vertex_array_range2.py :  » Game-2D-3D » PyOpenGL » PyOpenGL-3.0.1 » OpenGL » GL » NV » Python Open Source

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Python Open Source » Game 2D 3D » PyOpenGL 
PyOpenGL » PyOpenGL 3.0.1 » OpenGL » GL » NV » vertex_array_range2.py
'''OpenGL extension NV.vertex_array_range2

This module customises the behaviour of the 
OpenGL.raw.GL.NV.vertex_array_range2 to provide a more 
Python-friendly API

Overview (from thespec import 
  
  Enabling and disabling the vertex array range is specified by the
  original NV_vertex_array_range extension specification to flush the
  vertex array range implicitly.  In retrospect, this semantic is
  extremely misconceived and creates terrible performance problems
  for any application that wishes to mix conventional vertex arrays
  with vertex arrange range-enabled vertex arrays.
  
  This extension provides a new token for enabling/disabling the
  vertex array range that does NOT perform an implicit vertex array
  range flush when the enable/disable is performed.

The official definition of this extension is available here:
http://www.opengl.org/registry/specs/NV/vertex_array_range2.txt
'''
from OpenGL import platform,constants,constant,arrays
from OpenGL import extensions,wrapper
from OpenGL.GL import glget
import ctypes
from OpenGL.raw.GL.NV.vertex_array_range2 import *
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