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'''OpenGL extension IBM.cull_vertex |
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This module customises the behaviour of the |
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OpenGL.raw.GL.IBM.cull_vertex to provide a more |
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Python-friendly API |
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Overview (from the spec) |
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IBM_cull_vertex provides a subset of the vertex culling functionality |
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found in EXT_cull_vertex without providing a guarantee that faces will |
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be culled because of it. EXT_cull_vertex is a technically superior |
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solution, but the vertex culling aspect of IBM_cull_vertex provides |
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generally useful function cheaply (without imposing the mandated |
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culling found in EXT_cull_vertex). |
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The official definition of this extension is available here: |
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http://www.opengl.org/registry/specs/IBM/cull_vertex.txt |
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''' |
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from OpenGL import platform, constant, arrays |
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from OpenGL import extensions, wrapper |
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import ctypes |
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from OpenGL.raw.GL import _types, _glgets |
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from OpenGL.raw.GL.IBM.cull_vertex import * |
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from OpenGL.raw.GL.IBM.cull_vertex import _EXTENSION_NAME |
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def glInitCullVertexIBM(): |
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'''Return boolean indicating whether this extension is available''' |
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from OpenGL import extensions |
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return extensions.hasGLExtension( _EXTENSION_NAME ) |
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