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'''OpenGL extension AMD.occlusion_query_event
This module customises the behaviour of the
OpenGL.raw.GL.AMD.occlusion_query_event to provide a more
Python-friendly API
Overview (from the spec)
Occlusion queries provide a means to count the number of fragments that
pass the depth and stencil tests and that may contribute to a rendered
image. In unextended OpenGL, an occlusion query increments its
samples-passed count whenever a sample passes both the stencil test and
the depth test (if enabled). However, there is no way to count fragments
that fail the stencil test, or pass the stencil test and then subsequently
fail the depth test.
This extension introduces the concept of occlusion query events and changes
the concept of an occlusion query from counting passed fragments to counting
fragments that generate any of a user-selectable set of events. Provided
events include passing the depth test, and passing or failing the stencil
test. For a given occlusion query object, counting of these events may be
enabled or disabled, allowing any combination to be counted.
The official definition of this extension is available here:
http://www.opengl.org/registry/specs/AMD/occlusion_query_event.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.AMD.occlusion_query_event import *
from OpenGL.raw.GL.AMD.occlusion_query_event import _EXTENSION_NAME
def glInitOcclusionQueryEventAMD():
'''Return boolean indicating whether this extension is available'''
from OpenGL import extensions
return extensions.hasGLExtension( _EXTENSION_NAME )
### END AUTOGENERATED SECTION
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