> We are porting an application from SGI workstation to Linux. The
> problem is that it used opengl overlays a lot, which was not a problem
> on SGI systems, but on Linux we really are stuck. Currently, we have
> NVidia GF4 card, and it doesn't seem to support overlays either.
IIRC, there's some kind of overlay "emulation" (ie: not the "true
thing") for NVIDIA cards, although in this moment I don't find the
details on how to use it.
> any one know about any hardware in the market which supports opengl
> hardware overlays?
It depends on your definition for "hardware": I guess you meant
hardware==Beige_Boxes. In this case, there's a (commercial) OpenGL
implementation for Linux that supports hardware overlays for some
graphics boards, here:
Quote:> Its really a shame that SGI systems of 5 years back
> had support for this feature, but intel based systems are still
> lacking far behind.
The same stands true for hardware accelerated ARB_imaging, and other
features such as 12bit per component color or superb video I/O with
Hmmm... I feel a bit puzzled now... I thought people moving from SGI to
PC were reaaaally in love with their new beige boxes ;)
Like somebody in some website said, "Quality, price, performance. You
can have only two."