long undocumented NVidia extensions

OpenGL OpenGL: Advanced Coding
1

GL_NV_flushHold
GL_NV_draw_mesh

This two extensions present in NVidia gl header for very long time. What is their status? Are they supported, dropped, closed?

glDrawMeshNV looks very interesting.

PS.

I always feel nervous after reading copyright from NVidia gl header

** This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;
** the contents of this file may not be disclosed to third parties, copied or
** duplicated in any form, in whole or in part, without the prior written
** permission of Silicon Graphics, Inc.
**

2

and also

GL_NV_depth_bounds_test
GL_NV_extended_combiner_program
GL_NV_texture_expand_normal.

They’re present in 41.09 Detonators but don’t appear in GL_EXTENSIONS string even with NV30 emulation turned on.

Any information anyone?

Kuba

3

So, you’re starving for more mess?

It almost feels like addiction:

you’ve been taking it for years,
it makes you swear and suffer on daily basis,
but you continue to desire for more, as each new, bigger dose (release) is so exciting…

I think ‘GLcrack’ would be a cool name for my extension-loading library, if I ever released it to public…

4

I hope NV_draw_mesh is some kind of geometry image API. This is pure speculation, though, but it would make sense if you had a render-to-geometry feature as well.

-Won

5

spoiler:
inside nvoglnt.dll there are some strings looking like error messages of shader/program compiler, making easy to guess what “combiner program” could be.

6

>>GL_NV_draw_mesh<<

the stuff nightmares are made of