glBlendColorEXT: set the blend color.
C Specification |
Associated Gets |
The GL_BLEND_COLOR_EXT may be used to calculate the source and
destination blending factors. See glBlendFunc for a complete description of
the blending operations. Initially the GL_BLEND_COLOR_EXT is
set to (0, 0, 0, 0).
glBlendColorEXT is part of the EXT_blend_color
extension, not part of the core GL command set. If
GL_EXT_blend_color is included in the string returned by glGetString, when called with argument
GL_EXTENSIONS, extension EXT_blend_color is
supported by the connection.
- red, green, blue,
- Specify the components of GL_BLEND_COLOR_EXT.
glGet with an argument of
- GL_INVALID_OPERATION is generated if glBlendColorEXT is executed
between the execution of glBegin and
the corresponding execution of glEnd.