Re: [Plib-devel] [PATCH] crease for ac3d files and speedup

[Steve B. <sjb...@ai...>]

Mathias Fr=F6hlich wrote:
> Hi all,
>=20
> During the past days I have done some profiling on flightgear. One fina=
l=20
> outcome of that work was, that most time is spent in ssg routines (yes,=
 ssg=20
> not OpenGL!!).

That's because you have a graphics card that executes almost 100% of Open=
GL
functions off on separate hardware.  When you eliminate OpenGL, what othe=
r
functions could possibly consume much time?   It has to be SSG - so that
comes as no suprise at all.

> The problems are the huge amount of small leaf nodes we get=20
> from the ac file loader. That vertex optimization pass makes this a bit=
=20
> better but there was still room for improovement.

Yep.  It's a perennial problem for flight simulators.

---------------------------- Steve Baker -------------------------
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