Hi Artur
> > Can someone (from Sun ? ) make assure that continous matrix
> > multiplication over a long period of time is no problem in Java3d ? Then
> > I would switch to this.
>
> I don't think that sun people can do miracles. If you use floating
> point, you are always risking small corruption.
> With matrices this problem is even larger, because of number of
> computation involved there. Basically if you do a lot of non-trivial
> math on matrix (and rotations are non-trivial in this meaning), you are
> almost guaranteed to go astray at some point. There is no way sun could
> prevent this, unless they will start to 'correct' matrices for you of
> they will get close to unstable ones. But 'correcting' values for
> programmer is not a good idea - it would be surprising to get up
> flipped, just because algo determined it would be too unstable to keep
> it old way.
That's what i want to know. Since they use the method of continous
multiplication in their utility classes they have to do something, don't they ?
So do they correct it the matrix if it starts getting unstable or not and how
do they do it ?
regards
Paul
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