glBlendColor

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Set the blend color.

C Specification[edit]

void glBlendColor( GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha );


Parameters[edit]

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


Description[edit]

The GL_BLEND_COLOR may be used to calculate the source and destination blending factors. The color components are clamped to the range [math][0,1][/math] 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).


Notes[edit]

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.


Associated Gets[edit]

 glGet with an argument of GL_BLEND_COLOR 


Version Support[edit]

 glBlendColor  2.0+

See Also[edit]

 glBlendEquation , glBlendFunc , glGetString , removedTypes 


Copyright[edit]

Copyright© 1991-2006 Silicon Graphics, Inc. Copyright© 2010-2014 Khronos Group. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.