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Premiere Pro scripting keyframe interpolation

Community Beginner ,
Jan 02, 2024 Jan 02, 2024

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Hi to all.
I'm struggling with adding keyframe interpolation in PP.

here is simplyfied code below, I want to interpolate a keyfreme, there are several types of interpolation, but I can't make it work with any of them.

var position = app.project.activeSequence.getSelection()[1].components[1].properties[0];
var currentTime = app.project.activeSequence.getPlayerPosition();
position.setTimeVarying(true);
position.addKey(currentTime);
position.setValueAtKey(currentTime, [0.5,0.5]);
position.setInterpolationTypeAtKey(currentTime, kfInterpMode_Bezier,1);

this script adding a keyframe but at last line it gives me an error.
HELP!!!

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correct answers 1 Correct answer

Community Beginner , Jan 02, 2024 Jan 02, 2024

Thank you, Brusce, that helped.
Here is code which gave me eased key:

var position = app.project.activeSequence.getSelection()[0].components[1].properties[0];
var currentTime = app.project.activeSequence.getPlayerPosition();
position.setTimeVarying(true);
position.addKey(currentTime);
position.setValueAtKey(currentTime, [0.5,0.5]);
var interpol = 5;
position.setInterpolationTypeAtKey(currentTime, interpol,1);


Also if I set var interpol = 4; it give me hold keyframe.
interpolation 1, 2, 3, marked as

...

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Adobe Employee ,
Jan 02, 2024 Jan 02, 2024

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Probably a documentation bug. [Mea culpa.]

In the PProPanel sample, I see:

var KF_Interp_Mode_Bezier = 5;
Try passing '5' instead of "kfInterpMode_Bezier".

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Community Beginner ,
Jan 02, 2024 Jan 02, 2024

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Thank you, Brusce, that helped.
Here is code which gave me eased key:

var position = app.project.activeSequence.getSelection()[0].components[1].properties[0];
var currentTime = app.project.activeSequence.getPlayerPosition();
position.setTimeVarying(true);
position.addKey(currentTime);
position.setValueAtKey(currentTime, [0.5,0.5]);
var interpol = 5;
position.setInterpolationTypeAtKey(currentTime, interpol,1);


Also if I set var interpol = 4; it give me hold keyframe.
interpolation 1, 2, 3, marked as obsolete didn't work for me.

MrDruz_0-1704220781950.png

 

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Adobe Employee ,
Jan 02, 2024 Jan 02, 2024

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Here are valid values, defined in PProPanel (I also cheated, and looked at our source; these are used):

kf.png

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Community Beginner ,
Jan 02, 2024 Jan 02, 2024

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Amazing, thank you!
Can you tell what #6 (time mode) is doing? When I tried it, my PP crashed)

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Adobe Employee ,
Jan 02, 2024 Jan 02, 2024

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6 = Auto crash mode? 😉 

I'll have a look...

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