OpenGL extension NV.fragment_program_option
This module customises the behaviour of the OpenGL.raw.GL.NV.fragment_program_option to provide a more Python-friendly API
Overview (from the spec)
This extension provides additional fragment program functionality to extend the standard ARB_fragment_program language and execution environment. ARB programs wishing to use this added functionality need only add:
to the beginning of their fragment programs.
The functionality provided by this extension, which is roughly equivalent to that provided by the NV_fragment_program extension, includes:
increased control over precision in arithmetic computations and storage,
data-dependent conditional writemasks,
an absolute value operator on scalar and swizzled operand loads,
instructions to compute partial derivatives, and perform texture lookups using specified partial derivatives,
fully orthogonal "set on" instructions,
instructions to compute reflection vector and perform a 2D coordinate transform, and
instructions to pack and unpack multiple quantities into a single component.
The official definition of this extension is available here:
Return boolean indicating whether this extension is available