GLCLEARACCUM(3G) | GLCLEARACCUM(3G) |
glClearAccum - specify clear values for the accumulation buffer
void glClearAccum( GLfloat red,
GLfloat green, GLfloat blue, GLfloat alpha )
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, glClear