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Core in version 4.6
Core since version 1.0

glClearColor: specify clear values for the color buffers

Function Definition

 void glClearColor(GLfloat red​, GLfloat green​, GLfloat blue​, GLfloat alpha​);
red, green, blue, alpha
Specify the red, green, blue, and alpha values used when the color buffers are cleared. The initial values are all 0.


glClearColor specifies the red, green, blue, and alpha values used by glClear to clear the color buffers.


The type of the red​, green​, blue​, and alpha​ parameters was changed from GLclampf to GLfloat. This change is transparent to user code.

Associated Gets

glGet with argument GL_COLOR_CLEAR_VALUE

See Also



Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see LicenseRef-FreeB.