Baseline Widely available
Note: This feature is available in Web Workers.
The WebGLRenderingContext.blendColor() method of the WebGL API is used to set the source and destination blending factors.
blendColor(red, green, blue, alpha)
red
A GLclampf for the red component in the range of 0 to 1. Default value is 0.
green
A GLclampf for the green component in the range of 0 to 1. Default value is 0.
blue
A GLclampf for the blue component in the range of 0 to 1. Default value is 0.
alpha
A GLclampf for the alpha component (transparency) in the range of 0. to 1. Default value is 0.
None (undefined).
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]
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