GNU/Linux |
CentOS 5.3 |
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glBlendColor(3gl) |
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glBlendColor − set the blend color
void glBlendColor( GLclampf red,
GLclampf green, | |
GLclampf blue, | |
GLclampf alpha ) |
red, green, blue, alpha
specify the components of GL_BLEND_COLOR
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 is part of the GL_ARB_imaging subset. glBlendColor is present only if GL_ARB_imaging is returned when glGetString is called with GL_EXTENSIONS as its argument.
GL_INVALID_OPERATION is generated if glBlendColor is executed between the execution of glBegin and the corresponding execution of glEnd.
glGet with an argument of GL_BLEND_COLOR
glBlendEquation(3G), glBlendFunc(3G), glGetString(3G)
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glBlendColor(3gl) | ![]() |