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# docs.GL

OpenGL 3
OpenGL 2

# 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 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`

## See Also

glAccum, glClear

## Copyright

Copyright © 1991-2006 Silicon Graphics, Inc. This document is licensed under the SGI Free Software B License. For details, see https://web.archive.org/web/20171022161616/http://oss.sgi.com/projects/FreeB/.

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