WebGLRenderingContext: blendColor() method
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
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.
Syntax
blendColor(red, green, blue, alpha)
Parameters
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.
Return value
None (undefined
).
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 |
---|
WebGL Specification # 5.14.3 |
Browser compatibility
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