Viewing file:  draw_buffers.py (1.27 KB) -rw-r--r--
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'''OpenGL extension ARB.draw_buffers
This module customises the behaviour of the
OpenGL.raw.GL.ARB.draw_buffers to provide a more
Python-friendly API
Overview (from the spec)
This extension extends ARB_fragment_program and ARB_fragment_shader
to allow multiple output colors, and provides a mechanism for
directing those outputs to multiple color buffers.
The official definition of this extension is available here:
http://www.opengl.org/registry/specs/ARB/draw_buffers.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.draw_buffers import *
### END AUTOGENERATED SECTION
from OpenGL.lazywrapper import lazy
@lazy( glDrawBuffersARB )
def glDrawBuffersARB( baseOperation, n=None, bufs=None ):
"""glDrawBuffersARB( bufs ) -> bufs
Wrapper will calculate n from dims of bufs if only
one argument is provided...
"""
if bufs is None:
bufs = n
n = None
bufs = arrays.GLenumArray.asArray( bufs )
if n is None:
n = arrays.GLenumArray.arraySize( bufs )
return baseOperation( n,bufs )
from OpenGL.GL import glget
glget.addGLGetConstant( GL_MAX_DRAW_BUFFERS_ARB, (1,) )
# Should have output arrays for the buffers too???
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