The correct name is Accumulation Buffer.
It is a buffer, which (from what I understands) mainly accumulates the orgininal color with the buffers color, using a specific operations as specified in the operation.
http://www.opengl.org/documentation/specs/version1.1/glspec1.1/node106.html
It is a buffer, which (from what I understands) mainly accumulates the orgininal color with the buffers color, using a specific operations as specified in the operation.
http://www.opengl.org/documentation/specs/version1.1/glspec1.1/node106.html