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[sc-users] Modelling acceleration between 2 points in 3D space
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- Subject: [sc-users] Modelling acceleration between 2 points in 3D space
- From: e deleflie <edeleflie@xxxxxxxxx>
- Date: Tue, 16 Jun 2009 11:04:01 +1000
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All,
I've got a Doppler effect going on points moving in space ...using the classic variable delay method. I've got an interface in my score syntax that basically says "move from point a to point b in 10 seconds".
If I dont include some type of acceleration control in that movement, I get a range of clicks, cuts etc ... (and even potentially a sonic boom... which I have heard is supposed to be impressive when modelled ambisonically!).
I've played around with Lag2 and Ramp ... and they kind of do the job but then I lose the accurate timing (because the time lag they introduce is variable).
Does anyone have a way of doing something like .... "move from point a to point b in 10 sec, accelerate in first second, decelerate in last second, but dont move faster than speed of sound" ...
maybe its an envelope (representing speed) or something ...
Etienne