i have a project that rotate a model. in my computer it is very well .
but in other`s model has sawtooth,why ? hardware?

By “sawtooth”, I imagine you mean without anti-aliasing, the edges aren’t smooth, right?
Are you by any chance using google Chrome?
It seems the latest upgrade to the chrome flash player has some problems.
On my machine it won’t run fullscreen stage3D, and has no anti-aliasing.

https://productforums.google.com/.../4ERrGTmHyAY/Qx-81cmpufkJ

I’ve reported the problem to both Adobe and Google, but no sign of a fix yet.

i just use flash player ,in my computer it works,but in other`s, not good! i guess may be other`s computer doesn`t support GPU!