glblendcolorext man page on SunOS

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GLBLENDCOLOREXT(3GL)					  GLBLENDCOLOREXT(3GL)

NAME
       glBlendColorEXT - specify the blend color

C SPECIFICATION
       void glBlendColorEXT( GLclampf red,
			     GLclampf green,
			     GLclampf blue,
			     GLclampf alpha )

PARAMETERS
       red, green, blue, alpha

       Specify red, green, blue, and alpha components.

DESCRIPTION
       glBlendColorEXT	specifies  a  constant	color used for calculating the
       source and destination blending factors.

       See glBlendFunc for a complete description of the blending operations.

       The four parameters are clamped to the range [0,1] before being stored.
       The default value for the constant blending color is (0,0,0,0).

NOTES
       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_EXTEN‐
       SIONS, extension EXT_blend_color is supported by the connection.

ERRORS
       GL_INVALID_OPERATION  is	 generated  if	glBlendColorEXT	 is   executed
       between	the  execution	of  glBegin and the corresponding execution of
       glEnd.

ASSOCIATED GETS
       glGet with an argument of GL_BLEND_COLOR_EXT

SEE ALSO
       glBlendFuncP, glBlendEquationEXT, glGetString

				  24 Sept 97		  GLBLENDCOLOREXT(3GL)
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