OpenGL.raw.GL.NV.fragment_program2 | index /build/buildd/pyopengl-3.0.0~b6/OpenGL/raw/GL/NV/fragment_program2.py |
OpenGL extension NV.fragment_program2
Overview (from the spec)
This extension, like the NV_fragment_program_option 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:
OPTION NV_fragment_program2;
to the beginning of their fragment programs.
New functionality provided by this extension, above and beyond that
already provided by the NV_fragment_program_option extension, includes:
* structured branching support, including data-dependent IF tests, loops
supporting a fixed number of iterations, and a data-dependent loop
exit instruction (BRK),
* subroutine calls,
* instructions to perform vector normalization, divide vector components
by a scalar, and perform two-component dot products (with or without a
scalar add),
* an instruction to perform a texture lookup with an explicit LOD,
* a loop index register for indirect access into the texture coordinate
attribute array, and
* a facing attribute that indicates whether the fragment is generated
from a front- or back-facing primitive.
The official definition of this extension is available here:
http://oss.sgi.com/projects/ogl-sample/registry/NV/fragment_program2.txt
Automatically generated by the get_gl_extensions script, do not edit!
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EXTENSION_NAME = 'GL_NV_fragment_program2' GL_MAX_PROGRAM_CALL_DEPTH_NV = GL_MAX_PROGRAM_CALL_DEPTH_NV GL_MAX_PROGRAM_EXEC_INSTRUCTIONS_NV = GL_MAX_PROGRAM_EXEC_INSTRUCTIONS_NV GL_MAX_PROGRAM_IF_DEPTH_NV = GL_MAX_PROGRAM_IF_DEPTH_NV GL_MAX_PROGRAM_LOOP_COUNT_NV = GL_MAX_PROGRAM_LOOP_COUNT_NV GL_MAX_PROGRAM_LOOP_DEPTH_NV = GL_MAX_PROGRAM_LOOP_DEPTH_NV __file__ = '/build/buildd/pyopengl-3.0.0~b6/OpenGL/raw/GL/NV/fragment_program2.py' __name__ = 'OpenGL.raw.GL.NV.fragment_program2' |