OpenGL extension ARB.texture_border_clamp
This module customises the behaviour of the
OpenGL.raw.GL.ARB.texture_border_clamp to provide a more
Overview (from the spec)
The base OpenGL provides clamping such that the texture coordinates are
limited to exactly the range [0,1]. When a texture coordinate is clamped
using this algorithm, the texture sampling filter straddles the edge of
the texture image, taking 1/2 its sample values from within the texture
image, and the other 1/2 from the texture border. It is sometimes
desirable for a texture to be clamped to the border color, rather than to
an average of the border and edge colors.
This extension defines an additional texture clamping algorithm.
CLAMP_TO_BORDER_ARB clamps texture coordinates at all mipmap levels such
that NEAREST and LINEAR filters return only the color of the border
The official definition of this extension is available here:
|EXTENSION_NAME = 'GL_ARB_texture_border_clamp'|
GL_CLAMP_TO_BORDER_ARB = GL_CLAMP_TO_BORDER_ARB
__file__ = '/home/mcfletch/pylive/OpenGL/GL/ARB/texture_border_clamp.pyc'
__name__ = 'OpenGL.GL.ARB.texture_border_clamp'
__package__ = 'OpenGL.GL.ARB'