glClearAccum(3G) — Subroutines
NAME
glClearAccum − specify clear values for the accumulation buffer
SYNOPSIS
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 initial values are all 0.
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 executed between the execution of glBegin() and the corresponding execution of glEnd().
ASSOCIATED GETS
glGet() with argument GL_ACCUM_CLEAR_VALUE