glClearAccum

NAME

glClearAccum -- specify clear values for the accumulation buffer

C SPECIFICATION

void glClearAccum(GLfloat red,
                  GLfloat green,
                  GLfloat blue,
                  GLfloat alpha)

PARAMETERS

red, green, blue, alpha: Specify the red, green, blue, and alpha values used when the accumulation buffer is cleared. The default values are all zero.

DESCRIPTION

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].

ERRORS

GL_INVALID_OPERATION is generated if glClearAccum is called between a call to glBegin and the corresponding call to glEnd.

ASSOCIATED GETS

glGet with argument GL_ACCUM_CLEAR_VALUE