File: stencil_two_side.py

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'''OpenGL extension EXT.stencil_two_side

This module customises the behaviour of the 
OpenGL.raw.GL.EXT.stencil_two_side to provide a more 
Python-friendly API

Overview (from the spec)
	
	This extension provides two-sided stencil testing where the
	stencil-related state (stencil operations, reference value, compare
	mask, and write mask) may be different for front- and back-facing
	polygons.  Two-sided stencil testing may improve the performance
	of stenciled shadow volume and Constructive Solid Geometry (CSG)
	rendering algorithms.

The official definition of this extension is available here:
http://www.opengl.org/registry/specs/EXT/stencil_two_side.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_two_side import *
from OpenGL.raw.GL.EXT.stencil_two_side import _EXTENSION_NAME

def glInitStencilTwoSideEXT():
    '''Return boolean indicating whether this extension is available'''
    from OpenGL import extensions
    return extensions.hasGLExtension( _EXTENSION_NAME )


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