CLIP ENVINS does not work

[ldrolez]

the envelope is cleared, but nothing is inserted

[ldrolez]

CLIP ENVINS ... SQR now works, but no saws... :(
API was updated in Live 11 and no documentation really exists

[light2peter]

I think it's broken in live 10 also. probably instead of trying to add breakpoints it just has to add a bunch of little steps

[ldrolez]

I played with the API for hours and managed to make a ramp without steps. I've tried to contact some api experts but nobody knows...
As you see there is a way to make a true ramp. It seems like a bug was introduced in the api at some point...

[light2peter]

based on your post, I wonder if the API function insert_step(beat, duration, value) works like this... assuming envelopes are stored as an ordered list of points [(time,val)...]

1. Save the current envelope values @ beat [old1] and beat+duration [old2].
2. Remove any points between beat and beat+duration, inclusive.
3. Add 4 points at:
   (beat, old1), (beat,new),
   (beat+duration, new) (beat+duration,old2)

So that means: if duration is positive it just creates a step. But if duration is negative, this
ends up creating a ramp from whatever the previous point was to (beat+duration, new).
Then a vertical line to (beat+duration, old2), horizontal to (beat, old1), vertical to (beat,new)
So there will always be a "glitch" between beat and beat+duration, but we could overwrite after that with
a short step at the desired value.

[light2peter]

Ideally if duration is 0, the API would just create a single point instead of all 4. but maybe that's not what it does after Live 9.