bezier curve

[pach]

Possibility to edit curve threw bezier points. More flexible and precise than tween option.

[jcelerier]

Started an implementation in git. See process "Spline". For now it's for sending 2D trajectories only but it could be retrofitted to 1D with some additional work.

[jcelerier]

To do

• [ ] Handle tweening.
• [ ] Allow to set a min / max (currently (0; 0) -> (1;1)).
• [ ] Specify how to handle the speed progression across the curve.
• [ ] Maybe a 3D curve with Qt3D ?
• [ ] Process state
• [ ] Remove points
• [ ] Closed mode ? (e.g. last point is linked to the first)
• [ ] Visualisation of the execution in the curve

[bltzr]

re: the speed progression across the curve maybe it would be worth checking HoloEdit... I don't remember exactly how but there was a way to handle this there...

[jcelerier]

one way to do it that @lossius told me is for instance to have an additional automation that controls the speed across the curve.

[bltzr]

or maybe a curve for the "playhead-position" of the curve - this being a strictly 0. to 1. curve (like e.g. interpolations...) ??

[bltzr]

what should we do when a bezier 'handle' goes out of the slot (and then becomes unreachable) ? should we clip their position (which restricts the expressivity) ? or should we have a bigger zone for moving handles around ?

[bltzr]

out-of-zone handle example

[bltzr]

• [ ] a bug: when opening a spline process in fullView, it is scaled over the parent constraint's duration. see screenshots below:

[jln-]

what should we do when a bezier 'handle' goes out of the slot (and then becomes unreachable) ?

Could the box have a scroll bar so that handles (but not points) can be moved around the box real content ?

[jcelerier]

implemented zoom / dezoom / recenter / panning options which will make manipulation easier :

[jcelerier]

this should also fix @bltzr's bug - now the aspect ratio does not depend anymore on the parent layer's size