range of 0 to 1.
alpha
A GLclampf for the alpha component (transparency) in the range of 0 to 1.

Return value

None.

Examples

To set the blend color, use:

gl.blendColor(0, 0.5, 1, 1);

To get the blend color, query the BLEND_COLOR constant which returns a Float32Array.

gl.getParameter(gl.BLEND_COLOR);
// Float32Array[0, 0.5, 1, 1]

Specifications

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

Browser compatibility

FeatureChromeFirefoxEdgeInternet ExplorerOperaSafari
Basic Support94.01211125.1
FeatureAndroidChrome for AndroidEdge mobileFirefox for AndroidIE mobileOpera AndroidiOS Safari
Basic Support(Yes)25(Yes)(Yes)11128.1

See also

Document Tags and Contributors

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