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'''OpenGL extension SGIX.vertex_preclip
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This module customises the behaviour of the
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OpenGL.raw.GL.SGIX.vertex_preclip to provide a more
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Overview (from the spec)
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Certain graphics subsystems are capable of performing fast
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2D viewport or, in some cases, 3D volume "scissoring" operations
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within some coordinate range much faster that the host CPU could
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re-tesselate clipped primitives.
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This extension introduces the notion of an extended rasterizable view
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volume that is an expansion of the clip-space view volume. This volume
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is the space within which a particular graphics system is much more
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efficient at rejecting fragments that lie outside the view volume than
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it is at performing strict view volume clipping.
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Clip-checking can be turned on or off through the glEnable/glDisable
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mechanism, and can be further controlled by using glHint.
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The official definition of this extension is available here:
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http://www.opengl.org/registry/specs/SGIX/vertex_preclip.txt
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from OpenGL import platform, constants, constant, arrays
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from OpenGL import extensions, wrapper
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from OpenGL.GL import glget
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from OpenGL.raw.GL.SGIX.vertex_preclip import *
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