'''OpenGL extension ARB.texture_rg
This module customises the behaviour of the
OpenGL.raw.GL.ARB.texture_rg to provide a more
Python-friendly API
Overview (from thespec import
Historically one- and two- component textures have been specified in OpenGL
using the intensity, luminance or luminance-alpha (I/L/LA) formats.
With the advent of programmable shaders and render-to-texture capabilites
these legacy formats carry some historical artifacts which are no longer
useful.
For example, when sampling from suchtexturestheluminancevalues import
are replicated across the color components, and the intensity values are
replicated across both the color and alpha components. This is no
longer necessary with programmable shaders.
It is also desirable to be able to render to one- and two-
component format textures using capabilities such as framebuffer
objects (FBO), but rendering to I/L/LA formats is under-specified
(specifically how to map R/G/B/A values to I/L/A texture channels).
This extension adds new base internal formats for the one-component RED
and two-component RG (red green) texture formats as well as sized
internal formats for fixed-point, floating-point and pure integer texture
formats. The new texure formats can be used for texturing as well
as for rendering into with framebuffer objects.
The official definition of this extension is available here:
http://www.opengl.org/registry/specs/ARB/texture_rg.txt
'''
from OpenGL import platform,constants,constant,arrays
from OpenGL import extensions,wrapper
from OpenGL.GL import glget
import ctypes
from OpenGL.raw.GL.ARB.texture_rg import *
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