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

[Mathias <Mat...@gm...>]

On Freitag 08 Oktober 2004 21:08, Steve Baker wrote:
> Mathias Fr=F6hlich wrote:
> > But not for functions only operating on ssg*'s datastructures like
> > ssgVtxTable::getNumColours(), ssgBranch::recalcBSphere(),
>
> If recalcBSphere is being called in an otherwise static scene, there
> is something very seriously wrong - either with the application or
> with SSG.
Very true.
But, one for one ...
:)

> The fact that:
> > ssgEntity::dirtyBSphere(),
>
> ...is also in your top ten list says there is certainly some kind of
> a bug.  The only time the bsphere should be dirtied is for the
> (presumably rare) moving models and things that move vertices
> around outside of SSG.   Since moving models are usually put into
> the tree very near the top in most applications, those are very
> unlikely to cause much CPU time consumption.
>
> This needs to be tracked down - recaclulating bounding spheres
> needlessly will *cripple* performance.
Yep.

Better support for that crease thing and the speedup gain from that change =
is=20
it worth anyway.

   Greetings

           Mathias

=2D-=20
Mathias Fr=F6hlich, email: Mat...@gm...