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

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

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

Overview (from thespec import 
  
  This extension provides a mechanism to antialias all GL primitives:
  points, lines, polygons, bitmaps, and images.  The technique is to
  sample all primitives multiple times at each pixel.  The color sample
  values are resolved to a single, displayable color each time a pixel
  is updated, so the antialiasing appears to be automatic at the
  application level.  Because each sample includes depth and stencil
  information, the depth and stencil functions perform equivalently
  to the single-sample mode.
  
  An additional buffer, called the multisample buffer, is added to
  the framebuffer.  Pixel sample values, including color, depth, and
  stencil values, are stored in this buffer.  When the framebuffer
  includes a multisample buffer, it does not also include separate
  depth or stencil buffers, even if the multisample buffer does not
  store depth or stencil values.  Color buffers (left/right, front/
  back, and aux) do coexist with the multisample buffer, however.
  
  Multisample antialiasing is most valuable for rendering polygons,
  because it requires no sorting for hidden surface elimination, and
  it correctly handles adjacent polygons, object silhouettes, and
  even intersecting polygons.  If only points or lines are being
  rendered, the "smooth" antialiasing mechanism provided by the base
  GL may result in a higher quality image.  This extension is designed
  to allow multisample and smooth antialiasing techniques to be
  alternated during the rendering of a single scene.

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