text: '''OpenGL extension EXT.stencil_wrap
  
  This module customises the behaviour of the 
  OpenGL.raw.GL.EXT.stencil_wrap to provide a more 
  Python-friendly API
  
  Overview (from the spec)
  	
  	Various algorithms use the stencil buffer to "count" the number of
  	surfaces that a ray passes through.  As the ray passes into an object,
  	the stencil buffer is incremented.  As the ray passes out of an object,
  	the stencil buffer is decremented.
  	
  	GL requires that the stencil increment operation clamps to its maximum
  	value.  For algorithms that depend on the difference between the sum
  	of the increments and the sum of the decrements, clamping causes an
  	erroneous result.
  	
  	This extension provides an enable for both maximum and minimum wrapping
  	of stencil values.  Instead, the stencil value wraps in both directions.
  	
  	Two additional stencil operations are specified.  These new operations
  	are similiar to the existing INCR and DECR operations, but they wrap
  	their result instead of saturating it.  This functionality matches
  	the new stencil operations introduced by DirectX 6.
  
  The official definition of this extension is available here:
  http://www.opengl.org/registry/specs/EXT/stencil_wrap.txt
  '''
  from OpenGL import platform, constant, arrays
  from OpenGL import extensions, wrapper
  import ctypes
  from OpenGL.raw.GL import _types, _glgets
  from OpenGL.raw.GL.EXT.stencil_wrap import *
  from OpenGL.raw.GL.EXT.stencil_wrap import _EXTENSION_NAME
  
  def glInitStencilWrapEXT():
      '''Return boolean indicating whether this extension is available'''
      from OpenGL import extensions
      return extensions.hasGLExtension( _EXTENSION_NAME )
  
  
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