glBlendColor — set the blend color
void glBlendColor( | GLfloat red, |
| GLfloat green, | |
| GLfloat blue, | |
GLfloat alpha); |
The GL_BLEND_COLOR may be used to calculate the source and destination
blending factors. The color components are clamped to the range
GL_BLEND_COLOR is set to (0, 0, 0, 0).
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.
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