That's brilliant, thanks Christopher. Thought it did something like this, but wasn't sure.
Does this mean the inertia patch is essentially an integrator with an included friction algorithm? Keith On Wed, Sep 9, 2009 at 9:27 PM, Christopher Wright<[email protected]> wrote: >> Can anyone point me to a simple explanation of what the integrator >> patch does, please? > > > The iterator has a single output value, we'll call it "sum". > > Initially, sum = 0; on reset, sum = 0. > > Each frame: > sum += inputValue * frameDuration. > > Thus, if you're running at 60fps (frameDuration = 1/60 sec), and the > InputValue is 1, it will increase at a rate of 1 per second. > If you're running at 6fps (frameDuration = 1/6 sec), and the inputValue is > 1, it will increase at a rate of 1 per second. > (it's framerate invariant -- generally, it will increase at a rate of > inputValue per second). > > Hope that helps some. > > -- > [ christopher wright ] > [email protected] > http://kineme.net/ > > _______________________________________________ Do not post admin requests to the list. They will be ignored. Quartzcomposer-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/quartzcomposer-dev/archive%40mail-archive.com This email sent to [email protected]
