glClearAccum — specify clear values for the accumulation buffer
void glClearAccum( | GLfloat | red, |
| GLfloat | green, | |
| GLfloat | blue, | |
| GLfloat | alpha); |
red, green, blue, alphaSpecify the red, green, blue, and alpha values used when the accumulation buffer is cleared. The initial values are all 0.
glClearAccum specifies the red, green, blue, and alpha values used by glClear
to clear the accumulation buffer.
Values specified by glClearAccum are clamped to the
range
GL_INVALID_OPERATION is generated if glClearAccum
is executed between the execution of glBegin
and the corresponding execution of glEnd.
Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see http://oss.sgi.com/projects/FreeB/.