WebGLRenderingContext.blendColor()

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

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.

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]

• WebGLRenderingContext.blendEquation()
• WebGLRenderingContext.blendFunc()