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glClearAccum - specify clear values for the accumulation buffer
void glClearAccum( GLfloat red,
GLfloat green,
GLfloat blue,
GLfloat alpha )
- red, green, blue, alpha
- Specify 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 [-1, 1].
GL_INVALID_OPERATION
is generated if glClearAccum is executed between the execution of glBegin
and the corresponding execution of glEnd.
glGet with argument
GL_ACCUM_CLEAR_VALUE
glAccum(3G)
, glClear(3G)
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