glBlendColor - set the blend color

glGet() with an argument of GL_BLEND_COLOR

voidglBlendColor(GLfloatred,GLfloatgreen,GLfloatblue,GLfloatalpha);

       Copyright © 1991-2006 Silicon Graphics, Inc.
       Copyright © 2010-2014 Khronos Group

[FIXME: source]                                    11/18/2024                                   GLBLENDCOLOR(3G)

       The GL_BLEND_COLOR may be used to calculate the source and destination blending factors. The color
       components are clamped to the range 0 1 before being stored. See glBlendFunc() for a complete description
       of the blending operations. Initially the GL_BLEND_COLOR is set to (0, 0, 0, 0).

       glBlendColor - set the blend color

       The type of the red, green, blue, and alpha parameters was changed from GLclampf to GLfloat. This change
       is transparent to user code and is described in detail on the removedTypes() page.

red, green, blue, alpha
           specify the components of GL_BLEND_COLOR

glBlendEquation(), glBlendFunc(), glGetString(), removedTypes()

       ┌──────────────┬───────────────────────────────────────────────────────────────────────┐
       │              │                OpenGLVersion                                         │
       ├──────────────┼─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┬─────┤
       │ Function     │ 2.0 │ 2.1 │ 3.0 │ 3.1 │ 3.2 │ 3.3 │ 4.0 │ 4.1 │ 4.2 │ 4.3 │ 4.4 │ 4.5 │
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       │ Name         │     │     │     │     │     │     │     │     │     │     │     │     │
       ├──────────────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┼─────┤
       │ glBlendColor │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │  ✔  │
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