Extracted from Pike v7.4 release 35 at 2003-12-09.
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predef::
GL

Method GL.glClearAccum()


Method glClearAccum

void GL.glClearAccum(float|array(float) red, float|void green, float|void blue, float|void alpha)

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].

Parameter red

Specify the red, green, blue, and alpha values used when the accumulation buffer is cleared. The initial values are all 0.

Throws

GL_INVALID_OPERATION is generated if glClearAccum is executed between the execution of glBegin and the corresponding execution of glEnd .