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
GLclampffor the red component in the range of 0 to 1. Default value is 0. green-
A
GLclampffor the green component in the range of 0 to 1. Default value is 0. blue-
A
GLclampffor the blue component in the range of 0 to 1. Default value is 0. alpha-
A
GLclampffor 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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